Company lists · Data refreshed September 2026

Top 25 AI impact assessment companies based in the United States

RevenueBase identified 158 AI impact assessment companies headquartered in the United States as of September 2026 and tracks 941 professional contacts across them, including 314 with verified work emails. New York is the largest hub.

This list covers AI impact assessment 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 19, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
158Companies
941Contacts tracked
314Verified emails
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The 25 largest AI impact assessment companies based in the United States

Ranked by team size
Top 25 of 158 AI impact assessment companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to AI impact assessment 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
1Strong evidenceAgoura Hills, CA, United StatesHQ checked Sep 19, 202651-20094 contacts →

Strong evidence

“Aspen Environmental Group is an expert interdisciplinary environmental impact analysis firm, specializing in the management of environmental assessment efforts under CEQA, NEPA…”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidencePalo Alto, CA, United StatesHQ checked Sep 19, 202651-20072 contacts →

Partial evidence

“Credo AI is the category-defining leader in AI governance, helping the world’s most iconic enterprises scale AI responsibly.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceBerkeley, CA, United StatesHQ checked Sep 19, 202611-5045 contacts →

Partial evidence

“METR is a research non-profit that develops evaluations to empirically test AI systems for capabilities that could threaten catastrophic harm to society.”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-5038 contacts →

Partial evidence

“Epoch AI is a multidisciplinary research institute investigating the trajectory of Artificial Intelligence (AI).”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceArmonk, NY, United StatesHQ checked Sep 19, 202611-5035 contacts →

Partial evidence

“To examine and analyze the downside risks associated with the ubiquitous advance of AI & Automation.”

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceAustin, TX, United StatesHQ checked Sep 19, 202611-5034 contacts →

Partial evidence

“Emerj AI Research is the trust layer connecting enterprise AI buyers, practitioners, and technology providers.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceNew York, United StatesHQ checked Sep 19, 202611-5033 contacts →

Partial evidence

“BlueMark is the leading provider of independent impact verification and market intelligence for the sustainable and impact investing market.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceNew York, United StatesHQ checked Sep 19, 202611-5028 contacts →

Partial evidence

“Boundless Impact Research & Analytics is a frontier environmental impact data and analytics provider to clean technology investors, asset management firms, and companies (venture…”

Source: RevenueBase Database · checked Sep 19, 2026
9Strong evidenceFargo, ND, United StatesHQ checked Sep 19, 20261-1027 contacts →

Strong evidence

“IAIA provides the international forum for advancing innovation and communication of best practice in all forms of impact assessment so as to further the development of local…”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5026 contacts →

Partial evidence

“Trusted by Fortune 100s, Arthur enables you to discover every agent, enforce policies at scale, and ship reliable AI across ML, GenAI, and agentic systems.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 19, 202611-5023 contacts →

Partial evidence

“Discover AI, manage risks, identify threats, enforce policies, and ensure the safety of your organization's AI initiatives with SuperAlign”

Source: RevenueBase Database · checked Sep 19, 2026
12Strong evidenceBethesda, MD, United StatesHQ checked Sep 19, 202611-5018 contacts →

Strong evidence

“PlanEHS is a Washington D.C-based Environmental Impact Assessment Consulting Firm.”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceWashington, DC, United StatesHQ checked Sep 19, 202611-5015 contacts →

Partial evidence

“Luminos.AI | Automated AI Governance, Testing & Compliance Platform Luminos automates AI governance, testing, and compliance to help enterprises deploy AI systems safely and…”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceIowa City, IA, United StatesHQ checked Sep 19, 202611-5015 contacts →

Partial evidence

“BABL AI Audits and Certifies AI Systems.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceCharlottesville, VT, United StatesHQ checked Sep 19, 202611-5014 contacts →

Partial evidence

“Rho Impact quantifies the impact of companies, products, and technologies in order to empower investors and buyers to make sustainable decisions.”

Source: RevenueBase Database · checked Sep 19, 2026
16Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5014 contacts →

Partial evidence

“Your AI is your responsibility.”

Source: RevenueBase Database · checked Sep 19, 2026
17Strong evidenceCulver City, CA, United StatesHQ checked Sep 19, 202611-5012 contacts →

Strong evidence

“TAHA has been providing public sector and private clients with environmental impact assessment services for more than 35 years.”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceBerkeley, CA, United StatesHQ checked Sep 19, 20261-1010 contacts →

Partial evidence

“Accel.AI was founded in 2016 in the Bay Area with a mission is to lower the barriers to entry in engineering artificial intelligence.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceFrisco, TX, United StatesHQ checked Sep 19, 202611-5010 contacts →

Indirect evidence

“Artificial intelligence is transforming how organizations operate.”

Source: RevenueBase Database · checked Sep 19, 2026
20Partial evidenceSaginaw, MI, United StatesHQ checked Sep 19, 20261-109 contacts →

Partial evidence

“Evaluate AI Agents before launch, supervise in production, and publish human readable proof across any vendor or system.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceBurnsville, MN, United StatesHQ checked Sep 19, 202611-508 contacts →

Indirect evidence

“Summit Envirosolutions is a consulting firm providing comprehensive environmental services using state-of-the-art environmental management information systems to evaluate and…”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceSanta Barbara, CA, United StatesHQ checked Sep 19, 20261-108 contacts →

Partial evidence

Impact analytics that help energy developers build, permit and sell, and help corporations buy, justify and maximize ROI.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceCórdoba, United StatesHQ checked Sep 19, 202611-508 contacts →

Indirect evidence

“Geotellus es una empresa especializada en consultoría y asesoría ambiental.”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceSan Rafael, CA, United StatesHQ checked Sep 19, 20261-105 contacts →

Partial evidence

“PHI Institute is a new breed of organization helping the world adopt wholesome AI, that is Augmented Intelligence.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceNew York, FL, United StatesHQ checked Sep 19, 20261-104 contacts →

Partial evidence

“Health AI designs, builds, and validates secure AI systems across healthcare, education, and emerging technology sectors.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 158 AI impact assessment companies based in the United States

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AI impact assessment companies based in the United States at a glance

As of Sep 19, 2026
33.4%Verified-email coverage
6.0Average contacts per company
1-10Median size (employees)
8.2%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
121
11-50
32
51-200
5

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 158 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 AI impact assessment 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 “AI impact assessment 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 AI impact assessment 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 AI impact assessment 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, 314 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 19, 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.

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 AI impact assessment 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 AI impact assessment companies are there based in the United States?

RevenueBase identified 158 AI impact assessment 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?

Aspen Environmental Group, headquartered in Agoura Hills, tops this list with the largest team on record.

Which city has the most AI impact assessment companies?

New York leads with 13 headquartered companies, followed by San Francisco (11) and Houston (4).

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 314 verified decision-maker contacts tracked across these 158 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 19, 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.