Company lists · Data refreshed September 2026

Top 25 Business process outsourcing software companies based in Mumbai, India

RevenueBase identified 217 business process outsourcing software companies headquartered in Mumbai, India as of September 2026 and tracks 34,779 professional contacts across them, including 4,331 with verified work emails. Across India, Bangalore is the largest hub for this category (281 companies); Mumbai has 217.

This list covers business process outsourcing software companies 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 27, 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 27, 2026 86% judged on-target in blind review
217Companies
34,779Contacts tracked
4,331Verified emails
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The 25 largest business process outsourcing software companies based in Mumbai, India

Ranked by team size
Top 25 of 217 business process outsourcing software companies based in Mumbai, India, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to business process outsourcing software 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 evidenceMumbai, IndiaHQ checked Sep 27, 202610001+17,257 contacts →

Indirect evidence

“Firstsource Solutions Limited, an RP-Sanjiv Goenka Group company, is a global intelligence partner to enterprises across healthcare, banking and financial services…”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceMumbai, IndiaHQ checked Sep 27, 20265,001-10,0001,757 contacts →

Indirect evidence

“Established in 2004, Capita India is part of Capita plc, the UK's No.”

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceMumbai, IndiaHQ checked Sep 27, 202610001+1,466 contacts →

Partial evidence

“We’re Tech Mahindra Business Process Services.”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceMumbai, IndiaHQ checked Sep 27, 20261,001-5,0001,025 contacts →

Partial evidence

“Osource Global is a leading business process solutions and services partner that helps global enterprises reinvent their digital core through gen-AI and human ingenuity.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceMumbai, IndiaHQ checked Sep 27, 202610001+744 contacts →

Partial evidence

“S2 Infotech International Ltd (S2IIL)- formerly known as S2 Infotech Pvt Ltd, is an ISO Certified & CMMI Level 5 and PCMM Level 3, global software & solutions company that is…”

Source: RevenueBase Database · checked Sep 27, 2026
6Strong evidenceMumbai, IndiaHQ checked Sep 27, 2026501-1,000732 contacts →

Strong evidence

“Altius is a leading provider of Information Technology and BPO (Business Process Outsourcing) Services.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceMumbai, IndiaHQ checked Sep 27, 20265,001-10,000686 contacts →

Partial evidence

“We offer Business Process Services that are efficient, strategic, economical and deliver business outcomes beyond expectations.”

Source: RevenueBase Database · checked Sep 27, 2026
8Partial evidenceMumbai, IndiaHQ checked Sep 27, 2026201-500257 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceMumbai, IndiaHQ checked Sep 27, 202651-200212 contacts →

Indirect evidence

“FIRST, A LITTLE HISTORY.”

Source: RevenueBase Database · checked Sep 27, 2026
10Strong evidenceMumbai, IndiaHQ checked Sep 27, 202610001+193 contacts →

Strong evidence

“Altruist BPO is a leading global integrated solutions provider in Business Process Outsourcing, Customer Experience Management and IT Services with presence across India, Africa…”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceMumbai, IndiaHQ checked Sep 27, 2026201-500163 contacts →

Indirect 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 27, 2026
12Indirect evidenceMumbai, IndiaHQ checked Sep 27, 202651-200155 contacts →

Indirect evidence

“At Rheal, we realize that your business must keep pace with the speed of thought, and we believe that your ideas and enterprises deserve substantial reinvention at an affordable…”

Source: RevenueBase Database · checked Sep 27, 2026
13Strong evidenceMumbai, IndiaHQ checked Sep 27, 2026501-1,00083 contacts →

Strong evidence

“Business Process Outsourcing”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceMumbai, IndiaHQ checked Sep 27, 202651-20080 contacts →

Indirect evidence

“We founded Infinzi in 2017 with a vision to empower business owners to focus on strengthening the core competencies of their businesses.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceMumbai, IndiaHQ checked Sep 27, 202651-20079 contacts →

Indirect evidence

“ALFA KPO PRIVATE LIMITED is a company based out of 704, GOLDEN CHAMBERS, OPP.”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceMumbai, IndiaHQ checked Sep 27, 2026501-1,00065 contacts →

Partial evidence

“For All Your Knowledge Outsourcing Needs”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceMumbai, IndiaHQ checked Sep 27, 202651-20061 contacts →

Partial evidence

“Established in 2012, Anderson Business Solutions (Anderson BPO) provides comprehensive Finance & Accounting (F&A) outsourcing services to accounting firms & SME clients based in…”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceMumbai, IndiaHQ checked Sep 27, 202611-5058 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceMumbai, IndiaHQ checked Sep 27, 202651-20051 contacts →

Indirect evidence

“Silverline Technologies Limited, formerly known as Silverline Industries Limited, was incorporated in April 1992 and was India's 1st company to be listed in the New York Stock…”

Source: RevenueBase Database · checked Sep 27, 2026
20Strong evidenceMumbai, IndiaHQ checked Sep 27, 202611-5050 contacts →

Strong evidence

“Zedexinfo is one of the leading providers of technology services and end-to-end business process outsourcing solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceMumbai, IndiaHQ checked Sep 27, 202611-5044 contacts →

Indirect evidence

“Health Tech Knowledge Solutions (HTKS) was founded in September 2014 with a vision of providing healthcare services to providers in the United States.”

Source: RevenueBase Database · checked Sep 27, 2026
22Strong evidenceMumbai, IndiaHQ checked Sep 27, 2026201-50043 contacts →

Strong evidence

“KontactGlobal is a present-day business & knowledge process outsourcing, education counselling and management consulting company that sees potential in every business and every…”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceMumbai, IndiaHQ checked Sep 27, 20261,001-5,00043 contacts →

Indirect 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 27, 2026
24Strong evidenceMumbai, IndiaHQ checked Sep 27, 202651-20041 contacts →

Strong 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 27, 2026
25Partial evidenceMumbai, IndiaHQ checked Sep 27, 202611-5031 contacts →

Partial evidence

“Spectrum is an innovative outsourcing business with a unique 100% work-from-home model.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 217 business process outsourcing software companies based in Mumbai, India

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Business process outsourcing software companies based in Mumbai, India at a glance

As of Sep 27, 2026
12.5%Verified-email coverage
160.3Average contacts per company
11-50Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
42
11-50
98
51-200
38
201-500
12
501-1,000
9
1,001-5,000
8
5,001-10,000
5
10001+
5

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 217 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 business process outsourcing software 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 Mumbai, India whose own description of what they do matches “business process outsourcing software 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 business process outsourcing software 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 business process outsourcing software companies, 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, 4,331 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 27, 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 business process outsourcing software 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 business process outsourcing software companies are there based in Mumbai, India?

RevenueBase identified 217 business process outsourcing software companies 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?

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

Which city in India has the most business process outsourcing software companies?

Bangalore leads India with 281 headquartered companies, followed by Hyderabad (269) and Ahmedabad (249). Mumbai has 217.

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 4,331 verified decision-maker contacts tracked across these 217 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 27, 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.