Company lists · Data refreshed October 2026

Top 25 Commercial energy efficiency startups based in the United States

Name: Commercial energy efficiency startups based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 1,338 companies tracked

RevenueBase identified 1,338 company matches for commercial energy efficiency startups associated with the United States as of October 2026 and tracks 26,316 professional contacts across them, including 10,688 with verified work emails. New York is the largest hub.

This list covers company matches for commercial energy efficiency startups 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 October 10, 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 Oct 10, 2026 How this list was built

1,338Companies

26,316Contacts tracked

10,688Verified emails

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The 25 largest commercial energy efficiency startups based in the United States

Ranked by team size

Top 25 of 1,338 company matches for commercial energy efficiency startups based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Oct 10, 2026	1,001-5,000	2,206 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 · Oct 10, 2026 · View company records in RevenueBase
2	Climatec, LLC	Exact match	Phoenix, AZ, United StatesHQ recorded Oct 10, 2026	1,001-5,000	666 contacts →
	Exact match “Climatec has been making buildings safer, more comfortable and efficient for over 40 years.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Albireo Energy	Exact match	Edison, NJ, United StatesHQ recorded Oct 10, 2026	1,001-5,000	658 contacts →
	Exact match “Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	Rovisys Building Technologies	Exact match	Aurora, OH, United StatesHQ recorded Oct 10, 2026	1,001-5,000	646 contacts →
	Exact match “As part of the RoviSys family of companies, we deliver vendor independent building automation, electrical power management, facility monitoring, and systems integration solutions…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Palmetto	Exact match	Charlotte, NC, United StatesHQ recorded Oct 10, 2026	201-500	606 contacts →
	Exact match “Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	Budderfly	Exact match	Shelton, CT, United StatesHQ recorded Oct 10, 2026	201-500	380 contacts →
	Exact match “Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Havtech	Exact match	Columbia, MD, United StatesHQ recorded Oct 10, 2026	201-500	342 contacts →
	Exact match “Havtech delivers innovative commercial and industrial HVAC solutions across Maryland, Washington, D.C, Virginia, Pennsylvania, and West Virginia.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Sunbelt Controls	Exact match	Pleasanton, CA, United StatesHQ recorded Oct 10, 2026	201-500	338 contacts →
	Exact match “Sunbelt Controls is a leading full-service building automation contractor for new construction and retrofit projects in the Western United States.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	Boland	Exact match	Gaithersburg, MD, United StatesHQ recorded Oct 10, 2026	201-500	329 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 · Oct 10, 2026 · View company records in RevenueBase
10	ATS Automation, INC	Exact match	Renton, WA, United StatesHQ recorded Oct 10, 2026	201-500	306 contacts →
	Exact match “ATS, established in 1986, specializes in custom engineered and installed Building Automation Systems control solutions for buildings’ mechanical and electrical systems, allowing…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	Lime Energy	Exact match	Newark, NJ, United StatesHQ recorded Oct 10, 2026	201-500	248 contacts →
	Exact match “Lime Energy is building a new energy future.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	Honeywell Building Solutions	Exact match	Las Vegas, NV, United StatesHQ recorded Oct 10, 2026	201-500	219 contacts →
	Exact match “Buildings affect people every moment of every day.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Dalkia Energy Solutions	Exact match	Beverly, MA, United StatesHQ recorded Oct 10, 2026	201-500	213 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 · Oct 10, 2026 · View company records in RevenueBase
14	Energy Management Collaborative EMC	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 10, 2026	201-500	207 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 · Oct 10, 2026 · View company records in RevenueBase
15	KMC Controls	Exact match	New Paris, IN, United StatesHQ recorded Oct 10, 2026	51-200	205 contacts →
	Exact match “KMC Controls is an independent American manufacturer of building automation and IoT solutions for system integrators, system distributors, IT providers, and OEM partners.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	Bright Power	Exact match	New York, NY, United StatesHQ recorded Oct 10, 2026	51-200	201 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 · Oct 10, 2026 · View company records in RevenueBase
17	Fidelity Building Services Group	Exact match	Hunt Valley, MD, United StatesHQ recorded Oct 10, 2026	1,001-5,000	188 contacts →
	Exact match “Fidelity Building Services Group (Fidelity) is one of the nation’s leading providers of HVAC/Mechanical Services, Building Automation, Emergency Power, and Energy Solutions…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Power Takeoff	Exact match	Denver, CO, United StatesHQ recorded Oct 10, 2026	51-200	178 contacts →
	Exact match “Since 2007, Power TakeOff has been the industry leader in the creation of data-first utility products, services and efficiency programs.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19	Mcclure Company	Exact match	Harrisburg, PA, United StatesHQ recorded Oct 10, 2026	201-500	177 contacts →
	Exact match “Headquartered in Harrisburg, Pennsylvania, McClure Company is one of the mid-Atlantic's largest, fully integrated mechanical construction, engineering, maintenance and energy…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	Syserco, INC	Exact match	Fremont, CA, United StatesHQ recorded Oct 10, 2026	51-200	172 contacts →
	Exact match “Syserco is an industry leader delivering Energy Management Solutions and Services to commercial and industrial facilities ranging from K-12 Schools, to High Rises, to…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	The Brewer-Garrett Company	Exact match	Middleburg Heights, OH, United StatesHQ recorded Oct 10, 2026	201-500	158 contacts →
	Exact match “Our promise is innovation that exceeds expectations.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Cm3 Building Solutions	Exact match	Fort Washington, PA, United StatesHQ recorded Oct 10, 2026	201-500	155 contacts →
	Exact match “Founded in 2002, CM3, a member of Daikin, delivers facility modernization solutions to public and private organizations across New Jersey, Pennsylvania, and Delaware.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	Touchstone IQ	Exact match	Denver, CO, United StatesHQ recorded Oct 10, 2026	51-200	151 contacts →
	Exact match “Touchstone IQ is a leading-edge building energy management software & services company.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	RISE	Exact match	Cranston, RI, United StatesHQ recorded Oct 10, 2026	201-500	147 contacts →
	Exact match “RISE is a pioneer in the delivery of turnkey energy-efficiency services for residential, commercial and industrial facilities.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	Control Technologies INC	Exact match	Peabody, MA, United StatesHQ recorded Oct 10, 2026	51-200	134 contacts →
	Exact match “For over 35 years, we have built our success as an industry leader of building management system (BMS) solutions, designing and implementing innovative solutions for controlling…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “commercial energy efficiency startups”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,338 commercial energy efficiency startups based in the United States

See the full list, filter by size, metro and specialty, and access 10,688 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial energy efficiency startups based in the United States at a glance

As of Oct 10, 2026

40.6%Verified-email coverage

19.7Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · New York

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

572

11-50

525

51-200

181

201-500

501-1,000

1,001-5,000

10001+

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 1,338 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 energy efficiency startups” 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 10,688 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 October 10, 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.

Commercial energy efficiency startups by metro

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 energy efficiency startups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial energy efficiency startups are there based in the United States?

RevenueBase identified 1,338 company matches for commercial energy efficiency startups associated with the United States as of October 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?

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

Which city has the most commercial energy efficiency startups?

New York leads with 49 company records, followed by Houston (27) and Chicago (21).

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 10,688 professional contacts with verified work emails tracked across these 1,338 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 October 10, 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 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.