Company lists · Data refreshed September 2026
Top 25 IT outsourcing companies based in Singapore
RevenueBase identified 155 IT outsourcing companies headquartered in Singapore as of September 2026 and tracks 3,762 professional contacts across them, including 560 with verified work emails. Singapore is the largest hub.
This list covers IT outsourcing companies headquartered in Singapore, 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 14, 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 25 largest IT outsourcing companies based in Singapore
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 398 contacts → | ||||
Indirect evidence “Our Story Established in 2006 in Singapore – and now a part of the $3 bn TechnoPro Group, Japan – Helius was established to support enterprise organisations operating in complex…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 225 contacts → | ||||
Partial evidence “OPUS IT Services Pte Ltd is a leading IT services and solutions company in Singapore.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 172 contacts → | ||||
Indirect evidence “Aryan Solutions is headquartered in Singapore with offices in KL (Malaysia), Lucknow (India), and Dubai (UAE).” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 121 contacts → | ||||
Partial evidence “Established in 1988, RMA Group is a leading global outsourcing specialist headquartered in Singapore with more than 1,200 employees across five countries throughout Asia-Pacific.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 116 contacts → | ||||
Partial evidence “Established in 2018, Alphaeus has just one goal in mind – to be a one-stop IT solution provider for all Information Technology (IT) support services in Singapore.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 96 contacts → | ||||
Partial evidence “In a rapidly changing business environment driven by new technologies, business leaders can no longer afford to ignore outsourcing.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 94 contacts → | ||||
Indirect evidence “Kuubiik is a global, client-focused consultancy with operations spanning more than 150 countries.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 88 contacts → | ||||
Strong evidence “A-IT Software Services is a Singapore headquartered leading Software and IT Services Outsourcing and Consulting company specialized in providing cutting edge technology solutions…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 82 contacts → | ||||
Indirect evidence “i2s was founded in 2004.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 78 contacts → | ||||
Partial evidence “Neurones IT is an IT infrastructure service provider specialized in Consulting, Transformation and Operations.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 78 contacts → | ||||
Partial evidence “Coding Collective provides a dedicated team of trusted IT professionals who can fit seamlessly into your working team or environment, be it on a project basis or an extension of…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 58 contacts → | ||||
Indirect evidence “Established in 1992, Amnet Technology Pte Ltd has been a trusted partner in delivering cutting-edge technology and business solutions that drive success.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 52 contacts → | ||||
Indirect evidence “Green BPO - 100% Remote Role - lowest attrition and cost - expertise in Finance Order 2 Cash roles, Customer Service, Analyst and Tech Roles across India & Asia - bilingual…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 41 contacts → | ||||
Partial evidence “Trinity Consulting is an independent IT Services, Consulting and Business Consulting services firm.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 41 contacts → | ||||
Indirect evidence “Afi Global is a fast-growing organization that provides technology solutions and staff augmentation services to companies across the world.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 37 contacts → | ||||
Strong evidence “ABOUT THATZ Since its humble beginning in 1998, Thatz's group has grown to become a leading IT Consulting, Outsourcing, Professional, and Managed Services Provider committed to…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 32 contacts → | ||||
Partial evidence “Ariston Services is a Singapore headquartered company having offices across ASEAN and India focused in providing a wide range of IT Services mostly to clients from Banking and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 29 contacts → | ||||
Partial evidence “ServBridge Incorporated is a global IT services leader, operating across 100+ countries.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 29 contacts → | ||||
Partial evidence “We are one of the IT services companies in Singapore who provides end to end consultation for your IT needs.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 29 contacts → | ||||
Indirect evidence “Nexus Innovate is a multi-skilled software service provider with a highly competent workforce.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 29 contacts → | ||||
Partial evidence “EVO | Now PERSOL Outsourcing We’ve moved.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 26 contacts → | ||||
Indirect evidence “Let us build the infrastructure for your success!” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 26 contacts → | ||||
Partial evidence “Since 2005, Nanosoft Business Systems offer full-spectrum of Talent Sourcing services,IT Manager services,IT Recruitment Services and other Adhoc IT Customised Services with very…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 25 contacts → | ||||
Indirect evidence “Irtish Consulting is a dynamic and end-to-end Information Technology & Resourcing Company incorporated in Singapore and having presence in Singapore, Malaysia, USA and India.The…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 24 contacts → | ||||
Strong evidence “Skyf.IT, a Singapore based company, provides ICT Professional Services and Outsourcing Services to our value clientele base comprising of multinational as well as local…” Source: RevenueBase Database · checked Sep 14, 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: IT outsourcing companies. 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 IT outsourcing companies.
- Partial evidence
- Its own public description names part of IT outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT outsourcing companies. 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 25 of 155 IT outsourcing companies based in Singapore
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IT outsourcing companies based in Singapore at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Singapore, so it is reported there. Company counts and contact totals on this page are exact for Singapore, over 155 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 IT outsourcing 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 Singapore whose own description of what they do matches “IT outsourcing 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 IT outsourcing 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 IT outsourcing companies, and records with no verified work email. Companies headquartered outside Singapore 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, 560 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 14, 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.
IT outsourcing companies by metro
- IT outsourcing companies in Singapore144
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 IT outsourcing 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 IT outsourcing companies are there based in Singapore?
RevenueBase identified 155 IT outsourcing companies headquartered in Singapore 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?
Helius Technologies, headquartered in Singapore, tops this list with the largest team on record.
Which city has the most IT outsourcing companies?
Singapore leads with 144 headquartered companies, followed by Downtown Core (1) and Yishun (1).
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 560 verified decision-maker contacts tracked across these 155 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 14, 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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