Company lists · Data refreshed September 2026

Top 25 Utility engineering consulting firms based in the United States

RevenueBase identified 5,750 utility engineering consulting firms headquartered in the United States as of September 2026 and tracks 411,322 professional contacts across them, including 174,937 with verified work emails and 152,349 with mobile numbers. Houston is the largest hub.

This list covers utility engineering consulting firms 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 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
5,750Companies
411,322Contacts tracked
174,937Verified emails
152,349Mobile numbers
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The 25 largest utility engineering consulting firms based in the United States

Ranked by team size
Top 25 of 5,750 utility engineering consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to utility engineering 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceDallas, TX, United StatesHQ checked Sep 6, 202610001+63,914 contacts →

“AECOM is the global infrastructure leader, committed to delivering a better world.”

Source: company website · checked Sep 6, 2026
2Partial evidenceReston, VA, United StatesHQ checked Sep 6, 202610001+25,068 contacts →

“Bechtel is a trusted engineering, construction and project management partner to industry and government.”

Source: company website · checked Sep 6, 2026
3Partial evidencePasadena, CA, United StatesHQ checked Sep 6, 202610001+12,999 contacts →

“Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceOverland Park, KS, United StatesHQ checked Sep 6, 202610001+10,851 contacts →
Source: company website · checked Sep 6, 2026
5Indirect evidenceEnglewood, CO, United StatesHQ checked Sep 6, 202610001+8,088 contacts →

“CH2M is now Jacobs.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceBoston, MA, United StatesHQ checked Sep 6, 20265,001-10,0007,527 contacts →

“CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.”

Source: company website · checked Sep 6, 2026
7Strong evidenceOlathe, KS, United StatesHQ checked Sep 6, 20265,001-10,0006,113 contacts →

“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.”

Source: company website · checked Sep 6, 2026
8Strong evidencePittsburgh, PA, United StatesHQ checked Sep 6, 20265,001-10,0004,362 contacts →

“Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…”

Source: company website · checked Sep 6, 2026
9Partial evidenceChicago, WY, United StatesHQ checked Sep 6, 20261,001-5,0004,156 contacts →

“Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceHailey, ID, United StatesHQ checked Sep 6, 20261,001-5,0004,013 contacts →

“POWER Engineers is now part of WSP.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 6, 20261,001-5,0003,556 contacts →

“STV offers professional services for the infrastructure that powers our lives.”

Source: company website · checked Sep 6, 2026
12Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261,001-5,0003,067 contacts →

“As a global engineering firm, we design infrastructure solutions that connect and elevate communities.”

Source: company website · checked Sep 6, 2026
13Strong evidenceLisle, IL, United StatesHQ checked Sep 6, 20261,001-5,0002,966 contacts →

“ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…”

Source: company website · checked Sep 6, 2026
14Indirect evidenceWalnut Creek, CA, United StatesHQ checked Sep 6, 20261,001-5,0002,473 contacts →

“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: company website · checked Sep 6, 2026
15Strong evidenceBoca Raton, FL, United StatesHQ checked Sep 6, 20261,001-5,0002,393 contacts →

“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: company website · checked Sep 6, 2026
16Strong evidenceBaton Rouge, LA, United StatesHQ checked Sep 6, 2026n/a2,232 contacts →

“Providence is an employee-owned engineering and environmental consulting firm.”

Source: company website · checked Sep 6, 2026
17Strong evidenceChantilly, VA, United StatesHQ checked Sep 6, 20261,001-5,0002,210 contacts →

“ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.”

Source: company website · checked Sep 6, 2026
18Strong evidenceSparks, NC, United StatesHQ checked Sep 6, 20261,001-5,0002,207 contacts →

“KCI is a 100-percent employee-owned engineering, consulting and construction firm serving clients throughout the United States and beyond.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceParsippany, NJ, United StatesHQ checked Sep 6, 20261,001-5,0002,177 contacts →

“Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.”

Source: company website · checked Sep 6, 2026
20Partial evidenceMoon Township, PA, United StatesHQ checked Sep 6, 20261,001-5,0002,145 contacts →

“Civil & Environmental Consultants, Inc.(CEC) provides comprehensive market-oriented consulting services that advance the strategic business objectives of its clients.”

Source: company website · checked Sep 6, 2026
21Partial evidenceLincoln, NE, United StatesHQ checked Sep 6, 20261,001-5,0002,108 contacts →

“Olsson is an engineering firm made up of people who craft expert solutions and designs that improve communities.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceNew York, NY, United StatesHQ checked Sep 6, 20261,001-5,0002,100 contacts →

“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.”

Source: company website · checked Sep 6, 2026
23Partial evidenceMount Airy, NC, United StatesHQ checked Sep 6, 202610001+2,082 contacts →

“The Pike family of companies is a leading provider of utilities solutions to over 300 investor-owned, municipal and cooperative utilities in the United States.”

Source: company website · checked Sep 6, 2026
24Strong evidenceHolmdel, NJ, United StatesHQ checked Sep 6, 20261,001-5,0002,049 contacts →

“Colliers Engineering & Design, an affiliate of Colliers, is a trusted provider of multi-discipline engineering and architecture, design and consulting services to public and…”

Source: company website · checked Sep 6, 2026
25Partial evidenceRock Island, IL, United StatesHQ checked Sep 6, 20261,001-5,0001,985 contacts →

“Leaders in Engineering and Innovation.”

Source: company website · checked Sep 6, 2026

Showing 25 of 5,750 utility engineering consulting firms based in the United States

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Utility engineering consulting firms based in the United States at a glance

As of Sep 6, 2026
42.5%Verified-email coverage
37.0%Mobile-number coverage
71.5Average contacts per company
11-50Median size (employees)
3.0%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
2,285
11-50
2,139
51-200
907
201-500
215
501-1,000
85
1,001-5,000
92
5,001-10,000
6
10001+
13

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 utility engineering 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 the United States whose own description of what they do matches “utility engineering 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 utility engineering 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 utility engineering consulting firms, 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, 174,937 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.

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 utility engineering 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 utility engineering consulting firms are there based in the United States?

RevenueBase identified 5,750 utility engineering consulting firms 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 utility engineering consulting firms?

Houston leads with 171 headquartered companies, followed by New York (91) and Austin (67).

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 174,937 verified decision-maker contacts tracked across these 5,750 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.

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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.