Advisor directory · 639 listings
Advisor directory
Tiers in the calculator come from 27 public lists, including LSEG league tables, the Am Law Global 200, PCAOB inspection lists, INSIDE Public Accounting and Axial. This site does not rank firms.
A firm is placed in the first tier list it appears on, in the order below. Firms on none of the lists are grouped as "not on a tier list".
How firms are assigned to tiers
The 27 lists hold 278 investment-bank listings, 241 law-firm listings and 118 audit-firm listings, plus the two business-broker professional bodies (IBBA and M&A Source).
Investment banks and M&A advisors
- Bulge bracket — Bulge bracket
- Elite boutique — Elite boutique
- Middle market — LSEG US Target Mid-Market (MM2) FY2025 (US target, financial advisors, by # of deals); LSEG US Target Mid-Market (MM2) FY2024 (US target, financial advisors, by # of deals); LSEG US Target Mid-Market (MM2) FY2023 (US target, financial advisors, by # of deals); Middle market investment bank (examples)
- Lower middle market — LSEG US Target Small-Cap (MM2a) FY2025 (US target, financial advisors, by # of deals); LSEG US Target Small-Cap (MM2a) FY2024 (US target, financial advisors, by # of deals); Axial Top 25 Lower Middle Market Investment Banks 2024; Axial Top 25 Lower Middle Market Investment Banks 2025
Law firms
- Largest US firms by revenue (Am Law Global 200) — Largest law firms by revenue (Am Law Global 200 2025, US-headquartered subset); Am Law 100 2026 - top by gross revenue (publicly reported subset)
- M&A league-table firms (LSEG) — LSEG US Target Announced M&A (AE2) FY2025 - legal advisors by # of deals; LSEG US Target Announced M&A (AE2) FY2025 - legal advisors by value; LSEG US Target Announced M&A (AE2) FY2024 - legal advisors by # of deals; LSEG US Target Announced M&A (AE2) FY2024 - legal advisors by value; LSEG US Target Mid-Market (MML2) FY2025 - legal advisors by # of deals; LSEG US Target Mid-Market (MML2) FY2024 - legal advisors by # of deals
Audit firms
- Big Four — Big Four
- Other PCAOB annually inspected US firms — PCAOB U.S. Global Network Firms (six largest U.S. annual firms); PCAOB Non-Affiliate Annual Firms (U.S. annual firms other than the six largest)
- IPA 100 largest US CPA firms — IPA 100 (2026) - largest U.S. CPA firms by net revenue
Tiers reproduce third-party lists. They are not an assessment of quality, capability or suitability, and this site does not recommend any firm.
The lists
Bulge bracket 8 firms
Wikipedia 'Modern list' section: eight banks as of March 2023 (after UBS acquired Credit Suisse), citing Corporate Finance Institute, Wall Street Oasis (2020) and Investopedia (2022); article says designation is 'primarily based on the bank's financial advisory business'. Listed alphabetically, not ranked. Source, checked 2026-09-13 — “Bulge bracket banks are the world's largest global investment banks, serving mostly large corporations, institutional investors and governments.”
Bank of America · Barclays · Citigroup · Deutsche Bank · Goldman Sachs · JPMorgan Chase · Morgan Stanley · UBS
Elite boutique 10 firms
Mergers & Inquisitions (Brian DeChesare) list shown as an image, 'displaying in alphabetical order', explicitly NOT ranked; three firms carry '(???)' and Rothschild '(only in Europe)'. Article adds that by league-table data Evercore, Lazard and Centerview most consistently place top ~10 worldwide. Page published 2019-12-04, modified 2026-03-01. Career-guide source, not a data vendor. Source, checked 2026-09-13 — “An elite boutique investment bank (EB) is a non-full-service firm that focuses on M&A Advisory or Restructuring, rather than capital markets”
Centerview Partners · Evercore · Greenhill · Guggenheim · Lazard · Moelis & Company · Perella Weinberg Partners · PJT Partners · Qatalyst Partners · Rothschild & Co
Boutique investment bank (notable, Wikipedia) 19 firms
Wikipedia 'Notable boutique investment banks' partial list (cites careerprinciples.com and Mergers & Inquisitions); no inclusion criteria stated; Wikipedia does NOT label these 'elite'. Alphabetical, not ranked. Source, checked 2026-09-13 — “A boutique investment bank is a small investment bank that specializes in at least one aspect of investment banking, generally corporate finance”
Allen & Company · Centerview Partners · Ducera Partners · Evercore · Financial Technology Partners · Greenhill & Co. · Guggenheim Partners · Houlihan Lokey · Lazard · Leerink Partners · LionTree · Moelis & Company · Perella Weinberg Partners · PJT Partners · Qatalyst Partners · The Raine Group · Rothschild & Co · Seabury Capital · Zaoui & Co.
