Company lists · Data refreshed September 2026

Top 25 Carbon accounting platforms based in the United States

Name: Carbon accounting platforms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 301 companies tracked

RevenueBase identified 301 carbon accounting platforms headquartered in the United States as of September 2026 and tracks 6,157 professional contacts across them, including 2,302 with verified work emails. New York is the largest hub.

This list covers carbon accounting platforms 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 14, 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 14, 2026 86% judged on-target in blind review

301Companies

6,157Contacts tracked

2,302Verified emails

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The 25 largest carbon accounting platforms based in the United States

Ranked by team size

Top 25 of 301 carbon accounting platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to carbon accounting platforms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Watershed	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 14, 2026	201-500	529 contacts →
	Partial evidence “Watershed is the enterprise sustainability platform.” Source: RevenueBase Database · checked Sep 14, 2026
2	Cimarron	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	501-1,000	306 contacts →
	Indirect evidence “With decades of operating history and innovation across our trusted brands, Cimarron provides technology-driven emissions management solutions for the global energy system.” Source: RevenueBase Database · checked Sep 14, 2026
3	Greenly	Indirect evidence	New York, NY, United StatesHQ checked Sep 14, 2026	201-500	305 contacts →
	Indirect evidence “Greenly is on a mission to democratize access to science-backed climate intelligence, transforming sustainability from a compliance burden into a strategic competitive advantage.” Source: RevenueBase Database · checked Sep 14, 2026
4	Picarro	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 14, 2026	201-500	297 contacts →
	Indirect evidence “Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.” Source: RevenueBase Database · checked Sep 14, 2026
5	Carbon Direct	Partial evidence	New York, United StatesHQ checked Sep 14, 2026	51-200	172 contacts →
	Partial evidence “Carbon Direct is a trusted energy and climate solutions company that combines world-class scientific expertise, technical rigor, and market insights to help clients achieve their…” Source: RevenueBase Database · checked Sep 14, 2026
6	Worldly	Partial evidence	Concord, CA, United StatesHQ checked Sep 14, 2026	51-200	144 contacts →
	Partial evidence “Worldly is the leading sustainability and supply chain intelligence platform for the consumer goods industry.” Source: RevenueBase Database · checked Sep 14, 2026
7	Touchstone IQ	Indirect evidence	Denver, CO, United StatesHQ checked Sep 14, 2026	51-200	139 contacts →
	Indirect evidence “Touchstone IQ is a leading-edge building energy management software & services company.” Source: RevenueBase Database · checked Sep 14, 2026
8	Persefoni	Indirect evidence	Mesa, AZ, United StatesHQ checked Sep 14, 2026	201-500	137 contacts →
	Indirect evidence “Persefoni AI Inc.” Source: RevenueBase Database · checked Sep 14, 2026
9	Measurabl	Partial evidence	San Diego, CA, United StatesHQ checked Sep 14, 2026	201-500	136 contacts →
	Partial evidence “Measurabl is the world's most widely adopted sustainability data platform for real estate.” Source: RevenueBase Database · checked Sep 14, 2026
10	Pulsora	Partial evidence	San Mateo, CA, United StatesHQ checked Sep 14, 2026	51-200	98 contacts →
	Partial evidence “Pulsora is a sustainability management platform that helps businesses simplify and consolidate complex ESG operations, processes, and data in one centralized hub.” Source: RevenueBase Database · checked Sep 14, 2026
11	Locus Technologies	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 14, 2026	51-200	95 contacts →
	Indirect evidence “Locus Technologies is the only scientist-driven software company at the nexus of analytical and field data management, Environmental, Health, and Safety (EHS) compliance, and…” Source: RevenueBase Database · checked Sep 14, 2026
12	Context Labs BV	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 14, 2026	51-200	86 contacts →
	Indirect evidence “Context Labs is dedicated to sourcing, organizing, and contextualizing the world’s climate information.” Source: RevenueBase Database · checked Sep 14, 2026
13	Credibl	Partial evidence	Fremont, CA, United StatesHQ checked Sep 14, 2026	51-200	77 contacts →
	Partial evidence “Credibl: AI-Powered Sustainability Intelligence Platform!” Source: RevenueBase Database · checked Sep 14, 2026
14	Green Project Technologies	Partial evidence	New York, NY, United StatesHQ checked Sep 14, 2026	51-200	63 contacts →
	Partial evidence “Green Project Technologies, an ACT Group company, is the global AI-powered platform helping enterprises and their suppliers measure, manage, and reduce emissions across operations…” Source: RevenueBase Database · checked Sep 14, 2026
15	Greenplaces	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 14, 2026	51-200	62 contacts →
	Indirect evidence “Greenplaces helps businesses turn risk into a competitive advantage.” Source: RevenueBase Database · checked Sep 14, 2026
