Company lists · Data refreshed November 2026

Top 25 Opposition research firms worldwide

RevenueBase identified 280 company matches for opposition research firms worldwide as of November 2026 and tracks 2,771 professional contacts across them, including 807 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers company matches for opposition research firms worldwide, 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 November 6, 2026. Country and city lists for opposition research firms follow the table.

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 Nov 6, 2026 How this list was built
280Companies
2,771Contacts tracked
807Verified emails
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The 25 largest opposition research firms worldwide

Ranked by team size
Top 25 of 280 company matches for opposition research firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchUnited StatesHQ recorded Nov 6, 2026201-500249 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchColorado Springs, CO, United StatesHQ recorded Nov 6, 2026201-500226 contacts →

Exact match

“Luce Research is located in beautiful Colorado Springs, Colorado.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNew York, CT, United StatesHQ recorded Nov 6, 202651-200186 contacts →

Exact match

“Global Strategy Group is the go-to public affairs, communications, and research partner for companies, causes, and campaigns.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPune, IndiaHQ recorded Nov 6, 202651-200114 contacts →

Exact match

“The Strelema, a leading political consulting and strategic intelligence firm, dedicated to empowering Political Leaders, Political Parties, Organizations and Institutions with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“Creada en 1982.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBangalore, IndiaHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Rajneethi has firmly established itself at the forefront of political and governance consulting since 2012.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDavenport, WI, United StatesHQ recorded Nov 6, 202611-5074 contacts →

Exact match

“Founded by Steve Grubbs in 1993, Victory Enterprises, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKansas City, MO, United StatesHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Axiom is a full-service political consulting firm that specializes in general campaign strategy, direct voter contact, field strategy, political polling and analysis, media…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAlexandria, VA, United StatesHQ recorded Nov 6, 202611-5053 contacts →

Exact match

“Leading GOP media research and media buying agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“Hart Research Associates is one of the leading public opinion research firms in the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchPune, IndiaHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“RUDRA (Reliable Unit of Data Research and Analytics) is a holistic research, strategy, and marketing agency working with candidates, parties, and causes to move people to action.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWashington, United StatesHQ recorded Nov 6, 202611-5046 contacts →

Exact match

“GQR is one of the world's premier opinion research and strategic consulting firms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202611-5045 contacts →

Exact match

“Lake Research Partners is a national public opinion and political strategy research firm founded by Celinda Lake in 1995.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMontgomery, HI, United StatesHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“Impact Research (formerly known as ALG Research) is a progressive public opinion research firm specializing in message development and strategic consulting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchProvidencia, ChileHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Ekhos I+C ha desarrollado desde una amplia experiencia en el área de estudios de opinión, y en estudios de preferencias políticas y electorales, así como en el área de la…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAlexandria, VA, United StatesHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Public Opinion Strategies is a market research company specializing in corporate and public policy research.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“We’ve conducted over polls since our founding in 2017, and surveyed over 3 million unique respondents.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLas Vegas, NV, United StatesHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“McGuire Research Services helps organizations collect reliable, actionable insights across global markets, industries, and hard-to-reach audiences.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchQuito, EcuadorHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“A lo largo de sus 49 años de vida profesional, CEDATOS ha desarrollado metodologías dirigidas al diseño, implementación y ejecución de estudios económicos, sociales, de mercado y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBerkeley, CA, United StatesHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Fairbank, Maslin, Maullin, Metz & Associates (FM3), a California corporation, has specialized in public policy-oriented opinion research since 1981.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTurin, ItalyHQ recorded Nov 6, 20261-1026 contacts →

Exact match

“Quorum è un istituto specializzato in ricerche demoscopiche e consulenza politica, nato dallo staff che ha fondato il sito di analisi politica TermometroPolitico.it.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchPorto Alegre, BrazilHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“O IPO utiliza a ciência para produzir conhecimento e gerar informação estratégica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Our firm offers broad expertise in survey research and strategic consulting in corporate communications, branding strategy, international relations, and political campaigns at all…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchPasig, PhilippinesHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“WR Numero is an independent and non-partisan public opinion research firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPasig City, PhilippinesHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Public affairs”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 280 opposition research firms worldwide

See the full list, filter by size, metro and specialty, and access 807 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Opposition research firms worldwide at a glance

As of Nov 6, 2026
29.1%Verified-email coverage
9.9Average contacts per company
1-10Median size (employees)
6.1%Largest-city concentration · Washington
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
165
11-50
82
51-200
25
201-500
6
501-1,000
1
1,001-5,000
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for opposition research firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “opposition research 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. 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 807 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 November 6, 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.

Opposition research firms by location

1 lists · largest first

Every Opposition research firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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

How many opposition research firms are there worldwide?

RevenueBase identified 280 company matches for opposition research firms worldwide as of November 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?

KGS Research tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most opposition research firms?

The United States leads with 115 companies. Every opposition research firms list by country and city is linked on this page.

Which city has the most opposition research firms?

Washington leads with 17 company records, followed by New York (8) and Arlington (6).

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 807 professional contacts with verified work emails tracked across these 280 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 November 6, 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.