Middle market investment bank (examples) 19 firms
Mergers & Inquisitions logo image of 'some of the main MM firms in alphabetical order' (author says he is 'not going to list every single bank'). Image uploaded 2020-01; page modified 2026-03-01. Not ranked; career-guide source. Some firms have since changed ownership (see notes file) - verify before display. Source, checked 2026-09-13 — “A middle market investment bank is a full-service firm that offers debt, equity, and M&A advisory services and tends to work on deals worth less than $500 million”
Baird · Brown Gibbons Lang & Company · Cowen · Harris Williams · Houlihan Lokey · Janney · Jefferies · JMP · Lincoln International · Needham · Oppenheimer · Piper Sandler · PJ Solomon · Raymond James · Stephens · Stifel · Truist · Wedbush · William Blair
LSEG US Target Mid-Market (MM2) FY2025 (US target, financial advisors, by # of deals) 25 firms
LSEG Deals Intelligence league table 'United States Target Mid-Market (MM2)', financial advisors ranked by number of deals, announced deals 2025; mid-market = up to US$500m incl. undisclosed-value deals; advisors receive full credit per deal. Top 25 as printed. Source, checked 2026-09-13 — “Global mid-market M&A deals would include transactions valued up to US$500 million (including undisclosed value deals).”
Houlihan Lokey #1 · Generational Equity #2 · Jefferies LLC #3 · Piper Sandler & Co #4 · JP Morgan #5 · Goldman Sachs & Co #6 · Raymond James Financial Inc #6 · Lincoln International #8 · William Blair & Co #8 · Stifel/KBW #10 · Robert W Baird & Co Inc #11 · Moelis & Co #12 · Benchmark International #13 · Evercore Inc #14 · Morgan Stanley #15 · Lazard #16 · Harris Williams & Co #17 · Citi #18 · Guggenheim Securities LLC #18 · KeyBanc Capital Markets Inc #20 · Oaklins #21 · Canaccord Genuity Grp Inc #22 · BofA Securities Inc #23 · Stout #23 · Barclays #25
LSEG US Target Mid-Market (MM2) FY2024 (US target, financial advisors, by # of deals) 25 firms
LSEG Deals Intelligence league table 'United States Target Mid-Market (MM2)', financial advisors ranked by number of deals, announced deals 2024; mid-market = up to US$500m incl. undisclosed-value deals; advisors receive full credit per deal. Top 25 as printed. Source, checked 2026-09-13 — “Global mid-market M&A deals would include transactions valued up to US$500 million (including undisclosed value deals).”
Houlihan Lokey #1 · Jefferies LLC #2 · William Blair & Co #3 · Generational Equity #4 · Piper Sandler & Co #5 · Raymond James Financial Inc #6 · Stifel/KBW #7 · Robert W Baird & Co Inc #8 · Goldman Sachs & Co #9 · Lincoln International #10 · JP Morgan #11 · Moelis & Co #11 · Benchmark International #13 · Evercore Inc #14 · BofA Securities Inc #15 · Morgan Stanley #15 · KeyBanc Capital Markets Inc #17 · Duff & Phelps,A Kroll Business #18 · Lazard #19 · Chartwell Financial Advisory #20 · Guggenheim Securities LLC #21 · Harris Williams & Co #21 · Canaccord Genuity Grp Inc #23 · Oaklins #23 · Perella Weinberg Partners LP #23
LSEG US Target Mid-Market (MM2) FY2023 (US target, financial advisors, by # of deals) 24 firms
LSEG Deals Intelligence league table 'United States Target Mid-Market (MM2)', financial advisors ranked by number of deals, announced deals 2023; mid-market = up to US$500m incl. undisclosed-value deals; advisors receive full credit per deal. Top 25 as printed. Source, checked 2026-09-13 — “Global mid-market M&A deals would include transactions valued up to US$500 million (including undisclosed value deals).”
