Company lists · Data refreshed September 2026

Top 25 Outsourced back-office services firms based in Mumbai, India

Name: Outsourced back-office services firms 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 140 companies tracked

RevenueBase identified 140 outsourced back-office services firms headquartered in Mumbai, India as of September 2026 and tracks 6,736 professional contacts across them, including 520 with verified work emails. Ahmedabad is the largest hub.

This list covers outsourced back-office services firms 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

140Companies

6,736Contacts tracked

520Verified emails

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The 25 largest outsourced back-office services firms based in Mumbai, India

Ranked by team size

Top 25 of 140 outsourced back-office services firms 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 outsourced back-office services firms: 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	Pinnacle Global Group	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	201-500	257 contacts →
	Partial evidence “Pinnacle Global provides outsourcing/offshoring services to businesses all around the globe.” Source: RevenueBase Database · checked Sep 21, 2026
3	TSR Darashaw LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	212 contacts →
	Indirect evidence “FIRST, A LITTLE HISTORY.” Source: RevenueBase Database · checked Sep 21, 2026
4	Advait Techserve	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	1,001-5,000	144 contacts →
	Partial 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
5	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
6	Alfa KPO Private Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	79 contacts →
	Indirect evidence “ALFA KPO PRIVATE LIMITED is a company based out of 704, GOLDEN CHAMBERS, OPP.” Source: RevenueBase Database · checked Sep 21, 2026
7	Hasmukh Shah & Co. LLP	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	75 contacts →
	Indirect evidence “HSCo is a multi-disciplinary professional service firm serving in India for over 40 years.” Source: RevenueBase Database · checked Sep 21, 2026
8	Andersonbpo	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	61 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 21, 2026
9	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
10	Vonup Solutions Private Limited	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	41 contacts →
	Partial 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
11	Spectrum Consulting Services	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	31 contacts →
	Partial evidence “Spectrum is an innovative outsourcing business with a unique 100% work-from-home model.” Source: RevenueBase Database · checked Sep 21, 2026
12	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
13	Sakash Group	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	1,001-5,000	22 contacts →
	Indirect evidence “Sakash Group is a 38 year old well-established and professionally managed group in the field of business Support Services, Resource Management & Facility Management Services…” Source: RevenueBase Database · checked Sep 21, 2026
14	Access Systems A Division Of Sanneet Computers Pvt. LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	51-200	20 contacts →
	Partial evidence “ACCESS SYSTEMS (A Division of Sanneet Computers Pvt Ltd) is a fast growing Information Technology company in India engaged in Business Process Outsourcing Services.” Source: RevenueBase Database · checked Sep 21, 2026
15	Brain4u	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	18 contacts →
	Indirect evidence “Brain4u is a group of professionals, who have pooled their expertise to provide holistic and practical solutions to companies in the functional domain of Finance and Accounts.” Source: RevenueBase Database · checked Sep 21, 2026
16	Cashcow Consulting PVT LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	16 contacts →
	Partial evidence “Cashcow Consulting Pvt Ltd is a leading provider of, outsourced CFO services and Financial consulting, based out of Mumbai.” Source: RevenueBase Database · checked Sep 21, 2026
17	Tremark Accounting PVT LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “Tremark Accounting Pvt Ltd is a leading provider of outsourced accounting services for small to mid-sized businesses across industry.” Source: RevenueBase Database · checked Sep 21, 2026
18	Synergasia Business Solutions	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “Synergasia Business Solutions is a young and innovative business solutions company.” Source: RevenueBase Database · checked Sep 21, 2026
19	Step UP Business Services PVT LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	13 contacts →
	Partial evidence “Step-Up Business Services Pvt Ltd is a Unique Business Process Outsourcing company offering Innovative, Cost effective and Process Oriented Solutions to our Customers.” Source: RevenueBase Database · checked Sep 21, 2026
20	Dexterous Solutions LTD	Strong evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	12 contacts →
	Strong evidence “Dexterous Solutions Ltd is a leading KPO focused on providing back-office solutions in the Accounting and HR domains.” Source: RevenueBase Database · checked Sep 21, 2026
21	Upgraft Corporation	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	1-10	10 contacts →
	Indirect evidence “Upgraft Corporation is a modern business solutions company built to help organizations scale efficiently by combining the strength of people, technology, and AI.” Source: RevenueBase Database · checked Sep 21, 2026
22	Treb Business Services	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “The company is based in Mumbai, India, and offers business process outsourcing.” Source: RevenueBase Database · checked Sep 21, 2026
23	Fatpos HUB	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	1-10	8 contacts →
	Indirect evidence “FATPOS” is a name derived from the services which we provide viz.” Source: RevenueBase Database · checked Sep 21, 2026
24	Viaante Business Solutions Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	501-1,000	5 contacts →
	Indirect evidence “Viaante completes 11 YEARS of Success!” Source: RevenueBase Database · checked Sep 21, 2026
25	Peoplequest Data Services Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “Established in 2019 and headquartered in Mumbai, PeopleQuest Data Services is a integrated business service provider in the field of HR Services, Data Management, Finance, and…” 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: outsourced back-office services firms. 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 outsourced back-office services firms.
Partial evidence: Its own public description names part of outsourced back-office services firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name outsourced back-office services firms. 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 140 outsourced back-office services firms based in Mumbai, India

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Outsourced back-office services firms based in Mumbai, India at a glance

As of Sep 21, 2026

7.7%Verified-email coverage

48.1Average contacts per company

11-50Median size (employees)

177.1%Largest-city concentration · Ahmedabad

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 140 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 outsourced back-office services firms, 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 “outsourced back-office services firms”. 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 outsourced back-office services firms), 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 outsourced back-office services firms, 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, 520 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.

Outsourced back-office services firms by metro in India

Outsourced back-office services firms in Ahmedabad248
Outsourced back-office services firms in New Delhi149
Outsourced back-office services firms in Mumbai140
Outsourced back-office services firms in Noida138
Outsourced back-office services firms in Bangalore130
Outsourced back-office services firms in Chennai111
Outsourced back-office services firms in Pune108
Outsourced back-office services firms in Hyderabad97
Outsourced back-office services firms in Kolkata85
Outsourced back-office services firms in Delhi78
Outsourced back-office services firms in Gurgaon61
Outsourced back-office services firms in Bengaluru59
Outsourced back-office services firms in Jaipur50
Outsourced back-office services firms in Gurugram46
Outsourced back-office services firms in Indore46
Outsourced back-office services firms in Udaipur45
Outsourced back-office services firms in Coimbatore38
Outsourced back-office services firms in Vadodara30
Outsourced back-office services firms in Mohali27
Outsourced back-office services firms in Thane26
Outsourced back-office services firms in Lucknow25
Outsourced back-office services firms in Navi Mumbai25

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 outsourced back-office services firms, 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 outsourced back-office services firms are there based in Mumbai, India?

RevenueBase identified 140 outsourced back-office services firms 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 outsourced back-office services firms?

Ahmedabad leads with 248 headquartered companies, followed by New Delhi (149) and Mumbai (140).

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 520 verified decision-maker contacts tracked across these 140 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.