Company lists · Data refreshed September 2026

Top 25 Sustainable energy consultants based in Austin, United States

Name: Sustainable energy consultants based in Austin, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 62 companies tracked

RevenueBase identified 62 sustainable energy consultants headquartered in Austin, United States as of September 2026 and tracks 3,721 professional contacts across them, including 1,269 with verified work emails. Houston is the largest hub.

This list covers sustainable energy consultants headquartered in Austin, 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 18, 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 18, 2026 86% judged on-target in blind review

62Companies

3,721Contacts tracked

1,269Verified emails

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The 25 largest sustainable energy consultants based in Austin, United States

Ranked by team size

Top 25 of 62 sustainable energy consultants based in Austin, United States, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable energy consultants: 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	Clearesult	Strong evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1,001-5,000	2,121 contacts →
	Strong evidence “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Source: RevenueBase Database · checked Sep 18, 2026
2	OLA	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	n/a	1,145 contacts →
	Partial 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 18, 2026
3	Carbonbetter	Indirect evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	11-50	58 contacts →
	Indirect evidence “We believe that what’s good for our planet is good for business.” Source: RevenueBase Database · checked Sep 18, 2026
4	Lighthouse Solar Austin	Indirect evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	11-50	41 contacts →
	Indirect evidence “Our vision is to empower and enlighten residential and commercial customers in Texas.” Source: RevenueBase Database · checked Sep 18, 2026
5	THG Energy Solutions	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	11-50	33 contacts →
	Partial evidence “Trusted by more than utility accounts across North America and backed by proven enterprise integrations, THG Energy Solutions helps commercial and industrial organizations…” Source: RevenueBase Database · checked Sep 18, 2026
6	Dastur Energy	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	11-50	22 contacts →
	Partial evidence “Dastur Energy is an Austin, Texas based energy technology company, that is leading the way in the field of clean energy, with a strong track record of pioneering innovative…” Source: RevenueBase Database · checked Sep 18, 2026
7	Axis Solar	Indirect evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	11-50	21 contacts →
	Indirect evidence “Axis Solar is your trusted partner for engineering, procurement, and construction of commercial solar systems.” Source: RevenueBase Database · checked Sep 18, 2026
8	The Power Company USA LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	11-50	20 contacts →
	Partial evidence “The Power Company is a professional energy consulting firm whose mission is to reduce our clients' energy expenses.” Source: RevenueBase Database · checked Sep 18, 2026
9	Longevity Partners USA	Strong evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	11-50	16 contacts →
	Strong evidence “Longevity Partners is a multidisciplinary energy and sustainability consultancy and investment business.” Source: RevenueBase Database · checked Sep 18, 2026
10	Blue Ocean Energy	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	13 contacts →
	Partial evidence “Blue Ocean Energy is an energy consulting firm located in Austin, Texas.” Source: RevenueBase Database · checked Sep 18, 2026
11	Industrial SUN	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	11-50	8 contacts →
	Partial evidence “Industrial Sun is a renewable energy and storage developer, purpose-built to serve industrial and high energy demand customers, including refineries, pumping and compression…” Source: RevenueBase Database · checked Sep 18, 2026
12	AB Power Advisors, A Priority Power Company	Indirect evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	6 contacts →
	Indirect evidence “In 2018, Co-Founders Ryan Aldridge and Matthew Berend established AB Power Advisors, a premier advisory services firm that specializes in delivering customized solutions to the…” Source: RevenueBase Database · checked Sep 18, 2026
13	Energy Bees	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	6 contacts →
	Partial evidence “Energy Bees is a women-owned energy consulting firm helping clients make smarter, data-driven decisions that improve financial performance, compliance, and long-term asset value.” Source: RevenueBase Database · checked Sep 18, 2026
14	Ideasmiths LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	5 contacts →
	Partial evidence “IdeaSmiths has a deep and broad understanding of energy systems.” Source: RevenueBase Database · checked Sep 18, 2026
15	Creation Energy LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	5 contacts →
	Partial evidence “The future of energy does not look like energy today.” Source: RevenueBase Database · checked Sep 18, 2026
16	Divergent Solar	Strong evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	5 contacts →
	Strong evidence “Divergent Solar is a top tier brokerage that helps homeowners and businesses save thousands by switching to sustainable energy.” Source: RevenueBase Database · checked Sep 18, 2026
17	Quotenergy, LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	11-50	5 contacts →
	Partial evidence “QuotEnergy Advisors is an energy management firm that continually delivers savings opportunities for clients in the commercial, industrial, and government sectors.” Source: RevenueBase Database · checked Sep 18, 2026
18	Affinity Engineering	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	5 contacts →
	Partial evidence “Affinity Engineering provides energy engineering and consulting services to regulated utilities and large energy users.” Source: RevenueBase Database · checked Sep 18, 2026
19	Osiyo Renewables LLC	Partial evidence	Austin, United StatesHQ checked Sep 18, 2026	1-10	4 contacts →
	Partial evidence “Developing and investing in renewable energy projects across the Americas; serving corporate and institutional clients with customized, efficient clean energy solutions” Source: RevenueBase Database · checked Sep 18, 2026
20	Excellent For Energy Consultancy	Strong evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	3 contacts →
	Strong evidence “Excellent for Energy Consultancy is a US company located in Austin, Texas provides consulting energy services, power system studies, industrial solutions and advanced training.” Source: RevenueBase Database · checked Sep 18, 2026
21	Outlier Energy	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	2 contacts →
	Partial evidence “Outlier Energy develops firm and carbon-free power generation resources for commercial and industrial customers who insist on reliable power and zero carbon.” Source: RevenueBase Database · checked Sep 18, 2026
22	Executive Advisory Services Energy	Partial evidence	Austin, United StatesHQ checked Sep 18, 2026	1-10	1 contacts →
	Partial evidence “We offer leadership level consulting services in Business Strategy along with services in the Energy Industry spanning Energy Policy, Electric Utility Operations, Electric Market…” Source: RevenueBase Database · checked Sep 18, 2026
23	M3ridian	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	1 contacts →
	Partial evidence “M3ridian provides purpose driven project management for owners and developers across major industries including renewable energy, heavy civil infrastructure, power transmission…” Source: RevenueBase Database · checked Sep 18, 2026
24	Power Forward, LLC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	1 contacts →
	Indirect evidence “Power Forward is an engineering firm founded on the principle that those who came before us have had a powerful impact on our world today.” Source: RevenueBase Database · checked Sep 18, 2026
25	Acros Energy	Partial evidence	Austin, TX, United StatesHQ checked Sep 18, 2026	1-10	1 contacts →
	Partial evidence “On the path toward a future powered by renewable energies, we strive to provide our clients with exceptional engineering services for their projects.” Source: RevenueBase Database · checked Sep 18, 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: sustainable energy consultants. 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 sustainable energy consultants.
Partial evidence: Its own public description names part of sustainable energy consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable energy consultants. 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 62 sustainable energy consultants based in Austin, United States

