Company lists · Data refreshed September 2026

Top 25 Grassroots consulting firms based in Washington, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 444 companies tracked

RevenueBase identified 444 company matches for grassroots consulting firms associated with Washington, United States as of September 2026 and tracks 4,076 professional contacts across them, including 1,701 with verified work emails. Across the United States, Washington is the largest hub for this category.

This list covers company matches for grassroots consulting firms 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 28, 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 28, 2026 How this list was built

444Companies

4,076Contacts tracked

1,701Verified emails

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The 25 largest grassroots consulting firms based in Washington, United States

Ranked by team size

Top 25 of 444 company matches for grassroots consulting firms based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Fieldworks	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	5,001-10,000	336 contacts →
	Exact match “FieldWorks brings innovative grassroots and field strategies to Democratic and progressive campaigns and organizations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Cornerstone Government Affairs	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
3	M R	Exact match	Washington, United StatesHQ recorded Sep 28, 2026	51-200	208 contacts →
	Exact match “We are M+R.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	DCI	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5	Mcallister & Quinn	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
6	Invariant	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
7	The Kaizen Company	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	150 contacts →
	Exact match “Kaizen, a Tetra Tech company, offers an alternative approach to development.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	The Cohen Group	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	110 contacts →
	Exact match “Who We Are A talented team of experts with years of experience in both government and industry, with a passion for finding solutions and a deep understanding of the institutions…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Hilltop Consultants	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	101 contacts →
	Exact match “Hilltop Consultants is a consulting organization entirely run by Georgetown University undergraduates that executes and leads 6-7 strategy consulting projects each semester for…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	TFG The Ferguson Group	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
11	Freedman Consulting, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
12	Strategix Management LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	201-500	59 contacts →
	Exact match “Founded in 2016 by President and CEO, Jonathan Crawley, Strategix Management LLC employs cutting-edge technology to streamline and ignite program activities that increase the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	The Roosevelt Group	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
14	Cgcn Group	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
15	Ward Circle Strategies	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	52 contacts →
	Exact match “Ward Circle Strategies, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Hilltop Public Solutions	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
17	Advocacy Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
18	Carmen Group	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	51 contacts →
	Exact match “Carmen Group is Washington’s leading government affairs consulting firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Making Cents International	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	48 contacts →
	Exact match “Making Cents International is a results-driven development consulting firm founded on the principles of social entrepreneurship.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	BTG	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	44 contacts →
	Exact match “At BTG, we provide turnkey solutions that minimize risk and optimize the inclusion of small businesses on large, complex projects.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Deliver Strategies	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	34 contacts →
	Exact match “Our firm was founded so that hardworking Americans have a loud, strong voice in the political process.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	West END Strategy Team	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “Strategic communications succeeds when it inspires change.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Kountoupes Denham Carr & Reid Kdcr Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “Kountoupes Denham Carr and Reid is a women-owned and -led bipartisan, results driven firm that offers clients invaluable assistance in navigating the legislative and political…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Collaborative Communications Group	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “Collaborative Communications is a national communications consultancy dedicated to efforts that help build a more educated, engaged, and equal society, where every child and young…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	The Normandy Group	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	1-10	25 contacts →
	Exact match “The Normandy Group is a bipartisan government relations and public affairs firm based in Washington DC.” Recorded in the RevenueBase company graph · Sep 28, 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 “grassroots consulting firms”. 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 444 grassroots consulting firms based in Washington, United States

See the full list, filter by size, metro and specialty, and access 1,701 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Grassroots consulting firms based in Washington, United States at a glance

As of Sep 28, 2026

41.7%Verified-email coverage

9.2Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

349

11-50

51-200

201-500

1,001-5,000

5,001-10,000

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 444 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 “grassroots consulting firms” 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 1,701 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 28, 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.

Grassroots consulting firms 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 “grassroots consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grassroots consulting firms are there based in Washington, United States?

RevenueBase identified 444 company matches for grassroots consulting firms 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?

Fieldworks 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 grassroots consulting firms?

Washington leads the United States with 444 company records, followed by New York (344) and Chicago (206).

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 1,701 professional contacts with verified work emails tracked across these 444 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 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 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.