Lists/M&A
Top 50 U.S. Accounting Firms: Merger and Acquisition Summary (2021–2025)
FIRMS 1-50
1. Deloitte LLP
- Headquarters: New York
- Managing Partner/CEO: Jason Girzadas
- Net Revenue: $33,045,000,000
- Summary
Deloitte expanded its global M&A advisory and restructuring services between 2021–2025, executing multiple corporate finance transactions and publishing extensive advisory analyses.
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2. PwC
- Headquarters: New York
- Managing Partner/CEO: Paul Griggs
- Net Revenue: $24,335,000,000
- Summary
PwC advised on extensive global dealmaking during 2021–2025, maintaining leadership in business transitions and integrations.
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3. Ernst & Young (EY)
- Headquarters: New York
- Managing Partner/CEO: Julie Boland
- Net Revenue: $24,146,000,000
- Summary
EY reported robust deal activity across private equity and healthcare sectors, releasing detailed Merger Monthly reports and 2025 industry analyses.
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4. KPMG LLP
- Headquarters: New York
- Managing Partner/CEO: Bill Thomas
- Net Revenue: $15,200,000,000
- Summary
KPMG conducted major 2025 restructuring studies and cross-border transactions, expanding technology-driven valuation services.
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5. RSM US LLP
- Headquarters: Chicago
- Managing Partner/CEO: Brian Becker
- Net Revenue: $4,034,941,000
- Summary
RSM US sold its Professional Services+ division to Aprio in 2025, restructuring while expanding transaction consulting.
- Related Links
- Aprio to Acquire RSM’s Professional Services+ Practice (2025)
- RSM M&A Insights and Advisory Services
6. Baker Tilly US, LLP
- Headquarters: Chicago
- Managing Partner/CEO: Jeff Ferro
- Net Revenue: $3,360,900,000
- Summary
Baker Tilly completed multiple regional mergers, including acquiring KraftCPAs in 2025 as part of its expansion strategy.
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7. CBIZ, Inc.
- Headquarters: Cleveland, Ohio
- Net Revenue: $1,807,000,000
- Summary
CBIZ expanded through steady acquisitions across healthcare and advisory services during 2021–2025.
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8. BDO USA, P.C.
- Headquarters: Chicago
- Managing Partner/CEO: Wayne Berson
- Net Revenue: $2,885,000,000
- Summary
BDO USA executed multiple M&A transactions advancing its national expansion strategy. In September 2025, BDO agreed to merge with top 40 firm HORNE LLP, adding more than 1,300 professionals across the southeastern U.S. and Puerto Rico. Earlier in 2025, BDO also acquired Blue Beyond Consulting, strengthening human capital management consulting within its advisory network. These moves represent BDO’s largest strategic expansions and aim to enhance its government, technology, and workforce solutions divisions.
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9. Grant Thornton LLP
- Headquarters: Chicago
- Managing Partner/CEO: Jim Peko
- Net Revenue: $2,365,915,000
- Summary
Grant Thornton enhanced its advisory and M&A diligence capabilities through two major acquisitions in 2025 — Auxis and Stax, both strategy and outsourcing consultancies. The Auxis deal expanded nearshore technology and transformation services, while the Stax acquisition strengthened private equity diligence capabilities under Grant Thornton Advisors LLC. The firm now supports over 600 private equity relationships, representing nearly 70% of the U.S.-based PE International 300 network.
- Related Links
- Grant Thornton Acquires Auxis (2025)
- Grant Thornton Adds Stax for Diligence and Value Creation (2025)
10. Forvis Mazars LLP
- Headquarters: United States and France
- Managing Partner/CEO: Tom Watson
- Net Revenue: $2,240,523,000
- Summary
The Forvis-Mazars merger, valued at approximately $5 billion, marked one of the most transformative global accounting combinations of the decade. Announced in November 2023 and finalized in June 2024, the merger formed Forvis Mazars, creating a unified global network while retaining autonomy within both firms’ ownership structures. The partnership significantly enhanced international coverage across audit, tax, and advisory, positioning the network among the top ten globally. Since 2024, Forvis Mazars has reinforced transaction advisory leadership, with active M&A insights across U.S. and international markets.
