Company lists · Data refreshed September 2026

Top 22 Business support outsourcing companies based in Singapore

Name: Business support outsourcing companies based in Singapore
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 72 companies tracked

RevenueBase identified 72 business support outsourcing companies headquartered in Singapore as of September 2026 and tracks 3,177 professional contacts across them, including 311 with verified work emails. Singapore is the largest hub.

This list covers business support 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 27, 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 27, 2026 86% judged on-target in blind review

72Companies

3,177Contacts tracked

311Verified emails

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The 22 largest business support outsourcing companies based in Singapore

Ranked by team size

Top 22 of 72 business support outsourcing companies based in Singapore, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to business support outsourcing 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Gear INC	Partial evidence	SingaporeHQ checked Sep 27, 2026	5,001-10,000	1,974 contacts →
	Partial evidence “Empowering Global Brands Through Custom BPO Solutions Gear Inc delivers business process outsourcing solutions designed to meet the unique challenges of leading enterprises.” Source: RevenueBase Database · checked Sep 27, 2026
2	RMA Group	Partial evidence	SingaporeHQ checked Sep 27, 2026	1,001-5,000	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 27, 2026
3	Accountstaff	Partial evidence	SingaporeHQ checked Sep 27, 2026	501-1,000	76 contacts →
	Partial evidence “AccountStaff - a division of RSM Singapore is a leading Business Process Outsourcing (BPO) partner with a presence in Singapore, China and Malaysia.” Source: RevenueBase Database · checked Sep 27, 2026
4	Octopus8	Strong evidence	SingaporeHQ checked Sep 27, 2026	11-50	59 contacts →
	Strong evidence “Octopus8, a new tech leader in AI-powered business process outsourcing, provides intelligent automation solutions and services in customer service, technical support, digital…” Source: RevenueBase Database · checked Sep 27, 2026
5	Incall Systems PTE LTD	Indirect evidence	SingaporeHQ checked Sep 27, 2026	51-200	58 contacts →
	Indirect evidence “inCall Systems is an Outsourced Business Service Provider (BPO) of over 20 years, offering End-to-End Integrated Marketing and Customer Services solutions that delivers results.” Source: RevenueBase Database · checked Sep 27, 2026
6	Grow Asia	Indirect evidence	SingaporeHQ checked Sep 27, 2026	51-200	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 27, 2026
7	Fastcorp PTE LTD	Indirect evidence	SingaporeHQ checked Sep 27, 2026	11-50	36 contacts →
	Indirect evidence “Our team consists of experienced professionals with years of legal, accounting and tax training.” Source: RevenueBase Database · checked Sep 27, 2026
8	EVO Outsourcing Solutions	Partial evidence	SingaporeHQ checked Sep 27, 2026	1-10	29 contacts →
	Partial evidence “EVO \| Now PERSOL Outsourcing We’ve moved.” Source: RevenueBase Database · checked Sep 27, 2026
9	Cboxdev	Partial evidence	SingaporeHQ checked Sep 27, 2026	51-200	26 contacts →
	Partial evidence “We are among the largest providers of outsourced B2B marketing and sales support services for organizations worldwide, and are trusted by businesses across continents, North…” Source: RevenueBase Database · checked Sep 27, 2026
10	Melioris Private Limited	Indirect evidence	SingaporeHQ checked Sep 27, 2026	11-50	21 contacts →
	Indirect evidence “Established in 2002 and headquartered in Singapore, Melioris is the leading Business Process Services Provider in Asia and has been helping our customers in Asia to manage and…” Source: RevenueBase Database · checked Sep 27, 2026
11	Modular Infotech Singapore PTE LTD	Partial evidence	SingaporeHQ checked Sep 27, 2026	11-50	20 contacts →
	Partial evidence “We offer business process outsourcing solutions to our global clients by leveraging process, domain and people management expertise.” Source: RevenueBase Database · checked Sep 27, 2026
12	Voyager Partners Advisors	Indirect evidence	SingaporeHQ checked Sep 27, 2026	51-200	15 contacts →
	Indirect evidence “At Voyager Partners Advisors, we are dedicated to delivering comprehensive solutions for your business needs.” Source: RevenueBase Database · checked Sep 27, 2026
13	Flexxo PTE LTD	Strong evidence	SingaporeHQ checked Sep 27, 2026	11-50	13 contacts →
	Strong evidence “FLEXXO - OUTSOURCING THAT EMPOWERS BUSINESS Accounting, taxation, audit, corporate secretary, human resources and payroll - we're here to support your business needs.” Source: RevenueBase Database · checked Sep 27, 2026
