Company lists · Data refreshed September 2026
Top 25 Outsourcing service providers based in Mumbai, India
RevenueBase identified 174 company matches for outsourcing service providers associated with Mumbai, India as of September 2026 and tracks 33,767 professional contacts across them, including 4,497 with verified work emails. Across India, Bangalore is the largest hub for this category (337 companies); Mumbai has 174.
This list covers company matches for outsourcing service providers associated with Mumbai, 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 September 21, 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.
The 25 largest outsourcing service providers based in Mumbai, India
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 17,257 contacts → | ||||
Exact match “Firstsource Solutions Limited, an RP-Sanjiv Goenka Group company, is a global intelligence partner to enterprises across healthcare, banking and financial services…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 1,757 contacts → | ||||
Exact match “Established in 2004, Capita India is part of Capita plc, the UK's No.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 1,466 contacts → | ||||
Exact match “We’re Tech Mahindra Business Process Services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 732 contacts → | ||||
Exact match “Altius is a leading provider of Information Technology and BPO (Business Process Outsourcing) Services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 686 contacts → | ||||
Exact match “We offer Business Process Services that are efficient, strategic, economical and deliver business outcomes beyond expectations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 332 contacts → | ||||
Exact match “Pegasus InfoCorp is a global leader in consulting, technology and outsourcing services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 257 contacts → | ||||
Exact match “Pinnacle Global provides outsourcing/offshoring services to businesses all around the globe.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 193 contacts → | ||||
Exact match “Altruist BPO is a leading global integrated solutions provider in Business Process Outsourcing, Customer Experience Management and IT Services with presence across India, Africa…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 163 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 · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 144 contacts → | ||||
Exact match “Advait Techserve India Pvt Ltd, established in 2004 and headquartered in Mumbai, specializes in crafting bespoke offshore remote office solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 83 contacts → | ||||
Exact match “Business Process Outsourcing” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 80 contacts → | ||||
Exact match “We founded Infinzi in 2017 with a vision to empower business owners to focus on strengthening the core competencies of their businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 79 contacts → | ||||
Exact match “ALFA KPO PRIVATE LIMITED is a company based out of 704, GOLDEN CHAMBERS, OPP.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 73 contacts → | ||||
Exact match “At Interspence, we offer cutting-edge solutions designed to give businesses a competitive edge by enhancing customer experiences, ensuring security, and boosting productivity.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 65 contacts → | ||||
Exact match “For All Your Knowledge Outsourcing Needs” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 55 contacts → | ||||
Exact match “Founded in 2005 Promoted by $2 Billion Multinational Business House Global provider of end-to-end solutions in the area of - Software services - Data & Voice based services -…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 51 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 50 contacts → | ||||
Exact match “Zedexinfo is one of the leading providers of technology services and end-to-end business process outsourcing solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 43 contacts → | ||||
Exact match “KontactGlobal is a present-day business & knowledge process outsourcing, education counselling and management consulting company that sees potential in every business and every…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 41 contacts → | ||||
Exact match “VonUp BPO is a provider of business process outsourcing services focusing on the voice and non-voice based segments.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 31 contacts → | ||||
Exact match “Spectrum is an innovative outsourcing business with a unique 100% work-from-home model.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 29 contacts → | ||||
Exact match “Ratein Infotech India Private Limited incorporated in the year August with its roots that can be traced to the turn of this century.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 28 contacts → | ||||
Exact match “MedDirect BPO - We provide BPO services with multi-lingual support!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 22 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 22 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “outsourcing service providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 174 outsourcing service providers based in Mumbai, India
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Outsourcing service providers based in Mumbai, India at a glance
As of Sep 21, 2026Companies by employee count
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 174 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 Mumbai, India whose business descriptions match “outsourcing service 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 4,497 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 September 21, 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.
Outsourcing service providers by metro in India
- Outsourcing service providers in Bangalore337
- Outsourcing service providers in Hyderabad228
- Outsourcing service providers in Noida215
- Outsourcing service providers in Pune190
- Outsourcing service providers in New Delhi182
- Outsourcing service providers in Chennai181
- Outsourcing service providers in Ahmedabad171
- Outsourcing service providers in Kolkata142
- Outsourcing service providers in Gurgaon129
- Outsourcing service providers in Delhi97
- Outsourcing service providers in Jaipur68
- Outsourcing service providers in Coimbatore60
- Outsourcing service providers in Udaipur52
- Outsourcing service providers in Navi Mumbai48
- Outsourcing service providers in Mohali46
- Outsourcing service providers in Lucknow45
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 “outsourcing service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many outsourcing service providers are there based in Mumbai, India?
