Company lists · Data refreshed September 2026

Top 25 Environmental design firms based in Portland, United States

Name: Environmental design 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 184 companies tracked

RevenueBase identified 184 environmental design firms headquartered in Portland, United States as of September 2026 and tracks 3,858 professional contacts across them, including 2,010 with verified work emails. New York is the largest hub.

This list covers environmental design 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 19, 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 19, 2026 86% judged on-target in blind review

184Companies

3,858Contacts tracked

2,010Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest environmental design firms based in Portland, United States

Ranked by team size

Top 25 of 184 environmental design firms based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental design 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	ZGF Architects	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	501-1,000	829 contacts →
	Indirect evidence “With our origins in Oregon, attention to craft and beauty is elemental to the ZGF culture.” Source: RevenueBase Database · checked Sep 19, 2026
2	PAE	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	201-500	744 contacts →
	Partial evidence “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Source: RevenueBase Database · checked Sep 19, 2026
3	Ankrom Moisan	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	201-500	243 contacts →
	Partial evidence “How can design shape what matters, awaken places, advocate for a better future?” Source: RevenueBase Database · checked Sep 19, 2026
4	Smrt Architects & Engineers	Partial evidence	Portland, ME, United StatesHQ checked Sep 19, 2026	51-200	156 contacts →
	Partial evidence “SMRT is a full-service architecture, engineering, planning, interiors and energy firm that specializes in the design of sustainable and complex, 24/7 buildings for healthcare…” Source: RevenueBase Database · checked Sep 19, 2026
5	Allied Engineering	Indirect evidence	Portland, ME, United StatesHQ checked Sep 19, 2026	11-50	135 contacts →
	Indirect evidence “Allied Engineering (AEI) is now Salas O'Brien.” Source: RevenueBase Database · checked Sep 19, 2026
6	Sera Architects	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	51-200	134 contacts →
	Partial evidence “Portland, OR + Oakland, CA SERA is a firm of dynamic thinkers, collaborators and creators who want to shape the world through smart planning and enduring design.” Source: RevenueBase Database · checked Sep 19, 2026
7	Bora Architecture & Interiors	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	51-200	118 contacts →
	Partial evidence “Bora is an award-winning design practice based in Portland, Oregon, providing services in architecture, interior design, and planning across the nation.” Source: RevenueBase Database · checked Sep 19, 2026
8	Hennebery Eddy Architects	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	51-200	113 contacts →
	Partial evidence “We are thoughtful architects, planners, interior designers, and preservationists who create spaces where people gather, work, learn, and recreate.” Source: RevenueBase Database · checked Sep 19, 2026
9	GBD Architects	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	51-200	113 contacts →
	Indirect evidence “WE MAKE BUILDINGS THAT WORK HARD.” Source: RevenueBase Database · checked Sep 19, 2026
10	Walker Macy	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	64 contacts →
	Partial evidence “Walker Macy is recognized as a leader in landscape architecture, urban design and planning.” Source: RevenueBase Database · checked Sep 19, 2026
11	Opsis Architecture	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	51-200	62 contacts →
	Partial evidence “Based in Portland, Oregon, Opsis Architecture was established in Our mission is to advance our client's vision with inclusive and inspired design elevating the human experience…” Source: RevenueBase Database · checked Sep 19, 2026
12	Greenworks	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	52 contacts →
	Indirect evidence “Since 1987 GreenWorks has provided a broad range of services for clients in the Pacific Northwest and beyond.” Source: RevenueBase Database · checked Sep 19, 2026
13	FFA Architecture And Interiors, INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	47 contacts →
	Partial evidence “Since 1956, FFA Architecture and Interiors (FFA) has focused on providing architecture, interior design, and planning services to the Pacific Northwest through beautiful…” Source: RevenueBase Database · checked Sep 19, 2026
14	SRG Cannondesign	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	51-200	46 contacts →
	Indirect evidence “Founded in 1972, SRG Partnership is a full-service architecture, planning and interiors firm with offices in Portland, Oregon, and Seattle, Washington.” Source: RevenueBase Database · checked Sep 19, 2026
15	Soderstrom Architects	Strong evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	45 contacts →
	Strong evidence “Founded in 1984, Soderstrom Architects is a multidisciplinary design firm creating thoughtful, human-centered environments that strengthen communities and support long-term…” Source: RevenueBase Database · checked Sep 19, 2026
16	Lever Architecture	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	36 contacts →
	Partial evidence “LEVER Architecture, based in Portland, Oregon, and Los Angeles, California, is at the forefront of design excellence and material innovation.” Source: RevenueBase Database · checked Sep 19, 2026
17	Acorn Engineering, INC	Indirect evidence	Portland, ME, United StatesHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
18	Skylab Architecture	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “Established over two decades ago in Portland, Oregon, we are band of makers, curious, industrious and experimental.” Source: RevenueBase Database · checked Sep 19, 2026
19	Landscape East & West	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	51-200	33 contacts →
	Indirect evidence “Since 1980, Landscape East & West has been one of the leaders in creating and maintaining unique, award-winning outdoor living spaces in the Portland Metro area.” Source: RevenueBase Database · checked Sep 19, 2026
20	YGH	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	51-200	32 contacts →
	Indirect evidence “Integrus Architecture and YGH Architecture came together in June 2022 to practice as one unified firm.” Source: RevenueBase Database · checked Sep 19, 2026
21	Cida Architecture Engineering Planning Interiors	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “CIDA Inc.” Source: RevenueBase Database · checked Sep 19, 2026
22	FB Environmental Associates	Partial evidence	Portland, ME, United StatesHQ checked Sep 19, 2026	11-50	28 contacts →
	Partial evidence “Where Science Meets Civics" Our Mission: FB Environmental is dedicated to practical stewardship of our natural world.” Source: RevenueBase Database · checked Sep 19, 2026
23	Clark Kjos Architects	Strong evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	25 contacts →
	Strong evidence “CKA is a unique group of professionals highly focused on architecture for health (with a wide range of project types), healthy environments, sustainable design practices…” Source: RevenueBase Database · checked Sep 19, 2026
24	Mayer Reed, INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	24 contacts →
	Partial evidence “Based in Portland, Oregon, Mayer/Reed is a nationally recognized, interdisciplinary design firm providing landscape architecture, urban design and visual communications.” Source: RevenueBase Database · checked Sep 19, 2026
25	Drake's 7 Dees Landscaping	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “At Drakes’ 7 Dees we know what an impact our outdoor spaces can have on our lives.” Source: RevenueBase Database · checked Sep 19, 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: environmental design 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 environmental design firms.
Partial evidence: Its own public description names part of environmental design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental design 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 184 environmental design firms based in Portland, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,010 reachable decision-makers.

Free signup · no credit card

View the full list →

Environmental design firms based in Portland, United States at a glance

As of Sep 19, 2026

52.1%Verified-email coverage

21.0Average contacts per company

1-10Median size (employees)

300.5%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

120

11-50

51-200

201-500

501-1,000

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 184 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 environmental design 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 “environmental design 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 environmental design 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 environmental design 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, 2,010 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 19, 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.

Environmental design 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 environmental design 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 environmental design firms are there based in Portland, United States?

RevenueBase identified 184 environmental design 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?

ZGF Architects, headquartered in Portland, tops this list with the largest team on record.

Which city has the most environmental design firms?

New York leads with 553 headquartered companies, followed by Los Angeles (272) and Chicago (205).

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 2,010 verified decision-maker contacts tracked across these 184 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 184 environmental design firms based in Portland, United States. Start with a free account, no credit card.

Download this list →

Related lists

Environmental design firms by geography

Browse the directory

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.