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11. CliftonLarsonAllen LLP (CLA)
- Headquarters: Minneapolis, Minnesota
- Managing Partner/CEO: Jen Leary
- Net Revenue: $1,820,727,000
- Summary
CliftonLarsonAllen (CLA) has consistently expanded via mergers and targeted acquisitions. Between 2023–2025, CLA absorbed several regional and international firms including Dembo Jones CPAs and Advisors (May 2025), Engine B (UK-based technology firm, July 2025), Axiom CPAs (New Mexico, July 2024), and SobelCo (New Jersey, 2023). These transactions align with CLA’s five-year strategic plan to grow by $1 billion through acquisition while adopting AI innovations and digital service transformation.
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12. BPM LLP
- Headquarters: San Francisco, California
- Managing Partner/CEO: Jim Wallace
- Net Revenue: $1,260,000,000
- Summary
BPM pursued aggressive domestic and international growth through a series of mergers from 2023–2025, including O&S CPAs and Business Advisors (Long Beach, CA, 2023), and WBM Partners LLP (Canada, 2025). These moves expanded BPM’s presence in key North American markets, adding offices in Calgary, Toronto, and Southern California. BPM now operates as a top 35 U.S. firm with a strong specialty in cross-border M&A, blockchain, and advisory services.
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13. CohnReznick LLP
- Headquarters: New York
- Managing Partner/CEO: David Kessler
- Net Revenue: $1,237,000,000
- Summary
CohnReznick advanced its mergers and acquisitions focus through corporate advisory and private equity sectors, including the creation of its Merger Integration and Carve-out (MICO) Practice (2024) and the expansion of Value360 advisory services. It executed multiple PE-backed deals in 2025, with spotlight coverage from the Journal of Accountancy. The firm’s 2025 midyear manufacturing M&A report noted record deal volume across industrial and energy sectors.
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14. Eide Bailly LLP
- Headquarters: Fargo, North Dakota
- Managing Partner/CEO: Jeremy Hauk
- Net Revenue: $757,000,000
- Summary
Eide Bailly completed a series of acquisitions between 2023–2025 that significantly expanded its geographic presence. In 2025 alone, the firm added Hamilton Tharp LLP (Solana Beach, CA), Traner Smith (Edmonds, WA), and Apple Growth Partners (Akron, OH). These transactions enhanced the firm’s foothold in the Midwest, Pacific Northwest, and California. Additionally, in 2024 Eide Bailly sold its $1.6 billion wealth management business to Sequoia Financial Group as part of a strategic divestiture to focus on core tax and advisory services.
- Related Links
- Eide Bailly Acquires Hamilton Tharp LLP (2025)
- Apple Growth Partners Combination (2025)
- Sequoia Financial Acquires Wealth Unit (2024)
15. Moss Adams LLP
- Headquarters: Seattle, Washington
- Managing Partner/CEO: Eric Miles
- Net Revenue: $1,260,000,000
- Summary
Moss Adams entered a landmark combination with Baker Tilly US LLP in April 2025, forming a $7 billion unified firm under the Baker Tilly name. The combined entity now ranks as the sixth-largest U.S. professional services firm, expanding global operations while consolidating West Coast operations. The partnership was backed by Hellman & Friedman and Valeas Capital Partners, bringing private equity into the middle-market accounting space. Before this, Moss Adams specialized in M&A consulting, tax structuring, and post-merger integration.
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16. Armanino LLP
- Headquarters: San Ramon, California
- Managing Partner/CEO: Matt Armanino
- Net Revenue: $640,400,000
- Summary
Armanino executed several key growth initiatives from 2021–2025. It completed a merger with Janover LLC (New York) in 2023 and in 2024 secured a minority investment from Further Global Capital Management, joining the wave of large firms supported by private equity capital. This investment facilitated further acquisitions and modernization of advisory services, particularly in AI, digital transformation, and Valuation & M&A consulting. Armanino also brought on nine new partners as part of its 2024–2025 expansion phase.
