Company lists · Data refreshed September 2026

Top 25 IT systems integration firms based in Singapore

Name: IT systems integration firms based in Singapore
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 227 companies tracked

RevenueBase identified 227 IT systems integration firms headquartered in Singapore as of September 2026 and tracks 5,665 professional contacts across them, including 1,199 with verified work emails. Singapore is the largest hub.

This list covers IT systems integration firms 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 28, 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 28, 2026 86% judged on-target in blind review

227Companies

5,665Contacts tracked

1,199Verified emails

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The 25 largest IT systems integration firms based in Singapore

Ranked by team size

Top 25 of 227 IT systems integration firms based in Singapore, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT systems integration firms: 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	Convergint Asia Pacific	Indirect evidence	SingaporeHQ checked Sep 28, 2026	1,001-5,000	553 contacts →
	Indirect evidence “Convergint is a global leader in technology enabled security and safety solutions.” Source: RevenueBase Database · checked Sep 28, 2026
2	Nera Telecommunications LTD	Indirect evidence	SingaporeHQ checked Sep 28, 2026	501-1,000	412 contacts →
	Indirect evidence “Nera Telecommunications Ltd (NeraTel) is an established technology integrator with a proven track record in delivering comprehensive, turnkey solutions and services that enhance…” Source: RevenueBase Database · checked Sep 28, 2026
3	CTC Global PTE LTD	Indirect evidence	SingaporeHQ checked Sep 28, 2026	51-200	394 contacts →
	Indirect evidence “CTC Global Pte.” Source: RevenueBase Database · checked Sep 28, 2026
4	PCSS	Partial evidence	SingaporeHQ checked Sep 28, 2026	501-1,000	387 contacts →
	Partial evidence “PCSS is a Singapore-based systems integrator with more than 25 years of experience and accolades in providing secure, reliable and state-of-the-art security solutions.” Source: RevenueBase Database · checked Sep 28, 2026
5	TRG International	Indirect evidence	SingaporeHQ checked Sep 28, 2026	201-500	258 contacts →
	Indirect evidence “TRG is a market-leading global professional services firm focused on delivering technical excellence.” Source: RevenueBase Database · checked Sep 28, 2026
6	Ufinity PTE LTD	Strong evidence	SingaporeHQ checked Sep 28, 2026	201-500	240 contacts →
	Strong evidence “Ufinity provides the industry's most innovative and integrated business Information Technology (IT) systems for Asia's leading enterprises, including large multinational groups…” Source: RevenueBase Database · checked Sep 28, 2026
7	Opus IT Services PTE LTD	Partial evidence	SingaporeHQ checked Sep 28, 2026	501-1,000	225 contacts →
	Partial evidence “OPUS IT Services Pte Ltd is a leading IT services and solutions company in Singapore.” Source: RevenueBase Database · checked Sep 28, 2026
8	Primustech PTE LTD	Partial evidence	SingaporeHQ checked Sep 28, 2026	51-200	137 contacts →
	Partial evidence “PrimusTech Private Limited is a Master Systems Integrator (MSI) for buildings and facilities.” Source: RevenueBase Database · checked Sep 28, 2026
9	Merquri	Indirect evidence	SingaporeHQ checked Sep 28, 2026	51-200	127 contacts →
	Indirect evidence “Merquri helps businesses design, build, and scale enterprise platforms that improve operations, enable better decisions, and support long-term growth.” Source: RevenueBase Database · checked Sep 28, 2026
10	Aspirenxt	Strong evidence	SingaporeHQ checked Sep 28, 2026	51-200	122 contacts →
	Strong evidence “Aspire NXT,( Previously known as 3in Solutions ) has been integrating IT Infrastructure for customers since 2010.” Source: RevenueBase Database · checked Sep 28, 2026
11	VDL ETG Singapore	Strong evidence	Pioneer, SingaporeHQ checked Sep 28, 2026	501-1,000	118 contacts →
	Strong evidence “VDL Enabling Technologies Group Singapore operates in the business of system integration of mechatronic (sub)systems and modules for OEMs in the high-tech capital equipment…” Source: RevenueBase Database · checked Sep 28, 2026
12	9 Dots Consulting	Partial evidence	SingaporeHQ checked Sep 28, 2026	201-500	97 contacts →
	Partial evidence “9 Dots Consulting is a regional Microsoft-focused systems integrator and independent software vendor (SI–ISV) that helps organisations standardise, modernise, and scale their core…” Source: RevenueBase Database · checked Sep 28, 2026
13	PTC System S PTE LTD	Indirect evidence	SingaporeHQ checked Sep 28, 2026	51-200	86 contacts →
	Indirect evidence “PTC was incorporated in 1991.” Source: RevenueBase Database · checked Sep 28, 2026
14	I2s Business Solutions	Indirect evidence	SingaporeHQ checked Sep 28, 2026	51-200	82 contacts →
	Indirect evidence “i2s was founded in 2004.” Source: RevenueBase Database · checked Sep 28, 2026
15	Technopals PTE LTD	Partial evidence	SingaporeHQ checked Sep 28, 2026	201-500	79 contacts →
	Partial evidence “Technopals is one of the leading providers of IT solutions and services to various companies of high repute.” Source: RevenueBase Database · checked Sep 28, 2026
