Company lists · Data refreshed September 2026

Top 25 Investment management law firms based in the United States

Name: Investment management 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 4, 2026 11,085 companies tracked

RevenueBase identified 11,085 investment management law firms headquartered in the United States as of September 2026 and tracks 248,301 professional contacts across them, including 127,015 with verified work emails and 121,761 with mobile numbers. New York is the largest hub.

This list covers investment management 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 4, 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 4, 2026 86% judged on-target in blind review

11,085Companies

248,301Contacts tracked

127,015Verified emails

121,761Mobile numbers

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

Ranked by team size

Top 25 of 11,085 investment management law firms based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to investment management 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	Merrill Lynch	Partial evidence	New York, NY, United StatesHQ checked Sep 4, 2026	10001+	32,861 contacts →
	Partial evidence “Founded in 1914, Merrill is one of the largest wealth management businesses in the world.” Source: RevenueBase Database · checked Sep 4, 2026
2	Kirkland & Ellis	Partial evidence	Chicago, TX, United StatesHQ checked Sep 4, 2026	5,001-10,000	8,319 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 4, 2026
3	J.P. Morgan Asset Management	Indirect evidence	New York, NY, United StatesHQ checked Sep 4, 2026	10001+	4,833 contacts →
	Indirect evidence “At J.P.” Source: RevenueBase Database · checked Sep 4, 2026
4	Mayer Brown	Partial evidence	Chicago, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	4,209 contacts →
	Partial evidence “Mayer Brown is a leading international law firm, positioned to represent the world’s major corporations, funds and financial institutions in their most important and complex…” Source: RevenueBase Database · checked Sep 4, 2026
5	Paul Hastings	Indirect evidence	Worldwide, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,028 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 4, 2026
6	Neuberger Berman	Partial evidence	New York, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,689 contacts →
	Partial evidence “Neuberger Berman is an employee-owned, private, independent investment manager founded in 1939 with 2,800 employees in 26 countries.” Source: RevenueBase Database · checked Sep 4, 2026
7	Morrison Foerster	Indirect evidence	San Francisco, DC, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,660 contacts →
	Indirect evidence “Morrison Foerster transforms complexity into advantage.” Source: RevenueBase Database · checked Sep 4, 2026
8	Paul, Weiss, Rifkind, Wharton & Garrison LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,652 contacts →
	Partial evidence “Paul, Weiss, Rifkind, Wharton & Garrison LLP is a global law firm of more than 1,500 lawyers focused on helping clients navigate their most complex legal and business challenges.” Source: RevenueBase Database · checked Sep 4, 2026
9	Arnold & Porter	Indirect evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,324 contacts →
	Indirect evidence “Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Source: RevenueBase Database · checked Sep 4, 2026
10	Proskauer Rose LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,091 contacts →
	Indirect evidence “We are 800+ lawyers serving clients from offices located in the leading financial and business centers in the Americas, Europe and Asia.” Source: RevenueBase Database · checked Sep 4, 2026
11	Dechert LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,056 contacts →
	Partial evidence “Dechert is the law firm that helps business leaders lead.” Source: RevenueBase Database · checked Sep 4, 2026
12	Nelson Mullins Riley & Scarborough	Partial evidence	Columbia, SC, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,036 contacts →
	Partial evidence “Established in 1897, Nelson Mullins is an Am Law 100 firm of more than attorneys, policy advisors and professionals with 33 offices in 17 states and Washington, D.C.” Source: RevenueBase Database · checked Sep 4, 2026
13	Creative Planning	Indirect evidence	Overland Park, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,851 contacts →
	Indirect evidence “Independent wealth advisory firm Creative Planning and its affiliates manage and advise on 710 billion in combined assets and serve clients in all 50 states and abroad.* At…” Source: RevenueBase Database · checked Sep 4, 2026
14	Venable LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,791 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 4, 2026
15	Federated Hermes	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,742 contacts →
	Partial evidence “Federated Hermes, Inc.(FHI) is one of the nation's largest investment managers offering equity, international, fixed income, alternative and money market strategies.” Source: RevenueBase Database · checked Sep 4, 2026
16	Ballard Spahr LLP	Partial evidence	Philadelphia, DC, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,720 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 4, 2026
17	Rockefeller Capital Management	Partial evidence	New York, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,634 contacts →
	Partial evidence “At Rockefeller Capital Management, we aspire to bring the unique promise of the Rockefeller legacy together with a culture of innovation and cutting-edge technology to help…” Source: RevenueBase Database · checked Sep 4, 2026
18	Katten Muchin Rosenman LLP	Partial evidence	Chicago, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,493 contacts →
	Partial evidence “Katten is a full-service law firm with nearly 650 attorneys in locations across the United States and in London and Shanghai.” Source: RevenueBase Database · checked Sep 4, 2026
19	Mercer Advisors	Indirect evidence	Denver, CO, United StatesHQ checked Sep 4, 2026	501-1,000	1,417 contacts →
	Indirect evidence “Are you looking to amplify and simplify your financial life?” Source: RevenueBase Database · checked Sep 4, 2026
20	Clark Hill LAW	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,355 contacts →
	Indirect evidence “At Clark Hill, our value proposition is simple.” Source: RevenueBase Database · checked Sep 4, 2026
21	Quarles & Brady LLP	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,333 contacts →
	Indirect evidence “For over 125 years, Quarles & Brady LLP has provided quality legal services to a wide range of industries on a national stage.” Source: RevenueBase Database · checked Sep 4, 2026
22	Focus Partners	Partial evidence	Clayton, IL, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,238 contacts →
	Partial evidence “Focus is an organization of wealth, asset, and business management resources that brings strength, innovation, and partnership to client relationships.” Source: RevenueBase Database · checked Sep 4, 2026
23	Hinshaw & Culbertson LLP	Partial evidence	Chicago, CA, United StatesHQ checked Sep 4, 2026	501-1,000	1,193 contacts →
	Partial evidence “Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” Source: RevenueBase Database · checked Sep 4, 2026
24	Lord Abbett	Indirect evidence	Jersey City, NJ, United StatesHQ checked Sep 4, 2026	501-1,000	1,181 contacts →
	Indirect evidence “Our Vision We aspire to be the most respected asset manager in the world, admired for our people, our performance, our relationships, and our organizational agility.” Source: RevenueBase Database · checked Sep 4, 2026
25	Stinson LLP	Indirect evidence	500 Attorneys. 16 Locations Nationwide., CO, United StatesHQ checked Sep 4, 2026	501-1,000	1,170 contacts →
	Indirect evidence “Stinson LLP collaborates with clients ranging from individuals and privately held enterprises to national companies and international public corporations.” Source: RevenueBase Database · checked Sep 4, 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 management 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 management law firms.
Partial evidence: Its own public description names part of investment management 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 management 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 11,085 investment management law firms based in the United States

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

As of Sep 4, 2026

51.2%Verified-email coverage

49.0%Mobile-number coverage

22.4Average contacts per company

1-10Median size (employees)

6.7%Largest-city concentration · New York

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

7,401

11-50

2,800

51-200

599

201-500

126

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

11,28831–60

67,03661–90

48,03590–180

656180+

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 management 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 management 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 management 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 management 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, 127,015 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 4, 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 management 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 management 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 management law firms are there based in the United States?

RevenueBase identified 11,085 investment management 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?

Merrill Lynch, headquartered in New York, tops this list with the largest team on record.

Which city has the most investment management law firms?

New York leads with 747 headquartered companies, followed by Chicago (258) and Atlanta (186).

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 127,015 verified decision-maker contacts tracked across these 11,085 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 4, 2026.

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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.