Company lists · Data refreshed September 2026
Top 25 Bpo services based in Chennai, India
RevenueBase identified 161 bpo services headquartered in Chennai, India as of September 2026 and tracks 7,567 professional contacts across them, including 320 with verified work emails. Bangalore is the largest hub.
This list covers bpo services 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 bpo services based in Chennai, India
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,163 contacts → | ||||
Strong 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. | |||||
| 2 | 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. | |||||
| 3 | 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. | |||||
| 4 | 355 contacts → | ||||
Indirect evidence “We are certified Staffing & Placement organization associated with Various leading IT Companies - Providing placement services in both Temp and Direct hiring in IT.* 3 Branches -…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 169 contacts → | ||||
Indirect evidence “CMOAxis was created to transform the way organizations approach marketing by turning it into a structured, scalable, and outcome-driven process.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 154 contacts → | ||||
Indirect evidence “Gembrill Technologies India is a leading provider of Information Technology and enterprise wide software solutions with a talented project management team.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 140 contacts → | ||||
Indirect evidence “PANOBIZ The People Partner meets the staffing & sales force management needs of corporates, especially in the banking, financial services and insurance industry in India” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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. | |||||
| 9 | 64 contacts → | ||||
Strong evidence “Founded in 1998 and headquartered in Chennai, with a delivery center in Ooty, Quick Sort (India) Private Limited (QSI) is a trusted partner in business process outsourcing (BPO)…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 56 contacts → | ||||
Indirect evidence “OfficeFrameWork(OFW) is a Business Process Outsourcing Company specializing in Logistics Vertical with intense domain expertise and service delivery skills.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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. | |||||
| 12 | 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. | |||||
| 13 | 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. | |||||
| 14 | 24 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 24 contacts → | ||||
Indirect evidence “Experts IN Solutions has it Head Quarters and Delivery center in Chennai, TamilNadu, India.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 23 contacts → | ||||
Strong 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 → | ||||
Strong 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 → | ||||
Strong evidence “JIBS is a BPO & KPO company offering End to End Quality services powered by cutting-edge digital technologies, Expertise across industry verticals and a robust digital footprint…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 20 contacts → | ||||
Strong 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. | |||||
| 21 | 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. | |||||
| 22 | 14 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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. | |||||
| 24 | 11 contacts → | ||||
Indirect evidence 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: bpo services. 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 bpo services.
- Partial evidence
- Its own public description names part of bpo services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name bpo services. 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 161 bpo services based in Chennai, India
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Bpo services 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 161 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 bpo services, 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 “bpo services”. 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 bpo services), 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 bpo services, 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, 320 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.
Bpo services by metro in India
- Bpo services in Bangalore223
- Bpo services in Noida221
- Bpo services in New Delhi205
- Bpo services in Pune200
- Bpo services in Ahmedabad197
- Bpo services in Mumbai191
- Bpo services in Hyderabad184
- Bpo services in Chennai161
- Bpo services in Kolkata159
- Bpo services in Delhi95
- Bpo services in Bengaluru94
- Bpo services in Gurgaon70
- Bpo services in Jaipur62
- Bpo services in Indore60
- Bpo services in Coimbatore56
- Bpo services in Gurugram54
- Bpo services in Mohali51
- Bpo services in Udaipur51
- Bpo services in Navi Mumbai48
- Bpo services in Lucknow47
- Bpo services in Thane35
- Bpo services in Vadodara27
- Bpo services in Bhopal25
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 bpo services, 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 bpo services are there based in Chennai, India?
RevenueBase identified 161 bpo services 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?
ENOAH, headquartered in Chennai, tops this list with the largest team on record.
Which city has the most bpo services?
Bangalore leads with 223 headquartered companies, followed by Noida (221) and New Delhi (205).
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 320 verified decision-maker contacts tracked across these 161 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.
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