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RESEARCH · Published May 27, 2026 · Updated October 31, 2026

M&A Lawyers Index 2.0: Latham and Skadden Lead AI Answers

Published May 27, 2026 · Updated October 31, 2026

Latham & Watkins was the firm or lawyer that ChatGPT, Claude, Gemini and Perplexity named most often. Latham & Watkins appeared in 241 of 288 answers (83.7%) measured on October 28, 2026. Skadden came next at 218 of 288 (75.7%). The two confidence intervals overlap, so the data cannot confirm that Latham & Watkins is ahead. Latham & Watkins was named first more often than any other firm or lawyer, in 92 of 288 answers. Google AI Overviews appeared on 65 of 65 searches (100%).

288

AI answers analyzed across ChatGPT, Claude, Gemini and Perplexity

83.7%

of answers named Latham & Watkins, the most-named (241 of 288)

13

tracked firms and lawyers named at least once (of 13)

100%

of Google searches showed an AI Overview (65 of 65)

Version 2. This version replaces the first version of this study, first published May 27, 2026. It uses measured counts, so the two versions are not comparable. Version 2 asks 24 questions three times each on ChatGPT, Claude, Gemini and Perplexity (288 answers) and adds Google AI Overviews. Every rate comes with its count and a 95% interval.

What the data shows

01

241/288 (83.7%)

Latham & Watkins appeared in 241 of 288 four-engine answers (CI 79–87.5%). Skadden appeared in 218 of 288 (75.7%, CI 70.4–80.3%). The intervals overlap, so the two cannot be separated.
02

92/288 (31.9%)

Latham & Watkins was the first firm or lawyer named in 92 of 288 answers, more than any other tracked firm or lawyer. Average first position: 2.6.
03

65/72 (90.3%)

Claude named Kirkland & Ellis in 65 of 72 answers. The other engines did so in 24 to 51 of 72.
04

36/72 (50%)

Claude named Davis Polk in 36 of 72 answers. The other engines did so in 15 to 24 of 72.
05

120/288 (41.7%)

Latham & Watkins's own domains were cited in 120 of 288 grounded answers, more than any other tracked firm or lawyer. Skadden followed at 84 of 288. Every tracked firm and lawyer had at least one.
06

65/65 (100%)

Google AI Overviews appeared on 65 of 65 searches (CI 94.4–100%).
07

41/65 (63.1%)

Latham & Watkins was the firm or lawyer named most often in AI Overviews, at 41 of 65, followed by Kirkland & Ellis at 34 of 65 (52.3%). In the four-engine set, Latham & Watkins was named in 241 of 288 answers (83.7%).
08

104/288 (36.1%)

chambers.com was cited in 104 of 288 grounded four-engine answers, with 156 of 2,564 citations (6.1%). lw.com came second with 155 citations in 120 answers (41.7%).

Appearance rate across 288 four-engine answers. The bar is the 95% confidence interval; overlapping bars cannot be told apart at this sample size.

Which firms and lawyers AI engines name

Latham & Watkins
83.7%
Skadden
75.7%
Kirkland & Ellis
60.8%
Wachtell Lipton Rosen & Katz
51.4%
Sullivan & Cromwell
47.2%
Paul Weiss
44.8%
Simpson Thacher
41.7%
Davis Polk
33.3%
Cravath Swaine & Moore
30.2%
Sidley Austin
26.4%
Faiza Saeed
2.4%
Martin Lipton
2.4%
H. Rodgin Cohen
0.3%
#NameNamed inAppearance rate95% interval
1Latham & Watkins241/28883.7%79.0–87.5%
2Skadden218/28875.7%70.4–80.3%
3Kirkland & Ellis175/28860.8%55.0–66.2%
4Wachtell Lipton Rosen & Katz148/28851.4%45.6–57.1%
5Sullivan & Cromwell136/28847.2%41.5–53.0%
6Paul Weiss129/28844.8%39.2–50.6%
7Simpson Thacher120/28841.7%36.1–47.4%
8Davis Polk96/28833.3%28.1–39.0%
9Cravath Swaine & Moore87/28830.2%25.2–35.7%
10Sidley Austin76/28826.4%21.6–31.8%
11Faiza Saeed7/2882.4%1.2–4.9%
12Martin Lipton7/2882.4%1.2–4.9%
13H. Rodgin Cohen1/2880.3%0.1–1.9%

The full list

Own-domain citation is the share of 288 grounded answers that cited the entity's own domains (subdomains included). Citation share is of all 2,564 citations.