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Sustainable energy consultants based in Austin, United States at a glance

As of Sep 18, 2026

34.1%Verified-email coverage

60.0Average contacts per company

1-10Median size (employees)

280.6%Largest-city concentration · Houston

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Austin, so it is reported there. Company counts and contact totals on this page are exact for Austin, over 62 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 sustainable energy consultants, 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 Austin, United States whose own description of what they do matches “sustainable energy consultants”. 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 sustainable energy consultants), 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 sustainable energy consultants, and records with no verified work email. Companies headquartered outside Austin 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, 1,269 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 18, 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.

Sustainable energy consultants by metro in the United States

Sustainable energy consultants in Houston174
Sustainable energy consultants in New York134
Sustainable energy consultants in Chicago73
Sustainable energy consultants in Dallas66
Sustainable energy consultants in Denver64
Sustainable energy consultants in Austin62
Sustainable energy consultants in Atlanta52
Sustainable energy consultants in San Diego51
Sustainable energy consultants in Los Angeles50
Sustainable energy consultants in Washington49
Sustainable energy consultants in Boston42
Sustainable energy consultants in San Francisco39
Sustainable energy consultants in Portland36
Sustainable energy consultants in Las Vegas33
Sustainable energy consultants in Phoenix30
Sustainable energy consultants in Charlotte29
Sustainable energy consultants in Orlando26
Sustainable energy consultants in Seattle26
Sustainable energy consultants in Tampa26
Sustainable energy consultants in Miami25

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 sustainable energy consultants, 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 sustainable energy consultants are there based in Austin, United States?

RevenueBase identified 62 sustainable energy consultants headquartered in Austin, 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?

Clearesult, headquartered in Austin, tops this list with the largest team on record.

Which city has the most sustainable energy consultants?

Houston leads with 174 headquartered companies, followed by New York (134) and Chicago (73).

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 1,269 verified decision-maker contacts tracked across these 62 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 18, 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.