Company lists · Data refreshed September 2026

Top 9 Contact centers based in Mumbai, India

RevenueBase identified 44 contact centers headquartered in Mumbai, India as of September 2026 and tracks 17,898 professional contacts across them, including 1,592 with verified work emails. Noida is the largest hub.

This list covers contact centers headquartered in Mumbai, 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 14, 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 14, 2026 86% judged on-target in blind review
44Companies
17,898Contacts tracked
1,592Verified emails
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The 9 largest contact centers based in Mumbai, India

Ranked by team size
Top 9 of 44 contact centers based in Mumbai, India, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to contact centers: 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 evidenceMumbai, IndiaHQ checked Sep 14, 202651-200553 contacts →

Indirect evidence

“At Futwork, we specialize in omnichannel communication solutions that integrate seamlessly with your business.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceMumbai, IndiaHQ checked Sep 14, 2026201-500348 contacts →

Indirect evidence

“CSInfocomm: Elevating Customer Experience, Redefining Solutions CSInfocomm is a dynamic Solution Provider renowned for elevating customer experience through innovative solutions.”

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidenceMumbai, IndiaHQ checked Sep 14, 2026201-500163 contacts →

Partial 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 14, 2026
4Indirect evidenceMumbai, IndiaHQ checked Sep 14, 202651-200113 contacts →

Indirect evidence

“intalk.io - An Omnichannel Customer Interaction Platform by Agami Tech.”

Source: RevenueBase Database · checked Sep 14, 2026
5Strong evidenceMumbai, IndiaHQ checked Sep 14, 20261,001-5,00043 contacts →

Strong evidence

“Mobile Telecommunications Limited is a public incorporated company, listed at Bombay Stock Exchange and National Stock Exchange and is an offshore outsourced contact center…”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceMumbai, IndiaHQ checked Sep 14, 202651-20041 contacts →

Indirect evidence

“VonUp BPO is a provider of business process outsourcing services focusing on the voice and non-voice based segments.”

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceMumbai, IndiaHQ checked Sep 14, 202651-20020 contacts →

Strong evidence

“Callarity is a new-age contact center that delivers best-in-class productivity for our clients utilizing advanced technology, remote team, and industry expertise.”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceMumbai, IndiaHQ checked Sep 14, 202651-20013 contacts →

Indirect evidence

“Kasyap iServe is an BPO based in Mumbai.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceMumbai, IndiaHQ checked Sep 14, 202611-5010 contacts →

Indirect evidence

“The company is based in Mumbai, India, and offers business process outsourcing.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 9 of 44 contact centers based in Mumbai, India

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,592 reachable decision-makers.

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Contact centers based in Mumbai, India at a glance

As of Sep 14, 2026
8.9%Verified-email coverage
406.8Average contacts per company
51-200Median size (employees)
170.5%Largest-city concentration · Noida
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
5
11-50
15
51-200
10
201-500
6
501-1,000
3
1,001-5,000
3
5,001-10,000
1
10001+
1

Email recency for this list is measured across the whole India list rather than for Mumbai, so it is reported there. Company counts and contact totals on this page are exact for Mumbai, over 44 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 contact centers, 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 Mumbai, India whose own description of what they do matches “contact centers”. 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 contact centers), 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 contact centers, and records with no verified work email. Companies headquartered outside Mumbai 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, 1,592 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 14, 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.

Contact centers by metro in India

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 contact centers, 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 contact centers are there based in Mumbai, India?

RevenueBase identified 44 contact centers headquartered in Mumbai, 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?

Futwork, headquartered in Mumbai, tops this list with the largest team on record.

Which city has the most contact centers?

Noida leads with 75 headquartered companies, followed by Kolkata (50) and Bangalore (46).

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 1,592 verified decision-maker contacts tracked across these 44 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 14, 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.