Company lists · Data refreshed September 2026

Top 23 Transportation engineering firms based in Portland, United States

Name: Transportation engineering 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 19, 2026 31 companies tracked

RevenueBase identified 31 company matches for transportation engineering firms associated with Portland, United States as of September 2026 and tracks 2,548 professional contacts across them, including 1,458 with verified work emails. Across the United States, Houston is the largest hub for this category (121 companies); Portland has 31.

This list covers company matches for transportation engineering firms associated with Portland, 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 19, 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 19, 2026 How this list was built

31Companies

2,548Contacts tracked

1,458Verified emails

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The 23 largest transportation engineering firms based in Portland, United States

Ranked by team size

Top 23 of 31 company matches for transportation engineering firms based in Portland, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	David Evans And Associates, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	501-1,000	1,031 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Kittelson & Associates, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	201-500	411 contacts →
	Exact match “We solve complex transportation problems to improve people's everyday lives.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	OTAK	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	201-500	341 contacts →
	Exact match “Otak values people, both those in our workplace and those that are impacted by the projects we undertake.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	DKS Associates	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	51-200	192 contacts →
	Exact match “Our work helps clients explore options, make sound decisions, and build a transformative future.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Quality Counts, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	51-200	118 contacts →
	Exact match “Quality Counts provides a variety of transportation data services to help guide infrastructure growth, improve network efficiency and make our communities better places to live…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Harper Houf Peterson Righellis INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	51-200	101 contacts →
	Exact match “Founded in Portland, Oregon in 1990, Harper Houf Peterson Righellis Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Whpacific, An Nv5 Company	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1,001-5,000	78 contacts →
	Exact match “WHPacific was acquired by NV5 in July of 2019.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Vlmk Engineering Design	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	47 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Murraysmith	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	201-500	40 contacts →
	Exact match “In 2021, Murraysmith became Consor Engineers, integrating our decades of experience delivering high-quality water and transportation infrastructure projects for public agency…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Snyder Civil Engineering, LLC	Exact match	Portland, CT, United StatesHQ recorded Sep 19, 2026	11-50	33 contacts →
	Exact match “Snyder Civil is a cohesive team of water system professionals based in central Connecticut.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Froelich Engineers	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	30 contacts →
	Exact match “Since 1983, Froelich Engineers has been delivering on-time, on-budget engineering services to leading owners, contractors, engineers, and developers across the country.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	SFA Design Group, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	16 contacts →
	Exact match “SFA Design Group, LLC is a structural engineering consulting company based out of Portland, Oregon, United States.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Safety Management Systems, LLC	Exact match	Portland, ME, United StatesHQ recorded Sep 19, 2026	1-10	16 contacts →
	Exact match “Transportation industry consulting services in the areas of process optimization, improvement, operational assessment, regulatory compliance programs and special projects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Jarrett Walker Associates	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	14 contacts →
	Exact match “Jarrett Walker + Associates was founded in 2011 by Jarrett Walker, the author of Human Transit, who has been a consulting expert in public transit planning and policy since 1993.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Humber Design Group, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	12 contacts →
	Exact match “Humber Design Group provides civil engineering design services for projects throughout the Pacific Northwest - large, small, complex, straightforward, urban, suburban, private…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Allstructure Engineering, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	8 contacts →
	Exact match “Allstructure Engineering, LLC is a full service consulting Structural Engineering firm established in 2005.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Curran-Mcleod, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	6 contacts →
	Exact match “Patrick D.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Lancaster Mobley	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	4 contacts →
	Exact match “We foster strong relationships and employ the breadth of our trusted experience to forge safe, diverse, efficient, and smart transportation solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	urban.systems	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	3 contacts →
	Exact match “As cities explore new transit systems, roads and utilities or modernize their aging infrastructure URBAN.SYSTEMS and it’s partners provide a range of civic engagement, financial…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Garnet Consulting, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “Specialized transit technology, operations, and software consulting for rural, small urban, and intercity agencies and the organizations that serve them” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	DON Cushing Associates	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “Providing general civil for architects, developers, cities.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	RBT Consultants	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “Transportation Solutions Whether you need a traffic impact analysis for your development project or a comprehensive transportation demand management plan, RBT brings the resources…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Fair Dermody Consulting Engineers	Exact match	Portland, ME, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “We specialize in heavy transportation infrastructure design and repair with concentrations in railroad, bridge, and marine engineering.” Recorded in the RevenueBase company graph · Sep 19, 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 “transportation engineering 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 23 of 31 transportation engineering firms based in Portland, United States

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Transportation engineering firms based in Portland, United States at a glance

As of Sep 19, 2026

57.2%Verified-email coverage

82.2Average contacts per company

11-50Median size (employees)

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 31 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 Portland, United States whose business descriptions match “transportation engineering 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 1,458 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 19, 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.

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

How many transportation engineering firms are there based in Portland, United States?

RevenueBase identified 31 company matches for transportation engineering firms associated with Portland, 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?

David Evans And Associates, INC 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 transportation engineering firms?

Houston leads the United States with 121 company records, followed by New York (86) and Austin (59). Portland has 31.

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 1,458 professional contacts with verified work emails tracked across these 31 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 19, 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.