Company lists · Data refreshed September 2026

Top 24 Energy and infrastructure law firms based in Portland, United States

RevenueBase identified 29 energy and infrastructure law firms headquartered in Portland, United States as of September 2026 and tracks 2,489 professional contacts across them, including 1,470 with verified work emails. Across the United States, Houston is the largest hub for this category (193 companies); Portland has 29.

This list covers energy and infrastructure law 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 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
29Companies
2,489Contacts tracked
1,470Verified emails
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The 24 largest energy and infrastructure law firms based in Portland, United States

Ranked by team size
Top 24 of 29 energy and infrastructure law firms 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 energy and infrastructure law 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidencePortland, OR, United StatesHQ checked Sep 28, 2026501-1,000864 contacts →

Indirect evidence

“Stoel Rives is a leading U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidencePortland, OR, United StatesHQ checked Sep 28, 2026201-500398 contacts →

Indirect evidence

“We focus our practices by industry, so you can access legal services based on your unique needs in today’s economy.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidencePortland, ME, United StatesHQ checked Sep 28, 2026201-500320 contacts →

Partial evidence

“Pierce Atwood LLP, a highly-regarded, full-service law firm based in New England, has 150 attorneys who serve regional, national, and international clients from offices in…”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidencePortland, ME, United StatesHQ checked Sep 28, 2026201-500245 contacts →

Partial evidence

“We are a New England-based law firm that advises clients across the U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidencePortland, OR, United StatesHQ checked Sep 28, 202651-200197 contacts →

Partial evidence

“A leading Pacific Northwest law firm, Tonkon Torp provides legal counsel, business advice and litigation services to regional, national and international clients.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidencePortland, ME, United StatesHQ checked Sep 28, 202651-200186 contacts →

Partial evidence

“Drummond Woodsum is a full-service law firm with more than 100 attorneys and consultants in offices in Portland, Maine, Manchester, and Lebanon, New Hampshire, and Flagstaff…”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidencePortland, OR, United StatesHQ checked Sep 28, 202611-5050 contacts →

Partial evidence

“With roots dating back to 1927, Samuels Yoelin Kantor LLP ranks as one of Oregon’s oldest law firms.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidencePortland, OR, United StatesHQ checked Sep 28, 202611-5035 contacts →

Partial evidence

“At Chenoweth Law Group, P.C, we provide effective advocacy in complex commercial and civil litigation.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidencePortland, ME, United StatesHQ checked Sep 28, 202611-5030 contacts →

Partial evidence

“Perkins Thompson is a client-centric, Maine-based law firm that works with businesses, institutions, and individuals to realize their goals.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidencePortland, United StatesHQ checked Sep 28, 202611-5028 contacts →

Indirect evidence

“Over 30 years ago, the earliest iteration of Cable Huston (pronounced, “Cable Houston”) was formed with the express purpose of providing clients superior legal guidance without…”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidencePortland, OR, United StatesHQ checked Sep 28, 202611-5019 contacts →

Partial evidence

“Sokol Larkin, a boutique law firm located in Portland, Oregon, has earned its reputation as one of the Pacific Northwest’s premier firms in the areas of construction and design…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidencePortland, OR, United StatesHQ checked Sep 28, 202611-5018 contacts →

Partial evidence

“Brownstein Rask LLP has been a prominent midsize Portland law firm since its founding over 50 years ago.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidencePortland, OR, United StatesHQ checked Sep 28, 202611-5016 contacts →

Strong evidence

“Energy, Environmental, and Telecommunications Law, these fields are undergoing constant change and rapid growth.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidencePortland, OR, United StatesHQ checked Sep 28, 202611-5011 contacts →

Indirect evidence

“Radler White Parks & Alexander LLP was created to offer clients industry leading legal services in land use, real estate and related corporate matters.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidencePortland, OR, United StatesHQ checked Sep 28, 202611-5011 contacts →

Partial evidence

“Environmental and Municipal Law From our offices in Pennsylvania, California, and Oregon, we practice as one law firm, holding closely to core values that start with a deep…”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidencePortland, OR, United StatesHQ checked Sep 28, 20261-106 contacts →

Partial evidence

“Oregon Law Group is one of the Pacific Northwest’s premier real estate and corporate transactional law firms.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidencePortland, OR, United StatesHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Barg Singer Hoesly delivers experienced counsel and strategic guidance to help our clients efficiently navigate real estate transactions and disputes, business issues, and civil…”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidencePortland, OR, United StatesHQ checked Sep 28, 20261-103 contacts →

Strong evidence

“We believe in using the law to create a more sustainable future by helping our clients structure, negotiate, document, and execute complex transactions in the renewable energy…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidencePortland, OR, United StatesHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Experienced Development Consultant, prioritizing integrity, candor, and courtesy, dovetailing a solid contemporary legal education with 15 years of boots-on-the-ground fieldwork.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidencePortland, OR, United StatesHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Spark is a boutique law firm that helps businesses thrive by providing commercial transaction and corporate legal services.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidencePortland, OR, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Areas of practice:* business & corporate * real estate & land use * litigation * regulated industries * bankruptcy & insolvency * employment & intellectual property”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidencePortland, ME, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Providing professional contract drafting services for a wide variety of engineering fields.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidencePortland, OR, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“At AltusLaw LLC, our attorneys have practical, real world experience and a commitment to unparalleled legal excellence.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidencePortland, OR, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Seasoned Financial Services and Restructuring Lawyer With over 15 years of experience guiding clients through complex financial disputes, restructurings, and bankruptcy…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 24 of 29 energy and infrastructure law firms based in Portland, United States

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Energy and infrastructure law firms based in Portland, United States at a glance

As of Sep 28, 2026
59.1%Verified-email coverage
85.8Average contacts per company
11-50Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
10
51-200
2
201-500
3
501-1,000
1

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 29 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 and infrastructure law 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 “energy and infrastructure law 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 energy and infrastructure law 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 energy and infrastructure law 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, 1,470 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.

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 and infrastructure law 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 energy and infrastructure law firms are there based in Portland, United States?

RevenueBase identified 29 energy and infrastructure law 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?

Stoel Rives LLP, headquartered in Portland, tops this list with the largest team on record.

Which city in the United States has the most energy and infrastructure law firms?

Houston leads the United States with 193 headquartered companies, followed by New York (193) and Washington (125). Portland has 29.

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 1,470 verified decision-maker contacts tracked across these 29 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.