Company lists · Data refreshed September 2026
Top 25 Offshore drilling law firms based in the United States
RevenueBase identified 171 offshore drilling law firms headquartered in the United States as of September 2026 and tracks 2,155 professional contacts across them, including 1,201 with verified work emails and 1,125 with mobile numbers. Houston is the largest hub.
This list covers offshore drilling law firms headquartered in the 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 offshore drilling law firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 271 | ||||
“Schouest, Bamdas, Soshea & BenMaier PLLC is a law firm focused on your needs.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 259 | ||||
“Liskow was founded in 1935 and includes nearly 150 lawyers across our five offices, strategically located in New Orleans, Lafayette, and Baton Rouge, Louisiana, Houston, Texas…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 192 | ||||
“Hamilton, Miller & Birthisel, LLP is an AV rated, minority certified law firm based in Florida with offices throughout the state and in Kingston, Jamaica and the U.S.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | Oliva GibbsPartial evidence | 92 | |||
“Oliva Gibbs is a nationally recognized law firm with offices in Columbus, OH, Houston, TX, Lafayette, LA, Midland, TX, Oklahoma City, OK, and San Antonio, TX.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | Thomas Quinn, LLPIndirect evidence | 89 | |||
“Thomas Quinn, LLP is founded on the principles of honesty and accountability.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 52 | ||||
“The Downs Law Group is a boutique law firm based in Florida and serves clients in and around Miami-Dade County, Broward County, Duval County and the Florida panhandle.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | Gallagher Marine Systems - LLCIndirect evidence | 49 | |||
“Gallagher Marine Systems (GMS) is the industry’s most comprehensive source of full-service, in-depth, compliance support.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 39 | ||||
“King & Jurgens, with offices in New Orleans and Houston, is a general corporate and litigation firm.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | J Connor Consulting, INCIndirect evidence | 39 | |||
“The Company J.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | Neblett, Beard & ArsenaultIndirect evidence | 37 | |||
“Neblett, Beard & Arsenault has represented injury victims and their families for almost three decades.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 33 | ||||
“For more than 30 years, Dorwart has helped businesses solve complex legal challenges typically entrusted to much larger law firms.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | Offshore Technical Compliance LLCPartial evidence | 30 | |||
“Offshore Technical Compliance is rapidly positioning itself as the global offshore industry’s leader in supplying compliance-related services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 29 | ||||
“Riess LeMieux is a premier law firm in New Orleans that offers the expertise and personal approach of a niche law firm while providing a range of expertise across various practice…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | The Townsley LAW FirmStrong evidence | 27 | |||
“The Townsley Law Firm is a firm dedicated to one purpose: justice for our clients who are victims of maritime injuries, offshore accidents, industrial injuries, auto accidents…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 26 | ||||
“Admiralty; Maritime; Insurance; Litigation; Arbitration and all types of commercial disputes” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 22 | ||||
“Greetings Friends & Colleagues Collier Walsh Nakazawa LLP, a U.S.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 19 | ||||
“Trends in the legal market are changing the way law firms and clients approach the business and practice of law.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Lennon Murphy & Phillips, LLCPartial evidence | 18 | |||
“New York and Connecticut based law firm specializing in both litigation and transactional work.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | Mahaffey & Gore P.CIndirect evidence | 17 | |||
“Mahaffey & Gore, P.C.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Gibson Robb & Lindh LLPIndirect evidence | 17 | |||
“Our attorneys have substantial litigation and appellate experience.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | Pusateri Johnston Guillot & Greenbaum LLCIndirect evidence | 16 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | Rainey And Wortmann PllcPartial evidence | 14 | |||
“Rainey & Wortmann, PLLC is a preeminent oil and gas law firm representing clients across numerous states and in every oil and gas basin, based out of Fort Worth, TX.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Nicoletti Hornig & SweeneyPartial evidence | 13 | |||
“NICOLETTI HORNIG & SWEENEY is internationally recognized as one of the leading law firms in the United States in marine insurance, shipping and transportation litigation, and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 13 | ||||
“Amini Law Firm PLLC is a Houston-based law firm with a primary focus on oil and gas law.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | Sneed & Mitchell LLPPartial evidence | 13 | |||
“If you’ve been seriously impacted due to the actions of another person or company, the attorneys from Sneed|Mitchell Law are here to help restore your life.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 171 offshore drilling law firms based in the United States
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Offshore drilling law firms based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 offshore drilling law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “offshore drilling law firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among offshore drilling law firms, and records with no verified work email. Companies headquartered outside United States 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 an evidence 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, 1,201 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 5, 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.
Offshore drilling law firms by metro
- Offshore drilling law firms in Houston27
- Offshore drilling law firms in New Orleans26
Frequently asked
How many offshore drilling law firms are there based in the United States?
RevenueBase identified 171 offshore drilling law firms headquartered in the 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?
Schouest, Bamdas, Soshea & Benmaier Pllc, headquartered in Houston, tops this list with the largest team on record.
Which city has the most offshore drilling law firms?
Houston leads with 27 headquartered companies, followed by New Orleans (26) and Miami (10).
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 1,201 verified decision-maker contacts tracked across these 171 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 5, 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 SmartSearch, 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.
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