Company lists · Data refreshed November 2026

Top 25 Carbon reporting and verification services based in the United States

RevenueBase identified 140 company matches for carbon reporting and verification services associated with the United States as of November 2026 and tracks 2,146 professional contacts across them, including 1,220 with verified work emails. New York is the largest hub.

This list covers company matches for carbon reporting and verification services 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 November 6, 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 Nov 6, 2026 How this list was built
140Companies
2,146Contacts tracked
1,220Verified emails
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The 25 largest carbon reporting and verification services based in the United States

Ranked by team size
Top 25 of 140 company matches for carbon reporting and verification services based in the United States, 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 matchAmsterdam, NY, United StatesHQ recorded Nov 6, 2026501-1,000566 contacts →

Exact match

“Organizations come to ACT when a climate target, regulatory requirement, or emissions challenge needs a solution.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSanta Clara, CA, United StatesHQ recorded Nov 6, 2026201-500335 contacts →

Exact match

“Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMclean, VA, United StatesHQ recorded Nov 6, 202651-200114 contacts →

Exact match

“RE Tech Advisors, a Legence Company, offers an integrated suite of solutions designed to drive building performance, decrease costs, and overcome any project challenge.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDes Moines, IA, United StatesHQ recorded Nov 6, 202651-200102 contacts →

Exact match

“EcoEngineers, an LRQA company, is a consulting, auditing, and advisory firm with an exclusive focus on the energy transition and decarbonization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRaleigh, NC, United StatesHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Greenplaces helps businesses turn risk into a competitive advantage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026501-1,00066 contacts →

Exact match

“We set the standards to measure and manage emissions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWestford, MA, United StatesHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“Onlygood is a cloud-based technology platform for companies to monitor and reduce their carbon footprint.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“Pachama has now been acquired by Carbon Direct.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSeattle, DC, United StatesHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“The Greenhouse Gas Management Institute (GHGMI) was founded in response to the current and future need for qualified greenhouse gas (GHG) professionals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Pioneers** in the fundamentals of greenhouse gas management, Agendi brings a team of multidisciplinary experts to develop and implement your climate and sustainability programs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“The Climate Action Reserve is the most trusted, efficient and experienced carbon registry for global carbon markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchKaty, TX, United StatesHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“Formed in 2010 and headquartered in Houston, Texas, Encino Environmental Services, LLC is an emissions testing, monitoring, and compliance support firm serving critical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchNorth Little Rock, AR, United StatesHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“ACR creates confidence in the integrity of carbon markets to catalyze transformational climate results.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“The Climate Registry (TCR) is a non-profit organization that empowers North American organizations to be climate leaders by providing best-in-class programs and services for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBurlington, ME, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Cx Associates is a mission-driven engineering consulting firm founded in 1994, with offices in Burlington, VT and Portland, ME.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAlexandria, VA, United StatesHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“EarthClaims LLC provides private, third-party verification services to clients worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMinneapolis, MN, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“At EP Carbon, we lead the charge in developing and managing high-quality carbon projects that meet the highest standards of environmental integrity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNorth Lawrence, OH, United StatesHQ recorded Nov 6, 20261-1017 contacts →

Exact match

“Aster Global is a progressive leader in the development and provision of services within the international greenhouse gas (GHG) ecosystem services, carbon sequestration, and GHG…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Athian's cloud-based platform benchmarks, validates, and certifies GHG reductions, carbon capture, and energy production to monetize sustainability in a centralized marketplace.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan Mateo, CA, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Sustainability can feel overwhelming.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Cleartrace is an energy data and carbon accounting platform providing companies with the digital infrastructure to enable decision-making to mitigate environmental risk, prove…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Since 2019, The Change Climate Project has helped hundreds of brands differentiate themselves through our high impact climate certification program, which has catalyzed more than…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Climate Vault Solutions is an independent, science-driven firm helping organizations make defensible decisions in carbon markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSheridan, WY, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“We are emissions compliance professionals who specialize in communications-driven emissions testing to help our partners in the oil & gas industries achieve their compliance goals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchRoyersford, PA, United StatesHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“GreenCircle Certified, LLC was established to ensure specificity in third-party certification after encountering many unsubstantiated claims in the marketplace.”

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

Showing 25 of 140 carbon reporting and verification services based in the United States

See the full list, filter by size, metro and specialty, and access 1,220 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Carbon reporting and verification services based in the United States at a glance

As of Nov 6, 2026
56.8%Verified-email coverage
15.3Average contacts per company
1-10Median size (employees)
11.4%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
85
11-50
45
51-200
7
201-500
1
501-1,000
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 140 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 “carbon reporting and verification services” 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 1,220 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.

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 “carbon reporting and verification services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many carbon reporting and verification services are there based in the United States?

RevenueBase identified 140 company matches for carbon reporting and verification services associated with the United States 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?

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

Which city has the most carbon reporting and verification services?

New York leads with 16 company records, followed by Dallas (5) and San Francisco (5).

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 1,220 professional contacts with verified work emails tracked across these 140 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.

Ready to reach these companies? Verified emails and direct dials for all 140 carbon reporting and verification services based in the United States. Start with a free account, no credit card.

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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.