Company lists · Data refreshed September 2026

Top 25 Engineering consulting firms based in the United States

Name: Engineering consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 18,075 companies tracked

RevenueBase identified 18,075 company matches for engineering consulting firms associated with the United States as of September 2026 and tracks 790,435 professional contacts across them, including 345,282 with verified work emails and 321,304 with mobile numbers. Houston is the largest hub.

This list covers company matches for engineering consulting firms associated with the 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 2, 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 2, 2026 How this list was built

18,075Companies

790,435Contacts tracked

345,282Verified emails

321,304Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest engineering consulting firms based in the United States

Ranked by team size

Top 25 of 18,075 company matches for engineering consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 2, 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	Jacobs	Exact match	Dallas, TX, United States	10001+	46,472 contacts →
	Exact match “At Jacobs, we're challenging today to reinvent tomorrow – delivering outcomes and solutions for the world's most complex challenges.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
2	Fluor Corporation	Exact match	Irving, TX, United States	10001+	33,095 contacts →
	Exact match “Fluor Corporation is a global engineering, procurement and construction company.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
3	Bechtel Corporation	Exact match	Reston, VA, United States	10001+	24,784 contacts →
	Exact match “Bechtel is a trusted engineering, construction and project management partner to industry and government.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
4	HDR	Exact match	Fort Worth, TX, United States	10001+	15,257 contacts →
	Exact match “HDR is an employee-owned design firm specializing in engineering, architecture, environmental and construction services.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
5	Tetra Tech	Exact match	Pasadena, CA, United States	10001+	13,066 contacts →
	Exact match “Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
6	Burns & Mcdonnell	Exact match	Madison, WI, United States	10001+	12,478 contacts →
	Exact match “At Burns & McDonnell, our engineers, construction professionals, architects, planners, technologists and scientists do more than plan, design and construct.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
7	Black & Veatch	Exact match	Overland Park, KS, United States	10001+	10,807 contacts →
	Exact match “Black & Veatch is an employee-owned, global leader in building critical human infrastructure in Energy, Water, Digital Connectivity and Government Services.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
8	WSP In The U.S	Exact match	New York, NY, United States	10001+	9,318 contacts →
	Exact match “What if you could shape built and natural environments – and the future of those that use them?” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
9	URS Corporation, An Aecom Company	Exact match	San Francisco, CA, United States	10001+	7,722 contacts →
	Exact match “URS Corporation operations are now affiliated with AECOM.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
10	Sargent & Lundy	Exact match	Midland, TX, United States	1,001-5,000	4,145 contacts →
	Exact match “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
11	STV	Exact match	Morrisville, NC, United States	1,001-5,000	3,564 contacts →
	Exact match “STV offers professional services for the infrastructure that powers our lives.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
12	Kleinfelder	Exact match	San Diego, CA, United States	1,001-5,000	2,365 contacts →
	Exact match “At Kleinfelder, we have been connecting great people to the best work since 1961.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
13	KCI	Exact match	North Charleston, SC, United States	1,001-5,000	2,228 contacts →
	Exact match “KCI is a 100-percent employee-owned engineering, consulting and construction firm serving clients throughout the United States and beyond.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
14	DRA Global	Exact match	Johannesburg, United States	1,001-5,000	2,157 contacts →
	Exact match “DRA Global Limited (DRA or the Group) is an international multi-disciplinary engineering, project delivery and operations management group, predominantly focused on the mining…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
15	Langan Engineering & Environmental Services	Exact match	El Segundo, CA, United States	1,001-5,000	2,136 contacts →
	Exact match “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
16	Olsson	Exact match	Phoenix, AZ, United States	1,001-5,000	2,130 contacts →
	Exact match “Olsson is an engineering firm made up of people who craft expert solutions and designs that improve communities.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
17	LJA	Exact match	Sarasota, FL, United States	1,001-5,000	2,073 contacts →
	Exact match “Employee-Owned.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
18	Enercon Services, INC	Exact match	Palm Beach Gardens, FL, United States	1,001-5,000	1,840 contacts →
	Exact match “ENERCON is a multi-discipline engineering and environmental engineering support services firm focused on delivering safe and efficient solutions for the power, data center and…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
19	Johnson, Mirmiran & Thompson	Exact match	Dover, DE, United States	1,001-5,000	1,677 contacts →
	Exact match “Johnson, Mirmiran & Thompson is an employee owned, multi-disciplined firm offering a full array of planning, design, and construction phase consulting services for infrastructure…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
20	Jensen Hughes	Exact match	Greenville, SC, United States	1,001-5,000	1,642 contacts →
	Exact match “Worldwide, we are most recognized for our leadership in fire protection engineering, a tradition of responsibility we have advanced with pride since 1939.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
21	Westwood Professional Services	Exact match	Lake Charles, LA, United States	1,001-5,000	1,631 contacts →
	Exact match “At Westwood, our purpose is to create a better world for people through our work.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
22	UES	Exact match	Houston, TX, United States	1,001-5,000	1,571 contacts →
	Exact match “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
23	CRB	Exact match	Plymouth Meeting, PA, United States	1,001-5,000	1,548 contacts →
	Exact match “CRB is a leading provider of sustainable engineering, architecture, construction and consulting solutions to the global life sciences and food & beverage industries.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
24	Labella Associates	Exact match	New York, United States	1,001-5,000	1,465 contacts →
	Exact match “At LaBella Associates, our job is to create – structures, plans, ideas, results.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
25	Freese And Nichols	Exact match	Greensboro, NC, United States	1,001-5,000	1,461 contacts →
	Exact match “Freese and Nichols is a professional planning, consulting and engineering firm serving clients across the United States.” Recorded in the RevenueBase company graph · Sep 2, 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 “engineering 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 25 of 18,075 engineering consulting firms based in the United States

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Engineering consulting firms based in the United States at a glance

As of Sep 2, 2026

43.7%Verified-email coverage

40.6%Mobile-number coverage

43.7Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · Houston

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

8,474

11-50

6,393

51-200

2,245

201-500

506

501-1,000

168

1,001-5,000

174

10001+

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 the United States whose business descriptions match “engineering 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 345,282 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 2, 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.

Engineering consulting firms by metro

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 “engineering consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many engineering consulting firms are there based in the United States?

RevenueBase identified 18,075 company matches for engineering consulting firms associated with the 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?

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

Which city has the most engineering consulting firms?

Houston leads with 531 company records, followed by New York (397) and Austin (206).

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 345,282 professional contacts with verified work emails tracked across these 18,075 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 2, 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.