Company lists · Data refreshed September 2026

Top 22 Scientific consulting firms based in Portland, United States

Name: Scientific 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 Sep 14, 2026 46 companies tracked

RevenueBase identified 46 company matches for scientific consulting firms associated with Portland, United States as of September 2026 and tracks 319 professional contacts across them, including 101 with verified work emails. Across the United States, Houston is the largest hub for this category (182 companies); Portland has 46.

This list covers company matches for scientific 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 September 14, 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 14, 2026 How this list was built

46Companies

319Contacts tracked

101Verified emails

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The 22 largest scientific consulting firms based in Portland, United States

Ranked by team size

Top 22 of 46 company matches for scientific consulting firms based in Portland, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 14, 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	GSI Water Solutions, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 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 · Sep 14, 2026 · View company records in RevenueBase
2	Market Decisions Research	Exact match	Portland, ME, United StatesHQ recorded Sep 14, 2026	11-50	45 contacts →
	Exact match “Market Decisions Research is a public policy research and consulting firm.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
3	Samara Group PDX	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	19 contacts →
	Exact match “Samara Group LLC was founded to enhance environmental projects centered around rigorous science, inclusive partnerships, and effective communications.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
4	Safety Management Systems, LLC	Exact match	Portland, ME, United StatesHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
5	Summit Water Resources	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	12 contacts →
	Exact match “Summit Water Resources has more than 100 years of combined experience in the development of municipal, agricultural, and industrial groundwater supply, aquifer storage and…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
6	Evren Northwest, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	11-50	10 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
7	Talbott Associates INC	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 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 · Sep 14, 2026 · View company records in RevenueBase
8	Ehns Partners	Exact match	Portland, ME, United StatesHQ recorded Sep 14, 2026	1-10	4 contacts →
	Exact match “EHNS Partners is a small dedicated team specializing in environmental, health, and safety consulting and engineering.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
9	EES Environmental Consulting INC	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	4 contacts →
	Exact match “EES is a unique team of professional consultants specializing in environmental assessment, investigation, and cleanup services.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
10	QW Consulting, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	3 contacts →
	Exact match “At QW Consulting we provide innovative and economical solutions in response to clients’ information management, translation, systems support, and communication needs.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
11	Aquarius Environmental, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	3 contacts →
	Exact match “Aquarius Environmental is an environmental engineering and consulting firm specializing in water related design, treatment, and compliance.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
12	Gneiss Editing	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	2 contacts →
	Exact match “Gneiss Editing is a full-service editing, writing and science communications firm.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
13	Integrative Economics, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	2 contacts →
	Exact match “We are building a transdisciplinary team to help tackle pest and disease challenges in agriculture.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
14	E-Pur	Exact match	Portland, United StatesHQ recorded Sep 14, 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 · Sep 14, 2026 · View company records in RevenueBase
15	Ferment Service	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	2 contacts →
	Exact match “Ferment Service provides fractional and T&M engineering consulting to CPG manufacturers, food and beverage producers, and industrial clients.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
16	Cavender Marine Consulting, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	11-50	1 contacts →
	Exact match “Cavender Marine Consulting is a Company which applies its talents, expertise, and experiences to assist the client in marine industry.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
17	The Mccarron Group	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	1 contacts →
	Exact match “The McCarron Group is a health and medical consulting group formed by health professionals from academia.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
18	Veritas LAB Consulting	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	1 contacts →
	Exact match “Veritas Lab Consulting, LLC (VLC) was founded based on a desire to provide laboratories with trusted, competent, and compliant laboratory support.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
19	Hyatt Geosciences, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 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 · Sep 14, 2026 · View company records in RevenueBase
20	OWL Research Partners	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	1 contacts →
	Exact match “We support strategic decision‑making through a range of research, analysis and storytelling services, tailored to your questions, context and goals, including: • Market…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
21	Justin B. Green Consulting	Exact match	Portland, OR, United StatesHQ recorded Sep 14, 2026	1-10	1 contacts →
	Exact match “Solutions-Oriented Consultancy Providing Environment, Energy, and Government Consulting.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
22	Mcfadden Environmental LLC	Exact match	Portland, ME, United StatesHQ recorded Sep 14, 2026	1-10	1 contacts →
	Exact match “McFadden Environmental is an environmental consulting firm based in Portland Maine.” Recorded in the RevenueBase company graph · Sep 14, 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 “scientific 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 22 of 46 scientific consulting firms based in Portland, United States

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

As of Sep 14, 2026

31.7%Verified-email coverage

6.9Average contacts per company

1-10Median size (employees)

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 46 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 “scientific 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 101 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 14, 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.

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

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

RevenueBase identified 46 company matches for scientific consulting 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?

GSI Water Solutions, 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 scientific consulting firms?

Houston leads the United States with 182 company records, followed by New York (125) and San Diego (95). Portland has 46.

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 101 professional contacts with verified work emails tracked across these 46 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 14, 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.