Company lists · Data refreshed September 2026

Top 25 Customer retention call center services based in India

Name: Customer retention call center services based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 302 companies tracked

RevenueBase identified 302 customer retention call center services headquartered in India as of September 2026 and tracks 30,000 professional contacts across them, including 594 with verified work emails. Noida is the largest hub.

This list covers customer retention call center services headquartered in India, 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

302Companies

30,000Contacts tracked

594Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest customer retention call center services based in India

Ranked by team size

Top 25 of 302 customer retention call center services based in India, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to customer retention call center services: 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	Ienergizer	Partial evidence	Noida, IndiaHQ checked Sep 28, 2026	10001+	14,745 contacts →
	Partial evidence “iEnergizer is a leading Business Process Outsourcing provider (“BPO”) of customer management solutions dedicated to delivering performance while actively supporting and advocating…” Source: RevenueBase Database · checked Sep 28, 2026
2	Hrhnext Services Limited	Partial evidence	Hyderabad, IndiaHQ checked Sep 28, 2026	1,001-5,000	1,076 contacts →
	Partial evidence “Even the markets know that we’re the good call’!” Source: RevenueBase Database · checked Sep 28, 2026
3	Girnar Care	Strong evidence	Jaipur, IndiaHQ checked Sep 28, 2026	501-1,000	649 contacts →
	Strong evidence “We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.” Source: RevenueBase Database · checked Sep 28, 2026
4	Transcom India	Indirect evidence	Gurugram, IndiaHQ checked Sep 28, 2026	1,001-5,000	488 contacts →
	Indirect evidence “Welcome to the India page of Transcom!” Source: RevenueBase Database · checked Sep 28, 2026
5	Digitech Call System Pvt. LTD	Indirect evidence	Noida, IndiaHQ checked Sep 28, 2026	5,001-10,000	467 contacts →
	Indirect evidence “DigiTech is one of the fastest growing Outsourcing & Offsourcing company in Delhi/NCR.” Source: RevenueBase Database · checked Sep 28, 2026
6	Life At Ecpl	Strong evidence	Bengaluru, IndiaHQ checked Sep 28, 2026	1,001-5,000	455 contacts →
	Strong evidence “ExpertCallers, a Flatworld Solutions company, is a well-established and reputed modern day call center outsourcing company.” Source: RevenueBase Database · checked Sep 28, 2026
7	Mervice Infotech Pvt. LTD	Indirect evidence	Kolkata, IndiaHQ checked Sep 28, 2026	1,001-5,000	395 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
8	ATS Services PVT LTD	Partial evidence	Faridabad, IndiaHQ checked Sep 28, 2026	201-500	318 contacts →
	Partial evidence “We are a diversified services company with extensive experience in design and execution of customer engagement programs meeting diverse requirements of our clients.” Source: RevenueBase Database · checked Sep 28, 2026
9	Eben Telecom Pvt. LTD	Strong evidence	Kochi, IndiaHQ checked Sep 28, 2026	1,001-5,000	260 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
10	Ican BPO Pvt. LTD	Strong evidence	Thane, IndiaHQ checked Sep 28, 2026	201-500	242 contacts →
	Strong evidence “ICAN BPO Private Limited (ICAN) is a full service solutions provider with deep domain expertise in the areas of customer acquisition and retention across verticals.” Source: RevenueBase Database · checked Sep 28, 2026
11	Hansa Direct	Strong evidence	Navi Mumbai, IndiaHQ checked Sep 28, 2026	501-1,000	214 contacts →
	Strong evidence “Hansa Direct – a part of Hansa Customer Equity, is a one-of-a-kind Customer Experience Centre backed by specialists across data, analytics, MarTech and digital.” Source: RevenueBase Database · checked Sep 28, 2026
12	Radiate E Services PVT LTD	Indirect evidence	Noida, IndiaHQ checked Sep 28, 2026	501-1,000	184 contacts →
	Indirect evidence “Radiate E Services Pvt.” Source: RevenueBase Database · checked Sep 28, 2026
13	Excel Infoways LTD	Strong evidence	Mumbai, IndiaHQ checked Sep 28, 2026	201-500	163 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
14	ADA Tech Solutions PVT LTD	Indirect evidence	Pune, IndiaHQ checked Sep 28, 2026	201-500	158 contacts →
	Indirect evidence “Nextgen CX services, explore fast, reliable, efficient on-demand services.” Source: RevenueBase Database · checked Sep 28, 2026
15	Precistat IT Solutions	Partial evidence	Visakhapatnam, IndiaHQ checked Sep 28, 2026	201-500	144 contacts →
	Partial evidence “Precistat is a customer experience (CX) consultancy firm.” Source: RevenueBase Database · checked Sep 28, 2026
16	Convergys Call Centre	Indirect evidence	Thane, IndiaHQ checked Sep 28, 2026	51-200	140 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
17	Ebullient Services	Indirect evidence	New Delhi, IndiaHQ checked Sep 28, 2026	201-500	129 contacts →
	Indirect evidence “Ebullient Services provides clients with successful business process outsourcing (BPO) solutions.” Source: RevenueBase Database · checked Sep 28, 2026
