Company lists · Data refreshed September 2026

Top 25 Civil engineering staffing firms based in Portland, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 50 companies tracked

RevenueBase identified 50 civil engineering staffing firms headquartered in Portland, United States as of September 2026 and tracks 1,751 professional contacts across them, including 902 with verified work emails. Across the United States, Houston is the largest hub for this category (257 companies); Portland has 50.

This list covers civil engineering staffing firms headquartered in Portland, 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 27, 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 27, 2026 86% judged on-target in blind review

50Companies

1,751Contacts tracked

902Verified emails

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The 25 largest civil engineering staffing firms based in Portland, United States

Ranked by team size

Top 25 of 50 civil engineering staffing firms based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to civil engineering staffing 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	David Evans And Associates, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	501-1,000	1,031 contacts →
	Indirect evidence “Since its founding in 1976 in Portland, Oregon, DEA has become a recognized leader for progressive and sustainable design and management solutions for complex transportation, land…” Source: RevenueBase Database · checked Sep 27, 2026
2	Harper Houf Peterson Righellis INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	51-200	101 contacts →
	Indirect evidence “Founded in Portland, Oregon in 1990, Harper Houf Peterson Righellis Inc.” Source: RevenueBase Database · checked Sep 27, 2026
3	Whpacific, An Nv5 Company	Indirect evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	1,001-5,000	78 contacts →
	Indirect evidence “WHPacific was acquired by NV5 in July of 2019.” Source: RevenueBase Database · checked Sep 27, 2026
4	ALL Star Labor And Staffing	Partial evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	53 contacts →
	Partial evidence “All Star Labor & Staffing, founded in Portland in 2009, is a boutique staffing agency that offers local companies a level of customer service and customization that larger…” Source: RevenueBase Database · checked Sep 27, 2026
5	Vlmk Engineering Design	Strong evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	47 contacts →
	Strong evidence “Founded in 1971 in beautiful Portland, OR, VLMK Engineering + Design provides structural and civil engineering services for a variety of clients in the A/E/C and development…” Source: RevenueBase Database · checked Sep 27, 2026
6	Specialized Recruiting Group	Partial evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	n/a	45 contacts →
	Partial evidence “Specialized Recruiting Group of Portland, OR is a full-service professional recruiting firm specializing in Information Technology, Engineering, Accounting/Finance…” Source: RevenueBase Database · checked Sep 27, 2026
7	DPI Staffing	Partial evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	1,001-5,000	36 contacts →
	Partial evidence “DPI Staffing is your source for the best in temporary, temp-to-hire and direct hire staffing.” Source: RevenueBase Database · checked Sep 27, 2026
8	Snyder Civil Engineering, LLC	Partial evidence	Portland, CT, United StatesHQ checked Sep 27, 2026	11-50	33 contacts →
	Partial evidence “Snyder Civil is a cohesive team of water system professionals based in central Connecticut.” Source: RevenueBase Database · checked Sep 27, 2026
9	Froelich Engineers	Partial evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	30 contacts →
	Partial evidence “Since 1983, Froelich Engineers has been delivering on-time, on-budget engineering services to leading owners, contractors, engineers, and developers across the country.” Source: RevenueBase Database · checked Sep 27, 2026
10	Peterson Structural Engineers, INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	29 contacts →
	Partial evidence “In 2026, PSE was acquired by Consor, a leading North American engineering and advisory firm.” Source: RevenueBase Database · checked Sep 27, 2026
11	Let's Work LLC	Partial evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	17 contacts →
	Partial evidence “Let's Work is a leading staffing firm based in Portland, OR, specializing in on-demand and specialized staffing solutions.” Source: RevenueBase Database · checked Sep 27, 2026
12	SFA Design Group, LLC	Partial evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	16 contacts →
	Partial evidence “SFA Design Group, LLC is a structural engineering consulting company based out of Portland, Oregon, United States.” Source: RevenueBase Database · checked Sep 27, 2026
13	Springborn Staffing	Partial evidence	Portland, ME, United StatesHQ checked Sep 27, 2026	11-50	16 contacts →
	Partial evidence “Springborn Staffing has been Maine’s trusted recruiting partner since 1987.” Source: RevenueBase Database · checked Sep 27, 2026
14	2kg Contractors, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	15 contacts →
	Indirect evidence “2KG Contractors is a professional construction company founded in 1989.” Source: RevenueBase Database · checked Sep 27, 2026
15	Lexicon Solutions	Strong evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	51-200	15 contacts →
	Strong evidence “Lexicon Solutions is a Portland, OR based full-service Information Technology and Engineering staffing firm that specializes in contract, contract-to-hire, direct placement, and…” Source: RevenueBase Database · checked Sep 27, 2026
