Company lists · Data refreshed September 2026

Top 25 Greenhouse gas inventory software companies based in the United States

Name: Greenhouse gas inventory software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 189 companies tracked

RevenueBase identified 189 greenhouse gas inventory software companies headquartered in the United States as of September 2026 and tracks 5,471 professional contacts across them, including 2,770 with verified work emails. New York is the largest hub.

This list covers greenhouse gas inventory software 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 28, 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 28, 2026 86% judged on-target in blind review

189Companies

5,471Contacts tracked

2,770Verified emails

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The 25 largest greenhouse gas inventory software companies based in the United States

Ranked by team size

Top 25 of 189 greenhouse gas inventory software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to greenhouse gas inventory software 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sphera	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,349 contacts →
	Indirect evidence “Sphera creates a safer, more sustainable and productive world.” Source: RevenueBase Database · checked Sep 28, 2026
2	Watershed	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	201-500	529 contacts →
	Indirect evidence “Watershed is the enterprise sustainability platform.” Source: RevenueBase Database · checked Sep 28, 2026
3	Cimarron	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
4	Greenly	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 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 28, 2026
5	Picarro	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 28, 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 28, 2026
6	Cascade Energy	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	201-500	288 contacts →
	Indirect evidence “At Cascade Energy, we believe in better.” Source: RevenueBase Database · checked Sep 28, 2026
7	Plateau GRP	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 28, 2026	51-200	192 contacts →
	Indirect evidence “Plateau Grp provides innovative and agile IT solutions to customer challenges.” Source: RevenueBase Database · checked Sep 28, 2026
8	Earthsoft	Indirect evidence	Pensacola, FL, United StatesHQ checked Sep 28, 2026	51-200	168 contacts →
	Indirect evidence “EarthSoft is the recognized leader in providing environmental and geotechnical data management and decision support systems for industrial organizations, government agencies…” Source: RevenueBase Database · checked Sep 28, 2026
9	Bridger Photonics	Indirect evidence	Bozeman, MT, United StatesHQ checked Sep 28, 2026	51-200	164 contacts →
	Indirect evidence “Bridger delivers trusted emissions intelligence that helps energy operators make faster, more confident decisions.” Source: RevenueBase Database · checked Sep 28, 2026
10	Touchstone IQ	Partial evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	51-200	139 contacts →
	Partial evidence “Touchstone IQ is a leading-edge building energy management software & services company.” Source: RevenueBase Database · checked Sep 28, 2026
11	Persefoni	Indirect evidence	Mesa, AZ, United StatesHQ checked Sep 28, 2026	201-500	137 contacts →
	Indirect evidence “Persefoni AI Inc.” Source: RevenueBase Database · checked Sep 28, 2026
12	Pulsora	Indirect evidence	San Mateo, CA, United StatesHQ checked Sep 28, 2026	51-200	98 contacts →
	Indirect 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 28, 2026
13	Locus Technologies	Partial evidence	Mountain View, CA, United StatesHQ checked Sep 28, 2026	51-200	95 contacts →
	Partial 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 28, 2026
14	Gravity	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	51-200	57 contacts →
	Indirect 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 28, 2026
15	Pachama	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	51-200	55 contacts →
	Indirect evidence “Pachama has now been acquired by Carbon Direct.” Source: RevenueBase Database · checked Sep 28, 2026
16	VIM Technologies INC	Partial evidence	Glen Burnie, MD, United StatesHQ checked Sep 28, 2026	11-50	42 contacts →
	Partial evidence “VIM Technologies was founded in February 1992 by engineers with extensive software development experience for programmable logic controls and host computers.” Source: RevenueBase Database · checked Sep 28, 2026
17	Scaler	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 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 28, 2026
18	Watchwire By Tango	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	39 contacts →
	Partial evidence “Tango Energy & Sustainability (fka WatchWire) is a sustainability and energy management software-as-a-service (EMSaaS) provider.” Source: RevenueBase Database · checked Sep 28, 2026
19	Onlygood Ogfpl	Indirect evidence	Westford, MA, United StatesHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “Onlygood is a cloud-based technology platform for companies to monitor and reduce their carbon footprint.” Source: RevenueBase Database · checked Sep 28, 2026
20	Encino Environmental Services, LLC	Indirect evidence	Katy, TX, United StatesHQ checked Sep 28, 2026	51-200	36 contacts →
	Indirect evidence “Formed in 2010 and headquartered in Houston, Texas, Encino Environmental Services, LLC is an emissions testing, monitoring, and compliance support firm serving critical…” Source: RevenueBase Database · checked Sep 28, 2026
21	Glassdome	Partial evidence	Vancouver, WA, United StatesHQ checked Sep 28, 2026	51-200	33 contacts →
	Partial evidence “Glassdome is an industrial software company that believes better data means better decisions.” Source: RevenueBase Database · checked Sep 28, 2026
22	Startex Software	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	30 contacts →
	Partial evidence “StarTex Software provides software solutions including EHS Insight, the easy-to-use, cost effective solution for Environmental, Health & Safety (EHS) Management and Corporate…” Source: RevenueBase Database · checked Sep 28, 2026
23	Pioneer Technologies Corporation	Partial evidence	Olympia, WA, United StatesHQ checked Sep 28, 2026	51-200	27 contacts →
	Partial evidence “PIONEER Technologies Corporation (PIONEER) provides environmental consulting and software design and development solutions to our customers all over the world.” Source: RevenueBase Database · checked Sep 28, 2026
24	Onboard Dynamics	Strong evidence	Bend, OR, United StatesHQ checked Sep 28, 2026	11-50	27 contacts →
	Strong evidence “The goal of Onboard Dynamics is to support the natural gas ecosystem in reducing global greenhouse gas (GHG) emissions safely and reliably through our innovative and practical…” Source: RevenueBase Database · checked Sep 28, 2026
25	Calico Energy	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “Calico Energy is a mission driven company focused on scaling energy solutions and decarbonization.We think outside of the box and work to make the world a better place.” Source: RevenueBase Database · checked Sep 28, 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: greenhouse gas inventory software companies. 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 greenhouse gas inventory software companies.
Partial evidence: Its own public description names part of greenhouse gas inventory software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name greenhouse gas inventory software companies. 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 189 greenhouse gas inventory software companies based in the United States

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Greenhouse gas inventory software companies based in the United States at a glance

As of Sep 28, 2026

50.6%Verified-email coverage

28.9Average contacts per company

1-10Median size (employees)

6.9%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

101

11-50

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 189 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 greenhouse gas inventory software 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 “greenhouse gas inventory software 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 greenhouse gas inventory software 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 greenhouse gas inventory software 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, 2,770 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 28, 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 greenhouse gas inventory software 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 greenhouse gas inventory software companies are there based in the United States?

RevenueBase identified 189 greenhouse gas inventory software 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?

Sphera, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most greenhouse gas inventory software companies?

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

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 2,770 verified decision-maker contacts tracked across these 189 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 28, 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.