Company lists · Data refreshed September 2026

Top 25 Sustainable design consultants based in Austin, United States

Name: Sustainable design 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 22, 2026 54 companies tracked

RevenueBase identified 54 sustainable design consultants headquartered in Austin, United States as of September 2026 and tracks 1,524 professional contacts across them, including 178 with verified work emails. New York is the largest hub.

This list covers sustainable design 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 22, 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 22, 2026 86% judged on-target in blind review

54Companies

1,524Contacts tracked

178Verified emails

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

Ranked by team size

Top 25 of 54 sustainable design consultants based in Austin, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable design 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	OLA	Strong evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	n/a	1,145 contacts →
	Strong 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 22, 2026
2	Hicks & Company Environmental Archeological Consultants	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 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 22, 2026
3	Baer Engineering & Environmental Consulting, INC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	11-50	32 contacts →
	Indirect evidence “About Baer Engineering and Environmental Consulting, Inc.” Source: RevenueBase Database · checked Sep 22, 2026
4	Malone Wheeler, INC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence “Malone/Wheeler, Inc.” Source: RevenueBase Database · checked Sep 22, 2026
5	BAY & Associates, INC	Strong evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	11-50	24 contacts →
	Strong evidence “We are engineers who design mechanical, electrical, and plumbing systems with a focus on sustainability and energy efficiency.” Source: RevenueBase Database · checked Sep 22, 2026
6	SQ Environmental, LLC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	11-50	21 contacts →
	Indirect evidence “SQ Environmental, LLC (SQE) is a full-service environmental engineering and consulting firm with a team of professionals dedicated to providing high-quality, cost-effective…” Source: RevenueBase Database · checked Sep 22, 2026
7	Environmental Survey Consulting	Indirect evidence	Austin, United StatesHQ checked Sep 22, 2026	11-50	18 contacts →
	Indirect evidence “Environmental Survey Consulting was founded in 1984.” Source: RevenueBase Database · checked Sep 22, 2026
8	LSI	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	11-50	16 contacts →
	Partial 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 22, 2026
9	Aptus Engineering	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “APTUS Engineering is a full service Mechanical, Electrical and Plumbing (MEP) engineering consulting company specializing in Mechanical, Electrical & Plumbing Engineering…” Source: RevenueBase Database · checked Sep 22, 2026
10	Longevity Partners USA	Strong evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	11-50	16 contacts →
	Strong evidence “Longevity Partners is a multidisciplinary energy and sustainability consultancy and investment business.” Source: RevenueBase Database · checked Sep 22, 2026
11	Holder Southwick Architects	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	1-10	10 contacts →
	Partial evidence “Retail design, Architecture, Permitting, Energy Consultation, 3D Visualization, Interior Architecture, Master Planning.” Source: RevenueBase Database · checked Sep 22, 2026
12	Barley Pfeiffer Architecture	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	1-10	8 contacts →
	Partial evidence “BARLEY & PFEIFFER ARCHITECTS has enjoyed success designing a select number of award-winning professional offices, recreational centers, restaurants, educational facilities, and…” Source: RevenueBase Database · checked Sep 22, 2026
13	Gonzalez Shah Smith, INC	Strong evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	11-50	5 contacts →
	Strong 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 22, 2026
14	ORO Design Group	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	1-10	4 contacts →
	Partial evidence “With attention to customer service, we provide consulting and design services to guide clients and design teams through the development of their property.” Source: RevenueBase Database · checked Sep 22, 2026
15	Restructure Studio	Strong evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	1-10	4 contacts →
	Strong 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 22, 2026
16	Barnes Gromatzky Kosarek Architects	Strong evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	11-50	3 contacts →
	Strong 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 22, 2026
17	A.R. Lucas Construction, LLC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	1-10	3 contacts →
	Indirect evidence “A.R.” Source: RevenueBase Database · checked Sep 22, 2026
18	Aeterna Environmental LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 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 22, 2026
19	Arche LLC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	1-10	3 contacts →
	Indirect evidence “ARCHE is an architectural engineering consulting firm.” Source: RevenueBase Database · checked Sep 22, 2026
20	LOW Design Office	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	1-10	3 contacts →
	Partial evidence “Low Design Office is an architecture studio that focuses on something simple: More with less.” Source: RevenueBase Database · checked Sep 22, 2026
21	Quantavision INC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 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 22, 2026
22	SEE Solutions, LLC	Indirect evidence	Austin, United StatesHQ checked Sep 22, 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 22, 2026
23	Plumb Architecture, LLC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	1-10	2 contacts →
	Indirect evidence “Plumb.” Source: RevenueBase Database · checked Sep 22, 2026
24	Ecosafe Spaces, LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	1-10	2 contacts →
	Partial evidence “Healthy, High-Performance Design+Build firm and General Contractor.” Source: RevenueBase Database · checked Sep 22, 2026
25	Nanabode	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	1-10	2 contacts →
	Partial evidence “We sell architectural plans for small houses to be used as accessory dwelling units (ADUs), cabins and small residences focusing on sustainability and solar powered homes.” Source: RevenueBase Database · checked Sep 22, 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 design 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 design consultants.
Partial evidence: Its own public description names part of sustainable design consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable design 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 54 sustainable design consultants based in Austin, United States

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

As of Sep 22, 2026

11.7%Verified-email coverage

28.2Average contacts per company

1-10Median size (employees)

472.2%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 54 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 design 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 design 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 design 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 design 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, 178 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 22, 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 design 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 sustainable design 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 design consultants are there based in Austin, United States?

RevenueBase identified 54 sustainable design 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?

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

Which city has the most sustainable design consultants?

New York leads with 255 headquartered companies, followed by Chicago (105) and Houston (87).

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 178 verified decision-maker contacts tracked across these 54 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 22, 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.