Company lists · Data refreshed September 2026

Top 13 Inside sales companies based in Singapore

RevenueBase identified 66 inside sales companies headquartered in Singapore as of September 2026 and tracks 725 professional contacts across them, including 76 with verified work emails. Singapore is the largest hub.

This list covers inside sales 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 20, 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 20, 2026 86% judged on-target in blind review
66Companies
725Contacts tracked
76Verified emails
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The 13 largest inside sales companies based in Singapore

Ranked by team size
Top 13 of 66 inside sales companies based in Singapore, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to inside sales 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSingaporeHQ checked Sep 20, 202651-200108 contacts →

Indirect evidence

“Pulley Ascent is a business development company that specialises in B2B organisations.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceSingaporeHQ checked Sep 20, 202651-20058 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 20, 2026
3Indirect evidenceSingaporeHQ checked Sep 20, 202651-20054 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceSingaporeHQ checked Sep 20, 202611-5040 contacts →

Indirect evidence

“Acumen Intelligence empowers businesses with data-driven solutions to fuel growth and deliver measurable success.”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceSingaporeHQ checked Sep 20, 202651-20026 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 20, 2026
6Partial evidenceSingaporeHQ checked Sep 20, 202611-5019 contacts →

Partial evidence

“At Expand In Asia, our mission is to help B2B tech companies expand their sales pipeline globally.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceSingaporeHQ checked Sep 20, 202651-20011 contacts →

Indirect evidence

“We connect businesses from a variety of verticals across locations through proven lead generation and appointment setting strategies.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceSingaporeHQ checked Sep 20, 20261-107 contacts →

Partial evidence

“Enabling sales development and outbound lead generation.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceSingaporeHQ checked Sep 20, 202651-2005 contacts →

Indirect evidence

“Understanding what our clients need even before we speak, and utilizing the knowledge we have acquired from those we have worked with over the years contribute to our experience…”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceSingaporeHQ checked Sep 20, 20261-105 contacts →

Partial evidence

“Outbound Sales Systems for Agencies: We help advanced agencies add an extra 6-figures in outbound-generated revenue, using built-for-you outbound sales systems, so they can fill…”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceSingaporeHQ checked Sep 20, 202611-504 contacts →

Partial evidence

“Vantager Solutions is your outsourced B2B leads generation and sales expert.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceSingaporeHQ checked Sep 20, 202611-503 contacts →

Indirect evidence

“Most agencies generate leads.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceSingaporeHQ checked Sep 20, 20261-102 contacts →

Indirect evidence

“Convertinbox is a Business Development Firm headquartered in Singapore that specializes in helping B2B Software companies scale their pipelines with AI-driven systems, without…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 13 of 66 inside sales companies based in Singapore

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Inside sales companies based in Singapore at a glance

As of Sep 20, 2026
10.5%Verified-email coverage
11.0Average contacts per company
11-50Median size (employees)
93.9%Largest-city concentration · Singapore
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
19
51-200
20
201-500
8
501-1,000
1

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 66 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 inside sales 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 “inside sales 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 inside sales 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 inside sales 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, 76 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 20, 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.

Inside sales companies by metro

  • Inside sales companies in Singapore62

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 inside sales 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 inside sales companies are there based in Singapore?

RevenueBase identified 66 inside sales 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?

Pulley Ascent Asia PTE LTD, headquartered in Singapore, tops this list with the largest team on record.

Which city has the most inside sales companies?

Singapore leads with 62 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 76 verified decision-maker contacts tracked across these 66 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 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 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.