- Related Links
- Armanino Acquires Janover LLC (2023)
- Armanino M&A Consulting Practice (2024)
- Armanino Private Equity Minority Investment (2024)
17. Marcum LLP
- Headquarters: New York, New York
- Managing Partner/CEO: Jeffrey M. Weiner
- Net Revenue: $1,320,000,000
- Summary
Marcum LLP was acquired by CBIZ Inc. in a historic $2.3 billion transaction completed in November 2024. This acquisition created a combined entity with approximately $2.8 billion in revenues, positioning CBIZ as one of the largest integrated professional service providers in the U.S. The merger completed the integration of Marcum’s audit, tax, and advisory services under CBIZ’s administrative service structure and formally dissolved Marcum as an independent partnership. The deal followed Marcum’s earlier consolidation with Friedman LLP in 2022.
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18. Plante Moran
- Headquarters: Southfield, Michigan
- Managing Partner/CEO: Jim Proppe
- Net Revenue: $1,220,000,000
- Summary
Plante Moran expanded its mergers and acquisitions portfolio through its consulting practice, becoming a key U.S. leader in integration strategy, transaction risk management, and M&A tax optimization. Between 2023–2025, the firm hosted multiple events focused on M&A integration innovation, issued practical research on post-deal operational readiness, and expanded its Technology Merger Advisory and Tax Transaction capabilities. While not heavily acquisitive itself, Plante Moran served as lead advisor for numerous private equity transactions, enhancing its national reputation for corporate M&A integration.
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19. Cherry Bekaert LLP
- Headquarters: Richmond, Virginia
- Managing Partner/CEO: Michelle Thompson
- Net Revenue: $1,020,000,000
- Summary
Cherry Bekaert executed a series of strategic acquisitions between 2023–2025, focusing on enhancing regional and sector-specific reach. In 2025, the firm acquired Jameson & Company CPAs (Massachusetts) and Spicer Jeffries LLP (Florida), expanding its government contracting, life sciences, and financial services practices. It is also finalizing a pending acquisition of Herbein + Company (Pennsylvania) announced in October 2025. Earlier deals included the 2024 merger with Katz, Nannis + Solomon (Boston area). By 2025, Cherry Bekaert ranked among the 15 largest U.S. firms, benefiting from steady growth driven by strategic acquisitions and private equity-backed expansion.
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20. Crowe LLP
- Headquarters: Chicago, Illinois
- Managing Partner/CEO: Mark Baer
- Net Revenue: $1,020,000,000
- Summary
Crowe LLP continued to expand through technology-driven acquisitions and advisory integrations. In October 2023, Crowe acquired Spark.Orange, a Salesforce cloud platform implementation partner based in Syracuse, New York. This acquisition enhanced Crowe’s digital advisory and CRM consulting portfolio for clients in finance, healthcare, and higher education. Additionally, Crowe served as sponsor for the 2025 Bank M&A Annual Survey, highlighting its thought leadership in U.S. financial industry transactions. The firm reinforced its presence in banking, private equity, and ESG services through organic and strategic growth initiatives across the U.S.
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21. BKD CPAs & Advisors (Now FORVIS)
- Headquarters: Springfield, Missouri
- Managing Partner/CEO: Tom Watson
- Net Revenue (Pre-Merger): $758,000,000
- Summary
BKD completed a transformative merger with Dixon Hughes Goodman (DHG) in 2022 to create FORVIS, one of the nation’s top 10 public accounting firms with combined revenues of approximately $1.4 billion. The merger strengthened service offerings across financial services, healthcare, and manufacturing sectors while supporting national and international expansion. The new entity established FORVIS Mazars Wealth Advisors in 2022 following the consolidation of BKD and DHG’s wealth divisions. By 2025, FORVIS Mazars had grown over 13% annually since the merger, maintaining leadership in advisory, valuation, and audit domains.
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22. Clifton Gunderson LLP
- Headquarters: Milwaukee, Wisconsin (Historic)
- Managing Partner/CEO: Krista McMasters (Pre-Merger)
- Net Revenue (Pre-Merger): $250,000,000 (2011)
- Summary
Clifton Gunderson, a top-20 regional accounting firm, merged with LarsonAllen LLP on January 2, 2012, forming CliftonLarsonAllen (CLA) as part of a national consolidation wave. The merger, valued at approximately $470 million combined revenue, positioned CLA as a top-10 firm in the U.S. and set the foundation for CLA’s significant national expansion between 2015–2025. This merger is regarded as a seminal event influencing subsequent mega-mergers such as BKD–DHG and Moss Adams–Baker Tilly alliances.
