Company lists · Data refreshed October 2026

Top 25 Geotechnical consulting firms based in Portland, United States

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

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 42 companies tracked

RevenueBase identified 42 company matches for geotechnical consulting firms associated with Portland, United States as of October 2026 and tracks 582 professional contacts across them, including 306 with verified work emails. Across the United States, Houston is the largest hub for this category (198 companies); Portland has 42.

This list covers company matches for geotechnical consulting 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 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

42Companies

582Contacts tracked

306Verified emails

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The 25 largest geotechnical consulting firms based in Portland, United States

Ranked by team size

Top 25 of 42 company matches for geotechnical consulting firms based in Portland, 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	Harper Houf Peterson Righellis INC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	51-200	101 contacts →
	Exact match “Founded in Portland, Oregon in 1990, Harper Houf Peterson Righellis Inc.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Whpacific, An Nv5 Company	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	1,001-5,000	78 contacts →
	Exact match “WHPacific was acquired by NV5 in July of 2019.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	GSI Water Solutions, INC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	51-200	66 contacts →
	Exact match “GSI Water Solutions, Inc, is a specialized groundwater, environmental, and water resources consulting firm.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Vlmk Engineering Design	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
5	Norwest Engineering INC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	51-200	41 contacts →
	Exact match “Norwest Engineering is a multi-disciplined, consulting engineering firm focused on developing long-standing relationships with our clients.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Froelich Engineers	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
7	Peterson Structural Engineers, INC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	11-50	29 contacts →
	Exact match “In 2026, PSE was acquired by Consor, a leading North American engineering and advisory firm.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	SFA Design Group, LLC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
9	2kg Contractors, INC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	11-50	15 contacts →
	Exact match “2KG Contractors is a professional construction company founded in 1989.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Vista Structural Engineering, LLC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	1-10	14 contacts →
	Exact match “Vista Structural Engineering can help you complete any of the following projects: New Construction (Residential, Light Commercial) Addition to Existing Construction (Residential…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	WDY Structural & Civil Engineers	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	11-50	11 contacts →
	Exact match “Structural and Civil Engineering Solutions” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Talbott Associates INC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	11-50	9 contacts →
	Exact match “Talbott Associates, Inc,(TAI) is a multi-disciplined consulting engineering firm, providing unbiased, independent professional opinions based upon sound engineering principles for…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Allstructure Engineering, LLC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
14	Northwest Watersheds	Exact match	Portland, United StatesHQ recorded Oct 1, 2026	1-10	7 contacts →
	Exact match “Northwest Watersheds LLC provides water resources engineering services to protect communities, restore habitat, and provide climate resiliency.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Base Design Group, INC	Exact match	Portland, ME, United StatesHQ recorded Oct 1, 2026	11-50	7 contacts →
	Exact match “BASE DESIGN GROUP is a full-service structural engineering consulting firm providing design, analysis and evaluation of buildings and special structures throughout the northeast…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Strata Design LLC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	1-10	7 contacts →
	Exact match “Our experienced geotechnical engineering team at Strata Design is proud celebrate 10 years of continuous growth in providing innovate and timely solutions for site development.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Arris Consulting	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	1-10	6 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Abht Structural Engineers	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	11-50	4 contacts →
	Exact match “ABHT Structural Engineers is a full service structural consulting firm located in Portland, Oregon.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Greenfield Geotechnical LLC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	1-10	4 contacts →
	Exact match “Greenfield Geotechnical is an Emerging Small Business (No.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Horn Consulting Engineers	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	1-10	4 contacts →
	Exact match “Horn Consulting Engineers LLC is a full-service structural engineering firm founded in 2007.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Madden & Baughman Engineering, INC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	1-10	3 contacts →
	Exact match “Madden & Baughman Engineering is a structural engineering and consulting firm that focuses on high design in the pursuit of architectural accomplishment and economy since 2005.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	James G. Pierson INC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	1-10	3 contacts →
	Exact match “Formed in 1945 as Pierson & Tidball, the firm originally provided Civil/Structural and Mechanical Engineering.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	DON Cushing Associates	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “Providing general civil for architects, developers, cities.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	E-Pur	Exact match	Portland, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “E-PUR provides client-focused hydrologic, geologic, engineering, and environmental consulting services on a wide range of water resource and water supply projects.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Hyatt Geosciences, LLC	Exact match	Portland, OR, United StatesHQ recorded Oct 1, 2026	1-10	1 contacts →
	Exact match “Hyatt GeoSciences LLC (HGS) is an employee-owned consulting firm with over 20 years of experience providing client-focused geology and hydrogeology services for environmental…” 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 “geotechnical consulting 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 25 of 42 geotechnical consulting firms based in Portland, United States

See the full list, filter by size, metro and specialty, and access 306 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geotechnical consulting firms based in Portland, United States at a glance

As of Oct 1, 2026

52.6%Verified-email coverage

13.9Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 42 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 “geotechnical consulting 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 306 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.

Geotechnical consulting 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 “geotechnical consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geotechnical consulting firms are there based in Portland, United States?

RevenueBase identified 42 company matches for geotechnical consulting firms associated with Portland, 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?

Harper Houf Peterson Righellis 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 geotechnical consulting firms?

Houston leads the United States with 198 company records, followed by New York (109) and Austin (76). Portland has 42.

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 306 professional contacts with verified work emails tracked across these 42 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.

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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.