Company lists · Data refreshed September 2026

Top 8 Offshore engineering companies based in Vietnam

RevenueBase identified 40 offshore engineering companies headquartered in Vietnam as of September 2026 and tracks 1,547 professional contacts across them, including 30 with verified work emails. Vung Tau is the largest hub.

This list covers offshore engineering companies headquartered in Vietnam, 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 17, 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 17, 2026 86% judged on-target in blind review
40Companies
1,547Contacts tracked
30Verified emails
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The 8 largest offshore engineering companies based in Vietnam

Ranked by team size
Top 8 of 40 offshore engineering companies based in Vietnam, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to offshore engineering 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 evidenceVung Tau, VietnamHQ checked Sep 17, 20265,001-10,000793 contacts →

Indirect evidence

“Exploration and development oilfield”

Source: RevenueBase Database · checked Sep 17, 2026
2Indirect evidenceHochiminh, VietnamHQ checked Sep 17, 20261,001-5,000225 contacts →

Indirect evidence

“The Pioneer of Drilling Industry in Vietnam - Belongs to PetroVietnam Corporation.”

Source: RevenueBase Database · checked Sep 17, 2026
3Partial evidenceVung Tau, VietnamHQ checked Sep 17, 2026501-1,000114 contacts →

Partial evidence

“PTSC Offshore Services Joint Stock Company (POS) is a member company of PetroVietnam Technical Services Corporation (PTSC), under Vietnam Oil and Gas Group (PetroVietnam).”

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidenceHa Noi, VietnamHQ checked Sep 17, 2026201-50075 contacts →

Partial evidence

“CTCIV's Business Lines : Refinery Petrochemical Chemical Pipe line - Storage & Terminal Infrastructure Power Plant General Industry Environment CTCIV's Services: Engineering…”

Source: RevenueBase Database · checked Sep 17, 2026
5Indirect evidenceHai Phong, VietnamHQ checked Sep 17, 202651-20046 contacts →

Indirect evidence

“PHATECO Technical Services Joint Stock Company specializes in Technical Consultancy, Quality Inspection, Supervision & Management Consultancy, Training and Mechanical, assure…”

Source: RevenueBase Database · checked Sep 17, 2026
6Indirect evidenceVung Tau, VietnamHQ checked Sep 17, 20261,001-5,00020 contacts →

Indirect evidence

“PetroVietnam Marine Shipyard (PV Shipyard) is a safe, reliable services provider for Oil & Gas Industry and Energy Sector in Vietnam and region.”

Source: RevenueBase Database · checked Sep 17, 2026
7Partial evidenceVũng Tàu, VietnamHQ checked Sep 17, 202651-20017 contacts →

Partial evidence

“SEAHORSE offers a wide range of Upstream and Downstream services including: Offshore survey services, Offshore Support Vessel Services, Operations & Maintenance Consultant…”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceHo Chi Minh, VietnamHQ checked Sep 17, 20261-102 contacts →

Partial evidence

“We are the design and engineering service arm of the Foralis Ventures Group of companies.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 8 of 40 offshore engineering companies based in Vietnam

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Offshore engineering companies based in Vietnam at a glance

As of Sep 17, 2026
1.9%Verified-email coverage
38.7Average contacts per company
51-200Median size (employees)
27.5%Largest-city concentration · Vung Tau
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
4
11-50
14
51-200
9
201-500
4
501-1,000
3
1,001-5,000
4
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for Vietnam, so it is reported there. Company counts and contact totals on this page are exact for Vietnam, over 40 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 engineering 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 Vietnam whose own description of what they do matches “offshore engineering 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 engineering 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 engineering companies, and records with no verified work email. Companies headquartered outside Vietnam 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, 30 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 17, 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 engineering 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 engineering companies are there based in Vietnam?

RevenueBase identified 40 offshore engineering companies headquartered in Vietnam 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?

Blockchain-Startups-Commnunity, headquartered in Vung Tau, tops this list with the largest team on record.

Which city has the most offshore engineering companies?

Vung Tau leads with 11 headquartered companies, followed by Ho Chi Minh (6) and Ho Chi Minh City (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 30 verified decision-maker contacts tracked across these 40 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 17, 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.