RevenueBase identified 174 company matches for outsourcing service providers associated with Mumbai, India as of September 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?
Firstsource tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in India has the most outsourcing service providers?
Bangalore leads India with 337 company records, followed by Hyderabad (228) and Noida (215). Mumbai has 174.
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 4,497 professional contacts with verified work emails tracked across these 174 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 September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 174 outsourcing service providers based in Mumbai, India. Start with a free account, no credit card.
Download this list →Related lists
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- Outsourcing service providers based in Belo Horizonte, Brazil
- Outsourcing service providers based in Curitiba, Brazil
- Outsourcing service providers based in Rio De Janeiro, Brazil
- Outsourcing service providers based in Sao Paulo, Brazil
- Outsourcing service providers based in Ahmedabad, India
- Outsourcing service providers based in Bangalore, India
- Outsourcing service providers based in Chennai, India
- Outsourcing service providers based in Coimbatore, India
- Outsourcing service providers based in Delhi, India
- Outsourcing service providers based in Gurgaon, India
- Outsourcing service providers based in Hyderabad, India
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Outsourcing service providers based in Barueri, Brazil
- Outsourcing service providers based in Belo Horizonte, Brazil
- Outsourcing service providers based in Curitiba, Brazil
- Outsourcing service providers based in Rio De Janeiro, Brazil
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Company intelligence · public preview
Top 25 outsourcing service providers based in Mumbai, India
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 174 matching company records for outsourcing service providers based in Mumbai, India, with 33,767 tracked contacts and 4,497 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 outsourcing service providers based in Mumbai, India
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Firstsourcefirstsource.comHQ: Mumbai, IndiaReported employees: 10001+ | Mumbai, India | 10001+ | Exact match | 17,257 contacts → |
“Firstsource Solutions Limited, an RP-Sanjiv Goenka Group company, is a global intelligence partner to enterprises across healthcare, banking and financial services…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Capita Indiacapita.co.ukHQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 1,757 contacts → |
“Established in 2004, Capita India is part of Capita plc, the UK's No.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Tech Mahindra Business Process Servicesbps.techmahindra.comHQ: Mumbai, IndiaReported employees: 10001+ | Mumbai, India | 10001+ | Exact match | 1,466 contacts → |
“We’re Tech Mahindra Business Process Services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Altius Customer Services PVT LTDaltius.ccHQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 732 contacts → |
“Altius is a leading provider of Information Technology and BPO (Business Process Outsourcing) Services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Pace Setters Business Solutions Pvt.Ltdpacesetters.co.inHQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 686 contacts → |
“We offer Business Process Services that are efficient, strategic, economical and deliver business outcomes beyond expectations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Pegasus Infocorppegasusinfocorp.comHQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 332 contacts → |
“Pegasus InfoCorp is a global leader in consulting, technology and outsourcing services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Pinnacle Global Grouppinnacleglobalgroup.comHQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 257 contacts → |
“Pinnacle Global provides outsourcing/offshoring services to businesses all around the globe.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Altruist BPO Servicesaltruistindia.comHQ: Mumbai, IndiaReported employees: 10001+ | Mumbai, India | 10001+ | Exact match | 193 contacts → |
“Altruist BPO is a leading global integrated solutions provider in Business Process Outsourcing, Customer Experience Management and IT Services with presence across India, Africa…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Excel Infoways LTDexcel-infoways.comHQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 163 contacts → |
“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 description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Advait Techserveadvaittechserve.inHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 144 contacts → |
“Advait Techserve India Pvt Ltd, established in 2004 and headquartered in Mumbai, specializes in crafting bespoke offshore remote office solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Diallodiallo.co.inHQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 83 contacts → |
“Business Process Outsourcing” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Infinziinfinzi.inHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 80 contacts → |
“We founded Infinzi in 2017 with a vision to empower business owners to focus on strengthening the core competencies of their businesses.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Alfa KPO Private Limitedalfakpo.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 79 contacts → |
“ALFA KPO PRIVATE LIMITED is a company based out of 704, GOLDEN CHAMBERS, OPP.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Interspence Solutionsinterspence.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 73 contacts → |
“At Interspence, we offer cutting-edge solutions designed to give businesses a competitive edge by enhancing customer experiences, ensuring security, and boosting productivity.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Connections Direct India Private Limitedconnectionsdirect.inHQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 65 contacts → |
“For All Your Knowledge Outsourcing Needs” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  RB Onesourcerbonesource.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 55 contacts → |
“Founded in 2005 Promoted by $2 Billion Multinational Business House Global provider of end-to-end solutions in the area of - Software services - Data & Voice based services -…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Silverlinesilverlinetechnology.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 51 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Zedex Info Pvt. LTDzedexinfo.comHQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 50 contacts → |