Houlihan Lokey #1 · Generational Equity #2 · Piper Sandler & Co #3 · Jefferies LLC #4 · Raymond James Financial Inc #5 · Lincoln International #6 · William Blair & Co #7 · Benchmark International #8 · JP Morgan #8 · Goldman Sachs & Co #10 · Robert W Baird & Co Inc #11 · Stifel/KBW #12 · Evercore Partners #13 · Lazard #14 · Moelis & Co #15 · Canaccord Genuity Grp Inc #16 · Stout #17 · Oaklins #18 · BofA Securities Inc #19 · Morgan Stanley #20 · KeyBanc Capital Markets Inc #21 · Harris Williams & Co #22 · UBS #22 · IMAP #24
LSEG US Target Small-Cap (MM2a) FY2025 (US target, financial advisors, by # of deals) 23 firms
LSEG Deals Intelligence league table 'United States Target Small-Cap (MM2a)', financial advisors ranked by number of deals, announced deals 2025; small-cap = up to US$50m incl. undisclosed-value deals (large banks appear because undisclosed-value deals count). As printed. Source, checked 2026-09-13 — “Global Small-Cap M&A deals would include transactions valued up to US$50 million (including undisclosed value deals).”
Houlihan Lokey #1 · Generational Equity #2 · Jefferies LLC #3 · Lincoln International #4 · Piper Sandler & Co #5 · Raymond James Financial Inc #6 · William Blair & Co #7 · Benchmark International #8 · JP Morgan #9 · Robert W Baird & Co Inc #10 · Goldman Sachs & Co #11 · Stifel/KBW #12 · Moelis & Co #13 · Evercore Inc #14 · Harris Williams & Co #15 · Guggenheim Securities LLC #16 · Lazard #16 · Morgan Stanley #16 · Oaklins #19 · Canaccord Genuity Grp Inc #20 · KeyBanc Capital Markets Inc #20 · Stout #22 · Citi #23
LSEG US Target Small-Cap (MM2a) FY2024 (US target, financial advisors, by # of deals) 25 firms
LSEG Deals Intelligence league table 'United States Target Small-Cap (MM2a)', financial advisors ranked by number of deals, announced deals 2024; small-cap = up to US$50m incl. undisclosed-value deals (large banks appear because undisclosed-value deals count). As printed. Source, checked 2026-09-13 — “Global Small-Cap M&A deals would include transactions valued up to US$50 million (including undisclosed value deals).”
Houlihan Lokey #1 · Generational Equity #2 · William Blair & Co #3 · Jefferies LLC #4 · Robert W Baird & Co Inc #5 · Piper Sandler & Co #6 · Benchmark International #7 · Lincoln International #8 · Stifel/KBW #8 · Raymond James Financial Inc #10 · Goldman Sachs & Co #11 · Moelis & Co #12 · Evercore Inc #13 · JP Morgan #14 · KeyBanc Capital Markets Inc #15 · Duff & Phelps,A Kroll Business #16 · Chartwell Financial Advisory #17 · Harris Williams & Co #18 · BofA Securities Inc #19 · Oaklins #20 · Guggenheim Securities LLC #21 · Lazard #22 · Morgan Stanley #22 · Canaccord Genuity Grp Inc #24 · Translink Corporate Finance #25
LSEG Any U.S. Involvement Announced M&A (AD41) FY2025 (financial advisors, by value) 25 firms
LSEG Deals Intelligence 'Any U.S. Involvement Announced AD41' league table, financial advisors ranked by rank value (US$m) of announced deals 2025; all deal sizes. Top 25 as printed. No category definition sentence in the report. Source, checked 2026-09-13
Goldman Sachs & Co #1 · JP Morgan #2 · Morgan Stanley #3 · BofA Securities Inc #4 · Citi #5 · Evercore Inc #6 · Wells Fargo & Co #7 · Centerview Partners LLC #8 · Barclays #9 · Jefferies LLC #10 · Moelis & Co #11 · UBS #12 · Allen & Co Inc #13 · Lazard #14 · RBC Capital Markets #15 · PJT Partners Inc #16 · Deutsche Bank #17 · M Klein & Co LLC #18 · RedBird BD LLC #18 · Mizuho Financial Group #20 · Guggenheim Securities LLC #21 · BMO Capital Markets #22 · Rothschild & Co #23 · TD Securities Inc #24 · Perella Weinberg Partners LP #25
LSEG Any U.S. Involvement Announced M&A (AD41) FY2024 (financial advisors, by value) 25 firms
