Company lists · Data refreshed September 2026

Top 25 Architecture firms based in Houston, United States

RevenueBase identified 657 architecture firms headquartered in Houston, United States as of September 2026 and tracks 12,154 professional contacts across them, including 6,171 with verified work emails. New York is the largest hub.

This list covers architecture 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 6, 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 6, 2026 86% judged on-target in blind review
657Companies
12,154Contacts tracked
6,171Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest architecture firms based in Houston, United States

Ranked by team size
Top 25 of 657 architecture firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to architecture 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
1Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 20261,001-5,0001,298 contacts →

“Welcome to Walter P Moore!”

Source: company website · checked Sep 6, 2026
2Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 20261,001-5,0001,112 contacts →

“Ranked No.”

Source: company website · checked Sep 6, 2026
3Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 20261,001-5,000892 contacts →

“PBK is an award-winning architecture, engineering and consulting practice that has been a leader in design solutions for education, healthcare, corporate, government and…”

Source: company website · checked Sep 6, 2026
4Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 2026501-1,000691 contacts →

“Harvey Cleary is a leading, full-service general contractor headquartered in Houston, Texas.”

Source: company website · checked Sep 6, 2026
5Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 2026n/a390 contacts →

“eStudio is a specialized full service architectural and boutique design firm.”

Source: company website · checked Sep 6, 2026
6Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-500312 contacts →

“Founded in 1946, PGAL is a design firm specializing in architecture, engineering, interiors, and planning for a diverse portfolio of public and private sector clients.”

Source: company website · checked Sep 6, 2026
7Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-500294 contacts →

“Helping AEC Firms Scale with On-Demand, US-Trained Architecture & MEP Professionals At Virtual Building Studio, we help AEC firms scale faster and deliver projects more…”

Source: company website · checked Sep 6, 2026
8Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-500260 contacts →

“Founded in 1993, Tolunay-Wong Engineers, Inc.(TWE) is ranked as one of the Top 10 largest civil engineering firms in Houston.”

Source: company website · checked Sep 6, 2026
9Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-500252 contacts →

“We are Kirksey, a Texas-based architecture firm, passionate about great architecture and all things sustainable.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 2026501-1,000248 contacts →

“Office of the County Engineer is a regional leader in providing wholly integrated professional services to a broad range of clients.”

Source: company website · checked Sep 6, 2026
11Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-500247 contacts →

“EHRA Engineering is a civil engineering, surveying, low impact developing, land planning, construction phase services, traffic, emergency management and landscape architecture…”

Source: company website · checked Sep 6, 2026
12Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-500170 contacts →

“Cokinos | Young has led Texas construction and real estate law for over three decades.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-200134 contacts →

“Shah Smith & Associates, Inc.(SSA) is a 120+ employee Mechanical, Electrical, and Plumbing (MEP) consulting engineering firm with offices in Houston, Austin & Dallas.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 20261,001-5,000128 contacts →

“Gannett Fleming is a privately held AEC firm partnering closely with our clients on some of the toughest challenges facing our communities today-and into the future.”

Source: company website · checked Sep 6, 2026
15Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-200124 contacts →

“Powers Brown Architecture is a professional services firm practicing architecture, interior design, programming and urban design.”

Source: company website · checked Sep 6, 2026
16Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-200124 contacts →

“OJB Landscape Architecture focuses on creating landscapes that transform perspectives and evoke emotional responses, creating unique and unforgettable sensory experiences.”

Source: company website · checked Sep 6, 2026
17Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202611-50111 contacts →

“Burton Construction is a full-service general contracting firm headquartered in Houston, Texas.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-200107 contacts →

“Jamail & Smith Construction specializes in K-12, Higher Education, City/County & disaster recovery construction.”

Source: company website · checked Sep 6, 2026
19Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-200102 contacts →

“Goree is a full-service architecture and design firm delivering solution-focused, performance-driven environments in a multitude of markets.”

Source: company website · checked Sep 6, 2026
20Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202611-5095 contacts →

“As SPD, we strive to be our client’s top advisor during Design, Construction and Occupancy.”

Source: company website · checked Sep 6, 2026
21Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-20089 contacts →

“Since 1947, Teal Construction Company has provided General Contracting and Construction Management services to commercial clients nationwide.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-20087 contacts →

“Rottet Studio is widely regarded as one of the finest design practices in the world and was voted one of the Top 3 Most Admired Firms by a jury of peer professionals.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202611-5080 contacts →

“We deliver client-pleasing services on purpose.”

Source: company website · checked Sep 6, 2026
24Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-20078 contacts →

“Through our design, architecture and consulting services, we have an unparalleled track record of solving for human experiences, and design challenges around the world.”

Source: company website · checked Sep 6, 2026
25Strong evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-20070 contacts →

“Ziegler Cooper has emerged as one of Houston’s premier architecture firms that practices nationally and internationally.”

Source: company website · checked Sep 6, 2026

Showing 25 of 657 architecture firms based in Houston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 6,171 reachable decision-makers.

Free signup · no credit card

View the full list →

Architecture firms based in Houston, United States at a glance

As of Sep 6, 2026
50.8%Verified-email coverage
18.5Average contacts per company
1-10Median size (employees)
376.4%Largest-city concentration · New York
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
396
11-50
199
51-200
42
201-500
8
501-1,000
3
1,001-5,000
6

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 657 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 architecture 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 “architecture 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 architecture 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 architecture 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, 6,171 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 6, 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.

Architecture 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 architecture 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 architecture firms are there based in Houston, United States?

RevenueBase identified 657 architecture 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?

Walter P Moore, headquartered in Houston, tops this list with the largest team on record.

Which city has the most architecture firms?

New York leads with 2473 headquartered companies, followed by Los Angeles (1046) and Chicago (781).

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 6,171 verified decision-maker contacts tracked across these 657 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 657 architecture firms based in Houston, United States. Start with a free account, no credit card.

Download this list →

Related lists

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.