Company lists · Data refreshed September 2026

Top 22 City sustainability consultants based in Austin, United States

Name: City sustainability 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 19, 2026 33 companies tracked

RevenueBase identified 33 city sustainability consultants headquartered in Austin, United States as of September 2026 and tracks 3,706 professional contacts across them, including 1,352 with verified work emails. New York is the largest hub.

This list covers city sustainability 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 19, 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 19, 2026 86% judged on-target in blind review

33Companies

3,706Contacts tracked

1,352Verified emails

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The 22 largest city sustainability consultants based in Austin, United States

Ranked by team size

Top 22 of 33 city sustainability consultants based in Austin, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to city sustainability 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	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,121 contacts →
	Partial evidence “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Source: RevenueBase Database · checked Sep 19, 2026
2	OLA	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 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 19, 2026
3	TBG Partners	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	51-200	175 contacts →
	Indirect evidence “At TBG Partners, we believe enduring places begin with engaging questions.” Source: RevenueBase Database · checked Sep 19, 2026
4	DWG	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	11-50	44 contacts →
	Indirect evidence “At dwg, we take great pride in seeing our work positively impacting the health and vitality of the communities, environments and economies around them.” Source: RevenueBase Database · checked Sep 19, 2026
5	Hicks & Company Environmental Archeological Consultants	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	11-50	34 contacts →
	Partial evidence “Hicks & Company Environmental/Archeological Consultants is a small, woman-owned environmental consulting firm that provides the full range of environmental management and planning…” Source: RevenueBase Database · checked Sep 19, 2026
6	BAY & Associates, INC	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	11-50	24 contacts →
	Partial evidence “We are engineers who design mechanical, electrical, and plumbing systems with a focus on sustainability and energy efficiency.” Source: RevenueBase Database · checked Sep 19, 2026
7	Lionheart Places LLC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1-10	22 contacts →
	Indirect evidence “Courage to Create the Places We Love.” Source: RevenueBase Database · checked Sep 19, 2026
8	LSI	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “LSI is a full-service design and development consulting firm, offering a comprehensive array of services in Architecture, Landscape Architecture, and Land Planning.” Source: RevenueBase Database · checked Sep 19, 2026
9	Longevity Partners USA	Strong evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	11-50	16 contacts →
	Strong evidence “Longevity Partners is a multidisciplinary energy and sustainability consultancy and investment business.” Source: RevenueBase Database · checked Sep 19, 2026
10	Holder Southwick Architects	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1-10	10 contacts →
	Indirect evidence “Retail design, Architecture, Permitting, Energy Consultation, 3D Visualization, Interior Architecture, Master Planning.” Source: RevenueBase Database · checked Sep 19, 2026
11	Energy Bees	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect 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 19, 2026
12	Gonzalez Shah Smith, INC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “We are an engineering consulting firm that provides professional engineering services in sustainable design, master planning, construction management and commissioning of…” Source: RevenueBase Database · checked Sep 19, 2026
13	Mccann Adams Studio	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Urban design, public space and park design, redevelopment planning, transportation and transit planning and streetscape design, corridor and district planning, community planning” Source: RevenueBase Database · checked Sep 19, 2026
14	Restructure Studio	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Restructure Studio is dedicated to making sustainable design accessible to homeowners as well as building professionals in the residential construction industry.” Source: RevenueBase Database · checked Sep 19, 2026
15	Next Infrastructure	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “By integrating district-scale planning, real estate economics, and owner’s representation, NEXT bridges the gap between infrastructure systems and development viability.” Source: RevenueBase Database · checked Sep 19, 2026
16	Barnes Gromatzky Kosarek Architects	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “BGKA provides a full range of architectural services – planning and urban design, feasibility studies, architectural programming, architectural design, sustainable design, and…” Source: RevenueBase Database · checked Sep 19, 2026
17	Aeterna Environmental LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “An environmental consulting firm dedicated to leveraging government funding for your organization's growth, improve brand image, and enhance sustainability.” Source: RevenueBase Database · checked Sep 19, 2026
18	Quantavision INC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “As a leader in innovative technologies and solutions tackling climate change and enhancing social impact, We oversee the strategic direction of QuantaVision, setting the industry…” Source: RevenueBase Database · checked Sep 19, 2026
19	SEE Solutions, LLC	Indirect evidence	Austin, United StatesHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “SEE Solutions, LLC (SEE) provides environmental compliance and consulting services, with a specialty in air quality.” Source: RevenueBase Database · checked Sep 19, 2026
20	Your Carbon Steps	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1-10	1 contacts →
	Partial evidence “Practical Sustainability: Strategy, Analytics and Reports At Your Carbon Steps, we empower businesses to become champions of sustainability.” Source: RevenueBase Database · checked Sep 19, 2026
21	Executive Advisory Services Energy	Indirect evidence	Austin, United StatesHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect 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 19, 2026
22	Greenthink Consulting, L.L.C	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Greenthink is rethinking environmental consulting.” Source: RevenueBase Database · checked Sep 19, 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: city sustainability 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 city sustainability consultants.
Partial evidence: Its own public description names part of city sustainability consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name city sustainability 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 22 of 33 city sustainability consultants based in Austin, United States

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City sustainability consultants based in Austin, United States at a glance

As of Sep 19, 2026

36.5%Verified-email coverage

112.3Average contacts per company

1-10Median size (employees)

533.3%Largest-city concentration · New York

Sep 19, 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 33 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 city sustainability 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 “city sustainability 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 city sustainability 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 city sustainability 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, 1,352 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 19, 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.

City sustainability consultants by metro in the United States

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 city sustainability 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 city sustainability consultants are there based in Austin, United States?

RevenueBase identified 33 city sustainability 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 city sustainability consultants?

New York leads with 176 headquartered companies, followed by Washington (100) and Chicago (77).

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 1,352 verified decision-maker contacts tracked across these 33 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 19, 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.