Company lists · Data refreshed September 2026

Top 25 Energy engineering consulting companies based in Portland, United States

Name: Energy engineering consulting 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 37 companies tracked

RevenueBase identified 37 energy engineering consulting companies headquartered in Portland, United States as of September 2026 and tracks 1,714 professional contacts across them, including 786 with verified work emails. Houston is the largest hub.

This list covers energy engineering consulting 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

37Companies

1,714Contacts tracked

786Verified emails

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The 25 largest energy engineering consulting companies based in Portland, United States

Ranked by team size

Top 25 of 37 energy engineering consulting 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 energy engineering consulting 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	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	201-500	744 contacts →
	Strong 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	Partial evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	201-500	288 contacts →
	Partial 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	Partial evidence	Portland, ME, United StatesHQ checked Sep 16, 2026	11-50	135 contacts →
	Partial 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	Partial evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	51-200	60 contacts →
	Partial 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	Competitive Energy Services	Partial evidence	Portland, ME, United StatesHQ checked Sep 16, 2026	11-50	40 contacts →
	Partial 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 16, 2026
8	Burch Energy Services INC	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	11-50	23 contacts →
	Strong evidence “Burch Energy is a COBID-certified, minority-owned energy engineering firm based in Portland, Oregon.” Source: RevenueBase Database · checked Sep 16, 2026
9	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
10	Optimum EPC Contracting	Indirect evidence	Portland, ME, United StatesHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “EPC contracting isn’t just a job for us.” Source: RevenueBase Database · checked Sep 16, 2026
11	The Gray PEN Group, LLC	Indirect evidence	Portland, ME, United StatesHQ checked Sep 16, 2026	11-50	9 contacts →
	Indirect evidence “Offering EPC Contracting (Engineer, Procure, Construct) in the industry of Electric Power Generation.” Source: RevenueBase Database · checked Sep 16, 2026
12	Renewable Acres	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	9 contacts →
	Indirect evidence “As lovers of the great outdoors, we want to play our part in creating a cleaner, safer world for future generations.” Source: RevenueBase Database · checked Sep 16, 2026
13	System Design Consultants, INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	11-50	9 contacts →
	Partial 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
14	Creative Renewable Solutions, LLC	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	6 contacts →
	Strong 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
15	Anchor Blue Consulting, LLC	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	4 contacts →
	Strong 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
16	Hodaie Engineering INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	4 contacts →
	Partial evidence “Hodaie Engineering was established in with a simple, yet effective strategy: to let our work speak for itself.” Source: RevenueBase Database · checked Sep 16, 2026
17	Coefficient Consulting LTD	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	2 contacts →
	Strong evidence “We help organizations articulate their vision for success while providing coaching, engineering, and organizational resources to support their energy management journey.” Source: RevenueBase Database · checked Sep 16, 2026
18	Altman Browning & Company	Partial evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “At Altman Browning & Company, we are a dedicated engineering team committed to delivering exceptional solutions across a diverse range of industries.” Source: RevenueBase Database · checked Sep 16, 2026
19	Ferment Service	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	2 contacts →
	Strong evidence “Ferment Service provides fractional and T&M engineering consulting to CPG manufacturers, food and beverage producers, and industrial clients.” Source: RevenueBase Database · checked Sep 16, 2026
20	Grid-Scale Advisors	Partial evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial evidence “Grid-Scale Advisors offers specialized advisory services to developers and investors looking to make smart technology and partnership decisions in the rapidly evolving energy…” Source: RevenueBase Database · checked Sep 16, 2026
21	Carbon Solutions Northwest LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
22	EP Group LLC	Partial evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial 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 16, 2026
23	Collinscea	Strong evidence	Portland, ME, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Strong evidence “CollinsCEA provides expert consulting, engineering, and advising services to utilities, government, and commercial and industrial customers.” Source: RevenueBase Database · checked Sep 16, 2026
24	A Inman Consulting, LLC	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Strong 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
25	Rockcress Consulting	Strong evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Strong evidence “Rockcress Consulting offers tailored clean energy consulting services to clients spanning diverse sizes and industries.” 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: energy engineering consulting 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 energy engineering consulting companies.
Partial evidence: Its own public description names part of energy engineering consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy engineering consulting 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 25 of 37 energy engineering consulting companies based in Portland, United States

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Energy engineering consulting companies based in Portland, United States at a glance

As of Sep 16, 2026

45.9%Verified-email coverage

46.3Average contacts per company

1-10Median size (employees)

613.5%Largest-city concentration · Houston

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 37 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 energy engineering consulting 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 “energy engineering consulting 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 energy engineering consulting 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 energy engineering consulting 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, 786 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.

Energy engineering consulting 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 energy engineering consulting 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 energy engineering consulting companies are there based in Portland, United States?

RevenueBase identified 37 energy engineering consulting 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 energy engineering consulting companies?

Houston leads with 227 headquartered companies, followed by New York (125) and Austin (69).

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 786 verified decision-maker contacts tracked across these 37 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.