Company lists · Data verified August 2026

Top 25 Advocacy consulting firms based in New York, United States

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 234 companies tracked

There are 234 advocacy consulting firms headquartered in New York, United States (RevenueBase, August 2026). RevenueBase tracks 3,345 professional contacts across them, including 1,730 with verified work emails and 1,544 with mobile numbers. Washington is the largest hub.

This list covers advocacy consulting 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. Data current as of August 28, 2026.

234Companies

3,345Contacts tracked

1,730Verified emails

1,544Mobile numbers

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The 25 largest advocacy consulting firms based in New York, United States

Ranked by team size

Top 25 of 234 advocacy consulting firms based in New York, United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Boies Schiller Flexner LLP	New York, NY	501-1,000	541	286
2	DKC	New York, NY	201-500	346	147
3	Berlinrosen, An Orchestra Company	New York, NY	201-500	307	176
4	AVŌQ	New York, NY	201-500	205	177
5	Orchestra	New York, NY	501-1,000	167	103
6	M C Saatchi SSK	New York, NY	51-200	140	33
7	H Advisors Abernathy	New York, NY	51-200	87	51
8	Kasirer LLC	New York, NY	11-50	77	43
9	Marino	New York, NY	11-50	70	44
10	Burns Charest LLP	New York, NY	11-50	64	59
11	Dubin Research & Consulting DRC	New York, NY	11-50	64	48
12	The Advance Group TAG	New York, NY	11-50	56	5
13	Bolton-St. Johns	New York, NY	11-50	53	42
14	Hiltzik Strategies	New York, NY	11-50	41	36
15	Sloane & Company	New York, NY	11-50	41	28
16	VOZ Advisors	New York, NY	11-50	33	30
17	Anat Gerstein, INC	New York, NY	11-50	28	15
18	Gladstone Place Partners	New York, NY	11-50	24	21
19	Hirsch Leatherwood	New York	11-50	20	14
20	WIT Legal, LLC	New York, NY	11-50	20	11
21	Reevemark	New York	11-50	19	18
22	Gotham Government Relations	New York, NY	11-50	19	13
23	Whitman Insight Strategies	New York, NY	11-50	19	9
24	The Friedlander Group	New York	11-50	17	1
25	Eidolon Communications	New York, NY	11-50	15	11

Showing 25 of 234 advocacy consulting firms based in New York, United States

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Advocacy consulting firms based in New York, United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

WashingtonLargest hub · 870 HQs

1,544Contacts with mobile numbers

20Emails re-verified in last 30 days

Companies by employee count

1-10

167

11-50

51-200

201-500

501-1,000

Advocacy consulting firms by metro in the United States

Metro	Companies
Advocacy consulting firms in Washington	870
Advocacy consulting firms in New York	234
Advocacy consulting firms in Chicago	140
Advocacy consulting firms in Sacramento	132
Advocacy consulting firms in Los Angeles	130
Advocacy consulting firms in Austin	121
Advocacy consulting firms in Atlanta	104
Advocacy consulting firms in Boston	91

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “advocacy consulting firms”, with match quality audited by blind human judging, and headquartered in New York, United States.
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: Contact records re-verify on a rolling cadence; 20 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many advocacy consulting firms are there based in New York, United States?

There are 234 advocacy consulting firms headquartered in New York, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Boies Schiller Flexner LLP, headquartered in New York, tops this list with the largest team on record.

Which city has the most advocacy consulting firms?

Washington leads with 870 headquartered companies, followed by New York (234) and Chicago (140).

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 1,730 verified decision-maker contacts tracked across these 234 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.