Company lists · Data refreshed September 2026

Top 24 Utility engineering consulting firms based in Seattle, United States

RevenueBase identified 32 utility engineering consulting firms headquartered in Seattle, United States as of September 2026 and tracks 3,835 professional contacts across them, including 2,323 with verified work emails. Houston is the largest hub.

This list covers utility engineering consulting firms headquartered in Seattle, 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
32Companies
3,835Contacts tracked
2,323Verified emails
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The 24 largest utility engineering consulting firms based in Seattle, United States

Ranked by team size
Top 24 of 32 utility engineering consulting firms based in Seattle, 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
1Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261,001-5,0001,487 contacts →

“KPFF is a multi-office, multi-discipline engineering firm.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 2026501-1,000859 contacts →

“The right team is more than an advantage.”

Source: company website · checked Sep 6, 2026
3Strong evidenceSeattle, WA, United StatesHQ checked Sep 6, 2026201-500188 contacts →

“Hargis Engineers is a mechanical, electrical, telecommunications, security, energy consulting engineering, and commissioning firm.”

Source: company website · checked Sep 6, 2026
4Strong evidenceSeattle, WA, United StatesHQ checked Sep 6, 202651-200178 contacts →

“Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.”

Source: company website · checked Sep 6, 2026
5Strong evidenceSeattle, WA, United StatesHQ checked Sep 6, 202651-200176 contacts →

“Herrera Environmental Consultants is a leading engineering and scientific consulting firm focused on restoration, water, and sustainable development.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 202651-200126 contacts →
Source: company website · checked Sep 6, 2026
7Strong evidenceSeattle, WA, United StatesHQ checked Sep 6, 202651-200109 contacts →

“BHC Consultants, LLC (BHC) is an employee owned and managed consulting, engineering, building code and construction compliance, and planning firm with offices in Seattle and…”

Source: company website · checked Sep 6, 2026
8Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202651-20099 contacts →

“Municipal Engineering Services”

Source: company website · checked Sep 6, 2026
9Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5065 contacts →

“Andersen Bjornstad Kane Jacobs (ABKJ) is a premier consulting design firm in the United States.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 202651-20049 contacts →

“Hart Crowser’s engineers and scientists have the up-to-date knowledge to support practical designs and recommendations.”

Source: company website · checked Sep 6, 2026
11Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261,001-5,00022 contacts →

“PrimeLine Utility Services is a leading provider of construction, maintenance and design solutions for the electric, gas and telecommunication industries.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5019 contacts →

“Improving our communities through economical, functional and sustainable civil design solutions.”

Source: company website · checked Sep 6, 2026
13Strong evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5016 contacts →

“Integrated Design Engineers (idE) is a Seattle-based structural engineering consulting firm founded in 2005.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5016 contacts →

“At WSE, our focus is on service.”

Source: company website · checked Sep 6, 2026
15Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-1011 contacts →

“Deeny Construction Co Inc is an Utilities company located in 2545 Rainier Ave S, Seattle, Washington, United States.”

Source: company website · checked Sep 6, 2026
16Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-508 contacts →

“Green Earth Operations is an environmental science and engineering firm providing objective analysis and environmentally responsible solutions to meet the needs of our clients.”

Source: company website · checked Sep 6, 2026
17Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-507 contacts →

“TFWB Engineers formerly Travis, Fitzmaurice & Associates is an electrical, telecommunications, and security design consulting firm.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-107 contacts →
Source: company website · checked Sep 6, 2026
19Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-506 contacts →

“Ergosync is a full-service electrical and systems engineering company offering design services, project management, construction support, and commissioning services.”

Source: company website · checked Sep 6, 2026
20Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-105 contacts →

“CM Design Group, LLC is a Seattle based civil engineering design firm established in 2011.”

Source: company website · checked Sep 6, 2026
21Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-104 contacts →

“We are a team of experienced electrical engineers and consultants, who provide strategic planning and advocacy for our clients around the globe.”

Source: company website · checked Sep 6, 2026
22Partial evidenceSeattle, United StatesHQ checked Sep 6, 20261-104 contacts →

“Civil engineering services for residential and commercial clients.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-101 contacts →
Source: company website · checked Sep 6, 2026
24Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-101 contacts →

Consulting engineers delivering sustainable, cost-effective water infrastructure projects for public agency and private clients.”

Source: company website · checked Sep 6, 2026

Showing 24 of 32 utility engineering consulting firms based in Seattle, United States

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Utility engineering consulting firms based in Seattle, United States at a glance

As of Sep 6, 2026
60.6%Verified-email coverage
119.8Average contacts per company
11-50Median size (employees)
534.4%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
8
51-200
6
201-500
2
501-1,000
1
1,001-5,000
2

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 32 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 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 Seattle, 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 Seattle 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, 2,323 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 Seattle, United States?

RevenueBase identified 32 utility engineering consulting firms headquartered in Seattle, 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?

Kpff Consulting Engineers, headquartered in Seattle, 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 2,323 verified decision-maker contacts tracked across these 32 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.