LSEG Deals Intelligence 'Any U.S. Involvement Announced AD41' league table, financial advisors ranked by rank value (US$m) of announced deals 2024; all deal sizes. Top 25 as printed. No category definition sentence in the report. Source, checked 2026-09-13
Goldman Sachs & Co #1 · Morgan Stanley #2 · JP Morgan #3 · Citi #4 · BofA Securities Inc #5 · Evercore Inc #6 · Centerview Partners LLC #7 · Barclays #8 · RBC Capital Markets #9 · Lazard #10 · PJT Partners Inc #11 · Wells Fargo & Co #12 · UBS #13 · Jefferies LLC #14 · Deutsche Bank #15 · Moelis & Co #16 · BNP Paribas SA #17 · Perella Weinberg Partners LP #18 · Qatalyst Partners #19 · Rothschild & Co #20 · Houlihan Lokey #21 · Ernst & Young LLP #22 · TD Securities Inc #23 · Mizuho Financial Group #24 · BDT & MSD Partners LLC #25
Axial Top 25 Lower Middle Market Investment Banks 2024 25 firms
Axial league table (Axial.net marketplace data only): ranking 'primarily driven by four factors: Client quality ... Buyside targeting ... M&A process effectiveness ... Deal outcome (IOI, LOI, and closure rates)'. Reviewed 400+ firms that 'met the qualifications'. Reflects activity on Axial's platform, not the whole market. Published 2025-01-23. Source, checked 2026-09-13
Peakstone Group #1 · Founder M&A #2 · Ad Astra Equity Advisors #3 · Hill View Partners #4 · FOCUS Investment Banking #5 · Vertess Healthcare Advisors, LLC #6 · Meritage Partners, Inc. #7 · Solganick & Co. #8 · TREP Advisors #9 · Protegrity Advisors #10 · Cornhusker Capital #11 · Vesticor Advisors #12 · Madison Street Capital #13 · ACT Capital Advisors #14 · Venture North Group #15 · SDR Ventures #16 · Premara Group #17 · American HealthCare Capital #18 · New Direction Partners #19 · Sun Mergers & Acquisitions #20 · Vercor #21 · Confederation M&A #22 · The Bloom Organization, LLC #23 · True North M&A #24 · Corum Group #25
Axial Top 25 Lower Middle Market Investment Banks 2025 25 firms
Axial league table (Axial.net marketplace data only): ranking 'primarily driven by four factors: Client quality ... Buyside targeting ... M&A process effectiveness ... Deal outcome (IOI, LOI, and closure rates)'. Reviewed 800+ firms that 'met the qualifications'. Reflects activity on Axial's platform, not the whole market. Published 2026-01-20. Source, checked 2026-09-13
Tower Partners #1 · Madison Street Capital #2 · FOCUS Investment Banking #3 · Founder M&A #4 · The Advisory #5 · Peakstone Group #6 · MidCap Advisors #7 · Ad Astra Equity Advisors #8 · ACT Capital Advisors #9 · Hill View Partners #10 · ASA Ventures Group #11 · Protegrity Advisors #12 · Cornerstone Business Services, Inc. #13 · Good Hope Advisors #14 · Exit Partners #15 · IBG / Fox & Fin #16 · Business Acquisition & Merger Associates #17 · The Bloom Organization #18 · Embarc Advisors #19 · FourBridges Capital Advisors #20 · Venture North Group · TREP Advisors #22 · Vesticor Advisers #23 · Meritage Partners, Inc. #24 · Solganick & Co. #25
Business broker professional body: IBBA 1 firms
Self-description of the professional association (formed 1984); awards the Certified Business Intermediary (CBI) designation. Individual brokers intentionally not listed. Source, checked 2026-09-13 — “The International Business Brokers Association® (IBBA) is the largest international non-profit association operating exclusively for people and firms engaged in Business Brokerage.”
International Business Brokers Association (IBBA)
Lower-middle-market intermediary professional body: M&A Source 1 firms
Self-description on IBBA site; 'The IBBA® and the M&A Source are Specialty Sections of the International Association of Business Intermediaries, Inc. (IABI)'. Credential: M&AMI. Individual members intentionally not listed. Source, checked 2026-09-13 — “Established in 1991, the M&A Source provides support for business intermediaries who expand into lower middle market merger and acquisition transactions.”