14	Jingke Technology PTE LTD	Partial evidence	Woodlands, SingaporeHQ checked Sep 27, 2026	11-50	13 contacts →
	Partial evidence “Our Vision Our vision is to be the premier provider of business process outsourcing in semiconductor industry through forging long term partnership with both customer and…” Source: RevenueBase Database · checked Sep 27, 2026
15	Algebra Corporate Services	Indirect evidence	SingaporeHQ checked Sep 27, 2026	11-50	12 contacts →
	Indirect evidence “Algebra provides its customers tailor-made assistance in everyday and extraordinary administration.” Source: RevenueBase Database · checked Sep 27, 2026
16	Contactone Professional Services	Indirect evidence	Downtown Core, SingaporeHQ checked Sep 27, 2026	11-50	12 contacts →
	Indirect evidence “ContactOne Professional Services provides both local and foreign entrepreneurs with a comprehensive suite of corporate and professional services to assist you in your preparation…” Source: RevenueBase Database · checked Sep 27, 2026
17	XAP 24 7	Indirect evidence	SingaporeHQ checked Sep 27, 2026	11-50	8 contacts →
	Indirect evidence “Whether you are a startup, micro or SME, we unleash a mix of technology and strategy to drive growth and make business easier.” Source: RevenueBase Database · checked Sep 27, 2026
18	BZE Accounting	Indirect evidence	SingaporeHQ checked Sep 27, 2026	1-10	7 contacts →
	Indirect evidence “Specialising in Accounting, Book-Keeping, Secretarial Services, Tax, Company Incorporation Services and more.” Source: RevenueBase Database · checked Sep 27, 2026
19	Accitius Services PTE LTD	Indirect evidence	SingaporeHQ checked Sep 27, 2026	11-50	6 contacts →
	Indirect evidence “Accitius Services Pte Ltd (Accitius) is a business and corporate services firm, a partner for you and business, by providing outsourced business solutions with value and care.” Source: RevenueBase Database · checked Sep 27, 2026
20	Everyday Corporate Pte. LTD	Indirect evidence	Central Business District, SingaporeHQ checked Sep 27, 2026	1-10	2 contacts →
	Indirect evidence “At Everyday Corporate, we're passionate about ensuring that your business needs are met, so that you can spend time on the things that matter.” Source: RevenueBase Database · checked Sep 27, 2026
21	Finact Business Solutions LLP Finact Business Consultancy Group PTE LTD	Indirect evidence	SingaporeHQ checked Sep 27, 2026	1-10	2 contacts →
	Indirect evidence “Mission Statement: To help client grow their business through our value creation of our services.” Source: RevenueBase Database · checked Sep 27, 2026
22	Promiso Corporate Services PTE LTD	Indirect evidence	SingaporeHQ checked Sep 27, 2026	1-10	1 contacts →
	Indirect evidence “We specialize in providing corporate services for start-up, small and medium sized companies or businesses.” Source: RevenueBase Database · checked Sep 27, 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: business support 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 business support outsourcing companies.
Partial evidence: Its own public description names part of business support outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business support 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 22 of 72 business support outsourcing companies based in Singapore

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Business support outsourcing companies based in Singapore at a glance

As of Sep 27, 2026

9.8%Verified-email coverage

44.1Average contacts per company

11-50Median size (employees)

90.3%Largest-city concentration · Singapore

Sep 27, 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

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 72 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 business support 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 “business support 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 business support 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 business support 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, 311 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 27, 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 business support 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 business support outsourcing companies are there based in Singapore?

RevenueBase identified 72 business support 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?

Gear INC, headquartered in Singapore, tops this list with the largest team on record.

Which city has the most business support outsourcing companies?

Singapore leads with 65 headquartered companies, followed by Downtown Core (2) and Jurong East (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 311 verified decision-maker contacts tracked across these 72 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 27, 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.