Company lists · Data refreshed September 2026

Top 25 Outsource companies based in Mumbai, India

Name: Outsource companies based in Mumbai, India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 242 companies tracked

RevenueBase identified 242 outsource companies headquartered in Mumbai, India as of September 2026 and tracks 15,191 professional contacts across them, including 1,610 with verified work emails. Ahmedabad is the largest hub.

This list covers outsource 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 21, 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 21, 2026 86% judged on-target in blind review

242Companies

15,191Contacts tracked

1,610Verified emails

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The 25 largest outsource companies based in Mumbai, India

Ranked by team size

Top 25 of 242 outsource companies based in Mumbai, India, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to outsource 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Capita India	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	5,001-10,000	1,757 contacts →
	Indirect evidence “Established in 2004, Capita India is part of Capita plc, the UK's No.” Source: RevenueBase Database · checked Sep 21, 2026
2	Altius Customer Services PVT LTD	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	501-1,000	732 contacts →
	Strong evidence “Altius is a leading provider of Information Technology and BPO (Business Process Outsourcing) Services.” Source: RevenueBase Database · checked Sep 21, 2026
3	Pace Setters Business Solutions Pvt.Ltd	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	5,001-10,000	686 contacts →
	Indirect evidence “We offer Business Process Services that are efficient, strategic, economical and deliver business outcomes beyond expectations.” Source: RevenueBase Database · checked Sep 21, 2026
4	Pinnacle Global Group	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	201-500	257 contacts →
	Strong evidence “Pinnacle Global provides outsourcing/offshoring services to businesses all around the globe.” Source: RevenueBase Database · checked Sep 21, 2026
5	Altruist BPO Services	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	10001+	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 21, 2026
6	Excel Infoways LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	201-500	163 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 21, 2026
7	Rheal Software Private Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	155 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 21, 2026
8	Advait Techserve	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	1,001-5,000	144 contacts →
	Indirect evidence “Advait Techserve India Pvt Ltd, established in 2004 and headquartered in Mumbai, specializes in crafting bespoke offshore remote office solutions.” Source: RevenueBase Database · checked Sep 21, 2026
9	Ushta TE Consultancy Services LLP	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	95 contacts →
	Indirect evidence “Ushta Te Consultancy Services was ranked among the 20 Most Valuable Consulting Companies in India in 2022 and the Top 25 most admired companies in the HR industry in 2019 by The…” Source: RevenueBase Database · checked Sep 21, 2026
10	Diallo	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	501-1,000	83 contacts →
	Strong evidence “Business Process Outsourcing” Source: RevenueBase Database · checked Sep 21, 2026
11	Infinzi	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	80 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 21, 2026
12	Reis Staffing & HR Services	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	72 contacts →
	Indirect evidence “Reis Staffing & HR Services Pvt Ltd (Reis HR) was established in 2003 with a vision to deliver reliable, high-quality recruitment and staffing solutions across Global Capability…” Source: RevenueBase Database · checked Sep 21, 2026
13	Connections Direct India Private Limited	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	501-1,000	65 contacts →
	Strong evidence “For All Your Knowledge Outsourcing Needs” Source: RevenueBase Database · checked Sep 21, 2026
14	Gratitude	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	201-500	62 contacts →
	Indirect evidence “We at Gratitude India are able to successfully cater to the recruitment and staffing requirements of BPO/Ecommerce/Other sectors doing Entry level Hiring from onshore to offshore…” Source: RevenueBase Database · checked Sep 21, 2026
15	Galaxy IT Services Private Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	58 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
16	Zedex Info Pvt. LTD	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	50 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 21, 2026
17	Health Tech Knowledge Solutions	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	44 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 21, 2026
18	Mobile Telecommunications Limited	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	1,001-5,000	43 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 21, 2026
19	Vonup Solutions Private Limited	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	41 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 21, 2026
20	Spectrum Consulting Services	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	31 contacts →
	Strong evidence “Spectrum is an innovative outsourcing business with a unique 100% work-from-home model.” Source: RevenueBase Database · checked Sep 21, 2026
21	Arsh Consulting & Outsourcing	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	31 contacts →
	Strong evidence “About Arsh Arsh consulting and Outsourcing are a premier recruitment and HR Outsourcing firm headquartered at Mumbai with reach of operations extending across India, Middle East…” Source: RevenueBase Database · checked Sep 21, 2026
22	Ratein Infotech India Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	29 contacts →
	Indirect evidence “Ratein Infotech India Private Limited incorporated in the year August with its roots that can be traced to the turn of this century.” Source: RevenueBase Database · checked Sep 21, 2026
23	Business Access India Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	25 contacts →
	Indirect evidence “Business Access India Private Limited is a family owned company established in 1997.” Source: RevenueBase Database · checked Sep 21, 2026
24	Staffing Global Network LLP	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	22 contacts →
	Indirect evidence “At Staffing Global we bring lucrative opportunities to the talented workforce in India by connecting them with our patrons based in the US.” Source: RevenueBase Database · checked Sep 21, 2026
25	Support Direct India	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	22 contacts →
	Indirect evidence “With our rich repertoire and a collective experience of 23 years in the field of backend support services and marketing & sales, Support direct India is a trusted Business Process…” Source: RevenueBase Database · checked Sep 21, 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: outsource companies. 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 outsource companies.
Partial evidence: Its own public description names part of outsource companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name outsource companies. 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 242 outsource companies based in Mumbai, India

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Outsource companies based in Mumbai, India at a glance

As of Sep 21, 2026

10.6%Verified-email coverage

62.8Average contacts per company

11-50Median size (employees)

151.7%Largest-city concentration · Ahmedabad

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

106

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 242 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 outsource 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 “outsource 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 outsource 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 outsource 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, 1,610 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 21, 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.

Outsource companies 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 outsource 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 outsource companies are there based in Mumbai, India?

RevenueBase identified 242 outsource 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?

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

Which city has the most outsource companies?

Ahmedabad leads with 367 headquartered companies, followed by New Delhi (302) and Noida (296).

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 1,610 verified decision-maker contacts tracked across these 242 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 21, 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.