M&A Source
Largest law firms by revenue (Am Law Global 200 2025, US-headquartered subset) 80 firms
Wikipedia table reproducing The American Lawyer 'The 2025 Global 200 Ranked by Revenue' (Law.com, 2025-09-18); ranked by gross revenue. Filtered here to rows whose 'country with the most lawyers' includes the US; original global rank kept. Law.com original is paywalled. Source, checked 2026-09-13 — “This is a list of the world's largest law firms based on the AmLaw Global 200 Rankings, as of 2025.”
Kirkland & Ellis #1 · Latham & Watkins #2 · DLA Piper (verein) #3 · Skadden, Arps, Slate, Meagher & Flom #5 · Gibson Dunn #6 · Sidley Austin #7 · Ropes & Gray #8 · Baker McKenzie (verein) #9 · White & Case #10 · Morgan, Lewis & Bockius #11 · Hogan Lovells #15 · Simpson Thacher & Bartlett #16 · Jones Day #17 · Dentons (verein) #18 · Goodwin Procter #19 · Paul, Weiss, Rifkind, Wharton & Garrison #20 · Greenberg Traurig #21 · Davis Polk & Wardwell #22 · Quinn Emanuel Urquhart & Sullivan #23 · King & Spalding #25 · Paul Hastings #27 · McDermott, Will & Schulte #28 · Cooley #29 · Sullivan & Cromwell #30 · Holland & Knight #31 · Weil, Gotshal & Manges #32 · Mayer Brown #33 · Milbank #34 · Willkie Farr & Gallagher #35 · Covington & Burling #36 · Cleary Gottlieb Steen & Hamilton #38 · Debevoise & Plimpton #40 · Wilmer Cutler Pickering Hale and Dorr #41 · Orrick, Herrington & Sutcliffe #42 · Dechert #43 · Reed Smith #44 · Akin Gump Strauss Hauer & Feld #45 · Wilson, Sonsini, Goodrich & Rosati #46 · Morrison & Foerster #47 · Proskauer Rose #49 · Squire Patton Boggs (verein) #50 · Alston & Bird #51 · K&L Gates #52 · Foley & Lardner #54 · Winston & Strawn #55 · Perkins Coie #56 · Sheppard, Mullin, Richter & Hampton #58 · Cravath, Swaine & Moore #59 · Wachtell, Lipton, Rosen & Katz #60 · Arnold & Porter #61 · Troutman Pepper Locke #62 · Fried, Frank, Harris, Shriver & Jacobson #63 · McGuireWoods #64 · O’Melveny & Myers #67 · Faegre Drinker #68 · BakerHostetler #69 · Vinson & Elkins #70 · Polsinelli #71 · Nelson Mullins Riley & Scarborough #72 · Seyfarth Shaw #73 · Fragomen, Del Rey, Bernsen & Loewy #74 · Hunton Andrews Kurth #75 · Katten Muchin Rosenman #78 · Bryan Cave Leighton Paisner #79 · Venable #80 · Baker Botts #81 · Pillsbury Winthrop Shaw Pittman #82 · Fenwick & West #83 · Fox Rothschild #85 · Gordon Rees Scully Mansukhani #86 · Lewis Brisbois Bisgaard & Smith #87 · Barnes & Thornburg #89 · Blank Rome #90 · Littler Mendelson #92 · Ogletree, Deakins, Nash, Smoak & Stewart #93 · Cozen O'Connor #95 · Husch Blackwell #96 · Taft Stettinius & Hollister #98 · Mintz, Levin, Cohn, Ferris, Glovsky, and Popeo #99 · Jackson Lewis #100
Am Law 100 2026 - top by gross revenue (publicly reported subset) 11 firms
The American Lawyer 'The 2026 Am Law 100: Ranked by Gross Revenue' (FY2025, published April 2026), as summarized by ABA Journal 2026-04-15. Only explicitly stated positions recorded; full Law.com table is paywalled. Source, checked 2026-09-13 — “Law.com, which publishes the rankings of the 100 largest firms in the United States each spring.”
