Company lists · Data refreshed September 2026

Top 25 Commercial building decarbonization firms based in the United States

RevenueBase identified 1,709 company matches for commercial building decarbonization firms associated with the United States as of September 2026 and tracks 35,903 professional contacts across them, including 16,853 with verified work emails. New York is the largest hub.

This list covers company matches for commercial building decarbonization firms 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 September 16, 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 Sep 16, 2026 How this list was built
1,709Companies
35,903Contacts tracked
16,853Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest commercial building decarbonization firms based in the United States

Ranked by team size
Top 25 of 1,709 company matches for commercial building decarbonization firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 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 matchChicago, WY, United StatesHQ recorded Sep 16, 20261,001-5,0004,156 contacts →

Exact match

“Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2Exact matchSeattle, WA, United StatesHQ recorded Sep 16, 20261,001-5,0002,213 contacts →

Exact match

“We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3Exact matchAustin, TX, United StatesHQ recorded Sep 16, 20261,001-5,0002,121 contacts →

Exact match

“CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4Exact matchFramingham, MA, United StatesHQ recorded Sep 16, 20261,001-5,0001,383 contacts →

Exact match

“Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5Exact matchAustin, TX, United StatesHQ recorded Sep 16, 2026n/a1,145 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6Exact matchOakland, CA, United StatesHQ recorded Sep 16, 2026201-500772 contacts →

Exact match

“Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7Exact matchPortland, OR, United StatesHQ recorded Sep 16, 2026201-500744 contacts →

Exact match

“PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8Exact matchHalf Moon Bay, CA, United StatesHQ recorded Sep 16, 2026501-1,000733 contacts →

Exact match

“Resource Innovations (RI) is an energy transformation firm.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9Exact matchWestborough, MA, United StatesHQ recorded Sep 16, 2026201-500481 contacts →

Exact match

“NORESCO, a part of Carrier Global Corporation, helps customers modernize aging building systems and upgrade energy and water infrastructure to meet evolving demands.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10Exact matchMinneapolis, MN, United StatesHQ recorded Sep 16, 2026501-1,000450 contacts →

Exact match

“SitelogIQ provides design, engineering, and construction management services that help organizations nationwide modernize their facilities and infrastructure.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11Exact matchPhoenix, MO, United StatesHQ recorded Sep 16, 2026501-1,000383 contacts →

Exact match

“Veregy is an award-winning NAESCO-Accredited decarbonization company focusing on accelerating and simplifying the Energy Transition.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12Exact matchIrvine, CA, United StatesHQ recorded Sep 16, 2026201-500383 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13Exact matchLong Beach, CA, United StatesHQ recorded Sep 16, 2026201-500375 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14Exact matchPark Ridge, NJ, United StatesHQ recorded Sep 16, 2026201-500336 contacts →

Exact match

“National Utility Service, Inc.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Sep 16, 2026201-500324 contacts →

Exact match

“3Degrees is a leading global climate solutions provider, pioneer of environmental markets, and Certified B Corporation.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16Exact matchGaithersburg, MD, United StatesHQ recorded Sep 16, 2026201-500323 contacts →

Exact match

“Boland is the leading commercial HVAC systems, services, and building energy solutions provider in the DC metro area.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17Exact matchPortland, OR, United StatesHQ recorded Sep 16, 2026201-500288 contacts →

Exact match

“At Cascade Energy, we believe in better.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18Exact matchBoston, MA, United StatesHQ recorded Sep 16, 2026501-1,000286 contacts →

Exact match

“Vicinity Energy is a leading district energy company that owns and operates the largest portfolio of district energy systems nationwide, providing steam, hot water, and chilled…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Sep 16, 2026201-500233 contacts →

Exact match

“At Mantis Innovation, our experts provide data-driven, consultative services designed to optimize your facility, sustainability, and energy management strategies, while ultimately…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Sep 16, 2026201-500233 contacts →

Exact match

“As of November of 2025, AMA Group has merged with CMTA!”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21Exact matchPalo Alto, CA, United StatesHQ recorded Sep 16, 2026201-500229 contacts →

Exact match

“Allana Buick & Bers, Inc.(ABB) is a leading Architectural Engineering firm specializing in making buildings perform better by making them energy efficient and longer lasting with…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22Exact matchFairfax, VA, United StatesHQ recorded Sep 16, 2026201-500214 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23Exact matchBeverly, MA, United StatesHQ recorded Sep 16, 2026201-500210 contacts →

Exact match

“Dalkia Energy Solutions, a subsidiary of the EDF (Électricité de France) Group, is a national leader in energy efficiency and sustainability for commercial, industrial, and…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Sep 16, 202651-200205 contacts →

Exact match

“Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25Exact matchMinneapolis, MN, United StatesHQ recorded Sep 16, 2026201-500193 contacts →

Exact match

“EMC manages and scales turnkey energy efficiency solutions for Fortune 500 clients across their North American portfolios.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

Showing 25 of 1,709 commercial building decarbonization firms based in the United States

See the full list, filter by size, metro and specialty, and access 16,853 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Commercial building decarbonization firms based in the United States at a glance

As of Sep 16, 2026
46.9%Verified-email coverage
21.0Average contacts per company
1-10Median size (employees)
5.9%Largest-city concentration · New York
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
958
11-50
543
51-200
152
201-500
36
501-1,000
11
1,001-5,000
6
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 1,709 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 “commercial building decarbonization firms” 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 16,853 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 September 16, 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 “commercial building decarbonization firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial building decarbonization firms are there based in the United States?

RevenueBase identified 1,709 company matches for commercial building decarbonization firms associated with the United States as of September 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?

Sargent & Lundy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most commercial building decarbonization firms?

New York leads with 100 company records, followed by Houston (41) and Chicago (35).

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 16,853 professional contacts with verified work emails tracked across these 1,709 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 September 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,709 commercial building decarbonization firms based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.