Company lists · Data refreshed September 2026

Top 25 Residential energy auditors based in the United States

Name: Residential energy auditors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 382 companies tracked

RevenueBase identified 382 residential energy auditors headquartered in the United States as of September 2026 and tracks 2,925 professional contacts across them, including 798 with verified work emails. Austin is the largest hub.

This list covers residential energy auditors 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 17, 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 17, 2026 86% judged on-target in blind review

382Companies

2,925Contacts tracked

798Verified emails

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The 25 largest residential energy auditors based in the United States

Ranked by team size

Top 25 of 382 residential energy auditors based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to residential energy auditors: 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	Homeworks Energy, INC	Partial evidence	Medford, MA, United StatesHQ checked Sep 17, 2026	201-500	356 contacts →
	Partial evidence “At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.” Source: RevenueBase Database · checked Sep 17, 2026
2	Energy 350, INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	51-200	60 contacts →
	Partial evidence “Energy 350 takes pride in performing high quality energy studies and energy efficiency related services for end users as well as program administrators.” Source: RevenueBase Database · checked Sep 17, 2026
3	Staples Energy	Strong evidence	Pewaukee, WI, United StatesHQ checked Sep 17, 2026	51-200	59 contacts →
	Strong evidence “Staples Energy helps commercial and residential customers, places of worship, and public facilities save hundreds of millions of kilowatt hours of energy.” Source: RevenueBase Database · checked Sep 17, 2026
4	Neeeco	Partial evidence	Wilmington, MA, United StatesHQ checked Sep 17, 2026	51-200	52 contacts →
	Partial evidence “helps Massachusetts residents reduce energy consumption and costs, and increase comfort in their homes.” Source: RevenueBase Database · checked Sep 17, 2026
5	Resnet	Strong evidence	Sacramento, CA, United StatesHQ checked Sep 17, 2026	11-50	46 contacts →
	Strong evidence “The Residential Energy Services Network (RESNET) was founded in 1995 as an independent, non-profit organization to help homeowners reduce the cost of their utility bills by making…” Source: RevenueBase Database · checked Sep 17, 2026
6	Brower Mechanical	Partial evidence	Rocklin, CA, United StatesHQ checked Sep 17, 2026	51-200	44 contacts →
	Partial evidence “We provide energy solutions for homes and businesses.” Source: RevenueBase Database · checked Sep 17, 2026
7	Quality Conservation Services	Indirect evidence	Montclair, CA, United StatesHQ checked Sep 17, 2026	201-500	42 contacts →
	Indirect evidence “HVAC, Plumbing, Insulation, Weatherization.” Source: RevenueBase Database · checked Sep 17, 2026
8	Edge Energy	Partial evidence	Beltsville, MD, United StatesHQ checked Sep 17, 2026	51-200	38 contacts →
	Partial evidence “EDGE Energy is a vertically integrated solar, home performance, and electrification company serving homeowners across the Mid-Atlantic.” Source: RevenueBase Database · checked Sep 17, 2026
9	15 Lightyears	Strong evidence	Longwood, FL, United StatesHQ checked Sep 17, 2026	11-50	38 contacts →
	Strong evidence “Headquartered in Orlando, we are the largest Florida-based energy performance and testing contractor serving residential, multifamily, and commercial projects.” Source: RevenueBase Database · checked Sep 17, 2026
10	Energy Solutions Direct	Partial evidence	Clearwater, FL, United StatesHQ checked Sep 17, 2026	11-50	38 contacts →
	Partial evidence “Evaluating immediate and long-term solutions needed to make your home more energy efficient will save you significant money over time.” Source: RevenueBase Database · checked Sep 17, 2026
11	Zero Energy Contracting	Partial evidence	Cerritos, CA, United StatesHQ checked Sep 17, 2026	51-200	37 contacts →
	Partial evidence “Saving energy not only saves you money, but it also helps protect our planet's resources for generations to come.” Source: RevenueBase Database · checked Sep 17, 2026
12	Dr. Energy Saver	Indirect evidence	Seymour, CT, United StatesHQ checked Sep 17, 2026	11-50	32 contacts →
	Indirect evidence “Dr.” Source: RevenueBase Database · checked Sep 17, 2026
13	Tri-State Energy	Partial evidence	New Brunswick, NJ, United StatesHQ checked Sep 17, 2026	11-50	31 contacts →
	Partial evidence “Tri-State Energy (formerly Tri-State Light & Energy) is an engineering firm with over 40 years of experience specializing in energy efficiency consulting and implementation…” Source: RevenueBase Database · checked Sep 17, 2026
14	Vert Energy Group	Partial evidence	Orange, CA, United StatesHQ checked Sep 17, 2026	11-50	30 contacts →
	Partial evidence “Vert Energy Group is a full-service energy efficiency and engineering company that helps building owners and property managers complete Energy Benchmark Compliance, Energy Audits…” Source: RevenueBase Database · checked Sep 17, 2026