Kirkland & Ellis · Latham & Watkins · DLA Piper · Gibson, Dunn & Crutcher #4 · Skadden, Arps, Slate, Meagher & Flom #5 · Sidley Austin · Ropes & Gray · Baker McKenzie · White & Case · Simpson Thacher & Bartlett · Morgan, Lewis & Bockius #11
LSEG US Target Announced M&A (AE2) FY2025 - legal advisors by # of deals 25 firms
LSEG 'US Target Announced AE2 - Based on Number of Deals' legal advisor league table, announced deals 2025, all deal sizes. Top 25 as printed. Advisors receive full credit for each deal advised. Source, checked 2026-09-13
Goodwin Procter LLP #1 · Kirkland & Ellis #2 · Latham & Watkins #3 · Cooley LLP #4 · Holland & Knight LLP #5 · DLA Piper LLP #6 · Wilson Sonsini Goodrich & Rosati #7 · Orrick Herrington & Sutcliffe LLP #8 · Sidley Austin LLP #8 · Gibson Dunn & Crutcher #10 · Ropes & Gray #11 · Paul, Weiss #12 · Willkie Farr & Gallagher #13 · Simpson Thacher & Bartlett #14 · Skadden #15 · Troutman Pepper Locke LLP #16 · Jones Day #17 · Morgan Lewis & Bockius #17 · McDermott Will & Emery #19 · Sullivan & Cromwell #20 · Pillsbury Winthrop Shaw Pitt LLP #21 · Fenwick & West LLP #22 · Paul Hastings LLP #23 · McGuireWoods LLP #24 · Weil Gotshal & Manges #25
LSEG US Target Announced M&A (AE2) FY2025 - legal advisors by value 25 firms
LSEG 'US Target Announced AE2' legal advisor league table, ranked by rank value (US$m) of announced deals 2025, all deal sizes. Top 25 as printed. Advisors receive full credit for each deal advised. Source, checked 2026-09-13
Kirkland & Ellis #1 · Wachtell Lipton Rosen & Katz #2 · Latham & Watkins #3 · Skadden #4 · Cravath, Swaine & Moore #5 · Sullivan & Cromwell #6 · Cleary Gottlieb Steen & Hamilton #7 · Simpson Thacher & Bartlett #8 · Paul, Weiss #9 · Gibson Dunn & Crutcher #10 · Sidley Austin LLP #11 · Freshfields #12 · Debevoise & Plimpton #13 · Fangda Partners #14 · White & Case LLP #15 · Davis Polk & Wardwell #16 · Jones Day #17 · Covington & Burling #18 · Fried Frank Harris Shriver & Jacobson #19 · Goodwin Procter LLP #20 · Ropes & Gray #21 · Clifford Chance #22 · Alston & Bird #23 · Morrison & Foerster #24 · Cooley LLP #25
LSEG US Target Announced M&A (AE2) FY2024 - legal advisors by # of deals 25 firms
LSEG 'US Target Announced AE2 - Based on Number of Deals' legal advisor league table, announced deals 2024, all deal sizes. Top 25 as printed. Advisors receive full credit for each deal advised. Source, checked 2026-09-13
Goodwin Procter LLP #1 · Kirkland & Ellis #2 · Holland & Knight LLP #3 · Latham & Watkins #4 · Wilson Sonsini Goodrich & Rosati #5 · DLA Piper LLP #6 · Cooley LLP #7 · Gibson Dunn & Crutcher #8 · McGuireWoods LLP #9 · Sidley Austin LLP #10 · Fenwick & West LLP #11 · Ropes & Gray #12 · McDermott Will & Emery #13 · Paul, Weiss #14 · Jones Day #15 · Simpson Thacher & Bartlett #15 · Skadden #17 · Morgan Lewis & Bockius #18 · Willkie Farr & Gallagher #19 · Sullivan & Cromwell #20 · Davis Polk & Wardwell #21 · Weil Gotshal & Manges #21 · K&L Gates #23 · Alston & Bird #24 · Troutman Pepper Hamilton Sanders LLP #25
LSEG US Target Announced M&A (AE2) FY2024 - legal advisors by value 25 firms
LSEG 'US Target Announced AE2' legal advisor league table, ranked by rank value (US$m) of announced deals 2024, all deal sizes. Top 25 as printed. Advisors receive full credit for each deal advised. Source, checked 2026-09-13
Skadden #1 · Kirkland & Ellis #2 · Latham & Watkins #3 · Sullivan & Cromwell #4 · Paul, Weiss #5 · Gibson Dunn & Crutcher #6 · Wachtell Lipton Rosen & Katz #7 · Davis Polk & Wardwell #8 · Simpson Thacher & Bartlett #9 · Cravath, Swaine & Moore #10 · Goodwin Procter LLP #11 · Cleary Gottlieb Steen & Hamilton #12 · Freshfields Bruckhaus Deringer #13 · White & Case LLP #14 · Debevoise & Plimpton #15 · Ropes & Gray #16 · Fried Frank Harris Shriver & Jacobson #17 · DLA Piper LLP #18 · Alston & Bird #19 · Sidley Austin LLP #20 · Vinson & Elkins LLP #21 · Wilson Sonsini Goodrich & Rosati #22 · Weil Gotshal & Manges #23 · Paul Hastings LLP #24 · Morrison & Foerster #25
LSEG US Target Mid-Market (MML2) FY2025 - legal advisors by # of deals 25 firms
LSEG 'United States Target Mid-Market (MML2)' legal advisor league table ranked by number of deals, announced deals 2025; mid-market = up to US$500m incl. undisclosed-value deals. Top 25 as printed. Source, checked 2026-09-13 — “Global mid-market M&A deals would include transactions valued up to US$500 million (including undisclosed value deals).”