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23. Wipfli LLP
- Headquarters: Milwaukee, Wisconsin
- Managing Partner/CEO: Kurt Gresens
- Net Revenue: $660,000,000
- Summary
Wipfli LLP entered a new phase of growth through both acquisitions and private equity partnerships. In April 2024, the firm acquired Harbour Results, Inc. to expand its manufacturing-industry consulting capabilities. That same year, it purchased two business units of Sheshunoff Consulting + Solutions, enhancing risk management and loan review services. In August 2025, Wipfli announced a significant minority investment from New Mountain Capital, becoming the latest Top 25 firm to partner with private equity. Wipfli also divested its wealth subsidiary to Creative Planning in 2023 to focus on core advisory operations.
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24. Carr Riggs & Ingram (CRI)
- Headquarters: Enterprise, Alabama
- Managing Partner/CEO: Bill Carr
- Net Revenue: $560,000,000
- Summary
CRI has emerged as one of the fastest-growing U.S. firms through a sequence of strategic mergers and private equity backing. After receiving a growth investment from Centerbridge Partners and Bessemer Venture Partners in late 2024, CRI completed its largest deal in January 2025 with the acquisition of CapinCrouse LLP, the nation’s leading nonprofit CPA firm. The firm further expanded into Texas by merging with Axley & Rode, LLP in June 2025, broadening its footprint across the Southeast. CRI’s subsidiary, CRI M&A Advisors, continues to deliver transaction advisory and integration support services for family-owned and closely held businesses nationwide.
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25. Councilor, Buchanan & Mitchell (PC) (CBM)
- Headquarters: Bethesda, Maryland
- Managing Partner/CEO: Peter Reilly
- Net Revenue: $75,000,000
- Summary
Councilor, Buchanan & Mitchell (PC) has expanded steadily through seven mergers over the past five years, building deep regional expertise in nonprofit, construction, and automotive industries. CBM completed multiple acquisitions of local practices in Maryland and Virginia since 2020, bolstering its niche in auditing and valuation for midmarket clients. The firm also maintains a dedicated M&A practice focused on advising business owners on transition strategies and valuation modeling throughout the Mid-Atlantic.
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26. Aldrich CPAs + Advisors LLP
- Headquarters: Lake Oswego, Oregon
- Managing Partner/CEO: John Lauseng
- Net Revenue: $86,200,000
- Summary
Aldrich CPAs + Advisors expanded its Western U.S. footprint through mergers and advisory growth. In November 2024, Aldrich acquired HMA CPA of Spokane, WA, adding its eighth office across five states. The merger added 40-year regional expertise across Washington and Idaho. Aldrich Capital Advisors, the firm’s transaction advisory division, continues to provide buy-side and sell-side advisory support for private companies. In 2025, the firm expanded further into business valuation and deal due diligence services via Aldrich Capital LP and its M&A advisory practice.
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27. Elliott Davis LLC
- Headquarters: Greenville, South Carolina
- Managing Partner/CEO: John Otten (from 2025)
- Net Revenue: $170,000,000
- Summary
In June 2022, Elliott Davis planned a merger with Whitley Penn LLP to form Elliott Penn, which would have created a $400 million regional powerhouse, but the deal was mutually canceled by early 2023. In June 2025, the firm announced a major private-equity partnership with Flexpoint Ford, a Chicago-based PE firm managing $8.2 billion in assets, to accelerate its growth and support an expansion-through-acquisition strategy. Elliott Davis will operate under an alternative practice structure, maintaining separate attest and advisory entities. Recent publications highlight the firm’s expansion efforts and work with technology and financial-sector M&A clients.
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28. Blue & Co. LLC
- Headquarters: Carmel, Indiana
- Managing Director: Brad Shaw
- Net Revenue: $132,900,000 (2024)
- Summary
Blue & Co. LLC carried out multiple mergers in 2022–2025 to strengthen its Midwest presence. The firm acquired Alerding CPA Group (Indianapolis) in November 2022 and Mellen, Smith & Pivoz (Detroit) in November 2024. These additions expanded Blue’s footprint across Indiana and Michigan with new tax, valuation, and consulting services. Founded in 1970, Blue continues to pursue mergers to solidify its top-60 ranking and enhance transaction advisory capabilities for clients nationwide.
