Company lists · Data refreshed September 2026

Top 25 Sustainable design consultants based in Portland, United States

Name: Sustainable design consultants based in Portland, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 84 companies tracked

RevenueBase identified 84 sustainable design consultants headquartered in Portland, United States as of September 2026 and tracks 1,727 professional contacts across them, including 824 with verified work emails. New York is the largest hub.

This list covers sustainable design consultants 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 22, 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 22, 2026 86% judged on-target in blind review

84Companies

1,727Contacts tracked

824Verified emails

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The 25 largest sustainable design consultants based in Portland, United States

Ranked by team size

Top 25 of 84 sustainable design consultants based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable design consultants: 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	PAE	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 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 22, 2026
2	Cascade Energy	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	201-500	288 contacts →
	Indirect evidence “At Cascade Energy, we believe in better.” Source: RevenueBase Database · checked Sep 22, 2026
3	Allied Engineering	Indirect evidence	Portland, ME, United StatesHQ checked Sep 22, 2026	11-50	135 contacts →
	Indirect evidence “Allied Engineering (AEI) is now Salas O'Brien.” Source: RevenueBase Database · checked Sep 22, 2026
4	GBD Architects	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	51-200	113 contacts →
	Indirect evidence “WE MAKE BUILDINGS THAT WORK HARD.” Source: RevenueBase Database · checked Sep 22, 2026
5	Brightworks Sustainability	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	51-200	61 contacts →
	Partial evidence “Recognized for advanced subject matter expertise, wide-ranging technical resources, creative problem-solving, and excellence in professional practice, Brightworks Sustainability…” Source: RevenueBase Database · checked Sep 22, 2026
6	FFA Architecture And Interiors, INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 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 22, 2026
7	Lever Architecture	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 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 22, 2026
8	Clark Kjos Architects	Strong evidence	Portland, OR, United StatesHQ checked Sep 22, 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 22, 2026
9	Cascadia Partners	Strong evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	20 contacts →
	Strong evidence “Cascadia Partners are a multi-disciplinary team with decades of experience in planning, design, development finance, sustainability, project management, and community engagement.” Source: RevenueBase Database · checked Sep 22, 2026
10	Kaplan Thompson Architects	Indirect evidence	Portland, ME, United StatesHQ checked Sep 22, 2026	11-50	18 contacts →
	Indirect evidence “Beauty.” Source: RevenueBase Database · checked Sep 22, 2026
11	Leland Consulting Group	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	1-10	14 contacts →
	Indirect evidence “At Leland Consulting Group, we specialize in working with clients to create quality development and redevelopment projects that are financially viable and foster a greater sense…” Source: RevenueBase Database · checked Sep 22, 2026
12	Waterleaf Architecture	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “Waterleaf has been active in the Northwest since 1952, focusing on four areas - commercial, transportation/industrial, medical/dental, and community.” Source: RevenueBase Database · checked Sep 22, 2026
13	JRA Green Building	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	9 contacts →
	Indirect evidence “JRA Green Building is a family owned company based in Portland, Oregon.” Source: RevenueBase Database · checked Sep 22, 2026
14	Triplewin Advisory	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	1-10	8 contacts →
	Partial evidence “Everyone is too aware of the dangers of ignoring sustainability, but are you aware of the range of advantages in a proper sustainability strategy?” Source: RevenueBase Database · checked Sep 22, 2026
15	Octopus Restoration And Remodeling LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	1-10	8 contacts →
	Indirect evidence “At OPM, we are committed to delivering high-quality Advisory and construction services that exceed our clients' expectations.” Source: RevenueBase Database · checked Sep 22, 2026
16	Birdsmouth Design-Build	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	7 contacts →
	Partial evidence “A recognized leader in high-performance building and design, Birdsmouth creates zero-energy buildings that are healthier, more comfortable, and more resilient than the industry…” Source: RevenueBase Database · checked Sep 22, 2026
17	Creative Renewable Solutions, LLC	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	1-10	6 contacts →
	Partial evidence “Creative Renewable Solutions is a clean energy consulting firm that helps businesses, utilities, and clean energy developers achieve their unique sustainability and performance…” Source: RevenueBase Database · checked Sep 22, 2026
18	Woofter Bolch Architecture	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	1-10	6 contacts →
	Partial evidence “Based in Portland, Oregon, Woofter Bolch Architecture is a collaborative design practice equally committed to providing excellent design and outstanding client service.” Source: RevenueBase Database · checked Sep 22, 2026
19	Emerick Architects	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	6 contacts →
	Indirect evidence “Emerick Architects is a Portland-based commercial and residential architecture firm founded in by principals Melody and Brian Emerick.” Source: RevenueBase Database · checked Sep 22, 2026
20	Harka Architecture, LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	1-10	6 contacts →
	Indirect evidence “Harka was founded with an inquisitive spirit and lofty objective: to create beautiful and inspiring spaces that possess the lowest carbon footprint possible while empowering their…” Source: RevenueBase Database · checked Sep 22, 2026
21	Briburn	Indirect evidence	Portland, ME, United StatesHQ checked Sep 22, 2026	1-10	5 contacts →
	Indirect evidence “BRIBURN is committed to creating innovative, energy efficient, and environmentally sound solutions, for residential, commercial, institutional, and civic projects, that artfully…” Source: RevenueBase Database · checked Sep 22, 2026
22	Fieldwork Design & Architecture	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	1-10	5 contacts →
	Indirect evidence “Fieldwork is based in Portland, Oregon, and was founded in 2011.” Source: RevenueBase Database · checked Sep 22, 2026
23	MCA Architects, PC	Partial evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	11-50	5 contacts →
	Partial evidence “Since its establishment in 1974, MCA Architects has earned a reputation for consistent delivery of outstanding design, on time and within budget.” Source: RevenueBase Database · checked Sep 22, 2026
24	Ehns Partners	Indirect evidence	Portland, ME, United StatesHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “EHNS Partners is a small dedicated team specializing in environmental, health, and safety consulting and engineering.” Source: RevenueBase Database · checked Sep 22, 2026
25	Northwest Energy Collaborative	Indirect evidence	Portland, OR, United StatesHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “Northwest Energy Collaborative is a Green Building Consulting Firm that applies high performance building improvement methods and extensive construction knowledge to help…” Source: RevenueBase Database · checked Sep 22, 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: sustainable design consultants. 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 sustainable design consultants.
Partial evidence: Its own public description names part of sustainable design consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable design consultants. 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 84 sustainable design consultants based in Portland, United States

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Sustainable design consultants based in Portland, United States at a glance

As of Sep 22, 2026

47.7%Verified-email coverage

20.6Average contacts per company

1-10Median size (employees)

303.6%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 84 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 sustainable design consultants, 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 “sustainable design consultants”. 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 sustainable design consultants), 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 sustainable design consultants, 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, 824 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 22, 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.

Sustainable design consultants 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 sustainable design consultants, 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 sustainable design consultants are there based in Portland, United States?

RevenueBase identified 84 sustainable design consultants 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?

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

Which city has the most sustainable design consultants?

New York leads with 255 headquartered companies, followed by Chicago (105) and Houston (87).

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 824 verified decision-maker contacts tracked across these 84 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 22, 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 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.