Company lists · Data refreshed September 2026

Top 25 Energy efficiency software companies based in the United States

Name: Energy efficiency 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 2, 2026 1,017 companies tracked

RevenueBase identified 1,017 energy efficiency software companies headquartered in the United States as of September 2026 and tracks 21,033 professional contacts across them, including 8,502 with verified work emails and 8,265 with mobile numbers. New York is the largest hub.

This list covers energy efficiency 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

1,017Companies

21,033Contacts tracked

8,502Verified emails

8,265Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest energy efficiency software companies based in the United States

Ranked by team size

Top 25 of 1,017 energy efficiency software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to energy efficiency 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	GE Digital	Strong evidence	San Ramon, CA, United States	1,001-5,000	1,773 contacts →
	Strong evidence “At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.” Source: RevenueBase Database · checked Sep 2, 2026
2	Arcadia	Partial evidence	Washington, DC, United States	501-1,000	869 contacts →
	Partial evidence “Arcadia is the global utility data and energy solutions platform.” Source: RevenueBase Database · checked Sep 2, 2026
3	Climatec, LLC	Partial evidence	Phoenix, AZ, United States	1,001-5,000	865 contacts →
	Partial evidence “Climatec has been making buildings safer, more comfortable and efficient for over 40 years.” Source: RevenueBase Database · checked Sep 2, 2026
4	Albireo Energy	Partial evidence	New York, United States	1,001-5,000	685 contacts →
	Partial evidence “Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Source: RevenueBase Database · checked Sep 2, 2026
5	Palmetto	Partial evidence	Charlotte, NC, United States	201-500	533 contacts →
	Partial evidence “Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” Source: RevenueBase Database · checked Sep 2, 2026
6	Budderfly	Strong evidence	Shelton, CT, United States	201-500	359 contacts →
	Strong evidence “Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.” Source: RevenueBase Database · checked Sep 2, 2026
7	PCI Energy Solutions	Indirect evidence	Norman, OK, United States	201-500	345 contacts →
	Indirect evidence “PCIEnergySolutions is a tight-knit team of 300 diligent product experts, engineers, business analysts, and more.” Source: RevenueBase Database · checked Sep 2, 2026
8	Cascade Energy	Partial evidence	Burlington, VT, United States	201-500	290 contacts →
	Partial evidence “At Cascade Energy, we believe in better.” Source: RevenueBase Database · checked Sep 2, 2026
9	Electro Industries Gaugetech	Partial evidence	Westbury, NY, United States	201-500	242 contacts →
	Partial evidence “For over 45 years, Electro Industries/GaugeTech has been a leader in innovation and technological advancements in the areas of energy management and power monitoring.” Source: RevenueBase Database · checked Sep 2, 2026
10	Mantis Innovation	Partial evidence	Waco, TX, United States	201-500	231 contacts →
	Partial evidence “At Mantis Innovation, our experts provide data-driven, consultative services designed to optimize your facility, sustainability, and energy management strategies, while ultimately…” Source: RevenueBase Database · checked Sep 2, 2026
11	HOC INC	Strong evidence	New York, NY, United States	51-200	217 contacts →
	Strong evidence “HOC, founded in 2001, specializes in building software for the energy trading and financial services sectors.” Source: RevenueBase Database · checked Sep 2, 2026
12	Dalkia Energy Solutions	Strong evidence	Beverly, MA, United States	201-500	212 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 2, 2026
13	Energy Management Collaborative EMC	Strong evidence	Minneapolis, MN, United States	201-500	197 contacts →
	Strong evidence “EMC manages and scales turnkey energy efficiency solutions for Fortune 500 clients across their North American portfolios.” Source: RevenueBase Database · checked Sep 2, 2026
14	Clean Power Research	Strong evidence	Napa, CA, United States	51-200	130 contacts →
	Strong evidence “Our cloud software services are powering the energy transformation by enabling utilities to engage customers about their energy options, automate DER program administration and…” Source: RevenueBase Database · checked Sep 2, 2026
15	Synergy Companies	Strong evidence	Fresno, CA, United States	501-1,000	124 contacts →
	Strong evidence “Synergy Companies is the largest energy services companies in California and provides a comprehensive approach to energy efficiency and environmental solutions in both the…” Source: RevenueBase Database · checked Sep 2, 2026
16	Melink Corporation	Strong evidence	Milford, OH, United States	51-200	121 contacts →
	Strong evidence “We are a global provider of energy efficiency solutions for commercial buildings with five business offerings: HVAC Testing, Adjusting & Balancing, Intelli-Hood® Kitchen…” Source: RevenueBase Database · checked Sep 2, 2026
