Company lists · Data refreshed September 2026

Top 15 Offshore infrastructure inspection companies based in Thailand

RevenueBase identified 32 offshore infrastructure inspection companies headquartered in Thailand as of September 2026 and tracks 1,462 professional contacts across them, including 143 with verified work emails. Bangkok is the largest hub.

This list covers offshore infrastructure inspection companies headquartered in Thailand, 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
32Companies
1,462Contacts tracked
143Verified emails
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The 15 largest offshore infrastructure inspection companies based in Thailand

Ranked by team size
Top 15 of 32 offshore infrastructure inspection companies based in Thailand, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to offshore infrastructure inspection 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceChatuchak, ThailandHQ checked Sep 20, 2026501-1,000553 contacts →

Indirect evidence

“CUEL is a marginal field contracting specialist, offering International Oil Companies a unique range of construction related services.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceSriracha, ThailandHQ checked Sep 20, 2026501-1,000318 contacts →

Indirect evidence

“Mermaid Subsea today operates as a unified structured unit across markets offering customers a comprehensive range of subsea solutions through a highly competent technical and…”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceBangkok, ThailandHQ checked Sep 20, 2026201-500131 contacts →

Partial evidence

“We are a global offshore contractor and service provider with an extensive offering of well intervention and modular rigless plug and abandonment and a team of experienced…”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceThailandHQ checked Sep 20, 202651-20081 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceBangkok, ThailandHQ checked Sep 20, 202651-20027 contacts →

Indirect evidence

“A leading platform solutions for subsea IRM to Oil and Gas An end-to-end solutions for subsea IRM platform enhanced by advanced Al and Robotics technologies providing cost…”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidencePhaya Thai, ThailandHQ checked Sep 20, 202611-5025 contacts →

Indirect evidence

“Zeaquest was established in 2020, Thailand, in collaboration with Rovula, which specializes in developing technologies for subsea exploratory robots, navigation, and gas and oil…”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceBangkok, ThailandHQ checked Sep 20, 202651-20019 contacts →

Partial evidence

“Phoenix QC is an ISO 9001:2008 certified Inspection agency providing Second & Third Party Inspection / Expediting and also procurement services worldwide.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceHuai Khwang, ThailandHQ checked Sep 20, 202611-5019 contacts →

Partial evidence

“Synterra is a dynamic company founded in 2006 providing an engineering service in offshore/ subsea oil and gas industries with innovative design tailored to customer needs.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceBangkok, ThailandHQ checked Sep 20, 202651-20017 contacts →

Indirect evidence

“Gagie Corporation is an Oil & Gas Service Company specializing in provision of Well Intervention Equipment and Services.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceBangkok, ThailandHQ checked Sep 20, 2026501-1,00015 contacts →

Indirect evidence

“Seaowl provides outsourcing services on land, sea and maritime platforms to energy companies as well as to sovereign marine players all around the world.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceSattahip, ThailandHQ checked Sep 20, 202611-5012 contacts →

Partial evidence

“Siaptek Thailand is specialized in inspection, testing and surveys in the Oil and Gas industry.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceBang Khun Thian District, ThailandHQ checked Sep 20, 202611-506 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceBangkok City, ThailandHQ checked Sep 20, 202651-2005 contacts →

Partial evidence

“In 2010 the ‘OPS-Oilfield Equipment & Services Ltd.’ services company was established and set-up, initially as an Inspection Services provider, covering the full range of…”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceBangkok, ThailandHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“A joint venture company of Rovula (Thailand) and Kongsberg Ferrotech.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidencePhuket, ThailandHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“Need a Marine Surveyor?”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 15 of 32 offshore infrastructure inspection companies based in Thailand

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Offshore infrastructure inspection companies based in Thailand at a glance

As of Sep 20, 2026
9.8%Verified-email coverage
45.7Average contacts per company
11-50Median size (employees)
34.4%Largest-city concentration · Bangkok
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
8
11-50
8
51-200
7
201-500
2
501-1,000
6
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Thailand, so it is reported there. Company counts and contact totals on this page are exact for Thailand, over 32 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 infrastructure inspection 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 Thailand whose own description of what they do matches “offshore infrastructure inspection 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 offshore infrastructure inspection 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 offshore infrastructure inspection companies, and records with no verified work email. Companies headquartered outside Thailand 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, 143 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 infrastructure inspection 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 offshore infrastructure inspection companies are there based in Thailand?

RevenueBase identified 32 offshore infrastructure inspection companies headquartered in Thailand 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?

Cuel Limited, headquartered in Bangkok, tops this list with the largest team on record.

Which city has the most offshore infrastructure inspection companies?

Bangkok leads with 11 headquartered companies, followed by Bangkok City (3) and Chonburi (2).

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 143 verified decision-maker contacts tracked across these 32 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.