Company lists · Data refreshed September 2026

Top 25 Facilities consulting firms based in Houston, United States

Name: Facilities consulting 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 28, 2026 128 companies tracked

RevenueBase identified 128 facilities consulting firms headquartered in Houston, United States as of September 2026 and tracks 5,222 professional contacts across them, including 3,081 with verified work emails. Across the United States, New York is the largest hub for this category (304 companies); Houston has 128.

This list covers facilities consulting 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 28, 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 28, 2026 86% judged on-target in blind review

128Companies

5,222Contacts tracked

3,081Verified emails

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The 25 largest facilities consulting firms based in Houston, United States

Ranked by team size

Top 25 of 128 facilities consulting firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to facilities 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	LJA	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,932 contacts →
	Indirect evidence “Employee-Owned.” Source: RevenueBase Database · checked Sep 28, 2026
2	PBK	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	892 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 28, 2026
3	PGAL	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	312 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
4	Office Of The County Engineer	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	501-1,000	248 contacts →
	Indirect evidence “Office of the County Engineer is a regional leader in providing wholly integrated professional services to a broad range of clients.” Source: RevenueBase Database · checked Sep 28, 2026
5	Mantis Innovation	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	233 contacts →
	Indirect evidence “At Mantis Innovation, our experts provide data-driven, consultative services designed to optimize your facility, sustainability, and energy management strategies, while ultimately…” Source: RevenueBase Database · checked Sep 28, 2026
6	Shah Smith & Associates, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	134 contacts →
	Partial 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 28, 2026
7	Powers Brown Architecture	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	124 contacts →
	Indirect evidence “Powers Brown Architecture is a professional services firm practicing architecture, interior design, programming and urban design.” Source: RevenueBase Database · checked Sep 28, 2026
8	PDR	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	78 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 28, 2026
9	Abel Design Group	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	67 contacts →
	Indirect evidence “Founded in Houston, Texas in 2001, Abel Design Group (ADG) is an award-winning architecture and interior design firm specializing in corporate, hospitality, higher education…” Source: RevenueBase Database · checked Sep 28, 2026
10	Philowilke Partnership	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	52 contacts →
	Indirect evidence “The PhiloWilke Partnership was formed in 1985 on the premise that the best way to serve their healthcare clients is to provide industry-specialized design with client-specific…” Source: RevenueBase Database · checked Sep 28, 2026
11	FKP Cannondesign	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect evidence “Founded in 1937, FKP \| CannonDesign is one of the nation's largest specialty practices, focused on the planning and design of modern healthcare, higher education and research…” Source: RevenueBase Database · checked Sep 28, 2026
12	Blackline Engineering, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	46 contacts →
	Partial evidence “Blackline Engineering, LLC is a Houston based engineering consulting firm that offers innovative design and project management services that are tailored for each client.” Source: RevenueBase Database · checked Sep 28, 2026
13	j.tyler	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	46 contacts →
	Indirect evidence “We are 40 this year!” Source: RevenueBase Database · checked Sep 28, 2026
14	PDG Architects	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
15	Energy Architecture, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	44 contacts →
	Indirect evidence “Energy Architecture is a specialized architecture firm based in Houston, serving clients at the forefront of innovation, research, and discovery.” Source: RevenueBase Database · checked Sep 28, 2026
16	Pinnacle Structural Engineers	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	33 contacts →
	Partial evidence “Pinnacle is a structural engineering consulting firm providing services on a wide variety of project types, including: commercial, healthcare, workplace, institutional and…” Source: RevenueBase Database · checked Sep 28, 2026
17	Gunda Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	31 contacts →
	Partial evidence “Gunda Corporation (GUNDA) is a Houston-based consulting firm that provides planning, engineering and management services in all aspects of engineering, including traffic &…” Source: RevenueBase Database · checked Sep 28, 2026
18	English Associates Architects, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect 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 28, 2026
19	M Strategic Partners, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “m Strategic Partners was launched in 2013 with the goal of creating a very different type of program management firm in the design and construction industry – a firm that…” Source: RevenueBase Database · checked Sep 28, 2026
20	Matrix Structural Engineers	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “Matrix Structural Engineers, a multiple award-winning firm, was founded in 1993 in Houston.” Source: RevenueBase Database · checked Sep 28, 2026
21	CDI Douglass Pye, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	23 contacts →
	Indirect evidence “CDI Douglass - Pye, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
22	Rice & Gardner	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “At Rice & Gardner Consultants, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
23	Rogers Desimone Structural Engineers, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Henderson Rogers Structural Engineers, LLC was founded in 2005 by Elaine Rogers and Matt Henderson as a partnership dedicated to providing structural engineering services to…” Source: RevenueBase Database · checked Sep 28, 2026
24	Loma Architecture	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “LOMA Architecture is a full-service architectural firm based in Houston, Texas.” Source: RevenueBase Database · checked Sep 28, 2026
25	AMB Architects	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	1-10	16 contacts →
	Indirect evidence “AMB Architects is a Houston based firm specializing in commercial interior architectural design.” Source: RevenueBase Database · checked Sep 28, 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: facilities consulting 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 facilities consulting firms.
Partial evidence: Its own public description names part of facilities consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name facilities consulting 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 128 facilities consulting firms based in Houston, United States

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Facilities consulting firms based in Houston, United States at a glance

As of Sep 28, 2026

59.0%Verified-email coverage

40.8Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 128 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 facilities 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 Houston, United States whose own description of what they do matches “facilities 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 facilities 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 facilities consulting 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, 3,081 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 28, 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.

Facilities consulting 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 facilities 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 facilities consulting firms are there based in Houston, United States?

RevenueBase identified 128 facilities consulting 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?

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

Which city in the United States has the most facilities consulting firms?

New York leads the United States with 304 headquartered companies, followed by Chicago (131) and Houston (128).

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 3,081 verified decision-maker contacts tracked across these 128 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 28, 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.