Company lists · Data refreshed November 2026

Top 25 Offshore voice services providers based in India

RevenueBase identified 611 company matches for offshore voice services providers associated with India as of November 2026 and tracks 37,903 professional contacts across them, including 1,210 with verified work emails. Noida is the largest hub.

This list covers company matches for offshore voice services providers 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 6, 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 6, 2026 How this list was built
611Companies
37,903Contacts tracked
1,210Verified emails
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The 25 largest offshore voice services providers based in India

Ranked by team size
Top 25 of 611 company matches for offshore voice services providers based in India, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 6, 202610001+15,893 contacts →

Exact match

“iEnergizer is a leading Business Process Outsourcing provider (“BPO”) of customer management solutions dedicated to delivering performance while actively supporting and advocating…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBhopal, IndiaHQ recorded Nov 6, 20261,001-5,0001,917 contacts →

Exact match

“Transforming Customer Experiences Worldwide** At Technotask, we've embarked on a journey of exponential growth and innovation since our inception in March 2020.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchHyderabad, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
4Exact matchChennai, IndiaHQ recorded Nov 6, 20261,001-5,000959 contacts →

Exact match

“Started operation on 2004 with 25 employees, Currently iMarque has grown into a powerhouse of over professionals today, consistently achieving an impressive 40% average annual…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchJaipur, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
6Exact matchGurgaon, IndiaHQ recorded Nov 6, 20261,001-5,000650 contacts →

Exact match

“Welcome to the India page of Transcom!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBangalore, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
8Exact matchKolkata, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
9Exact matchNew Delhi, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
10Exact matchMumbai, IndiaHQ recorded Nov 6, 2026201-500261 contacts →

Exact match

“Pinnacle Global provides outsourcing/offshoring services to businesses all around the globe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchJaipur, IndiaHQ recorded Nov 6, 2026501-1,000257 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchThane, IndiaHQ recorded Nov 6, 202651-200201 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchNoida, IndiaHQ recorded Nov 6, 2026501-1,000198 contacts →

Exact match

“Radiate E Services Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMumbai, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
15Exact matchKolkata, IndiaHQ recorded Nov 6, 202651-200169 contacts →

Exact match

“When young minds unleash their voracious ambitions, dreams and aspirations the outcome is always awe-inspiring.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNew Delhi -, IndiaHQ recorded Nov 6, 202651-200168 contacts →

Exact match

“World Phone Internet Services Private Limited has ushered in a new era in communications for India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNavi Mumbai, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
18Exact matchPune, IndiaHQ recorded Nov 6, 2026201-500164 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMumbai, IndiaHQ recorded Nov 6, 20261,001-5,000163 contacts →

Exact match

“For over two decades, Advait Techserve has been helping organizations execute, operate, and scale mission-critical business functions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchChennai, IndiaHQ recorded Nov 6, 20261,001-5,000160 contacts →

Exact match

“DATAMARK Inc, a provider of omni-channel contact centers and business process outsourcing (BPO) services since 1989, employs more than at our facilities in the United States…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAhmedabad, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
22Exact matchChennai, IndiaHQ recorded Nov 6, 202651-200144 contacts →

Exact match

“Unifiedvoice is a globally recognized VoIP service and solutions provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNew Delhi, IndiaHQ recorded Nov 6, 2026201-500128 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchPatna, IndiaHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
25Exact matchAhmadabad, IndiaHQ recorded Nov 6, 202651-200112 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 611 offshore voice services providers based in India

See the full list, filter by size, metro and specialty, and access 1,210 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offshore voice services providers based in India at a glance

As of Nov 6, 2026
3.2%Verified-email coverage
62.0Average contacts per company
11-50Median size (employees)
8.8%Largest-city concentration · Noida
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
101
11-50
241
51-200
154
201-500
53
501-1,000
27
1,001-5,000
27
5,001-10,000
4
10001+
2

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 611 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 “offshore voice services providers” 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 1,210 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 6, 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.

Offshore voice services providers 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 “offshore voice services providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore voice services providers are there based in India?

RevenueBase identified 611 company matches for offshore voice services providers 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?

Ienergizer tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most offshore voice services providers?

Noida leads with 54 company records, followed by Bangalore (48) and Kolkata (44).

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 1,210 professional contacts with verified work emails tracked across these 611 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 6, 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.