#Firm or lawyerNamed inAppearance rate95% intervalFirst mentionOwn-domain citationCitation share
1Latham & Watkins241/28883.7%79–87.5%2.641.7% (120/288)6%
2Skadden218/28875.7%70.4–80.3%3.429.2% (84/288)4.7%
3Kirkland & Ellis175/28860.8%55–66.2%2.912.5% (36/288)1.4%
4Wachtell Lipton Rosen & Katz148/28851.4%45.6–57.1%3.68.3% (24/288)1%
5Sullivan & Cromwell136/28847.2%41.5–53%4.410.1% (29/288)1.2%
6Paul Weiss129/28844.8%39.2–50.6%4.914.2% (41/288)1.6%
7Simpson Thacher120/28841.7%36.1–47.4%5.28% (23/288)0.9%
8Davis Polk96/28833.3%28.1–39%5.15.2% (15/288)0.6%
9Cravath Swaine & Moore87/28830.2%25.2–35.7%4.55.6% (16/288)0.7%
10Sidley Austin76/28826.4%21.6–31.8%3.616.3% (47/288)2.1%
11Faiza Saeed7/2882.4%1.2–4.9%2.65.6% (16/288)0.7%
12Martin Lipton7/2882.4%1.2–4.9%28.3% (24/288)1%
13H. Rodgin Cohen1/2880.3%0.1–1.9%310.1% (29/288)1.2%

The top eight, side by side

#NameAppearance rateAnswers and intervalOther measures
1Latham & Watkins83.7%241/288 answers · 95% CI 79–87.5%first-mention position: 2.6; owned-domain citation (120/288): 41.7%; citation share: 6%
2Skadden75.7%218/288 answers · 95% CI 70.4–80.3%first-mention position: 3.4; owned-domain citation (84/288): 29.2%; citation share: 4.7%
3Kirkland & Ellis60.8%175/288 answers · 95% CI 55–66.2%first-mention position: 2.9; owned-domain citation (36/288): 12.5%; citation share: 1.4%
4Wachtell Lipton Rosen & Katz51.4%148/288 answers · 95% CI 45.6–57.1%first-mention position: 3.6; owned-domain citation (24/288): 8.3%; citation share: 1%
5Sullivan & Cromwell47.2%136/288 answers · 95% CI 41.5–53%first-mention position: 4.4; owned-domain citation (29/288): 10.1%; citation share: 1.2%
6Paul Weiss44.8%129/288 answers · 95% CI 39.2–50.6%first-mention position: 4.9; owned-domain citation (41/288): 14.2%; citation share: 1.6%
7Simpson Thacher41.7%120/288 answers · 95% CI 36.1–47.4%first-mention position: 5.2; owned-domain citation (23/288): 8%; citation share: 0.9%
8Davis Polk33.3%96/288 answers · 95% CI 28.1–39%first-mention position: 5.1; owned-domain citation (15/288): 5.2%; citation share: 0.6%

Claude named Kirkland & Ellis in 65 of 72 answers. The other engines did so in 24 to 51 of 72. Claude named Davis Polk in 36 of 72 answers. The other engines did so in 15 to 24 of 72.

