Company lists · Data refreshed September 2026
Top 25 Out sourcing companies based in Chennai, India
RevenueBase identified 186 out sourcing companies headquartered in Chennai, India as of September 2026 and tracks 12,972 professional contacts across them, including 1,347 with verified work emails. Bangalore is the largest hub.
This list covers out sourcing companies headquartered in Chennai, 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.
The 25 largest out sourcing companies based in Chennai, India
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,953 contacts → | ||||
Indirect evidence “Aspire Systems is a global technology services firm serving as a trusted technology partner for our customers.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,163 contacts → | ||||
Indirect evidence “eNoah is a boutique consulting-led integrated BPO and IT solutions company providing services to Fortune companies in the Integrated Health, Insurance, Manufacturing and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 879 contacts → | ||||
Indirect evidence “Started operation on 2004 with 25 employees, Currently iMarque has grown into a powerhouse of over professionals today, consistently achieving an impressive 40% average annual…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 527 contacts → | ||||
Indirect evidence “Cameo Corporate Services Limited is a Business Process Outsourcing firm headquartered in Chennai, India.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 88 contacts → | ||||
Indirect evidence “iV Support Technologies emerged from the aspirations of a group of industry enthusiasts to provide efficient and effective business solutions to clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 84 contacts → | ||||
Indirect evidence “Avon Global Solutions Private Limited was established in 2003 with its corporate office in Chennai.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 74 contacts → | ||||
Indirect evidence “DPI is a premier marketing research outsourcing company with state-of-the-art in-house resources, experienced and dedicated staff and advanced analytical capabilities that can…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 52 contacts → | ||||
Indirect evidence “Infinire is a growing outsourcing IT service provider based in Chennai, India.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 43 contacts → | ||||
Indirect evidence “Antontech was founded with the vision to support the demanding organization needs of managing enterprise data and business process while our clients can focus on strategic…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 31 contacts → | ||||
Indirect evidence “InterPro Global is a leader in SmartSourcing offering Business Process Outsourcing and Offshoring services to companies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 28 contacts → | ||||
Indirect evidence “Enterstellar Softwares Private Limited is a multi-faceted global IT company providing market strategies, systems and app development and integration, and business process…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 27 contacts → | ||||
Indirect evidence “A privately owned KPO Company, formed in the year 2004, providing offshore services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 27 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 26 contacts → | ||||
Indirect evidence “At JIT Global, we empower organizations to accelerate their digital transformation through innovative Cloud, AI, Data Engineering, Cybersecurity, and Enterprise Technology…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 24 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 23 contacts → | ||||
Indirect evidence “INDIA INTELLISYS TECHNOLOGY PRIVATE LIMITED is an iT and BPO company.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 22 contacts → | ||||
Indirect evidence “Sundaram Business Services provides BPO back office services for customer lifecycle management, accounts payable, payroll, lending and insurance companies in addition to the call…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 22 contacts → | ||||
Indirect evidence “What We Do: At 42andmore, we help businesses accelerate their growth by helping them outsource - Marketing & video content production - CRM software & Cloud telephony solutions -…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 20 contacts → | ||||
Indirect evidence “Incorporated in October 2006 as a wholly owned subsidiary of ETA –Ascon Group, Altech Star BPO (Altech) offers complete suite of BPO services of voice and non –voice.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 19 contacts → | ||||
Indirect evidence “BLITZSCALE is a global technology services and outsourcing company that provides application development, enterprise solutions and infrastructure services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 19 contacts → | ||||
Indirect evidence “QuipServe is a global management technology services and outsourcing company.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 17 contacts → | ||||
Indirect evidence “We specialize in helping customers build and support their products by exclusive Offshore Teams.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 14 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Indirect evidence “Phoenix Business Initiatives (PBI) is a young and vibrant company that aims to provide high quality services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 11 contacts → | ||||
Indirect evidence “Afxisi is a client focused company in Web Services, VoIP Services, IT Services & Outsourcing, we thrive at understanding the strategic needs of our clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: out sourcing 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 out sourcing companies.
- Partial evidence
- Its own public description names part of out sourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name out sourcing 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 186 out sourcing companies based in Chennai, India
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,347 reachable decision-makers.
Free signup · no credit card
Out sourcing companies based in Chennai, 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 Chennai, so it is reported there. Company counts and contact totals on this page are exact for Chennai, over 186 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 out sourcing 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 Chennai, India whose own description of what they do matches “out sourcing 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 out sourcing 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 out sourcing companies, and records with no verified work email. Companies headquartered outside Chennai 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, 1,347 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.
Out sourcing companies by metro in India
- Out sourcing companies in Bangalore233
- Out sourcing companies in Noida225
- Out sourcing companies in Hyderabad223
- Out sourcing companies in New Delhi211
- Out sourcing companies in Pune195
- Out sourcing companies in Ahmedabad187
- Out sourcing companies in Chennai186
- Out sourcing companies in Mumbai181
- Out sourcing companies in Kolkata145
- Out sourcing companies in Bengaluru108
- Out sourcing companies in Delhi91
- Out sourcing companies in Gurgaon77
- Out sourcing companies in Indore64
- Out sourcing companies in Jaipur64
- Out sourcing companies in Coimbatore56
- Out sourcing companies in Gurugram56
- Out sourcing companies in Navi Mumbai48
- Out sourcing companies in Udaipur46
- Out sourcing companies in Lucknow45
- Out sourcing companies in Mohali41
- Out sourcing companies in Vadodara37
- Out sourcing companies in Thane33
- Out sourcing companies in Surat30
- Out sourcing companies in Bhopal25
- Out sourcing companies in Nagpur25
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 out sourcing 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 out sourcing companies are there based in Chennai, India?
RevenueBase identified 186 out sourcing companies headquartered in Chennai, 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?
Aspire Systems, headquartered in Chennai, tops this list with the largest team on record.
Which city has the most out sourcing companies?
Bangalore leads with 233 headquartered companies, followed by Noida (225) and Hyderabad (223).
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 1,347 verified decision-maker contacts tracked across these 186 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.
Ready to reach these companies? Verified emails and direct dials for all 186 out sourcing companies based in Chennai, India. Start with a free account, no credit card.
Download this list →Related lists
Out sourcing companies by geography
- Out sourcing companies based in Barueri, Brazil
- Out sourcing companies based in Curitiba, Brazil
- Out sourcing companies based in Rio De Janeiro, Brazil
- Out sourcing companies based in Sao Paulo, Brazil
- Out sourcing companies based in Ahmedabad, India
- Out sourcing companies based in Bangalore, India
- Out sourcing companies based in Bengaluru, India
- Out sourcing companies based in Coimbatore, India
- Out sourcing companies based in Delhi, India
- Out sourcing companies based in Gurgaon, India
- Out sourcing companies based in Gurugram, India
- Out sourcing companies 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 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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Out sourcing companies based in Barueri, Brazil
- Out sourcing companies based in Curitiba, Brazil
- Out sourcing companies based in Rio De Janeiro, Brazil
- Out sourcing companies based in Sao Paulo, Brazil
- Out sourcing companies based in Ahmedabad, India
- Out sourcing companies based in Bangalore, India