Company lists · Data refreshed September 2026

Top 25 Government affairs staffing companies worldwide

RevenueBase identified 2,202 government affairs staffing companies worldwide as of September 2026 and tracks 17,881 professional contacts across them, including 6,608 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers government affairs staffing companies worldwide, 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. Country and city lists for government affairs staffing companies follow the table.

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
2,202Companies
17,881Contacts tracked
6,608Verified emails
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The 25 largest government affairs staffing companies worldwide

Ranked by team size
Top 25 of 2,202 government affairs staffing companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to government affairs staffing companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-200390 contacts →

Partial evidence

“Mercury is a national bipartisan government relations and strategic communications firm.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceNewport News, VA, United StatesHQ checked Sep 28, 2026201-500337 contacts →

Partial evidence

“CTR Group provides staffing and recruiting services across the United States.”

Source: RevenueBase Database · checked Sep 28, 2026
3Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 2026201-500255 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, 2026
4Partial evidenceFalls Church, VA, United StatesHQ checked Sep 28, 2026501-1,000199 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, 2026
5Indirect evidenceArlington, VA, United StatesHQ checked Sep 28, 2026201-500188 contacts →

Indirect evidence

“Strategy + Execution = Results.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-200170 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, 2026
7Indirect evidenceTempe, AZ, United StatesHQ checked Sep 28, 20261,001-5,000142 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, 2026
8Indirect evidenceToronto, ON, CanadaHQ checked Sep 28, 202651-200130 contacts →

Indirect evidence

“Being right isn't enough.”

Source: RevenueBase Database · checked Sep 28, 2026
9Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 2026201-500121 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, 2026
10Indirect evidenceFort Lauderdale, FL, United StatesHQ checked Sep 28, 202651-200115 contacts →

Indirect evidence

“Founded in 1993, Vitaver and Associates offers three decades of expertise in professional recruitment services.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceEnglewood, CO, United StatesHQ checked Sep 28, 202611-50114 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceItalyHQ checked Sep 28, 202651-200104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceArlington, VA, United StatesHQ checked Sep 28, 202651-200104 contacts →

Partial evidence

“MultiState is a full-service state and local government relations company.”

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceArlington, VA, United StatesHQ checked Sep 28, 202651-200102 contacts →

Strong evidence

“Stateside Associates is the largest state and local government affairs firm.”

Source: RevenueBase Database · checked Sep 28, 2026
15Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-20097 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, 2026
16Partial evidenceBedford, TX, United StatesHQ checked Sep 28, 2026501-1,00090 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, 2026
17Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5088 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, 2026
18Indirect evidenceKanata, ON, CanadaHQ checked Sep 28, 202611-5088 contacts →

Indirect evidence

“Newfound Recruiting is Your Partner in Growth.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceStafford, TX, United StatesHQ checked Sep 28, 202611-5088 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, 2026
20Indirect evidenceOttawa, ON, CanadaHQ checked Sep 28, 202651-20084 contacts →

Indirect evidence

“Founded in 1989 and independently owned by our principals, Earnscliffe operates from offices in Ottawa-Gatineau, Toronto and Vancouver.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5084 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, 2026
22Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-20082 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, 2026
23Indirect evidenceHelmond, NetherlandsHQ checked Sep 28, 202651-20081 contacts →

Indirect evidence

“Ken je ze?”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-20079 contacts →

Indirect evidence

“At Cassidy and Associates, we make Washington work for you.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceEaston, PA, United StatesHQ checked Sep 28, 202651-20077 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, 2026

Showing 25 of 2,202 government affairs staffing companies worldwide

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Government affairs staffing companies worldwide at a glance

As of Sep 28, 2026
37.0%Verified-email coverage
8.1Average contacts per company
1-10Median size (employees)
15.8%Largest-city concentration · Washington
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,680
11-50
407
51-200
89
201-500
8
501-1,000
7
1,001-5,000
5

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for government affairs staffing companies are linked below.
What qualifies
Companies worldwide 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.
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, 6,608 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 location

8 lists · largest first

Every Government affairs staffing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 worldwide?

RevenueBase identified 2,202 government affairs staffing companies worldwide 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 country has the most government affairs staffing companies?

The United States leads with 1,531 companies, followed by Canada (61) and Australia (33). Every government affairs staffing companies list by country and city is linked on this page.

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 6,608 verified decision-maker contacts tracked across these 2,202 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.