Company lists · Data refreshed September 2026

Top 25 Investigative journalism firms based in the United States

RevenueBase identified 98 company matches for investigative journalism firms associated with the United States as of September 2026 and tracks 1,634 professional contacts across them, including 701 with verified work emails. New York is the largest hub.

This list covers company matches for investigative journalism firms associated with the 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
98Companies
1,634Contacts tracked
701Verified emails
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The 25 largest investigative journalism firms based in the United States

Ranked by team size
Top 25 of 98 company matches for investigative journalism firms based in the 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-200250 contacts →

Exact match

“ProPublica is an independent, nonprofit newsroom that produces investigative journalism with moral force.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-200176 contacts →

Exact match

“The Pulitzer Center champions the power of stories to make complex issues relevant and inspire action.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, United StatesHQ recorded Sep 20, 202651-20099 contacts →

Exact match

“Mother Jones is a nonprofit, reader-supported newsroom founded in 1976 that reaches millions of people each month across our website, social media, videos, newsletter, and print…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-20076 contacts →

Exact match

“Jigsaw Productions is helmed by Academy Award®-winning filmmaker Alex Gibney, considered one of the most prolific and thought-provoking documentary filmmakers of our generation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5072 contacts →

Exact match

“The International Consortium of Investigative Journalists tells stories that show how the world really works, triggering positive change.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchMonaca, PA, United StatesHQ recorded Sep 20, 2026201-50069 contacts →

Exact match

“CSI is a full-service investigative firm that delivers key facts to give our clients an actionable advantage in a wide range of situations.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchArlington, VA, United StatesHQ recorded Sep 20, 202651-20066 contacts →

Exact match

“Inside Washington Publishers has more than thirty years experience delivering exclusive, investigative business reporting from Washington, DC in the areas of: environmental/energy…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5066 contacts →

Exact match

“Investigative Group International (IGI) is the premier investigative firm conducting independent, high-touch investigations worldwide.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-20065 contacts →

Exact match

“What we do WhoWhatWhy embodies a form of investigative reporting that is rigorous, relentless and scientific, we call it forensic journalism.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchAlpharetta, GA, United StatesHQ recorded Sep 20, 202651-20064 contacts →

Exact match

“Founded in 1978, Smith & Carson is a trusted and highly experienced investigative research firm that partners with the world's leading organizations to handle complex…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5062 contacts →

Exact match

“FRONTLINE is investigative journalism that questions, explains and changes our world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5060 contacts →

Exact match

“More Perfect Union, an Emmy award-winning advocacy journalism nonprofit, is built on a simple credo: “Building power for the working class.” Here’s what that means: We speak…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchTustin, CA, United StatesHQ recorded Sep 20, 202651-20041 contacts →

Exact match

“Established in 1987, RJN Investigations, Inc.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchChicago, IL, United StatesHQ recorded Sep 20, 202611-5039 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5033 contacts →

Exact match

“Intricately structured, meticulously reported stories from the best journalists in the world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchNew York, United StatesHQ recorded Sep 20, 202611-5030 contacts →

Exact match

“About The Intercept: The Intercept was launched in 2014 to provide an outlet for fearless, adversarial journalism.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchWanaque, NJ, United StatesHQ recorded Sep 20, 202611-5023 contacts →

Exact match

“Hetherington Group is a leader in investigative due diligence, corporate intelligence, and cyber investigations.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5023 contacts →

Exact match

“The Center for Public Integrity is an investigative newsroom that gives voice to the public and sparks change by going behind closed doors to reveal abuses of power in Washington.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchChicago, IL, United StatesHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“We are a journalism production company on the South Side of Chicago.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“The Washington Monthly was founded in 1969 on the notion that a handful of plucky young writers and editors, armed with an honest desire to make government work and a willingness…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchWashington, United StatesHQ recorded Sep 20, 202611-5018 contacts →

Exact match

“The Investigative Reporting Workshop, based at the School of Communication at American University, was founded in 2008 by longtime investigative journalist Chuck Lewis.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchSeattle, WA, United StatesHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“As a nonprofit, collaborative newsroom, InvestigateWest’s mission is to produce high-impact investigative journalism that holds power accountable, exposes injustice and empowers…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchSanta Cruz, CA, United StatesHQ recorded Sep 20, 202611-5013 contacts →

Exact match

“CalStar Unlimited (CA PI# 187978) is an investigative firm serving businesses, as well as the insurance companies and attorneys who work on their behalf, throughout California…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchAustin, TX, United StatesHQ recorded Sep 20, 202611-5012 contacts →

Exact match

“Alex Jones' Infowars: There's a war on for your mind!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchPhoenix, AZ, United StatesHQ recorded Sep 20, 20261-1010 contacts →

Exact match

“The Arizona Center for Investigative Reporting is the state’s only independent, nonpartisan and collaborative nonprofit newsroom dedicated to statewide, data-driven investigative…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 98 investigative journalism firms based in the United States

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

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Investigative journalism firms based in the United States at a glance

As of Sep 20, 2026
42.9%Verified-email coverage
16.7Average contacts per company
1-10Median size (employees)
12.2%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
60
11-50
24
51-200
12
201-500
2

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 98 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 the United States whose business descriptions match “investigative journalism 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 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 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.

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

How many investigative journalism firms are there based in the United States?

RevenueBase identified 98 company matches for investigative journalism firms associated with the 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?

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

Which city has the most investigative journalism firms?

New York leads with 12 company records, followed by Washington (11) and Chicago (4).

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 701 professional contacts with verified work emails tracked across these 98 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.