ChatGPT

72 asked · 72 returned · 72 grounded

Same questions, different answers

Skadden
84.7%
Latham & Watkins
83.3%
Sullivan & Cromwell
61.1%
Wachtell Lipton Rosen & Katz
51.4%
Kirkland & Ellis
48.6%
Simpson Thacher
48.6%

Claude

72 asked · 72 returned · 72 grounded

Latham & Watkins
97.2%
Kirkland & Ellis
90.3%
Skadden
88.9%
Wachtell Lipton Rosen & Katz
68.1%
Sullivan & Cromwell
61.1%
Paul Weiss
61.1%

Gemini

72 asked · 72 returned · 72 grounded

Latham & Watkins
86.1%
Skadden
76.4%
Kirkland & Ellis
70.8%
Wachtell Lipton Rosen & Katz
54.2%
Paul Weiss
48.6%
Sullivan & Cromwell
45.8%

Perplexity

72 asked · 72 returned · 72 grounded

Latham & Watkins
68.1%
Skadden
52.8%
Paul Weiss
36.1%
Kirkland & Ellis
33.3%
Wachtell Lipton Rosen & Katz
31.9%
Simpson Thacher
25.0%

Google AI Overviews were captured through 65 U.S. desktop searches and scored only where an overview appeared, so five-engine figures use 288 + 65 = 353 answers.

The fifth engine

100%

Trigger rate: 65 of 65 searches

Google AI Overviews appeared on 65 of 65 searches (100%, CI 94.4–100%). The other 0 searches showed no overview. Within the 65 overviews, Latham & Watkins was named in 41 (63.1%), Kirkland & Ellis was named in 34 (52.3%), Skadden was named in 31 (47.7%), Paul Weiss was named in 23 (35.4%). legal500.com was the most-cited source, with 18 citations and an appearance in 15 of 65 overviews.

Five-engine rankNameFive-engine rateFour-engine rank
1Latham & Watkins79.9%1
2Skadden70.5%2
3Kirkland & Ellis59.2%3
4Wachtell Lipton Rosen & Katz48.2%4
5Sullivan & Cromwell43.1%5
6Paul Weiss43.1%6
7Simpson Thacher38.2%7
8Davis Polk32.9%8
9Cravath Swaine & Moore30.3%9
10Sidley Austin24.9%10

Who each question surfaces first

Six questions from the set. Each tile uses that question's own four-engine answers as the denominator.

QuestionLeaderNextAI Overview
Q01 · 12 answersWachtell Lipton Rosen & Katz 100.0%Skadden 100.0%; Latham & Watkins 100.0%AI Overview shown on 3 of 3 searches
Q02 · 12 answersWachtell Lipton Rosen & Katz 100.0%Sullivan & Cromwell 100.0%; Latham & Watkins 91.7%AI Overview shown on 3 of 3 searches
Q03 · 12 answersSullivan & Cromwell 100.0%Skadden 75.0%; Simpson Thacher 75.0%AI Overview shown on 3 of 3 searches
Q04 · 12 answersSimpson Thacher 100.0%Kirkland & Ellis 100.0%; Paul Weiss 91.7%AI Overview shown on 3 of 3 searches
Q05 · 12 answersLatham & Watkins 66.7%Skadden 41.7%; Sullivan & Cromwell 25.0%AI Overview shown on 3 of 3 searches
Q06 · 12 answersWachtell Lipton Rosen & Katz 100.0%Skadden 100.0%; Simpson Thacher 100.0%AI Overview shown on 3 of 3 searches

The four engines produced 2,564 citations in total. chambers.com was cited most often, with 156 citations (6.1%) across 104 answers. Next came lw.com (155), skadden.com (120), legal500.com (109), leadersleague.com (75), privatebankerinternational.com (60).

Four AI engines · share of 288 grounded answers

Most-cited domains

lw.com
41.7%
chambers.com
36.1%
skadden.com
29.2%
legal500.com
27.4%
leadersleague.com
17.0%
sidley.com
16.3%
goodwinlaw.com
14.9%
paulweiss.com
14.2%
coyotewealth.com
13.2%
vault.com
13.2%

Google AI Overviews · share of 65 overviews

legal500.com
23.1%
cooley.com
10.8%
news.bloomberglaw.com
9.2%
paulhastings.com
9.2%
ballardspahr.com
6.2%
goodwinlaw.com
6.2%
kirkland.com
6.2%
vault.com
6.2%
businesschief.com
4.6%
chambers.com
4.6%

Citation share by source type

Share of all citations by the type of site cited. Source types were reclassified on October 29, 2026. 'Company / brand sites' now covers only the official sites of companies, brands and schools; publishers, directories, trade bodies and other sites have their own types, and sites that could not be placed are 'Other / unclassified'.