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29. Rehmann
- Headquarters: Troy, Michigan
- Managing Partner/CEO: Stacie Kwaiser
- Net Revenue: $230,000,000
- Summary
Rehmann LLC has expanded significantly through a series of mergers strengthening its Midwest and Southeast presence. In March 2025, the firm merged with Kmetz, Elwell, Graham & Associates (Florida). In May 2025, Rehmann also completed a business combination with Martinet Recchia (Cleveland, Ohio), adding manufacturing and hospitality client reach across Ohio’s Treasure Coast region. The firm’s wealth division continues to expand post-merger integration with Walker, Fluke & Sheldon (2024). Rehmann maintains a dedicated M&A tax structuring practice for middle-market clients.
- Related Links
- Rehmann Merges with KEGA (CPA Practice Advisor, 2025)
- Rehmann Joins Forces with Martinet Recchia (2025)
30. BKD Wealth Advisors (Now Forvis Mazars Wealth Advisors)
- Headquarters: Springfield, Missouri (now Charlotte, North Carolina)
- Managing Partner/President: Steve Toomey
- Assets Under Management: $7.7 billion (2022)
- Summary
In May 2022, BKD Wealth Advisors merged with DHG Wealth Advisors to form Forvis Mazars Wealth Advisors, a subsidiary of the newly created Forvis Mazars global network. The combined entity manages more than $9 billion in assets under advisement and serves clients from 23 offices in 12 states. This merger accelerated BKD’s integration of wealth management and financial planning into the broader Forvis Mazars organization. It was among the first large-scale accounting-wealth consolidations in the United States and continues to serve high-net-worth and institutional clients nationwide.
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31. EisnerAmper LLP
- Headquarters: New York City, New York
- CEO: Charles Weinstein
- Net Revenue: $710,000,000
- Summary
EisnerAmper has continued to expand its national and international reach through steady acquisition activity backed by private-equity investment. Following its landmark 2021 deal with TowerBrook Capital Partners, the firm acquired KROST CPAs (Los Angeles) in August 2024 and Prague & Co. (Massachusetts) in April 2025. These additions broadened EisnerAmper’s expertise in trusts, estate planning, and private equity advisory services. The firm continues to focus on mid-market mergers and divestitures, with ongoing publications on transaction tax and valuation strategy.
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32. Citrin Cooperman
- Headquarters: New York City, New York
- CEO: Alan Badey
- Net Revenue: $600,000,000
- Summary
Citrin Cooperman experienced a surge of M&A activity and private-equity backing between 2023–2025. In January 2024, it acquired MIBAR (New York City), a business software consulting firm with ERP and CRM expertise, expanding its digital services portfolio. In November 2024, Citrin Cooperman absorbed Clearview Group (Baltimore area), adding 150 professionals in risk and enterprise solutions. In February 2025, it announced the acquisition of HW&Co. (Ohio) and in September 2025 the purchase of ORBA (Chicago), strengthening its Midwest reach. Citrin Cooperman also expanded to the West Coast in August 2025 through a deal with BPSD LLP. In January 2025, the firm received a capital investment from Blackstone Growth, its second private-equity backer since 2021.
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33. PKF O’Connor Davies LLP
- Headquarters: Harrison, New York
- Managing Partner/CEO: Kevin J. Keane
- Net Revenue: $350,000,000
- Summary
PKF O’Connor Davies completed multiple strategic transactions between 2022–2025. In November 2024, it secured a major growth investment from Investcorp and PSP Investments, advised by Capstone Partners. The capital infusion funded acquisitions and practice expansion across the Mid-Atlantic and Northeast. In August 2025, PKF O’Connor Davies merged with Rainer & Company (Pennsylvania), adding 30 professionals and deepening industry coverage. The firm continues to strengthen its advisory service line through transaction support and post-merger integration consulting.
