Company lists · Data refreshed October 2026

Top 15 Civil engineering staffing based in Seattle, United States

Name: Civil engineering staffing based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 25 companies tracked

RevenueBase identified 25 company matches for civil engineering staffing associated with Seattle, United States as of October 2026 and tracks 1,286 professional contacts across them, including 853 with verified work emails. Across the United States, Houston is the largest hub for this category (154 companies); Seattle has 25.

This list covers company matches for civil engineering staffing associated with Seattle, 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 October 1, 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 Oct 1, 2026 How this list was built

25Companies

1,286Contacts tracked

853Verified emails

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

The 15 largest civil engineering staffing based in Seattle, United States

Ranked by team size

Top 15 of 25 company matches for civil engineering staffing based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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	DCI Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	201-500	404 contacts →
	Exact match “DCI Engineers has been providing client-focused structural and civil engineering services for over three decades.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Delve Underground	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	201-500	311 contacts →
	Exact match “Delve Underground is a leader in heavy civil engineering, serving the transportation, water, wastewater, and energy industries.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Magnusson Klemencic Associates	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	51-200	190 contacts →
	Exact match “We engineer the future of the built environment, one structure, skyline, and community at a time.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Harris Group	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	51-200	178 contacts →
	Exact match “Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	ABKJ	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	11-50	65 contacts →
	Exact match “Andersen Bjornstad Kane Jacobs (ABKJ) is a premier consulting design firm in the United States.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Quantum Consulting Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	11-50	22 contacts →
	Exact match “Quantum Consulting Engineers offers structural engineering services for new and existing buildings, including new construction, tenant improvements, renovation, and historic…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	LPD Engineering Pllc	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	11-50	19 contacts →
	Exact match “Improving our communities through economical, functional and sustainable civil design solutions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Pacific Engineering Technologies, INC	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	11-50	17 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Integrated Design Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	11-50	16 contacts →
	Exact match “Integrated Design Engineers (idE) is a Seattle-based structural engineering consulting firm founded in 2005.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	RHC Engineering	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	11-50	8 contacts →
	Exact match “RHC Engineering is specialized in bridge and structural design.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Eworld Solutions	Exact match	Seattle, United StatesHQ recorded Oct 1, 2026	11-50	8 contacts →
	Exact match “Eworld Solutions specializes in providing companies with expert engineers for design and verification.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Latitude 48 Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	1-10	8 contacts →
	Exact match “OUR FIRM We're a Seattle based Civil Engineering Firm focused on superior service accompanied with cutting edge analysis and design capabilities.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	CM Design Group	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	1-10	5 contacts →
	Exact match “CM Design Group, LLC is a Seattle based civil engineering design firm established in 2011.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Rainier Stormwater Engineering	Exact match	Seattle, United StatesHQ recorded Oct 1, 2026	1-10	4 contacts →
	Exact match “Civil engineering services for residential and commercial clients.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	BG Power Advisors	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “At BG Power Advisors, we are committed to connecting the best engineers with the leading firms in clean energy.” Recorded in the RevenueBase company graph · Oct 1, 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 “civil engineering staffing”. 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 15 of 25 civil engineering staffing based in Seattle, United States

See the full list, filter by size, metro and specialty, and access 853 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Civil engineering staffing based in Seattle, United States at a glance

As of Oct 1, 2026

66.3%Verified-email coverage

51.4Average contacts per company

11-50Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 25 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 Seattle, United States whose business descriptions match “civil engineering staffing” 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 853 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 October 1, 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.

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

How many civil engineering staffing are there based in Seattle, United States?

RevenueBase identified 25 company matches for civil engineering staffing associated with Seattle, United States as of October 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?

DCI Engineers 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 civil engineering staffing?

Houston leads the United States with 154 company records, followed by New York (103) and Austin (67). Seattle has 25.

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 853 professional contacts with verified work emails tracked across these 25 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 October 1, 2026.

Ready to reach these companies? Verified emails and direct dials for all 25 civil engineering staffing based in Seattle, United States. Start with a free account, no credit card.

Download this list →

Related lists

Civil engineering staffing by geography

Browse the directory

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.