Company lists · Data refreshed September 2026

Top 25 Sustainable design firms based in Houston, United States

Name: Sustainable design firms based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 71 companies tracked

RevenueBase identified 71 sustainable design firms headquartered in Houston, United States as of September 2026 and tracks 1,527 professional contacts across them, including 561 with verified work emails. New York is the largest hub.

This list covers sustainable design firms headquartered in Houston, 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

71Companies

1,527Contacts tracked

561Verified emails

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The 25 largest sustainable design firms based in Houston, United States

Ranked by team size

Top 25 of 71 sustainable design firms based in Houston, 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 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Estudio Architecture	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	n/a	390 contacts →
	Partial evidence “eStudio is a specialized full service architectural and boutique design firm.” Source: RevenueBase Database · checked Sep 22, 2026
2	Kirksey Architecture	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	201-500	252 contacts →
	Partial evidence “We are Kirksey, a Texas-based architecture firm, passionate about great architecture and all things sustainable.” Source: RevenueBase Database · checked Sep 22, 2026
3	Shah Smith & Associates, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	51-200	134 contacts →
	Indirect evidence “Shah Smith & Associates, Inc.(SSA) is a 120+ employee Mechanical, Electrical, and Plumbing (MEP) consulting engineering firm with offices in Houston, Austin & Dallas.” Source: RevenueBase Database · checked Sep 22, 2026
4	Climeco	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	51-200	96 contacts →
	Partial evidence “ClimeCo is an award-winning leader in decarbonization, empowering global organizations with customized sustainability pathways.” Source: RevenueBase Database · checked Sep 22, 2026
5	Harrisonkornberg Architects	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	49 contacts →
	Indirect evidence “Founded in 2003, HarrisonKornberg Architects provides a full range of high-quality architectural services to the Texas market and beyond.” Source: RevenueBase Database · checked Sep 22, 2026
6	PDG Architects	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	46 contacts →
	Indirect evidence “PDG Architects, based in Houston, Texas, is a full-service architectural firm recognized for quality performance.” Source: RevenueBase Database · checked Sep 22, 2026
7	Morris Architects A Huitt-Zollars Company	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	201-500	44 contacts →
	Partial evidence “With over 75 years of design expertise, Morris, a Huitt-Zollars Company, is an award-winning, full-service practice with locations in Houston, Orlando, Los Angeles, Fort Worth…” Source: RevenueBase Database · checked Sep 22, 2026
8	Asakura Robinson	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	36 contacts →
	Partial evidence “Asakura Robinson Company LLC is recognized as an outstanding Landscape Architecture firm most noted for design sensitivity, highly effective public engagement and as tireless…” Source: RevenueBase Database · checked Sep 22, 2026
9	English Associates Architects, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	28 contacts →
	Partial evidence “English + Associates Architects is a full-service architectural and interior design firm specializing in high-performance, green-design solutions.” Source: RevenueBase Database · checked Sep 22, 2026
10	Grow And Company	Strong evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	20 contacts →
	Strong evidence “We are a full service Residential Landscape Design + Build Firm that emphasizes the use of sustainable landscaping practices.” Source: RevenueBase Database · checked Sep 22, 2026
11	ERC Environmental & Construction Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	18 contacts →
	Indirect evidence “ERC is a Professional Services Firm in Environmental Consulting and Construction.” Source: RevenueBase Database · checked Sep 22, 2026
12	Mcbride Sustainability	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	17 contacts →
	Partial evidence “McBride SustainAbility is the leader consulting company with more than fifteen years of experience in sustainability, social responsibility, public relations as well as internal…” Source: RevenueBase Database · checked Sep 22, 2026
13	DIG Engineers	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	1-10	16 contacts →
	Partial evidence “DIG is a client service-oriented, multi-disciplined planning and design practice offering civil engineering for markets in both the public and private sectors.” Source: RevenueBase Database · checked Sep 22, 2026
14	Browne Mcgregor Architects INC	Strong evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	16 contacts →
	Strong evidence “Founded in 1995 Browne McGregor Architects is a mid-sized architectural firm specializing in the design of aesthetically pleasing, highly functional, sustainable buildings.” Source: RevenueBase Database · checked Sep 22, 2026