16	Onesystems Technologies PTE LTD	Strong evidence	Woodlands Bizhub, SingaporeHQ checked Sep 28, 2026	51-200	75 contacts →
	Strong evidence “OneSystems Technologies is a Singapore-based systems integrator and critical infrastructure partner delivering integrated OT and IT solutions for mission-critical environments…” Source: RevenueBase Database · checked Sep 28, 2026
17	Terra Systems	Strong evidence	SingaporeHQ checked Sep 28, 2026	51-200	70 contacts →
	Strong evidence “Since our incorporation in 2003, Terra Systems has become the performance and value leader in IT systems integration which offers customized, efficient, and cost-effective…” Source: RevenueBase Database · checked Sep 28, 2026
18	Mindmap Technologies	Partial evidence	SingaporeHQ checked Sep 28, 2026	51-200	62 contacts →
	Partial evidence “Mindmap Technologies is a Singapore-headquartered global digital transformation partner and boutique systems integrator.” Source: RevenueBase Database · checked Sep 28, 2026
19	Deep Identity	Indirect evidence	SingaporeHQ checked Sep 28, 2026	51-200	57 contacts →
	Indirect evidence “Founded in 2009, Deep Identity is a Temasek Management Services company, and a member of the Temasek ecosystem.” Source: RevenueBase Database · checked Sep 28, 2026
20	The Japan Research Institute, Limited Singapore Branch	Indirect evidence	Tampines, SingaporeHQ checked Sep 28, 2026	201-500	51 contacts →
	Indirect evidence “The Japan Research Institute, Limited (JRI) is a leading global technology company.” Source: RevenueBase Database · checked Sep 28, 2026
21	styxtech.systems	Strong evidence	SingaporeHQ checked Sep 28, 2026	51-200	43 contacts →
	Strong evidence “Styxtech.Systems is a leading global IT infrastructure reseller and systems integrator, offering a full range of innovative solutions to businesses worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
22	Deeeplabs	Indirect evidence	SingaporeHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “We take the time to get to know you and your business in order to engineer meaningful solutions that actually contribute to your growth.” Source: RevenueBase Database · checked Sep 28, 2026
23	3si PTE LTD	Partial evidence	SingaporeHQ checked Sep 28, 2026	11-50	40 contacts →
	Partial evidence “3Si is a leading Systems Integrator providing end-to-end Security solutions and technologies to organizations operating in complex and mission critical environments.” Source: RevenueBase Database · checked Sep 28, 2026
24	Excent ONE	Strong evidence	SingaporeHQ checked Sep 28, 2026	n/a	36 contacts →
	Strong evidence “Excent One is a growing Systems Integration and Application Development company.” Source: RevenueBase Database · checked Sep 28, 2026
25	Delteq PTE LTD	Partial evidence	SingaporeHQ checked Sep 28, 2026	11-50	32 contacts →
	Partial evidence “DELTEQ is one of the first local Systems Integrators established in Singapore since 1992.” Source: RevenueBase Database · checked Sep 28, 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: IT systems integration firms. 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 systems integration firms.
Partial evidence: Its own public description names part of IT systems integration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT systems integration firms. 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 227 IT systems integration firms based in Singapore

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IT systems integration firms based in Singapore at a glance

As of Sep 28, 2026

21.2%Verified-email coverage

25.0Average contacts per company

11-50Median size (employees)

89.9%Largest-city concentration · Singapore

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

101

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 227 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 systems integration firms, 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 systems integration firms”. 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 systems integration firms), 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 systems integration firms, 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, 1,199 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 28, 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 systems integration firms by metro

IT systems integration firms in Singapore204

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 systems integration firms, 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 systems integration firms are there based in Singapore?

RevenueBase identified 227 IT systems integration firms 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?

Convergint Asia Pacific, headquartered in Singapore, tops this list with the largest team on record.

Which city has the most IT systems integration firms?

Singapore leads with 204 headquartered companies, followed by Ang Mo Kio (1) and Bishan (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 1,199 verified decision-maker contacts tracked across these 227 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 28, 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.