Company lists · Data refreshed September 2026

Top 25 Sustainability consulting software platforms based in the United States

RevenueBase identified 1,903 sustainability consulting software platforms headquartered in the United States as of September 2026 and tracks 27,752 professional contacts across them, including 11,360 with verified work emails. New York is the largest hub.

This list covers sustainability consulting software 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 29, 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 29, 2026 86% judged on-target in blind review
1,903Companies
27,752Contacts tracked
11,360Verified emails
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The 25 largest sustainability consulting software platforms based in the United States

Ranked by team size
Top 25 of 1,903 sustainability consulting software platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability consulting software 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePhoenix, AZ, United StatesHQ checked Sep 29, 20261,001-5,0001,629 contacts →

Partial evidence

“Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceChicago, IL, United StatesHQ checked Sep 29, 20261,001-5,0001,349 contacts →

Indirect evidence

“Sphera creates a safer, more sustainable and productive world.”

Source: RevenueBase Database · checked Sep 29, 2026
3Strong evidenceTempe, AZ, United StatesHQ checked Sep 29, 2026n/a1,201 contacts →

Strong evidence

“ESS is the leading provider of Environmental, Health & Safety (EHS) and Crisis Management sustainability software.”

Source: RevenueBase Database · checked Sep 29, 2026
4Strong evidenceAustin, TX, United StatesHQ checked Sep 29, 2026n/a1,145 contacts →

Strong evidence

“OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceSt. Paul, MN, United StatesHQ checked Sep 29, 20261,001-5,000658 contacts →

Partial evidence

“Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…”

Source: RevenueBase Database · checked Sep 29, 2026
6Strong evidenceMason, OH, United StatesHQ checked Sep 29, 2026501-1,000626 contacts →

Strong evidence

“Benchmark Gensuite delivers AI-forward EHS, Sustainability, Quality, and Operational Risk software that helps global enterprises manage risk, ensure compliance, and drive safer…”

Source: RevenueBase Database · checked Sep 29, 2026
7Strong evidenceChicago, IL, United StatesHQ checked Sep 29, 2026501-1,000568 contacts →

Strong evidence

“VelocityEHS is the global leader in EHS & Sustainability software, pioneering human-centered AI to make workplaces safer, faster.”

Source: RevenueBase Database · checked Sep 29, 2026
8Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026201-500529 contacts →

Strong evidence

“Watershed is the enterprise sustainability platform.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceArlington, VA, United StatesHQ checked Sep 29, 2026201-500474 contacts →

Partial evidence

“At Enhesa we empower the world’s largest businesses to achieve compliance, manage risk, and drive sustainability with clear, actionable insights.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceWilmington, DE, United StatesHQ checked Sep 29, 202610001+470 contacts →

Indirect evidence

“We’re helping companies in every industry, in every corner of the globe make real progress.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceIrvine, CA, United StatesHQ checked Sep 29, 2026201-500383 contacts →

Indirect evidence

“We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceLong Beach, CA, United StatesHQ checked Sep 29, 2026201-500375 contacts →

Indirect evidence

“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidencePark Ridge, NJ, United StatesHQ checked Sep 29, 2026201-500336 contacts →

Indirect evidence

“National Utility Service, Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500305 contacts →

Partial 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 29, 2026
15Strong evidenceGainesville, FL, United StatesHQ checked Sep 29, 2026201-500305 contacts →

Strong evidence

“Environmental Consulting & Technology, Inc.(ECT) is a multi-disciplinary environmental and sustainability consulting firm delivering strategy, permitting, design, and management…”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidencePortland, OR, United StatesHQ checked Sep 29, 2026201-500288 contacts →

Indirect evidence

“At Cascade Energy, we believe in better.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceLancaster, NY, United StatesHQ checked Sep 29, 20265,001-10,000278 contacts →

Indirect evidence

“E&E is now WSP USA.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceAustin, CA, United StatesHQ checked Sep 29, 2026201-500275 contacts →

Indirect evidence

“The world runs on power.”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceFairfax, VA, United StatesHQ checked Sep 29, 2026201-500214 contacts →

Partial evidence

“PEG presents a comprehensive capacity for the evaluation and understanding of a broad base of energy and environmental sustainability related programs, policies and initiatives.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceFairfax, VA, United StatesHQ checked Sep 29, 202651-200192 contacts →

Indirect evidence

“Plateau Grp provides innovative and agile IT solutions to customer challenges.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceDallas, TX, United StatesHQ checked Sep 29, 2026201-500190 contacts →

Indirect evidence

“At Cenergistic, energy conservation starts with people.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceHalf Moon Bay, CA, United StatesHQ checked Sep 29, 2026201-500183 contacts →

Partial evidence

“Resource Innovations now combined with Nexant is a substantially woman-owned, woman-led energy consulting firm dedicated to creating equal access to clean resources through…”

Source: RevenueBase Database · checked Sep 29, 2026
23Strong evidenceChicago, IL, United StatesHQ checked Sep 29, 202651-200183 contacts →

Strong evidence

“SUMAC is an architecture, engineering, and consulting firm that promotes sustainability as the key element to increasing the profitability of our clients and partners.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceAlpharetta, GA, United StatesHQ checked Sep 29, 2026201-500164 contacts →

Partial evidence

“IsoMetrix is a global leader in integrated risk management software, helping organizations connect ESG, EHS, and GRC into a single, intelligent system.”

Source: RevenueBase Database · checked Sep 29, 2026
25Strong evidenceIndianapolis, IN, United StatesHQ checked Sep 29, 202651-200152 contacts →

Strong evidence

“Founded in 1988, KERAMIDA is a multidisciplinary Sustainability, EHS & Engineering consulting firm grounded in evidence-based research and development.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 1,903 sustainability consulting software platforms based in the United States

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Sustainability consulting software platforms based in the United States at a glance

As of Sep 29, 2026
40.9%Verified-email coverage
14.6Average contacts per company
1-10Median size (employees)
8.5%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,346
11-50
404
51-200
108
201-500
25
501-1,000
3
1,001-5,000
12
5,001-10,000
1
10001+
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 1,903 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 sustainability consulting software 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 “sustainability consulting software 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 sustainability consulting software 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 sustainability consulting software 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, 11,360 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 29, 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 sustainability consulting software 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 sustainability consulting software platforms are there based in the United States?

RevenueBase identified 1,903 sustainability consulting software 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?

Swca Environmental Consultants, headquartered in Phoenix, tops this list with the largest team on record.

Which city has the most sustainability consulting software platforms?

New York leads with 161 headquartered companies, followed by San Francisco (63) and Chicago (60).

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 11,360 verified decision-maker contacts tracked across these 1,903 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 29, 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.