Company lists · Data refreshed September 2026

Top 25 Family office law firms based in New York, United States

Name: Family office law firms based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 433 companies tracked

RevenueBase identified 433 family office law firms headquartered in New York, United States as of September 2026 and tracks 15,924 professional contacts across them, including 6,881 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers family office law firms headquartered in New York, 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

433Companies

15,924Contacts tracked

6,881Verified emails

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The 25 largest family office law firms based in New York, United States

Ranked by team size

Top 25 of 433 family office law firms based in New York, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to family office 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	Bank Of America Private Bank	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,898 contacts →
	Partial evidence “THE POWER TO CREATE MORE OF WHAT YOU VALUE Bank of America Private Bank focuses on complex financial needs of wealthy individuals & families–as well as institutions–helping to…” Source: RevenueBase Database · checked Sep 28, 2026
2	Cravath, Swaine & Moore LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,574 contacts →
	Indirect evidence “Cravath has been known as one of the premier U.S.” Source: RevenueBase Database · checked Sep 28, 2026
3	Cerity Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,491 contacts →
	Indirect evidence “Our mission is to positively impact the financial well-being of our clients by delivering objective financial advice.” Source: RevenueBase Database · checked Sep 28, 2026
4	Bessemer Trust	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,346 contacts →
	Strong evidence “Privately owned and independent, Bessemer Trust is a family office that has served individuals and families of substantial wealth for 118 years.” Source: RevenueBase Database · checked Sep 28, 2026
5	BNY Wealth	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	10001+	1,217 contacts →
	Indirect evidence “For over 240 years, we’ve been helping our clients build, manage and sustain their wealth.” Source: RevenueBase Database · checked Sep 28, 2026
6	Anchin	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	602 contacts →
	Indirect evidence “Effective July 1, 2026, Anchin combined with Baker Tilly, a leading advisory, tax, and assurance firm with a national and global presence across major U.S.” Source: RevenueBase Database · checked Sep 28, 2026
7	WISS	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	464 contacts →
	Indirect evidence “At Wiss, we believe there’s more to accounting than just balancing the books.” Source: RevenueBase Database · checked Sep 28, 2026
8	Wealthspire Advisors	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	437 contacts →
	Indirect evidence “Wealthspire Advisors is a New York City-based, independent registered investment advisory firm with 350+ associates in over 20 locations across the country.” Source: RevenueBase Database · checked Sep 28, 2026
9	Safra National Bank	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	399 contacts →
	Indirect evidence “Welcome to Safra National Bank.” Source: RevenueBase Database · checked Sep 28, 2026
10	Alex. Brown	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	330 contacts →
	Indirect evidence “Alex.” Source: RevenueBase Database · checked Sep 28, 2026
11	Stroock & Stroock & Lavan LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	299 contacts →
	Indirect evidence “With more than 500 legal and business professionals across the US, Stroock is a national firm with international reach.” Source: RevenueBase Database · checked Sep 28, 2026
12	BBR Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	242 contacts →
	Indirect evidence “BBR Partners is an independent boutique wealth management firm.” Source: RevenueBase Database · checked Sep 28, 2026
13	Silvercrest Asset Management	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	166 contacts →
	Strong evidence “Silvercrest Asset Management Group is an independent registered investment advisor which provides asset management and family office services to families and select institutional…” Source: RevenueBase Database · checked Sep 28, 2026
14	Moses Singer	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	156 contacts →
	Partial evidence “Moses Singer provides legal services to companies, individuals and families in the New York City area.” Source: RevenueBase Database · checked Sep 28, 2026
15	Kleinberg, Kaplan, Wolff & Cohen, P.C	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	113 contacts →
	Partial evidence “Described as “Wall Street’s best-kept secret” (US Legal 500), Kleinberg Kaplan is a premier boutique law firm that provides practical, business-minded legal counsel to investors…” Source: RevenueBase Database · checked Sep 28, 2026
16	Summit Trail Advisors	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	105 contacts →
	Indirect evidence “Our purpose is to simplify the challenges that come with generational wealth.” Source: RevenueBase Database · checked Sep 28, 2026
17	Sichenzia Ross Ference Carmel LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	95 contacts →
	Indirect evidence “Founded in 1998, Sichenzia Ross Ference Carmel LLP ("SRFC") has a long-standing reputation in the securities industry.” Source: RevenueBase Database · checked Sep 28, 2026
18	Tocqueville Asset Management	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	91 contacts →
	Partial evidence “Tocqueville Asset Management is an independent, employee-owned wealth management firm founded in 1985, with offices in New York City and Vero Beach, Florida.” Source: RevenueBase Database · checked Sep 28, 2026
19	Perelson Weiner LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	90 contacts →
	Indirect evidence “Perelson Weiner LLP is a leading advisory and full-service accounting firm where longstanding client relationships and technical expertise come together to positively impact our…” Source: RevenueBase Database · checked Sep 28, 2026
20	Dorf Nelson & Zauderer LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	88 contacts →
	Strong evidence “Dorf Nelson & Zauderer LLP is a national law firm with offices in New York, California, and New Jersey, representing corporations, executives, boards, private equity-backed…” Source: RevenueBase Database · checked Sep 28, 2026
21	TAG Associates	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	85 contacts →
	Strong evidence “TAG Associates is a leading multi-family office and portfolio management firm, entrusted with over $7 billion in assets under management for approximately 100 UHNW families.” Source: RevenueBase Database · checked Sep 28, 2026
22	Emmet, Marvin & Martin, LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	81 contacts →
	Partial evidence “Emmet, Marvin & Martin, LLP is a law firm committed to a tradition of excellence.” Source: RevenueBase Database · checked Sep 28, 2026
23	Offit Capital	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	79 contacts →
	Partial evidence “Delivering customized investment management services to help wealthy individuals, families, endowments and foundations meet their long-term financial objectives.” Source: RevenueBase Database · checked Sep 28, 2026
24	Cassin & Cassin LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	79 contacts →
	Strong evidence “Cassin & Cassin LLP, a law firm with three offices in New York City, Purchase, NY and Phoenix, AZ, has four decades of experience providing the highest quality of service to our…” Source: RevenueBase Database · checked Sep 28, 2026
25	Reitler Kailas & Rosenblatt LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	73 contacts →
	Indirect evidence “Since our founding in 1995, our mission has been to blend sound legal advice with efficient and practical business solutions to enable our clients to achieve their goals.” 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: family office 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 family office law firms.
Partial evidence: Its own public description names part of family office law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name family office 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 433 family office law firms based in New York, United States

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Family office law firms based in New York, United States at a glance

As of Sep 28, 2026

43.2%Verified-email coverage

36.8Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

253

11-50

131

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 433 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 family office 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 New York, United States whose own description of what they do matches “family office 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 family office 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 family office law firms, and records with no verified work email. Companies headquartered outside New York 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, 6,881 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.

Family office law firms by metro in the United States

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 family office 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 family office law firms are there based in New York, United States?

RevenueBase identified 433 family office law firms headquartered in New York, 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?

Bank Of America Private Bank, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most family office law firms?

New York leads the United States with 433 headquartered companies, followed by Houston (172) and Chicago (169).

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 6,881 verified decision-maker contacts tracked across these 433 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.

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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.