Company lists · Data refreshed September 2026

Top 20 Environmental research and advocacy organizations based in Portland, United States

Name: Environmental research and advocacy organizations 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 35 companies tracked

RevenueBase identified 35 company matches for environmental research and advocacy organizations associated with Portland, United States as of September 2026 and tracks 1,003 professional contacts across them, including 189 with verified work emails. Across the United States, Washington is the largest hub for this category (118 companies); Portland has 35.

This list covers company matches for environmental research and advocacy organizations 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

35Companies

1,003Contacts tracked

189Verified emails

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The 20 largest environmental research and advocacy organizations based in Portland, United States

Ranked by team size

Top 20 of 35 company matches for environmental research and advocacy organizations 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	Biodiversity Research Institute	Exact match	Portland, ME, United StatesHQ recorded Sep 19, 2026	51-200	82 contacts →
	Exact match “Our mission is to advance the understanding of biodiversity and their ecosystems by conducting independent science that informs decision-making and supports the conservation and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	The Freshwater Trust	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	51-200	58 contacts →
	Exact match “The Freshwater Trust is focused on using insight to solve problems at the intersection of water and the economy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Oregon Environmental Council	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	30 contacts →
	Exact match “Oregon Environmental Council brings Oregonians together to protect the water, air, and land we all share and love.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	FB Environmental Associates	Exact match	Portland, ME, United StatesHQ recorded Sep 19, 2026	11-50	28 contacts →
	Exact match “Where Science Meets Civics" Our Mission: FB Environmental is dedicated to practical stewardship of our natural world.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Environment Oregon	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	25 contacts →
	Exact match “Environment Oregon advocates on behalf of its more than members for clean air, clean water, and open space.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Samara Group PDX	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
7	Ecology In Classrooms & Outdoors ECO	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	15 contacts →
	Exact match “Ecology in Classrooms and Outdoors (ECO) is a tax-exempt, non-profit organization dedicated to presenting hands-on, ecology-based enrichment learning opportunities that are an…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Crag LAW Center	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	14 contacts →
	Exact match “Crag Law Center is an environmental nonprofit based in Portland, Oregon that provides free and low cost legal services to conservation groups, grassroots activists, and Tribes…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Willamette Partnership	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	14 contacts →
	Exact match “Willamette Partnership is a conservation nonprofit based in Portland, Oregon.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Oregon League Of Conservation Voters	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	13 contacts →
	Exact match “OLCV works to protect Oregon's natural legacy, elect pro-environment candidates, and hold our elected officials accountable.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Defend Them ALL	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	9 contacts →
	Exact match “Our Mission The Defend Them All Foundation (DTA) is a 501(c)(3) nonprofit working to secure a better future for all animals and their habitats by preserving the symbiotic…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Earthrise LAW Center	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	8 contacts →
	Exact match “Earthrise’s mission is to preserve the environment by providing expert, pro bono legal services for conservation groups, and training highly talented law students through direct…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Defend OUR Health	Exact match	Portland, ME, United StatesHQ recorded Sep 19, 2026	1-10	7 contacts →
	Exact match “Defend Our Health is a Maine-based nonprofit organization that works to create a world where all people are thriving, with equal access to safe food and drinking water, healthy…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Oregon Physicians For Social Responsibility	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	7 contacts →
	Exact match “Guided by the values and expertise of healthcare and public health, Oregon PSR works to protect human life from the gravest threats to health and survival by striving to protect…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Sierra Club Maine	Exact match	Portland, ME, United StatesHQ recorded Sep 19, 2026	1-10	6 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Gray Family Foundation Portland, OR	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	3 contacts →
	Exact match “The Gray Family Foundation is founded on the belief that fostering an understanding and appreciation of our natural world is a crucial part of a child’s education.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	KWA Ecological Sciences, Inc. And KWA Documentary Films, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	1 contacts →
	Exact match “KWA Ecological Sciences, Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Jubitz Family Foundation	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Northwest Environmental Advocates	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “Established in 1969 our mission is to work through advocacy and education to protect and restore water and air quality, wetlands, and wildlife habitat.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Northwest Environmental Defense Center	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “NEDC enforces environmental laws to hold regulators and companies accountable and to preserve and protect the natural environment of the Pacific Northwest.” 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 “environmental research and advocacy organizations”. 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 20 of 35 environmental research and advocacy organizations based in Portland, United States

See the full list, filter by size, metro and specialty, and access 189 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental research and advocacy organizations based in Portland, United States at a glance

As of Sep 19, 2026

18.8%Verified-email coverage

28.7Average contacts per company

1-10Median size (employees)

Sep 19, 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 35 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 “environmental research and advocacy organizations” 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 189 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.

Environmental research and advocacy organizations 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 “environmental research and advocacy organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental research and advocacy organizations are there based in Portland, United States?

RevenueBase identified 35 company matches for environmental research and advocacy organizations 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?

Biodiversity Research Institute 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 environmental research and advocacy organizations?

Washington leads the United States with 118 company records, followed by New York (67) and San Francisco (42). Portland has 35.

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 189 professional contacts with verified work emails tracked across these 35 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.