Company lists · Data refreshed November 2026

Top 23 Outbound call centers services based in India

RevenueBase identified 815 company matches for outbound call centers services associated with India as of November 2026 and tracks 24,249 professional contacts across them, including 835 with verified work emails. Pune is the largest hub.

This list covers company matches for outbound call centers services associated with India, 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 November 5, 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 Nov 5, 2026 How this list was built
815Companies
24,249Contacts tracked
835Verified emails
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The 23 largest outbound call centers services based in India

Ranked by team size
Top 23 of 815 company matches for outbound call centers services based in India, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchNoida, IndiaHQ recorded Nov 5, 20261,001-5,0001,988 contacts →

Exact match

“NSBBPO is a leading Business Process Outsourcing (BPO/BPM) services organization specializing in the area of CX & business support solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchHyderabad, IndiaHQ recorded Nov 5, 20261,001-5,0001,132 contacts →

Exact match

“Even the markets know that we’re the good call’!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchNoida, IndiaHQ recorded Nov 5, 20261,001-5,000896 contacts →

Exact match

“inTarvo stands for our core ideology of Delivering Value (inT+arvo=Integration + Value).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchJaipur, IndiaHQ recorded Nov 5, 2026501-1,000681 contacts →

Exact match

“We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchGurgaon, IndiaHQ recorded Nov 5, 20261,001-5,000650 contacts →

Exact match

“Welcome to the India page of Transcom!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchBangalore, IndiaHQ recorded Nov 5, 20261,001-5,000464 contacts →

Exact match

“ExpertCallers, a Flatworld Solutions company, is a well-established and reputed modern day call center outsourcing company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchKolkata, IndiaHQ recorded Nov 5, 20261,001-5,000446 contacts →

Exact match

“As a company with the potential to establish a strong foothold within the BPO domain Mervice promises to go beyond ensuring quality inbound and outbound services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchNagpur, IndiaHQ recorded Nov 5, 202651-200421 contacts →

Exact match

“TLM empowers businesses to generate revenue through their qualified leads.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchNew Delhi, IndiaHQ recorded Nov 5, 2026201-500297 contacts →

Exact match

“Navigant Technologies is an ISO 9001-2008 certified international call center headquartered in Delhi, India.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchKochi, IndiaHQ recorded Nov 5, 20261,001-5,000280 contacts →

Exact match

“Eben Telecom, a team with a clear concept of Customer Retention Management was established in the year 1995 in Cochin, the business and financial hub of Kerala.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchJaipur, IndiaHQ recorded Nov 5, 2026501-1,000257 contacts →

Exact match

“VKALP is young and transparent BPO, operating out of Jaipur, India.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchThane, IndiaHQ recorded Nov 5, 202651-200201 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchNoida, IndiaHQ recorded Nov 5, 2026501-1,000198 contacts →

Exact match

“Radiate E Services Pvt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchMohali, IndiaHQ recorded Nov 5, 202651-200190 contacts →

Exact match

“RevClerx is a global provider for all needs for website designing, lead generation services, telemarketing services, lead qualification, web development, Digital marketing, and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchMumbai, IndiaHQ recorded Nov 5, 2026201-500173 contacts →

Exact match

“Excel Infoways Ltd is a Leading Customer Contact Centre providing Voice Based Services in the areas of Collections, Telemarketing and Customer Care.It offers a range of customer…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchNavi Mumbai, IndiaHQ recorded Nov 5, 20261,001-5,000166 contacts →

Exact match

“Finmech Business Services Pvt Ltd is a leading AI-enabled BPO and Call Center services provider, helping businesses improve customer engagement, increase sales conversions, and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchPune, IndiaHQ recorded Nov 5, 2026201-500164 contacts →

Exact match

“Nextgen CX services, explore fast, reliable, efficient on-demand services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchAhmedabad, IndiaHQ recorded Nov 5, 202651-200154 contacts →

Exact match

“Infomatic Solutions is a Business Process Outsourcing solution provider with a business office based in Ahmedabad, India.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchNew Delhi, IndiaHQ recorded Nov 5, 2026201-500128 contacts →

Exact match

“Ebullient Services provides clients with successful business process outsourcing (BPO) solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchPatna, IndiaHQ recorded Nov 5, 202611-50126 contacts →

Exact match

“NORTHERN IT SERVICES PRIVATE LIMITED is a company based out of BESIDES 9 TO 9 SUPER MARKET, RAMNAGARI MORE SHIANA DIGHA ROAD, PATNA, Bihar, India.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchAhmedabad, IndiaHQ recorded Nov 5, 202651-200112 contacts →

Exact match

“Established in 2008, Mazda Consultancy Services Pvt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchDelhi, IndiaHQ recorded Nov 5, 202651-200104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchNew Delhi, IndiaHQ recorded Nov 5, 2026501-1,000103 contacts →

Exact match

“MIST IT Services Private Limited is a business solutions company helping organisations manage critical business processes through verification, operational and technology…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 23 of 815 outbound call centers services based in India

See the full list, filter by size, metro and specialty, and access 835 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outbound call centers services based in India at a glance

As of Nov 5, 2026
3.4%Verified-email coverage
29.8Average contacts per company
11-50Median size (employees)
11.0%Largest-city concentration · Pune
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
153
11-50
328
51-200
206
201-500
71
501-1,000
26
1,001-5,000
24
5,001-10,000
4
10001+
1

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 815 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 India whose business descriptions match “outbound call centers services” 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 835 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 November 5, 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.

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 “outbound call centers services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outbound call centers services are there based in India?

RevenueBase identified 815 company matches for outbound call centers services associated with India as of November 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?

NSB BPO Solutions Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most outbound call centers services?

Pune leads with 90 company records, followed by Noida (68) and Kolkata (61).

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 835 professional contacts with verified work emails tracked across these 815 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 November 5, 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.