Company lists · Data refreshed September 2026

Top 22 Sustainable energy consulting firms based in Atlanta, United States

RevenueBase identified 58 sustainable energy consulting firms headquartered in Atlanta, United States as of September 2026 and tracks 527 professional contacts across them, including 153 with verified work emails. New York is the largest hub.

This list covers sustainable energy consulting firms headquartered in Atlanta, 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 21, 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 21, 2026 86% judged on-target in blind review
58Companies
527Contacts tracked
153Verified emails
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The 22 largest sustainable energy consulting firms based in Atlanta, United States

Ranked by team size
Top 22 of 58 sustainable energy consulting firms based in Atlanta, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable energy consulting firms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202651-20059 contacts →

Partial evidence

“At Epsten Group, we pride ourselves on being a pioneer for sustainability in the built environment.”

Source: RevenueBase Database · checked Sep 21, 2026
2Strong evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-5052 contacts →

Strong evidence

Sustainable Investment Group, LLC (SIG) is a full-service sustainable building consulting firm that provides environmentally focused solutions to design, construction, and real…”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-5043 contacts →

Indirect evidence

“At Spectreco, our ethos revolves around simplicity, speed, sprint, and trust.”

Source: RevenueBase Database · checked Sep 21, 2026
4Strong evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-5040 contacts →

Strong evidence

“Ecoworks Studio is an internationally recognized firm in the practice of integrated design principles, sustainability and wellness consulting services.”

Source: RevenueBase Database · checked Sep 21, 2026
5Strong evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-5018 contacts →

Strong evidence

“Servidyne® provides energy, sustainability and wellness consulting in the commercial and institutional building sector.”

Source: RevenueBase Database · checked Sep 21, 2026
6Strong evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-5014 contacts →

Strong evidence

“We are an Atlanta-based energy research and consulting NGO equipped with sophisticated analytical technologies and deep industry knowledge in the clean energy space.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-5010 contacts →

Partial evidence

“We are passionate about reducing energy usage and, in turn, saving money for our clients - with little to no capital funding.”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-508 contacts →

Partial evidence

“Based in Atlanta, Georgia and founded in 2008, The Pendleton Group is a trusted name in economic, community and workforce development consulting, strategic planning and public…”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-108 contacts →

Partial evidence

“Commissioning & Green Building Solutions, Inc.(CxGBS®) is a trusted professional consultancy delivering tailored solutions to improve building performance, energy efficiency, and…”

Source: RevenueBase Database · checked Sep 21, 2026
10Strong evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-105 contacts →

Strong evidence

“ProsumerGrid is an award-winning startup company with the vision to optimize the world’s energy resources in order to contribute to energy sustainability, decarbonization…”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-103 contacts →

Partial evidence

“With more than 25+ years of experience in consulting, we have curated a team of professionals and certified experts that enable us to provide touch-tier services to our clients.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-502 contacts →

Indirect evidence

“S.”

Source: RevenueBase Database · checked Sep 21, 2026
13Strong evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202651-2002 contacts →

Strong evidence

“Headquartered in Atlanta, Georgia, TDIR Inc and a satellite office in Columbia South Carolina is a leading provider of sustainable energy solutions in North America.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-102 contacts →

Indirect evidence

“At Ross-Bain Green Building (RBGB), we take pride in maximizing a building’s performance at any stage of a building’s life, be it concept, design, construction, lifelong…”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“Baker Engineering is a full-service sustainable building engineering firm that provides engineering solutions for new and existing buildings.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-501 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202611-501 contacts →

Partial evidence

“SmartURBuild is a sustainability management solutions provider with razor focus on “Value Engineering”, “Net Zero Solutions”, “Digital Twin Solutions” & Carbon Footprint…”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“Renewable Energy.”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“Environmental Management consulting for commercial projects.”

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“We help equip your home, business or facility with a renewable energy source that uses proven solar, wind or micro hydro technology to help you meet your carbon neutral goals with…”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“Welcome to Clean Energy Consultants!”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“Piedmont EP's mission is to guide companies with eco-conscious missions towards creating, building, & optimizing strategies & tactics that promotes rapid & sustainable growth, so…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 22 of 58 sustainable energy consulting firms based in Atlanta, United States

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Sustainable energy consulting firms based in Atlanta, United States at a glance

As of Sep 21, 2026
29.0%Verified-email coverage
9.1Average contacts per company
1-10Median size (employees)
289.7%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
40
11-50
13
51-200
5

Email recency for this list is measured across the whole United States list rather than for Atlanta, so it is reported there. Company counts and contact totals on this page are exact for Atlanta, over 58 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 consulting firms, 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 Atlanta, United States whose own description of what they do matches “sustainable energy consulting firms”. 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 consulting firms), 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 consulting firms, and records with no verified work email. Companies headquartered outside Atlanta 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, 153 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 21, 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 sustainable energy consulting firms, 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 consulting firms are there based in Atlanta, United States?

RevenueBase identified 58 sustainable energy consulting firms headquartered in Atlanta, 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?

Epsten Group, A Salas O'brien Company, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most sustainable energy consulting firms?

New York leads with 168 headquartered companies, followed by Houston (165) and Chicago (91).

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 153 verified decision-maker contacts tracked across these 58 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 21, 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.