Company lists · Data refreshed September 2026

Top 22 Offshore well services based in Mexico

Name: Offshore well services based in Mexico
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 87 companies tracked

RevenueBase identified 87 offshore well services headquartered in Mexico as of September 2026 and tracks 8,117 professional contacts across them, including 379 with verified work emails. Ciudad Del Carmen is the largest hub.

This list covers offshore well services headquartered in Mexico, 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 20, 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 20, 2026 86% judged on-target in blind review

87Companies

8,117Contacts tracked

379Verified emails

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The 22 largest offshore well services based in Mexico

Ranked by team size

Top 22 of 87 offshore well services based in Mexico, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to offshore well services: 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	Cotemar	Indirect evidence	Ciudad Del Carmen, MexicoHQ checked Sep 20, 2026	5,001-10,000	4,138 contacts →
	Indirect evidence “We are Mexican company specialized in services for the oil industry since 1979.” Source: RevenueBase Database · checked Sep 20, 2026
2	Grupo R	Indirect evidence	Mexico City, MexicoHQ checked Sep 20, 2026	501-1,000	586 contacts →
	Indirect evidence “Grupo R is a conglomerate of companies dedicated to provide specialized services to the Energy and Industrial Sector.” Source: RevenueBase Database · checked Sep 20, 2026
3	Marinsa	Partial evidence	Campeche, MexicoHQ checked Sep 20, 2026	501-1,000	420 contacts →
	Partial evidence “Somos una empresa integradora de servicios offshore para la industria energética, mediante embarcaciones especializadas, ofreciendo soluciones con la máxima relación costo-tiempo…” Source: RevenueBase Database · checked Sep 20, 2026
4	OPEX	Indirect evidence	Miguel Hidalgo, MexicoHQ checked Sep 20, 2026	1,001-5,000	244 contacts →
	Indirect evidence “MARCAMOS LA DIFERENCIA Estamos orientados a la perforación marina costa afuera y terrestre para la industria energética y petrolera en México.” Source: RevenueBase Database · checked Sep 20, 2026
5	HF Offshore	Partial evidence	Ciudad Del Carmen, MexicoHQ checked Sep 20, 2026	51-200	171 contacts →
	Partial evidence “HF OFFSHORE offers a wide range of maritime services in the field of marine, transportation, installation, decommissioning, salvage and deep-sea technologies with location in…” Source: RevenueBase Database · checked Sep 20, 2026
6	Modec México	Partial evidence	Ciudad De México, MexicoHQ checked Sep 20, 2026	5,001-10,000	108 contacts →
	Partial evidence “MODEC has been a leading provider of solutions for the floating offshore oil and gas market for over 50 years.” Source: RevenueBase Database · checked Sep 20, 2026
7	Corporativo Industrial Y Comercial S.A. DE C.V	Indirect evidence	Carmen, MexicoHQ checked Sep 20, 2026	11-50	73 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
8	Servicios Petroleros Olimpia	Indirect evidence	MexicoHQ checked Sep 20, 2026	51-200	64 contacts →
	Indirect evidence “Servicios de Perforación, Terminación y Reparación de pozos Petroleros Terrestres y Geotérmicos.” Source: RevenueBase Database · checked Sep 20, 2026
9	Akali Marine	Indirect evidence	Cdmx, MexicoHQ checked Sep 20, 2026	51-200	49 contacts →
	Indirect evidence “Since our establishment in 2021, we have undergone rapid growth, which serves as a testament to our potential and the trust our clients have in us.” Source: RevenueBase Database · checked Sep 20, 2026
10	HPS Offshore Services	Indirect evidence	Ciudad Del Carmen, MexicoHQ checked Sep 20, 2026	11-50	47 contacts →
	Indirect evidence “Principalmente, participamos en actividades y disposiciones operativas para el posicionamiento, acercamiento, y/o retiro de embarcaciones con sistema de posicionamiento dinámico o…” Source: RevenueBase Database · checked Sep 20, 2026
11	Marlin Drilling Servicios Petroleros	Indirect evidence	Tihuatlan, MexicoHQ checked Sep 20, 2026	201-500	29 contacts →
	Indirect evidence “Marlin Drilling provee servicios de Perforación, Terminación, Reparación, Intervención de Pozos y Servicios Especiales para la Exploración y Producción de Petróleo y Gas.” Source: RevenueBase Database · checked Sep 20, 2026
12	ROS Reliable On & Offshore Solutions SA DE CV	Partial evidence	Ciudad Del Carmen, MexicoHQ checked Sep 20, 2026	51-200	28 contacts →
	Partial evidence “Reliable On & Offshore Solutions (ROS) es una empresa mexicana con operaciones Terrestres y Marinas para la industria energética en los sectores público y privado Lidereando…” Source: RevenueBase Database · checked Sep 20, 2026
13	E-Nav Offshore	Partial evidence	Miguel Hidalgo, MexicoHQ checked Sep 20, 2026	201-500	27 contacts →
	Partial evidence “Headquartered in Mexico City with an operational office in Houston, E-NAV Offshore was incorporated in July 2019 as a Mexican Offshore Support Vessel owner and operator to service…” Source: RevenueBase Database · checked Sep 20, 2026