15	Stoa Architects - Houston	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	13 contacts →
	Partial evidence “STOA International Architects, Inc.(HUB/MBE) is an award-winning architecture firm delivering innovative design solutions that not only serve the operational goals of our clients…” Source: RevenueBase Database · checked Sep 22, 2026
16	Bocci Engineering	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	1-10	13 contacts →
	Indirect evidence “Bocci is an energy and environmental engineering consultancy based in Houston, Texas providing high quality, innovative and cost-effective solutions that significantly reduce or…” Source: RevenueBase Database · checked Sep 22, 2026
17	Cre8 Architects	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	12 contacts →
	Partial evidence “cre8 is a collaborative partnership of creative individuals providing design services to educational and commercial clients.” Source: RevenueBase Database · checked Sep 22, 2026
18	Munoz Albin Architecture & Planning	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	12 contacts →
	Partial evidence “Munoz + Albin is exclusively a design studio with a diverse project portfolio.” Source: RevenueBase Database · checked Sep 22, 2026
19	LO Architecture	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	1-10	11 contacts →
	Partial evidence “LO architecture provides commercial architectural and consulting services, from feasibility studies and conceptual design to permitting and construction administration.” Source: RevenueBase Database · checked Sep 22, 2026
20	Arte Architecture	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	1-10	11 contacts →
	Indirect evidence “Arte Architecture is an award winning firm specializing in Commercial, Industrial, and Residential projects.” Source: RevenueBase Database · checked Sep 22, 2026
21	Sandlot Engineering	Strong evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	1-10	8 contacts →
	Strong evidence “Sandlot Engineering, LLC is a boutique civil engineering firm with passionate and proactive team members that want to make the world a better place through sustainable design of…” Source: RevenueBase Database · checked Sep 22, 2026
22	Content Architecture	Indirect evidence	Houston, United StatesHQ checked Sep 22, 2026	1-10	7 contacts →
	Indirect evidence “At CONTENT, our mission is not only to create architecture within our clients’ spatial and budgetary needs, but also to deliver a project that is accountable for, and responsive…” Source: RevenueBase Database · checked Sep 22, 2026
23	SWD Futures	Partial evidence	Houston, United StatesHQ checked Sep 22, 2026	1-10	5 contacts →
	Partial evidence “Sustainable Transition: Advisory, Development, Investment Management SWD is an advisory firm powered by an extensive team of experts.” Source: RevenueBase Database · checked Sep 22, 2026
24	Doan & Associates, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	1-10	5 contacts →
	Partial evidence “With over thirty years of experience, Doan & Associates has provided expertise in designing, planning, and consulting ranging from commercial to residential buildings.” Source: RevenueBase Database · checked Sep 22, 2026
25	M Architects	Indirect evidence	Houston, United StatesHQ checked Sep 22, 2026	1-10	5 contacts →
	Indirect evidence “m ARCHITECTS is not currently offering and/or providing architectural services in the State of Texas.” 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 firms. 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 firms.
Partial evidence: Its own public description names part of sustainable design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable design firms. 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 71 sustainable design firms based in Houston, United States

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Sustainable design firms based in Houston, United States at a glance

As of Sep 22, 2026

36.7%Verified-email coverage

21.5Average contacts per company

1-10Median size (employees)

453.5%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 71 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 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 Houston, United States whose own description of what they do matches “sustainable design 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 design 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 design firms, and records with no verified work email. Companies headquartered outside Houston 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, 561 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 firms 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 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 design firms are there based in Houston, United States?

RevenueBase identified 71 sustainable design firms headquartered in Houston, 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?

Estudio Architecture, headquartered in Houston, tops this list with the largest team on record.

Which city has the most sustainable design firms?

New York leads with 322 headquartered companies, followed by Los Angeles (146) and Seattle (121).

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 561 verified decision-maker contacts tracked across these 71 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.