15	Greenlink Energy Solutions	Partial evidence	Rockford, IL, United StatesHQ checked Sep 17, 2026	51-200	29 contacts →
	Partial evidence “Greenlink Energy Solutions is headquartered in Rockford, Illinois and serves clients nationwide.” Source: RevenueBase Database · checked Sep 17, 2026
16	Zerodraft	Partial evidence	Syracuse, NY, United StatesHQ checked Sep 17, 2026	11-50	27 contacts →
	Partial evidence “At ZERODRAFT we specialize in cutting edge treatments to improve energy efficiency, lower utility costs, and increase home comfort.” Source: RevenueBase Database · checked Sep 17, 2026
17	Paradigm Energy Services	Indirect evidence	Somerville, MA, United StatesHQ checked Sep 17, 2026	51-200	26 contacts →
	Indirect evidence “We spend 90% of our lives in buildings.” Source: RevenueBase Database · checked Sep 17, 2026
18	PRO Energy Consultants	Partial evidence	Chesterland, OH, United StatesHQ checked Sep 17, 2026	1-10	26 contacts →
	Partial evidence “Pro Energy Consultants’ proven system for conducting energy audits is backed by more than 15 years' experience and more than energy audits.” Source: RevenueBase Database · checked Sep 17, 2026
19	enlight.energy	Indirect evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect evidence “Explore smarter ways to power your home.” Source: RevenueBase Database · checked Sep 17, 2026
20	Burch Energy Services INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	11-50	23 contacts →
	Partial evidence “Burch Energy is a COBID-certified, minority-owned energy engineering firm based in Portland, Oregon.” Source: RevenueBase Database · checked Sep 17, 2026
21	Revise, INC	Partial evidence	Haverhill, MA, United StatesHQ checked Sep 17, 2026	201-500	22 contacts →
	Partial evidence “At Revise, Inc, we are committed to creating energy-efficient homes across Massachusetts through our partnership with the Mass Save® program.” Source: RevenueBase Database · checked Sep 17, 2026
22	Miller Brothers Builders, INC	Partial evidence	Goshen, IN, United StatesHQ checked Sep 17, 2026	11-50	22 contacts →
	Partial evidence “Residential and light Commercial construction in Northern Indiana and Southwest Michigan.” Source: RevenueBase Database · checked Sep 17, 2026
23	Reli Energy Solutions	Indirect evidence	Orem, UT, United StatesHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect evidence “The world is changing as the human race carbon footprint is getting bigger.” Source: RevenueBase Database · checked Sep 17, 2026
24	Energy Resources USA	Partial evidence	Thomaston, CT, United StatesHQ checked Sep 17, 2026	51-200	21 contacts →
	Partial evidence “Energy Resources USA is a leading provider of energy efficient facility upgrades.” Source: RevenueBase Database · checked Sep 17, 2026
25	Winegard Energy INC	Partial evidence	Chino Hills, United StatesHQ checked Sep 17, 2026	51-200	21 contacts →
	Partial evidence “Winegard Energy, Inc.” Source: RevenueBase Database · checked Sep 17, 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: residential energy auditors. 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 residential energy auditors.
Partial evidence: Its own public description names part of residential energy auditors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name residential energy auditors. 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 382 residential energy auditors based in the United States

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Residential energy auditors based in the United States at a glance

As of Sep 17, 2026

27.3%Verified-email coverage

7.7Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · Austin

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

226

11-50

123

51-200

201-500

501-1,000

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 382 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 residential energy auditors, 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 “residential energy auditors”. 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 residential energy auditors), 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 residential energy auditors, 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, 798 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 17, 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 residential energy auditors, 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 residential energy auditors are there based in the United States?

RevenueBase identified 382 residential energy auditors 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?

Homeworks Energy, INC, headquartered in Medford, tops this list with the largest team on record.

Which city has the most residential energy auditors?

Austin leads with 9 headquartered companies, followed by Denver (8) and New York (5).

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 798 verified decision-maker contacts tracked across these 382 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 17, 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.