Company lists · Data refreshed September 2026
Top 22 Offshore outsourced services based in Vietnam
RevenueBase identified 81 offshore outsourced services headquartered in Vietnam as of September 2026 and tracks 2,666 professional contacts across them, including 223 with verified work emails. Hanoi is the largest hub.
This list covers offshore outsourced services 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 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 22 largest offshore outsourced services based in Vietnam
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 421 contacts → | ||||
Partial evidence “transcosmos Vietnam Co, Ltd, 100% Japanese-invested company, focuses on a variety of services on Call Center, BPO (Business Process Outsourcing), Business Intelligence, Digital…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 259 contacts → | ||||
Indirect evidence “Established in 2005, ExperTrans Global is a leading company in term of globalization solution service.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 184 contacts → | ||||
Partial evidence “LTS Group is a dedicated IT outsourcing services provider headquartered in Vietnam with subsidiaries in Japan & the United States.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 178 contacts → | ||||
Indirect evidence “Titan Technology Corporation (Titan) is an incorporated company founded in 2013.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 130 contacts → | ||||
Strong evidence “PUNGKOOK SAIGON II is an Outsourcing/Offshoring company located in 2A Road 8, Song Than Industrial Park, Binh Duong, Binh Dinh Province, Viet Nam.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 68 contacts → | ||||
Indirect evidence “3S wants to contribute its unique value to the Software Out-sourcing/Off-shoring Service Industry in Vietnam and creating more choices for customers to quickly find a reliable…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 67 contacts → | ||||
Partial evidence “LOGIX TECHNOLOGY is software service company specialized in providing professional software development services through partnership based on the offshore development center…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 53 contacts → | ||||
Indirect evidence “Accelerating Software Delivery with Senior Engineering Talent and AI-Powered Execution.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 48 contacts → | ||||
Indirect evidence “Gleads được hình thành với sứ mệnh hỗ trợ các công ty, doanh nghiệp nâng tầm thương hiệu quốc tế và tiếp cận đến người tiêu dùng trên khắp thế giới.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 45 contacts → | ||||
Strong evidence “SCS is a Vietnam based one-stop software development powerhouse providing outsourcing, offshoring and managed services to help client foster their digital transformation journey.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 45 contacts → | ||||
Strong evidence “Since 2012, Remote Resources delivers offshore staffing and outsourcing solutions to boost your growth, flexibility and profitability.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 24 contacts → | ||||
Indirect evidence “We are EFE – group of young and passion people.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 15 contacts → | ||||
Partial evidence “Pure Moderation - a brand of Gear Pure Moderation is a global business process outsourcing vendor specializing in a range of services based in Vietnam, Laos, Indonesia, Thailand…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 14 contacts → | ||||
Partial evidence “Niem Tin Viet Telecom Company (NTV) earns a high reputation in providing outsourcing services including solutions and customer care service in Vietnam market.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 9 contacts → | ||||
Partial evidence “Customized End-to-End Offshore Development Services to Meet Your Needs PROTEAN STUDIOS is a software development company based in Hanoi, Vietnam, specializing in system and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Partial evidence “iPlus Solution is a leading IT outsourcing company specializing in software development services, industry-specific solutions, and human resource services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence “Providing fast delivering, off-shore teams for your business success” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Indirect evidence “VDTSOL has been offering reliable and affordable ODC to customer worldwide since 2019 with power of the top Vietnam senior software developers in the heart of Hanoi, Vietnam.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Indirect evidence “At Sosene Software, we know that we need a good understanding of your business organization to offer you high-quality, efficient IT solutions that evolve with your business needs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Partial evidence “ITO Technology Solution is a software outsourcing services company that offers high quality and ideal development solutions for global clients in various industries.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “BPO - Business Process Outsourcing” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence “LETMECARE provides a broad portfolio of information technology solutions and business process to its clients worldwide.” 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: offshore outsourced 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 outsourced services.
- Partial evidence
- Its own public description names part of offshore outsourced services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name offshore outsourced 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 81 offshore outsourced services based in Vietnam
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Offshore outsourced services based in Vietnam at a glance
As of Sep 21, 2026Companies by employee count
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 81 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 outsourced 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 Vietnam whose own description of what they do matches “offshore outsourced 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 outsourced 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 outsourced services, 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, 223 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.
Offshore outsourced services by metro
- Offshore outsourced services in Hanoi25
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 outsourced 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 outsourced services are there based in Vietnam?
RevenueBase identified 81 offshore outsourced services 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?
Transcosmos Vietnam Co., LTD, headquartered in Noi Ho Chi Minh, tops this list with the largest team on record.
Which city has the most offshore outsourced services?
Hanoi leads with 25 headquartered companies, followed by Ho Chi Minh (17) and Ho Chi Minh City (13).
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 223 verified decision-maker contacts tracked across these 81 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.
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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.
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