Company lists · Data refreshed September 2026

Top 25 Decarbonization consultancies based in Portland, United States

Name: Decarbonization consultancies based in Portland, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 48 companies tracked

RevenueBase identified 48 decarbonization consultancies headquartered in Portland, United States as of September 2026 and tracks 524 professional contacts across them, including 371 with verified work emails. Across the United States, New York is the largest hub for this category (207 companies); Portland has 48.

This list covers decarbonization consultancies 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 28, 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 28, 2026 86% judged on-target in blind review

48Companies

524Contacts tracked

371Verified emails

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The 25 largest decarbonization consultancies based in Portland, United States

Ranked by team size

Top 25 of 48 decarbonization consultancies based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to decarbonization consultancies: 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	Cascade Energy	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	201-500	288 contacts →
	Indirect evidence “At Cascade Energy, we believe in better.” Source: RevenueBase Database · checked Sep 28, 2026
2	Brightworks Sustainability	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 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 28, 2026
3	Competitive Energy Services	Indirect evidence	Portland, ME, United StatesHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “Founded in by career energy professionals, Competitive Energy Services, LLC (CES) has been on the forefront of energy procurement since the advent of deregulation.” Source: RevenueBase Database · checked Sep 28, 2026
4	Energy GPS LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	24 contacts →
	Indirect evidence “Energy GPS LLC was formed in 2009 with the goal of providing analysis and advice to clients in the energy industry.” Source: RevenueBase Database · checked Sep 28, 2026
5	Strategic Energy Group	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 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 28, 2026
6	Triplewin Advisory	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect 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 28, 2026
7	Mccullough Research	Indirect evidence	Portland, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “McCullough Research is an independent energy economics and research consulting firm based in Portland, Oregon.” Source: RevenueBase Database · checked Sep 28, 2026
8	Creative Renewable Solutions, LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 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 28, 2026
9	Gordian Knot Strategies	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “At Gordian Knot Strategies, we are expert climate finance consultants.” Source: RevenueBase Database · checked Sep 28, 2026
10	Res-Intel	Partial evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “Res-Intel is a national technology leader for advancing equitable building decarbonization.” Source: RevenueBase Database · checked Sep 28, 2026
11	Siler Climate Consulting	Indirect evidence	Portland, ME, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Siler Climate Consulting works with clients to imagine and facilitate climate plans, projects, and programs that realize the transformative potential of climate action while…” Source: RevenueBase Database · checked Sep 28, 2026
12	Alder & CO	Indirect evidence	Portland, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
13	Anchor Blue Consulting, LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 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 28, 2026
14	Cleanfuture, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “CleanFuture is a consulting firm providing business and technical expertise in supply chain, sustainability, the combination of sustainability + supply chain, and a specialized…” Source: RevenueBase Database · checked Sep 28, 2026
15	Minerva Ventures	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “OUR MISSION We believe that economic success requires a stable climate and healthy ecosystems to enable robust markets, access to materials, transportation, energy, food, water…” Source: RevenueBase Database · checked Sep 28, 2026
16	Spring Forward LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 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 28, 2026
17	Woodsong Associates	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “At the intersection of urban planning, big data, and carbon accounting, Woodsong Associates provides solutions to the multiple crises we face, with a focus on the interplay…” Source: RevenueBase Database · checked Sep 28, 2026
18	Rouj Energy Analytics	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Rouj Energy Analytics is a rapidly growing, cleantech firm providing leading-edge, cost-effective energy efficiency and data analytics solutions for its clients.” Source: RevenueBase Database · checked Sep 28, 2026
19	Brazen Story CO	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Brazen- adj:marked by shameless or disrespectful boldness // “a /brazen/ disregard for the rules.” You have big, bold ideas.” Source: RevenueBase Database · checked Sep 28, 2026
20	Carbon Solutions Northwest LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
21	Brockman Climate Strategies	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 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 28, 2026
22	Summer Bunker	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Summer Bunker is a Portland, Oregon-based brand and strategic marketing consultancy founded by Sarah Costello and powered by a community of world-class strategists, designers…” Source: RevenueBase Database · checked Sep 28, 2026
23	Uplevel Energy	Partial evidence	Portland, OR, United StatesHQ checked Sep 28, 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 28, 2026
24	Climbsmart Strategies	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “ClimbSmart Strategies specializes in guiding organizations through the complexities of change to drive purpose-forward and sustainable transformations.” Source: RevenueBase Database · checked Sep 28, 2026
25	EP Group LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “FLexible Energy xChange (FLEX) Markets use a two-part retail tariff design that 1) establishes symmetrically priced, buy/sell, tenders that create incentives for electrical end…” Source: RevenueBase Database · checked Sep 28, 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: decarbonization consultancies. 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 decarbonization consultancies.
Partial evidence: Its own public description names part of decarbonization consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name decarbonization consultancies. 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 48 decarbonization consultancies based in Portland, United States

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Decarbonization consultancies based in Portland, United States at a glance

As of Sep 28, 2026

70.8%Verified-email coverage

10.9Average contacts per company

1-10Median size (employees)

Sep 28, 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 48 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 decarbonization consultancies, 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 “decarbonization consultancies”. 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 decarbonization consultancies), 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 decarbonization consultancies, 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, 371 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 28, 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.

Decarbonization consultancies 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 decarbonization consultancies, 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 decarbonization consultancies are there based in Portland, United States?

RevenueBase identified 48 decarbonization consultancies 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?

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

Which city in the United States has the most decarbonization consultancies?

New York leads the United States with 207 headquartered companies, followed by Houston (198) and Washington (88). Portland has 48.

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 371 verified decision-maker contacts tracked across these 48 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 28, 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.