Company lists · Data refreshed September 2026

Top 24 Building decarbonization companies based in Portland, United States

Name: Building decarbonization companies based in Portland, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 31 companies tracked

RevenueBase identified 31 building decarbonization companies headquartered in Portland, United States as of September 2026 and tracks 1,730 professional contacts across them, including 785 with verified work emails. New York is the largest hub.

This list covers building decarbonization companies 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 16, 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 16, 2026 86% judged on-target in blind review

31Companies

1,730Contacts tracked

785Verified emails

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The 24 largest building decarbonization companies based in Portland, United States

Ranked by team size

Top 24 of 31 building decarbonization companies based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building decarbonization companies: 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	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	201-500	744 contacts →
	Indirect evidence “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Source: RevenueBase Database · checked Sep 16, 2026
2	Cascade Energy	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	201-500	288 contacts →
	Indirect evidence “At Cascade Energy, we believe in better.” Source: RevenueBase Database · checked Sep 16, 2026
3	Interface Engineering, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	201-500	259 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
4	Allied Engineering	Indirect evidence	Portland, ME, United StatesHQ checked Sep 16, 2026	11-50	135 contacts →
	Indirect evidence “Allied Engineering (AEI) is now Salas O'Brien.” Source: RevenueBase Database · checked Sep 16, 2026
5	Brightworks Sustainability	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	51-200	61 contacts →
	Indirect 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 16, 2026
6	Energy 350, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	51-200	60 contacts →
	Indirect evidence “Energy 350 takes pride in performing high quality energy studies and energy efficiency related services for end users as well as program administrators.” Source: RevenueBase Database · checked Sep 16, 2026
7	NEW Buildings Institute	Partial evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	11-50	48 contacts →
	Partial evidence “New Buildings Institute (NBI) is a nonprofit organization working to improve the energy performance of commercial buildings.” Source: RevenueBase Database · checked Sep 16, 2026
8	Burch Energy Services INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	11-50	23 contacts →
	Indirect evidence “Burch Energy is a COBID-certified, minority-owned energy engineering firm based in Portland, Oregon.” Source: RevenueBase Database · checked Sep 16, 2026
9	Stillwater Energy	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	22 contacts →
	Indirect evidence “Descending from the Beartooth Mountains in Yellowstone, Montana’s Stillwater River inspires all who see it.” Source: RevenueBase Database · checked Sep 16, 2026
10	Strategic Energy Group	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “Our mission is to provide environmentally responsible resource management that creates a competitive advantage for our clients and to provide a rewarding work environment for our…” Source: RevenueBase Database · checked Sep 16, 2026
11	Community Energy Labs	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	12 contacts →
	Strong evidence “HARNESSING POWER FOR GOOD CEL’s modern building control solutions make smart energy management and decarbonization both accessible and affordable for community building owners.” Source: RevenueBase Database · checked Sep 16, 2026
12	System Design Consultants, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	11-50	9 contacts →
	Indirect evidence “System Design Consultants, Inc.(SDC), is celebrating 35 years in the Portland design community, providing mechanical and electrical engineering services for commercial and…” Source: RevenueBase Database · checked Sep 16, 2026
13	Creative Renewable Solutions, LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	6 contacts →
	Indirect 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 16, 2026
14	Res-Intel	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	6 contacts →
	Strong evidence “Res-Intel is a national technology leader for advancing equitable building decarbonization.” Source: RevenueBase Database · checked Sep 16, 2026
15	Briburn	Indirect evidence	Portland, ME, United StatesHQ checked Sep 16, 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 16, 2026
16	Anchor Blue Consulting, LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	4 contacts →
	Indirect evidence “Anchor Blue LLC is a small energy consulting firm specializing in services related to energy efficiency, renewable energy, demand response and other demand side management…” Source: RevenueBase Database · checked Sep 16, 2026
17	Northwest Energy Collaborative	Partial evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	4 contacts →
	Partial 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 16, 2026
18	Spring Forward LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence “Spring Forward LLC is a woman-owned sustainability consulting firm based out of Portland, Oregon.” Source: RevenueBase Database · checked Sep 16, 2026
19	Brockman Climate Strategies	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Indirect evidence “I am focused on applying my 40+ year architectural experience to help decarbonize the built environment through three areas of service- Strategic Facilitation - Policy and…” Source: RevenueBase Database · checked Sep 16, 2026
20	Architectural Applications P.C	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Indirect evidence “a2) is an engineering, architecture and product design consultancy dedicated to developing smarter and more elegant solutions for the use of resources in our natural and built…” Source: RevenueBase Database · checked Sep 16, 2026
21	Uplevel Energy	Partial evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial evidence “Uplevel Energy provides targeted and specialized expertise in the energy and decarbonization sector.” Source: RevenueBase Database · checked Sep 16, 2026
22	A Inman Consulting, LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Indirect evidence “A Inman Consulting specializes in delivering a comprehensive suite of services designed to empower our clients in the realm of energy efficiency.” Source: RevenueBase Database · checked Sep 16, 2026
23	Portland Home Energy Score, LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Indirect evidence “Portland Home Energy Score Is A Home Energy Consulting Firm And Part of the NW Energy Collaborative (NWECB.com).” Source: RevenueBase Database · checked Sep 16, 2026
24	Propel Clean Energy Partners	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Indirect evidence “Propel Clean Energy Partners is a strategic advisory services firm dedicated to helping public, private and civil society organizations make the greatest possible impact in the…” Source: RevenueBase Database · checked Sep 16, 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: building decarbonization companies. 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 building decarbonization companies.
Partial evidence: Its own public description names part of building decarbonization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building decarbonization companies. 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 24 of 31 building decarbonization companies based in Portland, United States

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Building decarbonization companies based in Portland, United States at a glance

As of Sep 16, 2026

45.4%Verified-email coverage

55.8Average contacts per company

1-10Median size (employees)

587.1%Largest-city concentration · New York

Sep 16, 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 31 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 building decarbonization companies, 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 “building decarbonization companies”. 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 building decarbonization companies), 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 building decarbonization companies, 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, 785 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 16, 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.

Building decarbonization companies 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 building decarbonization companies, 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 building decarbonization companies are there based in Portland, United States?

RevenueBase identified 31 building decarbonization companies 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 building decarbonization companies?

New York leads with 182 headquartered companies, followed by Houston (89) and Chicago (58).

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 785 verified decision-maker contacts tracked across these 31 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 16, 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.