Company lists · Data refreshed October 2026

Top 12 Telecom services providers for call centers based in Singapore

RevenueBase identified 40 company matches for telecom services providers for call centers associated with Singapore as of October 2026 and tracks 296 professional contacts across them, including 30 with verified work emails. Singapore is the largest hub.

This list covers company matches for telecom services providers for call centers associated with Singapore, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 20, 2026 How this list was built
40Companies
296Contacts tracked
30Verified emails
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The 12 largest telecom services providers for call centers based in Singapore

Ranked by team size
Top 12 of 40 company matches for telecom services providers for call centers based in Singapore, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSingaporeHQ recorded Oct 20, 202651-20069 contacts →

Exact match

“Radiance Communications is a joint-venture between SingTel & Keppel T&T for over 2 decades.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
2Exact matchSingaporeHQ recorded Oct 20, 202611-5017 contacts →

Exact match

“TELESENSE Global Carrier Pte Ltd (TELESENSE) – “Connecting Your Voice” Founded in 2017 and headquartered in Singapore, TELESENSE is a fast-growing international telecom company…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
3Exact matchSingaporeHQ recorded Oct 20, 202611-5016 contacts →

Exact match

“INSIRO is a Top Performing Reseller of Starhub corporate telecom services from mobile, internet, data network connectivity services to voice, TV and cloud computing solutions.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
4Exact matchSingaporeHQ recorded Oct 20, 202611-5010 contacts →

Exact match

“Dacon Networks started in 1993.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
5Exact matchSingaporeHQ recorded Oct 20, 2026201-5008 contacts →

Exact match

“Twiching General trading is a leading voice termination provider, renowned for its strong presence and brand recognition in the Asian market.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
6Exact match159546, SingaporeHQ recorded Oct 20, 202611-506 contacts →

Exact match

“Teligraph Technology Pte Ltd is a telecommunications company based out of 203 HENDERSON ROAD,#10-05 HENDERSON INDUSTRIAL PARK, 159546, Singapore.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
7Exact matchDowntown Core, SingaporeHQ recorded Oct 20, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
8Exact matchSingaporeHQ recorded Oct 20, 202611-504 contacts →

Exact match

“Crystal Voice “Crystal Net Pte Ltd” is a Singapore-based company that specializes in developing innovative Internet-based telephone services using Voice over Internet Protocol…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
9Exact matchKim Hoe Point, SingaporeHQ recorded Oct 20, 202611-503 contacts →

Exact match

“Yashtel Services is a telecommunication company which has been operating in voice market from 2017 and it has Tier-1 & Tier2 interconnections and VoIP peers with more than…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
10Exact matchSingaporeHQ recorded Oct 20, 20261-103 contacts →

Exact match

“Syncbyte Networks was founded in 2005 with a mission to make complete IT and telecommunications solutions available to businesses at competitive rates.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
11Exact matchSingaporeHQ recorded Oct 20, 20261-102 contacts →

Exact match

“TOPCOM maintains a sharp focus on customer satisfaction.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
12Exact matchSingaporeHQ recorded Oct 20, 20261-101 contacts →

Exact match

“DYNATEL is a locally incorporated company whose activities are inclined towards the information, communications and technology industry that is stimulating productivity and…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase

Showing 12 of 40 telecom services providers for call centers based in Singapore

See the full list, filter by size, metro and specialty, and access 30 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecom services providers for call centers based in Singapore at a glance

As of Oct 20, 2026
10.1%Verified-email coverage
7.4Average contacts per company
11-50Median size (employees)
87.5%Largest-city concentration · Singapore
Oct 20, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
23
51-200
4
201-500
2

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 40 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Singapore whose business descriptions match “telecom services providers for call centers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 30 professional contacts with verified work emails across the full matched dataset. 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 October 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Telecom services providers for call centers by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “telecom services providers for call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom services providers for call centers are there based in Singapore?

RevenueBase identified 40 company matches for telecom services providers for call centers associated with Singapore as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Radiance Communications PTE LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecom services providers for call centers?

Singapore leads with 35 company records, followed by Downtown Core (1) and Republic Of Singapore (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 30 professional contacts with verified work emails tracked across these 40 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 20, 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 SmartSearch, 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.