“Zedexinfo is one of the leading providers of technology services and end-to-end business process outsourcing solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Kontact Globalkontactglobal.com HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 43 contacts → |
“KontactGlobal is a present-day business & knowledge process outsourcing, education counselling and management consulting company that sees potential in every business and every…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Vonup Solutions Private Limitedvonupbpo.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 41 contacts → |
“VonUp BPO is a provider of business process outsourcing services focusing on the voice and non-voice based segments.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Spectrum Consulting Servicesspectrumcservices.comHQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 31 contacts → |
“Spectrum is an innovative outsourcing business with a unique 100% work-from-home model.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Ratein Infotech India Pvt. LTDratein.inHQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 29 contacts → |
“Ratein Infotech India Private Limited incorporated in the year August with its roots that can be traced to the turn of this century.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Meddirect Services Private Limitedmeddirect.inHQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 28 contacts → |
“MedDirect BPO - We provide BPO services with multi-lingual support!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Support Direct Indiasupportdirectindia.comHQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 22 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sakash Groupsakashgroup.in HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 22 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 174 company matches
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Outsourcing service providers: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
174 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 174 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Outsourcing service providers by metro in India
- Outsourcing service providers in Bangalore337
- Outsourcing service providers in Hyderabad228
- Outsourcing service providers in Noida215
- Outsourcing service providers in Pune190
- Outsourcing service providers in New Delhi182
- Outsourcing service providers in Chennai181
- Outsourcing service providers in Ahmedabad171
- Outsourcing service providers in Kolkata142
- Outsourcing service providers in Gurgaon129
- Outsourcing service providers in Delhi97
- Outsourcing service providers in Jaipur68
- Outsourcing service providers in Coimbatore60
- Outsourcing service providers in Udaipur52
- Outsourcing service providers in Navi Mumbai48
- Outsourcing service providers in Mohali46
- Outsourcing service providers in Lucknow45
Questions about this company list
What does Exact match mean for outsourcing service providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many outsourcing service providers did RevenueBase find based in Mumbai, India?
The saved snapshot records 174 matching company records, 33,767 tracked contacts and 4,497 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Outsourcing service providers by geography
- Outsourcing service providers based in Barueri, Brazil
- Outsourcing service providers based in Belo Horizonte, Brazil
- Outsourcing service providers based in Curitiba, Brazil
- Outsourcing service providers based in Rio De Janeiro, Brazil
- Outsourcing service providers based in Sao Paulo, Brazil
- Outsourcing service providers based in Ahmedabad, India
- Outsourcing service providers based in Bangalore, India
- Outsourcing service providers based in Chennai, India
- Outsourcing service providers based in Coimbatore, India
- Outsourcing service providers based in Delhi, India
- Outsourcing service providers based in Gurgaon, India
- Outsourcing service providers based in Hyderabad, India
Cite this list
RevenueBase Data Team. Top 25 outsourcing service providers based in Mumbai, India. Snapshot: September 21, 2026. https://revenuebase.ai/companies/outsourcing-service-providers/india/mumbai.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Outsourcing service providers based in Barueri, Brazil
- Outsourcing service providers based in Belo Horizonte, Brazil
- Outsourcing service providers based in Curitiba, Brazil
- Outsourcing service providers based in Rio De Janeiro, Brazil
- Outsourcing service providers based in Sao Paulo, Brazil
- Outsourcing service providers based in Ahmedabad, India
Company intelligence · public preview
Top 25 outsourcing service providers based in Mumbai, India
RevenueBase records 174 matching company records for outsourcing service providers based in Mumbai, India, with 33,767 tracked contacts and 4,497 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 outsourcing service providers based in Mumbai, India
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Firstsourcefirstsource.com HQ: Mumbai, IndiaReported employees: 10001+ | Mumbai, India | 10001+ | Exact match | 17,257 contacts → |
“Firstsource Solutions Limited, an RP-Sanjiv Goenka Group company, is a global intelligence partner to enterprises across healthcare, banking and financial services…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Capita Indiacapita.co.uk HQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 1,757 contacts → |
“Established in 2004, Capita India is part of Capita plc, the UK's No.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Tech Mahindra Business Process Servicesbps.techmahindra.com HQ: Mumbai, IndiaReported employees: 10001+ | Mumbai, India | 10001+ | Exact match | 1,466 contacts → |
“We’re Tech Mahindra Business Process Services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Altius Customer Services PVT LTDaltius.cc HQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 732 contacts → |
“Altius is a leading provider of Information Technology and BPO (Business Process Outsourcing) Services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Pace Setters Business Solutions Pvt.Ltdpacesetters.co.in HQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 686 contacts → |
“We offer Business Process Services that are efficient, strategic, economical and deliver business outcomes beyond expectations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Pegasus Infocorppegasusinfocorp.com HQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 332 contacts → |
