Company lists · Data refreshed September 2026
Top 25 Energy sector law firms based in Chicago, United States
RevenueBase identified 46 energy sector law firms headquartered in Chicago, United States as of September 2026 and tracks 1,833 professional contacts across them, including 976 with verified work emails. Houston is the largest hub.
This list covers energy sector law firms headquartered in Chicago, 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 21, 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.
The 25 largest energy sector law firms based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,188 contacts → | ||||
Partial evidence “Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 102 contacts → | ||||
Indirect evidence “Since its founding in 1929, Masuda Funai has focused its practice on successfully representing international and domestic companies entering, operating and expanding in the United…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 65 contacts → | ||||
Indirect evidence “Eimer Stahl is a boutique commercial litigation firm headquartered in Chicago, with offices in Madison, Silicon Valley, San Francisco, and Nashville.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 36 contacts → | ||||
Strong evidence “Schain Banks is a Chicago-based law firm specializing in real estate, zoning, local government, energy, and litigation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 35 contacts → | ||||
Indirect evidence “KMA Zuckert LLP brings together two firms with extensive experience in solving problems for clients across a broad range of disciplines: Kaplan, Massamillo & Andrews, with its…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 35 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 33 contacts → | ||||
Partial evidence “Shefsky & Froelich Ltd, a Chicago-based full-service law firm, was founded in 1970 by a small group of highly motivated attorneys with extensive experience in complex commercial…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 31 contacts → | ||||
Strong evidence “Litwin Kach is a boutique law firm providing sophisticated legal services in the areas of private equity, mergers and acquisitions, energy development, venture capital, commercial…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 30 contacts → | ||||
Indirect evidence “Mohan Groble Scolaro is nationally recognized for a broad range of sophisticated legal services that we provide to both publicly traded and privately held clients in all stages of…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 28 contacts → | ||||
Partial evidence “Founded in 1993 by several attorneys previously affiliated with a large Chicago law firm, Hogan Marren, Ltd.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 26 contacts → | ||||
Indirect evidence “As of July 2022, Shepard Schwartz & Harris LLP joined Citrin Cooperman.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 22 contacts → | ||||
Partial evidence “Bridging the Gap between Public & Private Sectors In representing public and private sector clients, our attorneys provide unique legal insights and understandings that result in…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 18 contacts → | ||||
Indirect evidence “Envision Marketing was created in of one of the oldest deregulated states in the US, Illinois.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 17 contacts → | ||||
Partial evidence “McCarthy Duffy LLP is a business-focused law firm that has been supporting clients in the Midwest and around the world for over 100 years.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 17 contacts → | ||||
Strong evidence “Elcora Engineering Solutions stands tall as a trailblazer in the energy sector.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 16 contacts → | ||||
Partial evidence “Goldstein & McClintock is a restructuring, finance & corporate law firm with 11 offices across the U.S, comprised of top professionals with decades of experience at some of the…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 15 contacts → | ||||
Partial evidence “We are a boutique environmental law firm representing corporate, municipal and individual clients regarding water, waste and air issues in areas of compliance counseling…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Indirect evidence “At Miller Berger LLC, our mission is to provide exceptional legal services and strategic guidance to businesses, construction companies, and individuals in the complex landscape…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Strong evidence “Leinenweber Daffada & Sansonetti LLC is a full-service law firm that represents public and private sector clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Indirect evidence “A firm of highly-skilled, award-winning lawyers committed to providing strategic transactional advice and aggressive advocacy.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Indirect evidence “For over 22 years, Jaffe & Berlin has been representing clients big and small.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Indirect evidence “Weissberg and Associates was founded in 1984.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Indirect evidence “Sharp, inquisitive, tough, and protective – these are just some of the words our clients use to describe us.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Partial evidence “Davis McGrath LLC is a law firm with substantial experience in litigation and counseling in diverse business areas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence “FVLD is in its 40th year providing comprehensive and personalized legal services to clients ranging from local entrepreneurs to globalized entities worth billions of dollars.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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 sector law firms. 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 sector law firms.
- Partial evidence
- Its own public description names part of energy sector law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy sector law firms. 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 46 energy sector law firms based in Chicago, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 976 reachable decision-makers.
Free signup · no credit card
Energy sector law firms based in Chicago, United States at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 46 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 sector 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 Chicago, United States whose own description of what they do matches “energy sector 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 sector 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 sector law firms, and records with no verified work email. Companies headquartered outside Chicago 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, 976 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 21, 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 sector law firms by metro in the United States
- Energy sector law firms in Houston138
- Energy sector law firms in New York66
- Energy sector law firms in Washington66
- Energy sector law firms in Dallas55
- Energy sector law firms in Chicago46
- Energy sector law firms in Austin40
- Energy sector law firms in Denver37
- Energy sector law firms in Los Angeles33
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 sector 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 sector law firms are there based in Chicago, United States?
RevenueBase identified 46 energy sector law firms headquartered in Chicago, 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?
Hinshaw & Culbertson LLP, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most energy sector law firms?
Houston leads with 138 headquartered companies, followed by New York (66) and Washington (66).
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 976 verified decision-maker contacts tracked across these 46 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 46 energy sector law firms based in Chicago, United States. Start with a free account, no credit card.
Download this list →Related lists
Energy sector law firms by geography
- Energy sector law firms based in Belo Horizonte, Brazil
- Energy sector law firms based in Campinas, Brazil
- Energy sector law firms based in Curitiba, Brazil
- Energy sector law firms based in Fortaleza, Brazil
- Energy sector law firms based in Porto Alegre, Brazil
- Energy sector law firms based in Recife, Brazil
- Energy sector law firms based in Rio De Janeiro, Brazil
- Energy sector law firms based in Salvador, Brazil
- Energy sector law firms based in Sao Paulo, Brazil
- Energy sector law firms based in Calgary, Canada
- Energy sector law firms based in Toronto, Canada
- Energy sector law firms based in Vancouver, Canada
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy sector law firms based in Belo Horizonte, Brazil
- Energy sector law firms based in Campinas, Brazil
- Energy sector law firms based in Curitiba, Brazil
- Energy sector law firms based in Fortaleza, Brazil
- Energy sector law firms based in Porto Alegre, Brazil
- Energy sector law firms based in Recife, Brazil