17	Michaels Energy- An Inc. 5000 Company	Partial evidence	La Crosse, WI, United States	51-200	120 contacts →
	Partial evidence “Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.” Source: RevenueBase Database · checked Sep 2, 2026
18	PSD	Strong evidence	Ithaca, NY, United States	51-200	114 contacts →
	Strong evidence “PSD is an energy efficiency services and technology company.” Source: RevenueBase Database · checked Sep 2, 2026
19	Clockworks Analytics	Indirect evidence	Boston, MA, United States	51-200	106 contacts →
	Indirect evidence “Clockworks Analytics is an essential smart building intelligence platform that helps facilities professionals and their service providers gain visibility into the biggest issues…” Source: RevenueBase Database · checked Sep 2, 2026
20	Resource Data Management	Partial evidence	New Hope, MN, United States	51-200	87 contacts →
	Partial evidence “We help businesses optimise their HVACR and BMS control systems, reduce energy use, and ensure food safety compliance.” Source: RevenueBase Database · checked Sep 2, 2026
21	Nexrev	Partial evidence	Philadelphia, PA, United States	201-500	87 contacts →
	Partial evidence “NexRev was established in 1994 as a services and technology provider of Energy Management Systems.” Source: RevenueBase Database · checked Sep 2, 2026
22	Optimum Energy	Strong evidence	Baton Rouge, LA, United States	51-200	86 contacts →
	Strong evidence “With 20 years of experience and 300+ plants and institutions served globally, nobody understands energy infrastructure, efficiency, and financial opportunity quite like Optimum…” Source: RevenueBase Database · checked Sep 2, 2026
23	NODA	Indirect evidence	Washington Dc, DC, United States	51-200	82 contacts →
	Indirect evidence “Noda is agentic AI for building operations – always-on AI that does the work of an engineering team quickly, accurately, and reliably, across every asset in a portfolio, 24/7.” Source: RevenueBase Database · checked Sep 2, 2026
24	ABM Systems, INC	Indirect evidence	Floral Park, NY, United States	51-200	80 contacts →
	Indirect evidence “ABM Systems has been a trusted partner for facility managers, consulting engineers, and mechanical contractors in the NYC Metropolitan Area since 1995.” Source: RevenueBase Database · checked Sep 2, 2026
25	PC Automated Controls, INC	Indirect evidence	El Paso, TX, United States	51-200	75 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 2, 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: energy efficiency 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 energy efficiency software companies.
Partial evidence: Its own public description names part of energy efficiency software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy efficiency 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 1,017 energy efficiency software companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 8,502 reachable decision-makers.

Free signup · no credit card

View the full list →

Energy efficiency software companies based in the United States at a glance

As of Sep 2, 2026

40.4%Verified-email coverage

39.3%Mobile-number coverage

20.7Average contacts per company

11-50Median size (employees)

3.8%Largest-city concentration · New York

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

445

11-50

392

51-200

130

201-500

501-1,000

1,001-5,000

10001+

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 energy efficiency 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 “energy efficiency 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 energy efficiency 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 energy efficiency 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, 8,502 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 2, 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.

Energy efficiency software companies by metro

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 energy efficiency 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 energy efficiency software companies are there based in the United States?

RevenueBase identified 1,017 energy efficiency 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?

GE Digital, headquartered in San Ramon, tops this list with the largest team on record.

Which city has the most energy efficiency software companies?

New York leads with 39 headquartered companies, followed by Houston (25) and San Francisco (22).

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 8,502 verified decision-maker contacts tracked across these 1,017 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 2, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,017 energy efficiency software companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Energy efficiency software companies by geography

Browse the directory

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.