- Related Links
- PKF O’Connor Davies Welcomes Rainer & Company (2025)
- PKF O’Connor Davies’ Private Equity Investment (2024)
34. Withum
- Headquarters: Princeton, New Jersey
- Managing Partner/CEO: Pat Walsh
- Net Revenue: $567,000,000
- Summary
Withum expanded substantially across New England and the Midwest through a series of strategic mergers between 2023–2025. In January 2023, it acquired O’Connor & Drew (Massachusetts), adding 130 professionals to extend its northeastern reach. In April 2025, Withum merged with CTM CPAs & Business Advisors (Illinois), expanding its Midwestern presence. In August 2025, the firm completed a high-profile merger with Freed Maxick CPAs (Buffalo) to enhance cross-border advisory services. Withum continues to broaden its transaction advisory and integration consulting offerings with strong client representation in healthcare and technology sectors.
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35. Cohen & Company
- Headquarters: Cleveland, Ohio
- Managing Principal/CEO: Chris Bellamy
- Net Revenue: $426,000,000
- Summary
Cohen & Company continued its expansion in transaction advisory and capital markets through its Cohen & Company Capital Markets (CCM) divisional growth. Operating from Menlo Park and New York, CCM closed over $18 billion in M&A volume and raised $5 billion in capital since its founding in 2021. The firm strengthened its M&A presence in the financial services and SPAC advisory sectors, cementing Cohen’s role as a boutique leader in cross-industry deals. Focused on wealth, funds, and financial institutions, it continues to capitalize on capital market volatility through strategic advisory opportunities through 2025.
- Related Links
- Cohen & Company Capital Markets Growth Report (2023)
- Cohen & Company Financial Performance Update (2025)
36. Baker Newman Noyes (BNN)
- Headquarters: Portland, Maine
- Managing Principal/CEO: Eleanor Baker
- Net Revenue: $186,000,000
- Summary
Baker Newman Noyes (BNN) broadened its presence in New England and expanded its consulting and financial advisory divisions between 2023–2025. Through its Mergers & Acquisitions Advisory Services practice, the firm positioned itself as a premier regional advisor in life sciences, healthcare, and professional services transactions. In 2024–2025, BNN sponsored its annual Northeast State of Mergers & Acquisitions Conference and hosted mid-market roundtables to align with private equity investor activity. Though no firm-wide mergers occurred, its noted organic service expansion earned industry recognition for accelerated growth in PE-related advisory deals.
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37. Armanino McKenna LLP
- Headquarters (pre-merger): San Jose, California
- Merged into: Armanino LLP (2011–2012)
- Summary
Armanino McKenna, a California-based regional CPA and business consulting firm, completed a series of strategic technology acquisitions prior to its full merger into Armanino LLP, a legacy that continues to influence its cloud and M&A advisory practice today. The firm’s key transactions included the AccessTek (acquired 2012) and Gateway Solutions (acquired 2011) mergers, each expanding cloud accounting and ERP solution capabilities for technology clients. These moves paved the way for Armanino’s modern role as a national leader in Intacct and digital financial management integration services.
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38. BKHM CPAs
- Headquarters: Orlando, Florida
- Managing Partner: Brad Beemer (Founding Partner)
- Net Revenue: $48,000,000
- Summary
BKHM CPAs provides M&A support for clients across the medical, manufacturing, and retail industries via its business valuation and transaction consulting divisions. The firm actively advises practice mergers in healthcare and assists private companies with due diligence and valuation services. BKHM’s 2024–2025 growth strategy focuses on expanding its presence in Florida’s emerging biotech and hospitality markets through M&A-driven consulting and succession planning.
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39. Brown Edwards & Company LLP
- Headquarters: Roanoke, Virginia
- Managing Partner: Jason Hartman
- Net Revenue: $200,000,000
- Summary
Brown Edwards has sustained a consistent M&A-based growth model across the Mid-Atlantic and Appalachian regions. Since 2021, the firm acquired Mitchell Wiggins CPAs (Metro Richmond, VA) and the Gibbons & Kawash firm (Charleston, WV), followed by the Roanoke and Lynchburg practices of Cherry Bekaert in 2024. These deals established one of the largest independent CPA networks in Virginia and West Virginia, now operating in 10 offices with over 350 employees. The firm also expanded its advisory group with a new consulting division in June 2025 targeted at succession planning and post-deal integration.
