Company lists · Data refreshed September 2026

Top 25 Investment banking law firms based in the United States

Name: Investment banking law firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,943 companies tracked

RevenueBase identified 1,943 investment banking law firms headquartered in the United States as of September 2026 and tracks 92,278 professional contacts across them, including 47,461 with verified work emails. New York is the largest hub.

This list covers investment banking law firms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

1,943Companies

92,278Contacts tracked

47,461Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest investment banking law firms based in the United States

Ranked by team size

Top 25 of 1,943 investment banking law firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to investment banking law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kirkland & Ellis	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	5,001-10,000	8,449 contacts →
	Partial evidence “As one of the world’s leading law firms, we serve a broad range of clients with market-leading practices in private equity, M&A and other complex corporate transactions…” Source: RevenueBase Database · checked Sep 28, 2026
2	Jefferies	Strong evidence	New York City, NY, United StatesHQ checked Sep 28, 2026	5,001-10,000	7,353 contacts →
	Strong evidence “Jefferies is a leading global, full-service investment banking and capital markets firm that provides advisory, sales and trading, research and wealth and asset management…” Source: RevenueBase Database · checked Sep 28, 2026
3	Houlihan Lokey	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,576 contacts →
	Partial evidence “Houlihan Lokey, Inc.(NYSE:HLI) is a leading global investment bank recognized for delivering independent strategic and financial advice to corporations, financial sponsors, and…” Source: RevenueBase Database · checked Sep 28, 2026
4	Evercore	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,296 contacts →
	Strong evidence “Evercore (NYSE: EVR) is a premier global independent investment banking advisory firm.” Source: RevenueBase Database · checked Sep 28, 2026
5	Paul Hastings	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,045 contacts →
	Indirect evidence “With widely recognized elite teams in finance, mergers & acquisitions, private equity, restructuring and special situations, litigation, employment and real estate, Paul Hastings…” Source: RevenueBase Database · checked Sep 28, 2026
6	Morrison Foerster	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,667 contacts →
	Indirect evidence “Morrison Foerster transforms complexity into advantage.” Source: RevenueBase Database · checked Sep 28, 2026
7	William Blair	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,324 contacts →
	Strong evidence “William Blair is the premier global partnership with expertise in investment banking, investment management, private wealth management, institutional sales and trading, and equity…” Source: RevenueBase Database · checked Sep 28, 2026
8	Dechert LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,041 contacts →
	Partial evidence “Dechert is the law firm that helps business leaders lead.” Source: RevenueBase Database · checked Sep 28, 2026
9	Venable LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,790 contacts →
	Partial evidence “Committed to Your Success – As a law firm of more than 900 professionals, Venable delivers legal services globally in every area of regulatory compliance, government affairs…” Source: RevenueBase Database · checked Sep 28, 2026
10	Moelis & Company	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,742 contacts →
	Partial evidence “Moelis & Company (“Moelis”) is a leading global independent investment bank that provides innovative strategic advice and solutions to a diverse client base, including…” Source: RevenueBase Database · checked Sep 28, 2026
11	Ballard Spahr LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,682 contacts →
	Partial evidence “Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.” Source: RevenueBase Database · checked Sep 28, 2026
12	Milbank LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	1,640 contacts →
	Partial evidence “Milbank is a premier international law firm handling high-profile, complex cases and business transactions through 11 offices worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
13	Lincoln International	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,489 contacts →
	Strong evidence “Lincoln International, Inc.(NYSE: LCLN) is a trusted investment banking advisor to business owners and senior executives of leading private equity firms and their portfolio…” Source: RevenueBase Database · checked Sep 28, 2026
14	PJT Partners	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	1,420 contacts →
	Partial evidence “PJT Partners is a premier, global, advisory-focused investment bank that was built from the ground up to be different.” Source: RevenueBase Database · checked Sep 28, 2026
15	HJ Sims	Strong evidence	Fairfield, CT, United StatesHQ checked Sep 28, 2026	n/a	1,325 contacts →
	Strong evidence “Founded in 1935, HJ Sims offers wealth management, investment banking, trading, underwriting & institutional services.” Source: RevenueBase Database · checked Sep 28, 2026
16	Quintairos, Prieto, Wood & Boyer, P.A	Partial evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,068 contacts →
	Partial evidence “Over the past 25 years, QPWB is one of the fastest-growing law firms in the US.” Source: RevenueBase Database · checked Sep 28, 2026
17	Keybanc Capital Markets	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 28, 2026	501-1,000	1,023 contacts →
	Indirect evidence “We know that successful, long-term business relationships depend upon delivering results for our clients.” Source: RevenueBase Database · checked Sep 28, 2026
18	Canaccord Genuity	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	810 contacts →
	Strong evidence “Canaccord Genuity is the global capital markets division of Canaccord Genuity Group Inc, offering institutional and corporate clients idea-driven investment banking, merger and…” Source: RevenueBase Database · checked Sep 28, 2026
19	FBR	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	n/a	789 contacts →
	Indirect evidence “In June 2017, B.” Source: RevenueBase Database · checked Sep 28, 2026
20	Guggenheim Securities	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	699 contacts →
	Strong evidence “Guggenheim Securities is the investment banking and capital markets business of Guggenheim Partners, offering a full range of services including Advisory, Sales and Trading…” Source: RevenueBase Database · checked Sep 28, 2026
21	Centerview Partners	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	693 contacts →
	Strong evidence “Centerview Partners is a premier provider of independent investment-banking advisory services.” Source: RevenueBase Database · checked Sep 28, 2026
22	Kelley Drye & Warren LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	690 contacts →
	Partial evidence “Kelley Drye is an AmLaw 200 law firm of more than 350 lawyers and other professionals practicing in New York, NY; Washington, D.C; Chicago, IL; Houston, TX, Los Angeles, CA; San…” Source: RevenueBase Database · checked Sep 28, 2026
23	Harris Williams	Partial evidence	Richmond, VA, United StatesHQ checked Sep 28, 2026	501-1,000	662 contacts →
	Partial evidence “Harris Williams is a global investment bank specializing in M&A, private capital solutions, and primary fund placement.” Source: RevenueBase Database · checked Sep 28, 2026
24	Greenhill & CO	Indirect evidence	New York, United StatesHQ checked Sep 28, 2026	201-500	625 contacts →
	Indirect evidence “Greenhill & Co, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
25	Parker POE Adams & Bernstein LLP	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 28, 2026	501-1,000	584 contacts →
	Indirect evidence “Businesses and local governments turn to Parker Poe to structure transactions, navigate regulations, and resolve disputes.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: investment banking law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names investment banking law firms.
Partial evidence: Its own public description names part of investment banking law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name investment banking law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,943 investment banking law firms based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 47,461 reachable decision-makers.

Free signup · no credit card

View the full list →

Investment banking law firms based in the United States at a glance

As of Sep 28, 2026

51.4%Verified-email coverage

47.5Average contacts per company

1-10Median size (employees)

18.1%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,025

11-50

674

51-200

154

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,943 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among investment banking law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “investment banking law firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names investment banking law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among investment banking law firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 47,461 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Investment banking law firms by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names investment banking law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many investment banking law firms are there based in the United States?

RevenueBase identified 1,943 investment banking law firms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Kirkland & Ellis, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most investment banking law firms?

New York leads with 351 headquartered companies, followed by Los Angeles (83) and Chicago (75).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 47,461 verified decision-maker contacts tracked across these 1,943 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,943 investment banking law firms based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Investment banking law firms by geography

Browse the directory

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.