Goodwin Procter LLP #1 · Kirkland & Ellis #2 · Cooley LLP #3 · Holland & Knight LLP #4 · Latham & Watkins #5 · DLA Piper LLP #6 · Wilson Sonsini Goodrich & Rosati #7 · Orrick Herrington & Sutcliffe LLP #8 · Sidley Austin LLP #9 · Gibson Dunn & Crutcher #10 · Ropes & Gray #11 · Troutman Pepper Locke LLP #12 · Willkie Farr & Gallagher #13 · McDermott Will & Emery #14 · Morgan Lewis & Bockius #15 · Paul Hastings LLP #16 · Paul, Weiss #17 · Pillsbury Winthrop Shaw Pitt LLP #18 · Fenwick & West LLP #19 · Jones Day #19 · McGuireWoods LLP #21 · Simpson Thacher & Bartlett #22 · Bass Berry & Sims PLC #23 · K&L Gates #24 · Alston & Bird #25
LSEG US Target Mid-Market (MML2) FY2024 - legal advisors by # of deals 25 firms
LSEG 'United States Target Mid-Market (MML2)' legal advisor league table ranked by number of deals, announced deals 2024; mid-market = up to US$500m incl. undisclosed-value deals. Top 25 as printed. Source, checked 2026-09-13 — “Global mid-market M&A deals would include transactions valued up to US$500 million (including undisclosed value deals).”
Goodwin Procter LLP #1 · Kirkland & Ellis #2 · Holland & Knight LLP #3 · DLA Piper LLP #4 · Wilson Sonsini Goodrich & Rosati #5 · Latham & Watkins #6 · Cooley LLP #7 · McGuireWoods LLP #8 · Gibson Dunn & Crutcher #9 · Fenwick & West LLP #10 · Sidley Austin LLP #11 · McDermott Will & Emery #12 · Ropes & Gray #13 · Jones Day #14 · Morgan Lewis & Bockius #15 · Paul Hastings LLP #16 · K&L Gates #17 · Paul, Weiss #18 · Willkie Farr & Gallagher #19 · Simpson Thacher & Bartlett #20 · Weil Gotshal & Manges #20 · Troutman Pepper Hamilton Sanders LLP #22 · Alston & Bird #23 · Mayer Brown LLP #24 · O'Melveny & Myers #25
Big Four 4 firms
Wikipedia: grouped 'because of their large sizes relative to their competitors, both in terms of revenue and workforce headcount'. Networks, not the US member firms; for US legal entities see the PCAOB category. Source, checked 2026-09-13 — “The Big Four are the four largest professional services networks in the world: Deloitte, EY, KPMG, and PwC.”