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40. Dean Dorton PLLC
- Headquarters: Lexington, Kentucky
- President & CEO: David Bundy
- Net Revenue: $145,000,000
- Summary
Dean Dorton accelerated its national expansion through major acquisitions in 2024 and 2025. It merged with VonLehman CPA & Advisory (Indiana and Ohio) on January 1, 2024 and acquired DeRosa Mangold Consulting (Waco, Texas) in July 2024. In December 2024, Dean Dorton also merged with Shilts CPA (Jacksonville, Florida), extending its reach to the Southeast. These transactions strengthened its ERP and technology consulting capabilities and cemented its status as a leading advisory and transaction services firm in the U.S.
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41. BPM LLP
- Headquarters: San Francisco, California
- Managing Partner: Jim Wallace
- Net Revenue: $255,000,000
- Summary
Between 2023 and 2025, BPM LLP executed a series of major domestic and international combinations to accelerate its growth. In March 2025, it completed a merger with WBM Partners LLP (Canada), expanding into Toronto, Calgary, and Montreal and forming the foundation for BPM Global Ltd., a network of member firms spanning Australia and North America. This followed the acquisition of Infinitech (Network Services, MSP) in October 2023 and Fair, Anderson & Langerman (CPA Firm, Nevada) in December 2024. The firm has significantly expanded its advisory and transaction tax capabilities with dedicated practices in cross-border M&A and corporate finance.
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42. Anchin Block & Anchin LLP
- Headquarters: New York City, New York
- Co-Managing Partners: Russell Shinsky and Christopher Edgecomb
- Net Revenue: $173,000,000
- Summary
Anchin Block & Anchin remains one of the largest independent New York advisory firms focused on transaction tax, private equity, and buy-side financial due diligence. Since 2022, its Transaction Advisory Services and Private Equity Groups have executed numerous deal advisory mandates for consumer products and construction clients. The firm also expanded into strategic exit planning with its Growth, Transition & Exit Strategies Division (2025). Anchin maintains a leading position for valuation, 409A pricing, and quality-of-earnings assessment for private equity portfolio transactions.
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43. BerryDunn
- Headquarters: Portland, Maine
- CEO: Sarah Belliveau
- Net Revenue: $189,000,000
- Summary
BerryDunn expanded through a combination of strategic mergers to deepen its outsourced accounting and healthcare M&A services. In December 2024, it acquired Burzenski & Co. (East Haven, Connecticut), its fourth New England integration since 2017. Earlier that year, the firm merged with GreenPlay LLC (Boulder, Colorado) to expand its park and recreation consulting practice. The firm continues to focus on health services deals through its Transaction Advisory Group, specializing in M&A due diligence and valuation for healthcare and governmental entities.
- Related Links
44. Eide Bailly LLP
- Headquarters: Fargo, North Dakota
- Managing Partner/CEO: Jeremy Hauk
- Net Revenue: $705,000,000
- Summary
Eide Bailly continued its national expansion through multiple acquisitions and divestitures between 2023 and 2025. In May 2025, it welcomed Volpe Brown & Co. LLC (Ohio) and Traner Smith (Washington) to reinforce regional reach and compliance services. The firm divested its $1.6 billion wealth management division to Sequoia Financial Group in 2024 to deepen its core focus on public accounting and advisory services. This strategic partnership enabled Eide Bailly to expand collaboration while enhancing cross-discipline advisory capabilities. These moves solidified its position as a Top 20 firm with a strong presence across the Mountain West and Pacific Northwest.
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45. Wiss & Company LLP
- Headquarters: Florham Park, New Jersey
- CEO: Paul Peterson (Managing Partner)
- Net Revenue: $95,000,000
- Summary
Wiss & Company emerged as a recognized Top 100 firm with robust M&A and valuation advisory practices. From 2023 through 2025, the firm expanded its Mergers, Acquisitions & Valuation Services line serving mid-market companies undergoing corporate buyouts, recapitalizations, and management transitions. Wiss Capital Advisors launched in 2025 to lead private equity transactions and financing arrangements. CFO Advisory and Business Strategy divisions also expanded as Wiss leveraged AI-driven data analytics for post-merger integration reporting and valuation efficiency. The firm maintains a reputation for cross-disciplinary expertise in wealth management, digital strategy, and M&A modeling.
