Company lists · Data refreshed September 2026

Top 25 Infrastructure management consultants based in the United States

Name: Infrastructure management consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 5,490 companies tracked

RevenueBase identified 5,490 infrastructure management consultants headquartered in the United States as of September 2026 and tracks 442,919 professional contacts across them, including 182,993 with verified work emails. Houston is the largest hub.

This list covers infrastructure management consultants headquartered in the 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

5,490Companies

442,919Contacts tracked

182,993Verified emails

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The 25 largest infrastructure management consultants based in the United States

Ranked by team size

Top 25 of 5,490 infrastructure management consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure management 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	AECOM	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	10001+	63,914 contacts →
	Partial evidence “AECOM is the global infrastructure leader, committed to delivering a better world.” Source: RevenueBase Database · checked Sep 28, 2026
2	Jacobs	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	10001+	46,351 contacts →
	Indirect evidence “At Jacobs, we're challenging today to reinvent tomorrow – delivering outcomes and solutions for the world's most complex challenges.” Source: RevenueBase Database · checked Sep 28, 2026
3	Bechtel Corporation	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	10001+	25,068 contacts →
	Partial evidence “Bechtel is a trusted engineering, construction and project management partner to industry and government.” Source: RevenueBase Database · checked Sep 28, 2026
4	Tetra Tech	Partial evidence	Pasadena, CA, United StatesHQ checked Sep 28, 2026	10001+	12,999 contacts →
	Partial evidence “Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
5	Black & Veatch	Indirect evidence	Overland Park, KS, United StatesHQ checked Sep 28, 2026	10001+	10,851 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
6	WSP In The U.S	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	10001+	9,318 contacts →
	Indirect evidence “What if you could shape built and natural environments – and the future of those that use them?” Source: RevenueBase Database · checked Sep 28, 2026
7	URS Corporation, An Aecom Company	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	10001+	7,706 contacts →
	Indirect evidence “URS Corporation operations are now affiliated with AECOM.” Source: RevenueBase Database · checked Sep 28, 2026
8	HNTB	Partial evidence	Kansas City, MO, United StatesHQ checked Sep 28, 2026	5,001-10,000	7,469 contacts →
	Partial evidence “For over a century, HNTB has shaped the built environment with distinctive expertise across a full spectrum of infrastructure solutions.” Source: RevenueBase Database · checked Sep 28, 2026
9	TRC Companies, INC	Indirect evidence	Windsor, CT, United StatesHQ checked Sep 28, 2026	5,001-10,000	7,017 contacts →
	Indirect evidence “TRC, a member of WSP, stands for adaptability.” Source: RevenueBase Database · checked Sep 28, 2026
10	Michael Baker International	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 28, 2026	5,001-10,000	4,362 contacts →
	Partial evidence “Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…” Source: RevenueBase Database · checked Sep 28, 2026
11	DAI	Partial evidence	Bethesda, MD, United StatesHQ checked Sep 28, 2026	5,001-10,000	3,741 contacts →
	Partial evidence “DAI is an integrated professional services and advisory firm that provides project design and delivery, management consulting, and financial services to companies, investors, and…” Source: RevenueBase Database · checked Sep 28, 2026
12	STV	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,556 contacts →
	Partial evidence “STV offers professional services for the infrastructure that powers our lives.” Source: RevenueBase Database · checked Sep 28, 2026
13	TYLIN	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,067 contacts →
	Partial evidence “As a global engineering firm, we design infrastructure solutions that connect and elevate communities.” Source: RevenueBase Database · checked Sep 28, 2026
14	Entrust Solutions Group	Indirect evidence	Lisle, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,966 contacts →
	Indirect evidence “ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…” Source: RevenueBase Database · checked Sep 28, 2026
15	APTIM	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,639 contacts →
	Indirect evidence “APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Source: RevenueBase Database · checked Sep 28, 2026
16	Brown And Caldwell	Indirect evidence	Walnut Creek, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,473 contacts →
	Indirect evidence “Headquartered in Walnut Creek, Calif, Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations.” Source: RevenueBase Database · checked Sep 28, 2026
17	Geosyntec Consultants	Indirect evidence	Boca Raton, FL, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,393 contacts →
	Indirect evidence “Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural…” Source: RevenueBase Database · checked Sep 28, 2026
18	Kleinfelder	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,344 contacts →
	Indirect evidence “At Kleinfelder, we have been connecting great people to the best work since 1961.” Source: RevenueBase Database · checked Sep 28, 2026
19	KCI	Indirect evidence	Sparks, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,207 contacts →
	Indirect evidence “KCI is a 100-percent employee-owned engineering, consulting and construction firm serving clients throughout the United States and beyond.” Source: RevenueBase Database · checked Sep 28, 2026
20	Langan Engineering & Environmental Services	Indirect evidence	Parsippany, NJ, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,177 contacts →
	Indirect evidence “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Source: RevenueBase Database · checked Sep 28, 2026
21	Civil & Environmental Consultants, INC	Partial evidence	Moon Township, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,145 contacts →
	Partial evidence “Civil & Environmental Consultants, Inc.(CEC) provides comprehensive market-oriented consulting services that advance the strategic business objectives of its clients.” Source: RevenueBase Database · checked Sep 28, 2026
22	Olsson	Indirect evidence	Lincoln, NE, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,108 contacts →
	Indirect evidence “Olsson is an engineering firm made up of people who craft expert solutions and designs that improve communities.” Source: RevenueBase Database · checked Sep 28, 2026
23	Hazen And Sawyer	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,100 contacts →
	Indirect evidence “As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Source: RevenueBase Database · checked Sep 28, 2026
24	Osmose	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	5,001-10,000	2,026 contacts →
	Indirect evidence “We are field technicians, professional engineers, wood scientists, and steel corrosion experts, leveraging more than 90 years of expertise to identify and solve structural issues…” Source: RevenueBase Database · checked Sep 28, 2026
25	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

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: infrastructure management 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 infrastructure management consultants.
Partial evidence: Its own public description names part of infrastructure management consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure management 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 5,490 infrastructure management consultants based in the United States

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Infrastructure management consultants based in the United States at a glance

As of Sep 28, 2026

41.3%Verified-email coverage

80.7Average contacts per company

11-50Median size (employees)

4.4%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

2,605

11-50

1,698

51-200

756

201-500

201

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 5,490 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 infrastructure management 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 the United States whose own description of what they do matches “infrastructure management 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 infrastructure management 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 infrastructure management consultants, and records with no verified work email. Companies headquartered outside United States 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, 182,993 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.

Infrastructure management consultants by metro

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 infrastructure management 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 infrastructure management consultants are there based in the United States?

RevenueBase identified 5,490 infrastructure management consultants headquartered in the 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?

AECOM, headquartered in Dallas, tops this list with the largest team on record.

Which city has the most infrastructure management consultants?

Houston leads with 239 headquartered companies, followed by New York (176) and Chicago (97).

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 182,993 verified decision-maker contacts tracked across these 5,490 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.