14	Argos Energy Services	Partial evidence	Cd Carmen, MexicoHQ checked Sep 20, 2026	51-200	26 contacts →
	Partial evidence “ARGOS is a trusted leading company specialized in Completions and Workover Services for Oil & Gas wells.” Source: RevenueBase Database · checked Sep 20, 2026
15	MAREN	Indirect evidence	Ciudad Del Carmen, MexicoHQ checked Sep 20, 2026	501-1,000	24 contacts →
	Indirect evidence “Nos dedicamos a proveer servicios de perforación, terminación, intervenciones y reparaciones de pozos, así como proyectos integrales para el desarrollo de pozos exploratorios en…” Source: RevenueBase Database · checked Sep 20, 2026
16	Tpmexicana	Indirect evidence	Comalcalco, MexicoHQ checked Sep 20, 2026	51-200	17 contacts →
	Indirect evidence “TPMexicana brinda servicios integrales a pozos petroleros en las siguientes líneas.” Source: RevenueBase Database · checked Sep 20, 2026
17	Bylsa Drilling	Indirect evidence	Hermosillo, MexicoHQ checked Sep 20, 2026	201-500	14 contacts →
	Indirect evidence “Nuestra empresa BYLSA DRILLING proporciona servicios de perforación en una variedad de entornos, que van desde sitios de exploración típicos hasta condiciones topográficas…” Source: RevenueBase Database · checked Sep 20, 2026
18	EOS E&p	Indirect evidence	Mexico City, MexicoHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “EOS E&P is a company committed to providing services with the highest standards and competitive prices in the Oil & Gas industry.” Source: RevenueBase Database · checked Sep 20, 2026
19	Onilog Group	Partial evidence	Nuevo Laredo, MexicoHQ checked Sep 20, 2026	501-1,000	5 contacts →
	Partial evidence “With Onilog as your ally, you will be securing and empowering your offshore operations and significantly reducing your range of strategically designed services to guarantee your…” Source: RevenueBase Database · checked Sep 20, 2026
20	Nautical Mexico	Partial evidence	Ciudad Del Carmen, MexicoHQ checked Sep 20, 2026	1-10	3 contacts →
	Partial evidence “Nautical México is an independent offshore and maritime engineering firm based in Cd del Carmen, Campeche.” Source: RevenueBase Database · checked Sep 20, 2026
21	In Hole Solutions	Partial evidence	Villahermosa, MexicoHQ checked Sep 20, 2026	11-50	1 contacts →
	Partial evidence “In Hole Solutions is the firts partner for Fully Rotational Torque Machine Services and Associated Services Products, Well Completions and Flotation Equipment.” Source: RevenueBase Database · checked Sep 20, 2026
22	TMR Offshore Engineering Services SAS DE CV	Partial evidence	Polanco, MexicoHQ checked Sep 20, 2026	1-10	1 contacts →
	Partial evidence “TMR OFFSHORE ENGINEERING SERVISCES SAS de CV founded in year 2018 by oil and gas industry expert and with main office located in Mexico city, MEXICO.” Source: RevenueBase Database · checked Sep 20, 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: offshore well services. 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 offshore well services.
Partial evidence: Its own public description names part of offshore well services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore well services. 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 22 of 87 offshore well services based in Mexico

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Offshore well services based in Mexico at a glance

As of Sep 20, 2026

4.7%Verified-email coverage

93.3Average contacts per company

51-200Median size (employees)

24.1%Largest-city concentration · Ciudad Del Carmen

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for Mexico, so it is reported there. Company counts and contact totals on this page are exact for Mexico, over 87 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 offshore well services, 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 Mexico whose own description of what they do matches “offshore well services”. 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 offshore well services), 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 offshore well services, and records with no verified work email. Companies headquartered outside Mexico 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, 379 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 20, 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 offshore well services, 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 offshore well services are there based in Mexico?

RevenueBase identified 87 offshore well services headquartered in Mexico 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?

Cotemar, headquartered in Ciudad Del Carmen, tops this list with the largest team on record.

Which city has the most offshore well services?

Ciudad Del Carmen leads with 21 headquartered companies, followed by Villahermosa (13) and Carmen (8).

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 379 verified decision-maker contacts tracked across these 87 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 20, 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.