“Pegasus InfoCorp is a global leader in consulting, technology and outsourcing services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Pinnacle Global Grouppinnacleglobalgroup.com HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 257 contacts → |
“Pinnacle Global provides outsourcing/offshoring services to businesses all around the globe.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Altruist BPO Servicesaltruistindia.com HQ: Mumbai, IndiaReported employees: 10001+ | Mumbai, India | 10001+ | Exact match | 193 contacts → |
“Altruist BPO is a leading global integrated solutions provider in Business Process Outsourcing, Customer Experience Management and IT Services with presence across India, Africa…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Excel Infoways LTDexcel-infoways.com HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 163 contacts → |
“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 description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Advait Techserveadvaittechserve.in HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 144 contacts → |
“Advait Techserve India Pvt Ltd, established in 2004 and headquartered in Mumbai, specializes in crafting bespoke offshore remote office solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Diallodiallo.co.in HQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 83 contacts → |
“Business Process Outsourcing” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Infinziinfinzi.in HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 80 contacts → |
“We founded Infinzi in 2017 with a vision to empower business owners to focus on strengthening the core competencies of their businesses.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Alfa KPO Private Limitedalfakpo.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 79 contacts → |
“ALFA KPO PRIVATE LIMITED is a company based out of 704, GOLDEN CHAMBERS, OPP.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Interspence Solutionsinterspence.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 73 contacts → |
“At Interspence, we offer cutting-edge solutions designed to give businesses a competitive edge by enhancing customer experiences, ensuring security, and boosting productivity.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Connections Direct India Private Limitedconnectionsdirect.in HQ: Mumbai, IndiaReported employees: 501-1,000 | Mumbai, India | 501-1,000 | Exact match | 65 contacts → |
“For All Your Knowledge Outsourcing Needs” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | RB Onesourcerbonesource.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 55 contacts → |
“Founded in 2005 Promoted by $2 Billion Multinational Business House Global provider of end-to-end solutions in the area of - Software services - Data & Voice based services -…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Silverlinesilverlinetechnology.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 51 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Zedex Info Pvt. LTDzedexinfo.com HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 50 contacts → |
“Zedexinfo is one of the leading providers of technology services and end-to-end business process outsourcing solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Kontact Globalkontactglobal.com HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 43 contacts → |
“KontactGlobal is a present-day business & knowledge process outsourcing, education counselling and management consulting company that sees potential in every business and every…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Vonup Solutions Private Limitedvonupbpo.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 41 contacts → |
“VonUp BPO is a provider of business process outsourcing services focusing on the voice and non-voice based segments.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Spectrum Consulting Servicesspectrumcservices.com HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 31 contacts → |
“Spectrum is an innovative outsourcing business with a unique 100% work-from-home model.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Ratein Infotech India Pvt. LTDratein.in HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 29 contacts → |
“Ratein Infotech India Private Limited incorporated in the year August with its roots that can be traced to the turn of this century.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Meddirect Services Private Limitedmeddirect.in HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 28 contacts → |
“MedDirect BPO - We provide BPO services with multi-lingual support!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Support Direct Indiasupportdirectindia.com HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 22 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sakash Groupsakashgroup.in HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 22 contacts → |
“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…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 174 company matches
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Outsourcing service providers: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
174 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 174 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Outsourcing service providers by metro in India
- Outsourcing service providers in Bangalore337
- Outsourcing service providers in Hyderabad228
- Outsourcing service providers in Noida215
- Outsourcing service providers in Pune190
- Outsourcing service providers in New Delhi182
- Outsourcing service providers in Chennai181
- Outsourcing service providers in Ahmedabad171
- Outsourcing service providers in Kolkata142
- Outsourcing service providers in Gurgaon129
- Outsourcing service providers in Delhi97
- Outsourcing service providers in Jaipur68
- Outsourcing service providers in Coimbatore60
- Outsourcing service providers in Udaipur52
- Outsourcing service providers in Navi Mumbai48
- Outsourcing service providers in Mohali46
- Outsourcing service providers in Lucknow45
Questions about this company list
What does Exact match mean for outsourcing service providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many outsourcing service providers did RevenueBase find based in Mumbai, India?
The saved snapshot records 174 matching company records, 33,767 tracked contacts and 4,497 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 outsourcing service providers based in Mumbai, India. Snapshot: September 21, 2026. https://revenuebase.ai/companies/outsourcing-service-providers/india/mumbai.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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