18	Northern IT Services Private Limited	Indirect evidence	Patna, IndiaHQ checked Sep 28, 2026	11-50	110 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
19	Gandalf IT Services LLP	Strong evidence	Gurgaon, IndiaHQ checked Sep 28, 2026	51-200	71 contacts →
	Strong evidence “Gandalf Services is a full-service customer engagement centre that provides Inbound, Outbound, Back Office and Consulting Services for outsourced environments.” Source: RevenueBase Database · checked Sep 28, 2026
20	1touchsolutions	Strong evidence	Noida, IndiaHQ checked Sep 28, 2026	201-500	64 contacts →
	Strong evidence “One Touch Solutions was founded in Melbourne, Australia and specializes all forms of call centre outsourcing services.” Source: RevenueBase Database · checked Sep 28, 2026
21	Radiaant Captive India Private Limited	Partial evidence	Pune, IndiaHQ checked Sep 28, 2026	201-500	63 contacts →
	Partial evidence “Radiaant Captive (India) Pvt Ltd is a ISO certified company which supports clients across Pan India with a blend model of Contact Center Solutions & Field Operation Management…” Source: RevenueBase Database · checked Sep 28, 2026
22	Mainstay Teleservices PVT LTD	Indirect evidence	Bangalore, IndiaHQ checked Sep 28, 2026	201-500	63 contacts →
	Indirect evidence “Mainstay offshore is an award winning offshore services provider providing Technical services in the areas of network, Dialup, browser, email, OS, hardware, software and web…” Source: RevenueBase Database · checked Sep 28, 2026
23	Omiz Solutions PVT LTD	Strong evidence	Nashik, IndiaHQ checked Sep 28, 2026	51-200	59 contacts →
	Strong evidence “Omiz Solutions is one stop solutions for Customer Service, Inbound Sales, Digital Marketing, Chat Support, Technical Support, CRM, Call Center, Google PPC, and Lead Generation We…” Source: RevenueBase Database · checked Sep 28, 2026
24	Direxions	Partial evidence	Mumbai, IndiaHQ checked Sep 28, 2026	11-50	57 contacts →
	Partial evidence “We are loyalty, CRM and customer engagement specialists, who have helped more than a 100 clients maximise customer profitability and optimise their customers’ experiences by…” Source: RevenueBase Database · checked Sep 28, 2026
25	KIA BIZ	Partial evidence	Pune, IndiaHQ checked Sep 28, 2026	11-50	57 contacts →
	Partial evidence “KIA Biz provides a unique mechanism of connecting to your prospects and existing customers with a direct positive impact on your results.” 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: customer retention call center services. 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 customer retention call center services.
Partial evidence: Its own public description names part of customer retention call center services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer retention call center services. 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 302 customer retention call center services based in India

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 594 reachable decision-makers.

Free signup · no credit card

View the full list →

Customer retention call center services based in India at a glance

As of Sep 28, 2026

2.0%Verified-email coverage

99.3Average contacts per company

51-200Median size (employees)

8.6%Largest-city concentration · Noida

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

103

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 302 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 customer retention call center services, 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 India whose own description of what they do matches “customer retention call center services”. 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 customer retention call center services), 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 customer retention call center services, and records with no verified work email. Companies headquartered outside India 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, 594 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.

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 customer retention call center services, 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 customer retention call center services are there based in India?

RevenueBase identified 302 customer retention call center services headquartered in India 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?

Ienergizer, headquartered in Noida, tops this list with the largest team on record.

Which city has the most customer retention call center services?

Noida leads with 26 headquartered companies, followed by Pune (24) and Bangalore (21).

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 594 verified decision-maker contacts tracked across these 302 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.

Ready to reach these companies? Verified emails and direct dials for all 302 customer retention call center services based in India. Start with a free account, no credit card.

Download this list →

Related lists

Customer retention call center services by geography

Browse the directory

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.