16	Nevadanano	Indirect evidence	Sparks, NV, United StatesHQ checked Sep 14, 2026	51-200	61 contacts →
	Indirect evidence “NevadaNano provides safety and climate solutions for many of the world’s largest corporations, with innovative multi-gas sensing products and IIoT automated emissions monitoring…” Source: RevenueBase Database · checked Sep 14, 2026
17	Gravity	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 14, 2026	51-200	57 contacts →
	Strong evidence “Gravity is the only enterprise carbon and energy management platform that helps companies automate reporting and deploy cost-saving energy projects.” Source: RevenueBase Database · checked Sep 14, 2026
18	Aclima, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 14, 2026	51-200	57 contacts →
	Indirect evidence “Aclima is pioneering an entirely new way to diagnose the health of our air and track climate-changing pollution.” Source: RevenueBase Database · checked Sep 14, 2026
19	Sinai Carbon Management	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 14, 2026	51-200	56 contacts →
	Indirect evidence “SINAI Technologies Inc.” Source: RevenueBase Database · checked Sep 14, 2026
20	SPRIH	Partial evidence	Philadelphia, DE, United StatesHQ checked Sep 14, 2026	11-50	43 contacts →
	Partial evidence “Sprih is an AI-native enterprise intelligence platform that transforms fragmented operational, supplier, and sustainability data into real-time business intelligence.” Source: RevenueBase Database · checked Sep 14, 2026
21	Tracera	Partial evidence	New York, NY, United StatesHQ checked Sep 14, 2026	11-50	43 contacts →
	Partial evidence “Tracera is a cutting-edge platform empowering businesses to achieve sustainability goals with high-integrity, auditable ESG data.” Source: RevenueBase Database · checked Sep 14, 2026
22	Scaler	Indirect evidence	New York, NY, United StatesHQ checked Sep 14, 2026	11-50	39 contacts →
	Indirect evidence “Scaler helps real estate investors and managers turn fragmented building data into actionable portfolio-wide insights.” Source: RevenueBase Database · checked Sep 14, 2026
23	Watchwire By Tango	Indirect evidence	New York, NY, United StatesHQ checked Sep 14, 2026	11-50	39 contacts →
	Indirect evidence “Tango Energy & Sustainability (fka WatchWire) is a sustainability and energy management software-as-a-service (EMSaaS) provider.” Source: RevenueBase Database · checked Sep 14, 2026
24	Enertiv	Partial evidence	New York, NY, United StatesHQ checked Sep 14, 2026	51-200	37 contacts →
	Partial evidence “Enertiv is the only vertically integrated sustainability platform for real estate, combining investor-grade reporting at the portfolio level with deep expertise in property-level…” Source: RevenueBase Database · checked Sep 14, 2026
25	Onlygood Ogfpl	Strong evidence	Westford, MA, United StatesHQ checked Sep 14, 2026	11-50	37 contacts →
	Strong evidence “Onlygood is a cloud-based technology platform for companies to monitor and reduce their carbon footprint.” Source: RevenueBase Database · checked Sep 14, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: carbon accounting platforms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names carbon accounting platforms.
Partial evidence: Its own public description names part of carbon accounting platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name carbon accounting platforms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 301 carbon accounting platforms based in the United States

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Carbon accounting platforms based in the United States at a glance

As of Sep 14, 2026

37.4%Verified-email coverage

20.5Average contacts per company

1-10Median size (employees)

10.6%Largest-city concentration · New York

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

160

11-50

104

51-200

201-500

501-1,000

1,001-5,000

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 301 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 carbon accounting platforms, 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 “carbon accounting platforms”. 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 carbon accounting platforms), 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 carbon accounting platforms, 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, 2,302 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 14, 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.

Carbon accounting platforms by metro

Carbon accounting platforms in New York32
Carbon accounting platforms in San Francisco27

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 carbon accounting platforms, 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 carbon accounting platforms are there based in the United States?

RevenueBase identified 301 carbon accounting platforms 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?

Watershed, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most carbon accounting platforms?

New York leads with 32 headquartered companies, followed by San Francisco (27) and Houston (13).

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 2,302 verified decision-maker contacts tracked across these 301 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 14, 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.