16	Vista Structural Engineering, LLC	Partial evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	1-10	14 contacts →
	Partial evidence “Vista Structural Engineering can help you complete any of the following projects: New Construction (Residential, Light Commercial) Addition to Existing Construction (Residential…” Source: RevenueBase Database · checked Sep 27, 2026
17	Humber Design Group, INC	Strong evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	12 contacts →
	Strong evidence “Humber Design Group provides civil engineering design services for projects throughout the Pacific Northwest - large, small, complex, straightforward, urban, suburban, private…” Source: RevenueBase Database · checked Sep 27, 2026
18	WDY Structural & Civil Engineers	Strong evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	11 contacts →
	Strong evidence “Structural and Civil Engineering Solutions” Source: RevenueBase Database · checked Sep 27, 2026
19	Stonewood Structural Engineers	Indirect evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	1-10	10 contacts →
	Indirect evidence “At Stonewood Structural Engineers, we serve as either prime consultant or sub consultant on projects large and small, including commercial, retail, institutional, government and…” Source: RevenueBase Database · checked Sep 27, 2026
20	Allstructure Engineering, LLC	Partial evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	8 contacts →
	Partial evidence “Allstructure Engineering, LLC is a full service consulting Structural Engineering firm established in 2005.” Source: RevenueBase Database · checked Sep 27, 2026
21	Livermore Architecture & Engineering, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	11-50	7 contacts →
	Indirect evidence “Founded in by Gary Livermore, a dually licensed architect and structural engineer, LAE has made a mark both in Oregon and throughout the United States as an effective commercial…” Source: RevenueBase Database · checked Sep 27, 2026
22	Base Design Group, INC	Partial evidence	Portland, ME, United StatesHQ checked Sep 27, 2026	11-50	7 contacts →
	Partial evidence “BASE DESIGN GROUP is a full-service structural engineering consulting firm providing design, analysis and evaluation of buildings and special structures throughout the northeast…” Source: RevenueBase Database · checked Sep 27, 2026
23	Arris Consulting	Indirect evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	1-10	6 contacts →
	Indirect evidence “Arris Consulting was formed in 2019 by Brian Butler and Andrew Craig in Portland, OR and in 2021 brought Shane Fitzpatrick on as plumbing principal.” Source: RevenueBase Database · checked Sep 27, 2026
24	Curran-Mcleod, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	1-10	6 contacts →
	Indirect evidence “Patrick D.” Source: RevenueBase Database · checked Sep 27, 2026
25	Thornton Tomasetti Becker Structural Engineers, INC	Indirect evidence	Portland, ME, United StatesHQ checked Sep 27, 2026	11-50	4 contacts →
	Indirect evidence “Becker Structural Engineers was founded in 1994.” Source: RevenueBase Database · checked Sep 27, 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: civil engineering staffing firms. 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 civil engineering staffing firms.
Partial evidence: Its own public description names part of civil engineering staffing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name civil engineering staffing firms. 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 50 civil engineering staffing firms based in Portland, United States

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Civil engineering staffing firms based in Portland, United States at a glance

As of Sep 27, 2026

51.5%Verified-email coverage

35.0Average contacts per company

11-50Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Portland, so it is reported there. Company counts and contact totals on this page are exact for Portland, over 50 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 civil engineering staffing 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 Portland, United States whose own description of what they do matches “civil engineering staffing 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 civil engineering staffing 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 civil engineering staffing firms, and records with no verified work email. Companies headquartered outside Portland 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, 902 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 27, 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.

Civil engineering staffing firms by metro in the United States

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 civil engineering staffing 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 civil engineering staffing firms are there based in Portland, United States?

RevenueBase identified 50 civil engineering staffing firms headquartered in Portland, 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?

David Evans And Associates, INC, headquartered in Portland, tops this list with the largest team on record.

Which city in the United States has the most civil engineering staffing firms?

Houston leads the United States with 257 headquartered companies, followed by New York (168) and Dallas (108). Portland has 50.

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 902 verified decision-maker contacts tracked across these 50 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 27, 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.