Source typeFour AI engines (of 2,564 citations)Google AI Overviews (of 183 citations)
Company / brand sites1,523 (59.4%)110 (60.1%)
Directories / rankings577 (22.5%)33 (18%)
Trade / specialist press209 (8.2%)18 (9.8%)
General news / business press63 (2.5%)5 (2.7%)
Review / comparison publishers52 (2%)2 (1.1%)
Research / data providers50 (2%)5 (2.7%)
Reference35 (1.4%)0 (0%)
Official / government32 (1.2%)0 (0%)
Community / social16 (0.6%)9 (4.9%)
Institutions / trade bodies5 (0.2%)1 (0.5%)
Other / unclassified2 (0.1%)0 (0%)

How can firms and lawyers improve their AI visibility?

These steps follow from the measured results above. They describe what the engines cited in this study and are not a guarantee of results.

StepWhat this study measured
Put your facts on your own domain.Latham & Watkins's own domains were cited in 41.7% of grounded answers, Skadden's in 29.2% and Sidley Austin's in 16.3%. H. Rodgin Cohen was named in only 0.3% of answers, yet its own domains were cited in 10.1%.
Keep your facts accurate on the sites engines cite.The most-cited sites other than the tracked names' own were chambers.com (in 36.1% of grounded answers), legal500.com (27.4%), leadersleague.com (17.0%), goodwinlaw.com (14.9%) and coyotewealth.com (13.2%). Directories and rankings supplied 22.5% of citations and trade and specialist press 8.2%.
Check each engine separately.Claude named Kirkland & Ellis in 90.3% of answers against 33.3% on Perplexity. ChatGPT named Sullivan & Cromwell in 61.1% of answers against 20.8% on Perplexity.
Do not ignore video and community sites.Community and social sites supplied 4.9% of Google AI Overview citations against 0.6% in the four chat engines. reddit.com was cited in 4.6% of overviews.
Watch names outside the tracked list.Goodwin Procter LLP (52), Gibson, Dunn & Crutcher LLP (48), Cooley LLP (31), Cleary Gottlieb Steen & Hamilton LLP (28), Debevoise & Plimpton LLP (26) were named often but were not tracked.
Re-run the same questions every month.Compare counts and intervals, not ranks. The 24 questions are in the appendix.

Frequently asked questions

Which firm or lawyer do AI engines name most often?

Latham & Watkins, named in 241 of 288 four-engine answers (83.7%, CI 79–87.5%). Skadden was second at 218 of 288 (75.7%). The intervals overlap, so the two cannot be separated statistically.

Which firm or lawyer is named first most often?

Latham & Watkins was the first firm or lawyer named in 92 of 288 answers, with an average first position of 2.6.

How often do Google AI Overviews appear for these questions?

An overview appeared on 65 of 65 searches (100%, CI 94.4–100%). Within those 65 overviews, Latham & Watkins was named most often, in 41 (63.1%).

Which sources do the engines cite?

Across 2,564 four-engine citations, chambers.com was cited most (156 citations, in 104 of 288 grounded answers), followed by lw.com (155 citations).

Do the four engines agree?

Only in part. Claude named Kirkland & Ellis in 65 of 72 answers, against 24 to 51 of 72 on the other engines. Claude named Davis Polk in 36 of 72 answers, against 15 to 24 of 72 on the other engines.

How this study was measured

24 questions × 3 runs each × 4 AI engines = 288 answers + 65 Google searches · 65 AI Overviews

24 questions, each asked 3 times on each engine, measured October 28, 2026. Market: United States, English. The destination site was not mentioned to any engine. Gemini answers were produced by gemini-3.6-flash; every Gemini answer in this report used that one model. All 72 Gemini answers had search sources. Entities count as named when they appear in the answer text; products and name variants roll up to the tracked name, and people are matched with middle names or initials, nicknames, possessives and suffixes. First-name variants (for example Jeffrey for Jeff, William for Bill) are matched, but only together with the tracked last name. Law firms are also counted by their common short name (for example Weil for Weil Gotshal, Akin for Akin Gump), matched case-sensitively as a whole word; short forms that could mean a tracked lawyer or a common name are not used.