Deloitte · EY · KPMG · PwC
PCAOB U.S. Global Network Firms (six largest U.S. annual firms) 6 firms
PCAOB (US audit regulator) groups these six for inspection-data reporting (2025 results page). 'Annual' firms have more than 100 issuer audit clients and are inspected every year. Official legal names as given by PCAOB. Source, checked 2026-09-13 — “inspection reports on the six largest U.S. annual firms”
Deloitte & Touche LLP · Ernst & Young LLP · KPMG LLP · PricewaterhouseCoopers LLP · BDO USA, P.C. · Grant Thornton LLP
PCAOB Non-Affiliate Annual Firms (U.S. annual firms other than the six largest) 8 firms
PCAOB 2024 inspection-results page: US firms with more than 100 issuer audit clients (inspected annually) outside the six global network firms; PCAOB notes three were not inspected in some years due to client-count fluctuation. Official legal names as given by PCAOB. Source, checked 2026-09-13 — “U.S. annual firms other than the six largest firms”
Marcum LLP · RSM US LLP · Crowe LLP · WithumSmith+Brown, PC · Forvis Mazars, LLP · Moss Adams LLP · Baker Tilly US, LLP · Cohen & Company, Ltd.
IPA 100 (2026) - largest U.S. CPA firms by net revenue 100 firms
INSIDE Public Accounting 2026 IPA 500, Top 100 tab; 'Firms are ranked by net revenue using self-reported data submitted through the IPA Practice Management Survey.' Source uses rank bands (IPA 100/200/300/400/500), not national/regional labels. Firm name as printed (HQ split out). Source, checked 2026-09-13 — “The IPA 500 is an annual ranking of the top 500 CPA firms in the United States based on net revenue, published by INSIDE Public Accounting.”
Deloitte #1 · PwC #2 · Ernst & Young LLP #3 · KPMG #4 · RSM US LLP #5 · Baker Tilly #6 · BDO USA #7 · CBIZ & CBIZ CPAs PC #8 · Grant Thornton #9 · Forvis Mazars LLP #10 · CLA #11 · Crowe LLP #12 · Plante Moran #13 · Eisner Advisory Group LLC #14 · CohnReznick Advisory LLC #15 · Citrin Cooperman #16 · Andersen #17 · Eide Bailly LLP #18 · Cherry Bekaert #19 · WithumSmith+Brown PC #20 · Armanino Advisory LLC #21 · Aprio Advisory Group LLC #22 · Wipfli LLP #23 · Carr Riggs & Ingram #24 · Sikich #25 · PKF O’Connor Davies #26 · UHY #27 · Weaver #28 · Holthouse Carlin & Van Trigt LLP #29 · Kearney & Company PC #30 · RubinBrown LLP #31 · BPM LLP #32 · Novogradac & Company LLP #33 · Whitley Penn #34 · LBMC PC #35 · Doeren Mayhew #36 · Frank Rimerman + Co. LLP #37 · Rehmann LLC #38 · Cohen & Co #39 · Katz Sapper & Miller #40 · Elliott Davis #41 · BerryDunn #42 · Frazier & Deeter Advisory LLC #43 · Schellman #44 · Bonadio & Co. LLP #45 · Sorren #46 · Richey May Advisory LLC #47 · Hill Barth & King LLC #48 · Warren Averett #49 · Kaufman Rossin #50 · Miller Cooper & Co. Ltd. #51 · Grassi Advisory Group Inc. #52 · Anchin Block & Anchin LLP #53 · Mauldin & Jenkins LLC #54 · Pinion LLC #55 · Springline Advisory #56 · Blue & Co. LLC #57 · RKL LLP #58 · Sax LLP #59 · Schneider Downs & Co. Inc. #60 · Prager Metis #61 · SC&H #62 · Bennett Thrasher LLP #63 · Smith + Howard #64 · SingerLewak LLP #65 · Dean Dorton Allen Ford PLLC #66 · H&CO #67 · Clark Schaefer Hackett & Co. #68 · Wolf & Company PC #69 · Aldrich #70 · Lutz #71 · Archer Lewis #72 · Brown Edwards & Company LLP #73 · Anders #74 · PBMares LLP #75 · Sensiba LLP #76 · Rea #77 · HoganTaylor LLP #78 · HHM CPAs #79 · Cain Watters & Associates LLC #80 · KLR #81 · BMSS LLC #82 · PYA #83 · Gursey Schneider LLP #84 · Brady Martz #85 · Clark Nuber PS #86 · GBQ Partners LLC #87 · Miller Kaplan #88 · Nichols Cauley #89 · Prosperity Partners #90 · AAFCPAs Inc. #91 · Wiss & Company LLP #92 · Boulay PLLP #93 · Haynie & Company #94 · GHJ #95 · Baker Newman Noyes #96 · REDW LLC #97 · Kemper CPA Group LLP #98 · YHB | CPAs & Consultants #99 · Global Tax Management Inc. #100