Company lists · Data refreshed September 2026

Top 16 Infrastructure consulting firms based in Houston, United States

Name: Infrastructure 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 3, 2026 293 companies tracked

RevenueBase identified 293 company matches for infrastructure consulting firms associated with Houston, United States as of September 2026 and tracks 15,154 professional contacts across them, including 5,635 with verified work emails. Across the United States, New York is the largest hub for this category (306 companies); Houston follows with 293.

This list covers company matches for infrastructure consulting firms associated with Houston, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 3, 2026 How this list was built

293Companies

15,154Contacts tracked

5,635Verified emails

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The 16 largest infrastructure consulting firms based in Houston, United States

Ranked by team size

Top 16 of 293 company matches for infrastructure consulting firms based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 3, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Golder	Exact match	Houston, TX, United States	5,001-10,000	3,183 contacts →
	Exact match “Golder was acquired by WSP.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
2	Lockwood, Andrews & Newnam, Inc. LAN	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	201-500	453 contacts →
	Exact match “Lockwood, Andrews & Newnam, Inc.(LAN) is a full-service consulting firm offering planning, engineering and program management services.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
3	PGAL	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	201-500	308 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
4	Ehra Engineering	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	201-500	242 contacts →
	Exact match “EHRA Engineering is a civil engineering, surveying, low impact developing, land planning, construction phase services, traffic, emergency management and landscape architecture…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
5	Office Of The County Engineer	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	501-1,000	241 contacts →
	Exact match “Office of the County Engineer is a regional leader in providing wholly integrated professional services to a broad range of clients.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
6	HVJ Associates	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	51-200	202 contacts →
	Exact match “Completing public infrastructure projects comes with tremendous pressure to serve the public while completing each project on-time and on-budget.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
7	IDS Engineering Group	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	51-200	180 contacts →
	Exact match “Founded in 1970, IDS Engineering Group is a Houston-based civil engineering and surveying firm with over five decades of experience delivering infrastructure solutions for public…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
8	Ceis Critical Energy Infrastructure Services	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	201-500	149 contacts →
	Exact match “Critical Energy Infrastructure Services (CEIS) is a nationally recognized leader in delivering strategic project solutions that support America’s energy infrastructure and…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
9	Shah Smith & Associates, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	51-200	132 contacts →
	Exact match “Shah Smith & Associates, Inc.(SSA) is a 120+ employee Mechanical, Electrical, and Plumbing (MEP) consulting engineering firm with offices in Houston, Austin & Dallas.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
10	Dec, NOW GFT	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	1,001-5,000	129 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
11	Othon, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	51-200	123 contacts →
	Exact match “OTHON is a multi-discipline civil engineering firm.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
12	RG Miller Dccm	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	51-200	114 contacts →
	Exact match “RG Miller \| DCCM is a Houston-based civil engineering firm providing a wide range of infrastructure services to both public and private sector clients in Texas.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
13	S&b Infrastructure, LTD	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	51-200	97 contacts →
	Exact match “S&B Infrastructure, Ltd.(S & BI) has been in existence since 1994 as part of S&B Holdings, Ltd,(one of the largest privately-owned engineering firms in the State of Texas).” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
14	Nearterm Corporation	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	51-200	80 contacts →
	Exact match “Based in Houston, Texas, Nearterm Corporation is one of the nation’s leading executive search, interim staffing and consulting firms with two distinct market focuses in Healthcare…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
15	Sowells Consulting Engineers SCE	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	11-50	66 contacts →
	Exact match “Sowells Consulting Engineers (SCE), established in 2010, is a professional services consulting firm specializing in leading project teams and providing quality control during the…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
16	Civitas Engineering Group, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 3, 2026	51-200	65 contacts →
	Exact match “Civitas Engineering Group Inc.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “infrastructure consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 16 of 293 infrastructure consulting firms based in Houston, United States

See the full list, filter by size, metro and specialty, and access 5,635 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 3, 2026

37.2%Verified-email coverage

51.7Average contacts per company

11-50Median size (employees)

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

118

11-50

116

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 293 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Houston, United States whose business descriptions match “infrastructure consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 5,635 professional contacts with verified work emails across the full matched dataset. 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 3, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Infrastructure consulting firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “infrastructure consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure consulting firms are there based in Houston, United States?

RevenueBase identified 293 company matches for infrastructure consulting firms associated with Houston, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Golder tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

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

New York leads the United States with 306 company records, followed by Houston (293) and Washington (158).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,635 professional contacts with verified work emails tracked across these 293 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 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 SmartSearch, 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.