Company lists · Data refreshed September 2026

Top 25 Government relations consultants based in Washington, United States

Name: Government relations consultants based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 530 companies tracked

RevenueBase identified 530 company matches for government relations consultants associated with Washington, United States as of September 2026 and tracks 6,440 professional contacts across them, including 3,215 with verified work emails. Across the United States, Washington is the largest hub for this category.

This list covers company matches for government relations consultants associated with Washington, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built

530Companies

6,440Contacts tracked

3,215Verified emails

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The 25 largest government relations consultants based in Washington, United States

Ranked by team size

Top 25 of 530 company matches for government relations consultants based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	DDC Public Affairs	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	411 contacts →
	Exact match “DDC Public Affairs builds communities of advocates that impact policy and win campaigns.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Cornerstone Government Affairs	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	201-500	255 contacts →
	Exact match “Cornerstone Government Affairs is a full-service, bipartisan, employee-owned firm specializing in government relations and lobbying, public affairs, strategic communications, and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	BGR Group	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	243 contacts →
	Exact match “The Services You Need BGR Group offers an integrated suite of bipartisan lobbying, strategic communications and advocacy solutions that help meet challenges in a risky…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	SKDK	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	220 contacts →
	Exact match “SKDK provides strategic advice, public relations, crisis communications, advertising, direct mail, and research to national and international companies, advocacy organizations…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	AVŌQ	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	201-500	205 contacts →
	Exact match “Excellence isn’t enough.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	DCI	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	198 contacts →
	Exact match “DCI Group is an independent public affairs consulting firm that specializes in public relations, crisis management, grassroots engagement, and digital advocacy.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Mcallister & Quinn	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	170 contacts →
	Exact match “McAllister & Quinn is a Washington, DC consulting firm that provides a comprehensive range of services to a diverse group of clients with issues before the federal government.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Invariant	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	166 contacts →
	Exact match “Invariant is a bipartisan business advisory firm, providing strategic advice to companies, trade associations, non-profits, and individuals on how to make Washington work for them.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Public & Government Affairs At Edelman	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	201-500	121 contacts →
	Exact match “Edelman’s public and government affairs team of consultants are trusted and experienced public affairs advisors-including former government officials, political advisors, policy…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Monument Advocacy	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	97 contacts →
	Exact match “Monument Advocacy is a bipartisan firm that offers government relations, public affairs, strategic and crisis communications, and digital services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	TFG The Ferguson Group	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	11-50	84 contacts →
	Exact match “Founded in 1982, The Ferguson Group has a proud record of success advocating on behalf of local communities.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	VAN Scoyoc Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	82 contacts →
	Exact match “For more than 30 years, Van Scoyoc Associates (VSA) has been developing and executing tailored government affairs strategies for its clients.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	Mclarty Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	80 contacts →
	Exact match “McLarty Associates, An Ankura Company, is the global strategy firm led by former Clinton White House Chief of Staff Thomas F.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Cassidy & Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	79 contacts →
	Exact match “At Cassidy and Associates, we make Washington work for you.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Thorn RUN Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	69 contacts →
	Exact match “Established in 2010, Thorn Run Partners is a leading Washington, DC-based government affairs firm whose members are Capitol Hill veterans with over a century’s experience in…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	NJI	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	69 contacts →
	Exact match “NJI is an award-winning global agency that provides creative strategy for public affairs.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Capitol Counsel, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	11-50	63 contacts →
	Exact match “Capitol Counsel, LLC is a full service government relations firm providing political analysis, strategic advice and advocacy services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Freedman Consulting, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	11-50	61 contacts →
	Exact match “Freedman Consulting, LLC, a mission-driven firm, offers strategic consulting services to foundations, nonprofit organizations, and public interest coalitions, advising many of the…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Mcdermott	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	11-50	60 contacts →
	Exact match “McDermott+ serves health industry clients with one-stop lobbying services, data analytics and modeling and policy advice.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Beekeeper Group	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	11-50	55 contacts →
	Exact match “At Beekeeper Group we believe in empowering people to advocate for impact by connecting them with stakeholders that are ready to take action so that our clients can achieve their…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	The Roosevelt Group	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	11-50	53 contacts →
	Exact match “TRG is a government relations consulting firm located on the doorstep of the United States Capitol.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Lewis-Burke Associates LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	52 contacts →
	Exact match “Lewis-Burke Associates LLC is a leading full service government relations firm specializing in advocating for the public policy interests of institutions of higher education and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Cgcn Group	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	11-50	52 contacts →
	Exact match “CGCN Group is an integrated advocacy and strategic communications firm that specializes in helping Fortune 500 companies, non-profits, and trade associations navigate complex…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Hilltop Public Solutions	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	52 contacts →
	Exact match “At Hilltop, we manage high-stakes, high-profile campaigns, build coalitions and find and mobilize grasstops and grassroots advocates across the country.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Advocacy Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	11-50	51 contacts →
	Exact match “Advocacy Associates specializes in strategic grassroots and advocacy approaches designed to address the individual needs of our clients - no cookie cutter approaches are allowed.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “government relations consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 530 government relations consultants based in Washington, United States

See the full list, filter by size, metro and specialty, and access 3,215 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Government relations consultants based in Washington, United States at a glance

As of Sep 20, 2026

49.9%Verified-email coverage

12.2Average contacts per company

1-10Median size (employees)

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

376

11-50

123

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 530 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Washington, United States whose business descriptions match “government relations consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 3,215 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Government relations consultants by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “government relations consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many government relations consultants are there based in Washington, United States?

RevenueBase identified 530 company matches for government relations consultants associated with Washington, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

DDC Public Affairs tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most government relations consultants?

Washington leads the United States with 530 company records, followed by Sacramento (91) and Austin (73).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,215 professional contacts with verified work emails tracked across these 530 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 SmartSearch, 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.