Company lists · Data refreshed September 2026
Top 25 Government affairs staffing companies based in the United States
RevenueBase identified 1,531 government affairs staffing companies headquartered in the United States as of September 2026 and tracks 13,807 professional contacts across them, including 5,347 with verified work emails. Washington is the largest hub.
This list covers government affairs staffing companies 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 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.
The 25 largest government affairs staffing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 390 contacts → | ||||
Partial evidence “Mercury is a national bipartisan government relations and strategic communications firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 337 contacts → | ||||
Partial evidence “CTR Group provides staffing and recruiting services across the United States.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 255 contacts → | ||||
Strong evidence “Cornerstone Government Affairs is a full-service, bipartisan, employee-owned firm specializing in government relations and lobbying, public affairs, strategic communications, and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 199 contacts → | ||||
Partial evidence “NVT Staffing is a direct reflection of the rapid growth and expansion of our parent company, Northern Virginia Temporaries, Inc.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 188 contacts → | ||||
Indirect evidence “Strategy + Execution = Results.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 170 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 142 contacts → | ||||
Indirect evidence “Corporate Job Bank has built our business and reputation since 1985 by finding the best people.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 121 contacts → | ||||
Strong evidence “Edelman’s public and government affairs team of consultants are trusted and experienced public affairs advisors-including former government officials, political advisors, policy…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 115 contacts → | ||||
Indirect evidence “Founded in 1993, Vitaver and Associates offers three decades of expertise in professional recruitment services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 114 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 104 contacts → | ||||
Partial evidence “MultiState is a full-service state and local government relations company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 102 contacts → | ||||
Strong evidence “Stateside Associates is the largest state and local government affairs firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 97 contacts → | ||||
Strong evidence “Monument Advocacy is a bipartisan firm that offers government relations, public affairs, strategic and crisis communications, and digital services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 90 contacts → | ||||
Partial evidence “Our History Founded by an experienced team of staffing professionals and business executives, Abba Staffing & Consulting was built around core beliefs that include integrity…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 88 contacts → | ||||
Partial evidence “Kasirer is NYC's #1 lobbying firm, navigating government on behalf of private sector & nonprofit clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 88 contacts → | ||||
Partial evidence “ChaseSource is a minority owned company, specializing in recruiting and consulting that helps organizations solve their staffing problems.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 84 contacts → | ||||
Indirect evidence “Founded in 1982, The Ferguson Group has a proud record of success advocating on behalf of local communities.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 82 contacts → | ||||
Strong evidence “For more than 30 years, Van Scoyoc Associates (VSA) has been developing and executing tailored government affairs strategies for its clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 79 contacts → | ||||
Indirect evidence “At Cassidy and Associates, we make Washington work for you.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 77 contacts → | ||||
Indirect evidence “Florio Perrucci Steinhardt Cappelli & Tipton LLC was founded on the belief that business objectives can only be achieved by combining strategic and aggressive legal advocacy with…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 72 contacts → | ||||
Indirect evidence “Every day across Florida, throughout our network of 60+ lobbyists, we are navigating Tallahassee, advancing interests, amplifying voices, influencing decision makers, cutting…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 69 contacts → | ||||
Strong evidence “Ballard Partners specializes in all aspects of governmental and public affairs, including legislative and executive agency advocacy in Washington, DC, Florida, Boston, Tel Aviv…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 69 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 66 contacts → | ||||
Partial evidence “Bose Public Affairs Group successfully advocates for our clients’ legislative, regulatory, procurement, political and communication interests with offices in Indianapolis and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 63 contacts → | ||||
Partial evidence “Capitol Counsel, LLC is a full service government relations firm providing political analysis, strategic advice and advocacy services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: government affairs staffing companies. 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 government affairs staffing companies.
- Partial evidence
- Its own public description names part of government affairs staffing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name government affairs staffing companies. 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 1,531 government affairs staffing companies based in the United States
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Government affairs staffing companies based in the United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,531 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 government affairs staffing companies, 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 “government affairs staffing companies”. 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 government affairs staffing companies), 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 government affairs staffing companies, 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, 5,347 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.
Government affairs staffing companies 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 government affairs staffing companies, 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 government affairs staffing companies are there based in the United States?
RevenueBase identified 1,531 government affairs staffing companies 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?
Mercury Public Affairs, LLC, headquartered in New York, tops this list with the largest team on record.
Which city has the most government affairs staffing companies?
Washington leads with 348 headquartered companies, followed by Sacramento (68) and Austin (53).
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 5,347 verified decision-maker contacts tracked across these 1,531 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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Government affairs staffing companies by geography
- Government affairs staffing companies based in Atlanta, United States
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- Government affairs staffing companies based in Sacramento, United States
- Government affairs staffing companies based in Washington, United States
- Government affairs staffing companies based in Australia
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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.
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