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46. WilkinGuttenplan PC (W & G)
- Headquarters: East Brunswick, New Jersey
- Co-Managing Shareholders: Ed Wilkin and Ed Guttenplan
- Net Revenue: $77,500,000
- Summary
WilkinGuttenplan continued its M&A advisory growth and client service integration through 2023–2025. Following its prior integration of McDevitt & Company in 2022, the firm expanded its succession-planning and M&A consulting capabilities with dedicated divisions focused on tax-efficient acquisition structuring and valuation. WilkinGuttenplan’s industry-focused teams advised on numerous medical-practice and construction firm mergers throughout 2024–2025 and produced insight reports on post-transaction integration for closely held businesses.
- Related Links
- WilkinGuttenplan Mergers & Acquisitions Services (2024)
- WilkinGuttenplan M&A Advisory Insights (2025)
47. CliftonLarsonAllen (CLA LLP)
- Headquarters: Minneapolis, Minnesota
- CEO: Jen Leary
- Net Revenue: $2,230,000,000
- Summary
Between 2023 and 2025, CLA completed a series of strategic combinations to advance its “$1 billion organic growth” initiative. Key deals included Axiom CPAs (New Mexico, 2024) and Dembo Jones (Maryland, 2025). Earlier, CLA expanded through Hayashi Wayland (California), Concannon Miller (Florida), and Price CPAs (Tennessee). The firm continues to grow as one of the nation’s largest independents, maintaining local autonomy with a national platform structure. M&A integration has helped CLA surpass $2 billion in revenue and strengthened its technology, audit, and advisory capabilities across more than 130 offices in the U.S.
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48. Mauldin & Jenkins LLC
- Headquarters: Atlanta, Georgia
- Managing Partner: Hanson Borders
- Net Revenue: $200,000,000
- Summary
Mauldin & Jenkins advanced its regional expansion through a notable merger with Bradshaw, Gordon & Clinkscales (BGC) of Greenville, South Carolina on June 1, 2025. BGC’s seven new partners and 42 professionals joined M&J’s growing Southeastern footprint as part of its mission to deliver integrated accounting and advisory solutions. The deal enhanced M&J’s presence across South Carolina and strengthened its expertise in construction, finance, and manufacturing. Supported by its Mergers & Acquisitions Advisory Practice, Mauldin & Jenkins has positioned itself for steady growth along the Southeast corridor through 2026.
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49. Katz Sapper & Miller (KSM)
- Headquarters: Indianapolis, Indiana
- CEO & President: Tim Cook
- Net Revenue: $166,000,000
- Summary
KSM recorded multiple expansions in 2024–2025, including the acquisition of ValueKnowledge LLC (Chicago) and Shanholt Glassman Klein Kramer & Co. (New York). In August 2025, it entered the greater Chicago market through a deal with MichaelSilver (Deerfield, IL). These moves bolstered KSM’s valuation, estate planning, and healthcare M&A consulting divisions. The firm also expanded its Healthcare Mergers & Acquisitions Practice, offering data-driven valuation and transaction support to medical groups and investors. KSM now maintains a multi-regional presence across the Midwest and Northeast, with over 600 professionals nationwide.
- Related Links
= 50. Anchin Block & Anchin LLP +
Location: New York, NY Leadership: Russell B. Shinsky (Managing Partner) Net Revenue: $150,733,000
Firm Summary
Founded in 1923 by David Anchin, Max Anchin, and Max Block, Anchin, Block & Anchin LLP remains a partner-owned, independent accounting and advisory firm in New York City. The firm staffs roughly 600 professionals, including over 65 partners. Anchin operates offices in New York City, Uniondale (Long Island), Boca Raton, and Palm Beach Gardens, Florida. The firm offers audit and assurance, tax and compliance, advisory, transaction services, forensic & valuation, and client accounting advisory, with industry focus in real estate, construction, consumer products, technology, professional services, and financial services. It is ranked among the top-50 U.S. CPA firms by Inside Public Accounting and is a member of the BKR International network. Anchin has been repeatedly named a “Best Place to Work” in New York and a “Top Tax Firm.”
Mergers & Acquisitions (Oct 2023 – Oct 2025)
No mergers or acquisitions identified during the October 2023 to October 2025 research period. The firm’s public announcements during that interval focus on internal growth, partner additions, leadership appointments, and office expansions—not acquisitions of external firms.