EngineModel IDs calledAskedReturnedGrounded
ChatGPTgpt-5-mini727272
Claudeclaude-sonnet-5-5727272
Geminigemini-3.6-flash727272
Perplexitysonar-pro727272
Google AI OverviewsDataForSEO Google SERP (live, advanced)6565 shown65

Own-domain citations count a domain plus all its subdomains, with the same rule in every table.

Definitions

  • Appearance rate: answers naming the entity ÷ answers returned, with Wilson 95% intervals.
  • First mention: average order in which the entity first appears (1 = first).
  • Own-domain citation: grounded answers citing the entity's domains ÷ grounded answers.
  • Citation share: citations to the entity's domains ÷ all citations.

Limits

  • Measured on one day, October 28, 2026. Each engine answered 24 questions 3 times. Answers came from each engine's API (model IDs above); the consumer apps can answer differently.
  • Only 13 tracked firms and lawyers were scored. Untracked names that appeared often were not scored, including Goodwin Procter LLP (52), Gibson, Dunn & Crutcher LLP (48), Cooley LLP (31), Cleary Gottlieb Steen & Hamilton LLP (28), Debevoise & Plimpton LLP (26).
  • AI Overview figures are based on only 65 overviews, so estimates for individual firms and lawyers are less precise than the four-engine figures.
  • 7 Google searches could not be fetched by DataForSEO after three tries. They are excluded from the AI Overview figures, so the trigger rate uses 65 searches.
  • Reports describe what the engines said, attributed to the engines. They make no judgement about the people or organizations named and are not legal or financial advice.
  • Intervals treat each answer as independent, so they understate uncertainty for the 24 repeated questions.

Appendix: The 24 questions

Questions marked "Core question" are the original study questions, asked word for word. The others are added neutral questions.

#QuestionGroupSource
01Best M&A law firms for a $5 billion strategic acquisition.M&A and Corporate LawyersCore question
02Which law firms are best at defending against a hostile takeover?M&A and Corporate LawyersCore question
03Which law firms advise on bank mergers?M&A and Corporate LawyersCore question
04Which law firms are best for private equity acquisitions?M&A and Corporate LawyersCore question
05What law firm should a founder hire to sell a startup?M&A and Corporate LawyersCore question
06Which law firms lead in public company M&A?M&A and Corporate LawyersCore question
07Who are the most prominent M&A lawyers in the US?M&A and Corporate LawyersCore question
08Which law firms handle cross-border acquisitions?M&A and Corporate LawyersCore question
09Which law firms advise companies facing activist investors?M&A and Corporate LawyersAdded question
10Which law firms advise on technology M&A?M&A and Corporate LawyersAdded question
11Which law firms advise on healthcare and pharmaceutical M&A?M&A and Corporate LawyersAdded question
12Which law firms advise board special committees?M&A and Corporate LawyersAdded question
13Which law firms advise on energy M&A?M&A and Corporate LawyersAdded question
14Which law firms handle SPAC transactions?M&A and Corporate LawyersAdded question
15Which law firms handle antitrust review of mergers?M&A and Corporate LawyersAdded question
16Which law firms advise on middle-market M&A?M&A and Corporate LawyersAdded question
17Which law firms advise on corporate spin-offs?M&A and Corporate LawyersAdded question
18Which law firms advise boards in proxy fights?M&A and Corporate LawyersAdded question
19Which law firms rank highest in M&A league tables?M&A and Corporate LawyersAdded question
20Which law firms advise on CFIUS reviews?M&A and Corporate LawyersAdded question
21Which law firms advise on media company mergers?M&A and Corporate LawyersAdded question
22Which law firms advise on take-private deals?M&A and Corporate LawyersAdded question
23Which law firms advise on sales of venture-backed companies?M&A and Corporate LawyersAdded question
24Which law firms advise on insurance M&A?M&A and Corporate LawyersAdded question

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