Company lists · Data refreshed September 2026

Top 25 Business process outsourcing service providers based in Chennai, India

Name: Business process outsourcing service providers based in Chennai, India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 154 companies tracked

RevenueBase identified 154 business process outsourcing service providers headquartered in Chennai, India as of September 2026 and tracks 7,717 professional contacts across them, including 250 with verified work emails. Ahmedabad is the largest hub.

This list covers business process outsourcing service providers 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 14, 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 14, 2026 86% judged on-target in blind review

154Companies

7,717Contacts tracked

250Verified emails

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The 25 largest business process outsourcing service providers based in Chennai, India

Ranked by team size

Top 25 of 154 business process outsourcing service providers based in Chennai, India, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to business process outsourcing service providers: 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	ENOAH	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
2	Imarque Solutions Pvt. LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	1,001-5,000	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 14, 2026
3	Cameo Corporate Services	Strong evidence	Chennai, IndiaHQ checked Sep 14, 2026	201-500	527 contacts →
	Strong evidence “Cameo Corporate Services Limited is a Business Process Outsourcing firm headquartered in Chennai, India.” Source: RevenueBase Database · checked Sep 14, 2026
4	Trayee Business Solutions PVT LTD	Partial evidence	Chennai, IndiaHQ checked Sep 14, 2026	1,001-5,000	289 contacts →
	Partial evidence “Trayee is in the Business of Process Acceleration specializing in Banking & Financial Services and Insurance verticals.” Source: RevenueBase Database · checked Sep 14, 2026
5	Officeframework Operations Center PVT LTD	Strong evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	56 contacts →
	Strong 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 14, 2026
6	Antontech	Partial evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	43 contacts →
	Partial 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 14, 2026
7	Cogzidel Consultancy Services P LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	11-50	42 contacts →
	Indirect evidence “Cogzidel Consultancy Services Pvt Ltd is a company incorporated under the Companies Act, 1956.” Source: RevenueBase Database · checked Sep 14, 2026
8	Alphentrix Global Services Private Limited	Partial evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	33 contacts →
	Partial evidence “Alphentrix is a Resilient Business Process Management Company Synergized with the latest Technology and Skilled expertise in the Domain of BFSI, Telecom & Media, Retail & E…” Source: RevenueBase Database · checked Sep 14, 2026
9	Interpro Global	Strong evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	31 contacts →
	Strong evidence “InterPro Global is a leader in SmartSourcing offering Business Process Outsourcing and Offshoring services to companies.” Source: RevenueBase Database · checked Sep 14, 2026
10	Avighna Systems Private Limited	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	11-50	24 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
11	Experts In Solutions Pvt. LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	11-50	24 contacts →
	Indirect evidence “Experts IN Solutions has it Head Quarters and Delivery center in Chennai, TamilNadu, India.” Source: RevenueBase Database · checked Sep 14, 2026
12	India Intellisys Technology Private Limited	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	23 contacts →
	Indirect evidence “INDIA INTELLISYS TECHNOLOGY PRIVATE LIMITED is an iT and BPO company.” Source: RevenueBase Database · checked Sep 14, 2026
13	Sundaram Business Service LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	11-50	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 14, 2026
14	42andmore	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	11-50	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 14, 2026
15	Jibsbpo	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	20 contacts →
	Indirect 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 14, 2026
16	Altech Star BPO Pvt. LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	201-500	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 14, 2026
17	Caftius Technologies Private Limited	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	17 contacts →
	Indirect evidence “We specialize in helping customers build and support their products by exclusive Offshore Teams.” Source: RevenueBase Database · checked Sep 14, 2026
18	Cognet HR Solution Private Limited	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
19	Phoenix Business Initiatives Pvt. LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	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 14, 2026
20	Ibits Technology Solutions	Strong evidence	Chennai, IndiaHQ checked Sep 14, 2026	11-50	11 contacts →
	Strong evidence “IBITS is a leading provider of dedicated IT Infrastructure Management and Business Process Outsourcing solutions.” Source: RevenueBase Database · checked Sep 14, 2026
21	Danish Business Services PVT LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	11-50	6 contacts →
	Indirect evidence “An Office away from your Office" is the concept based on which Danish Business Services Private Limited has been established in Chennai, India for catering to the needs of global…” Source: RevenueBase Database · checked Sep 14, 2026
22	YEO	Partial evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	5 contacts →
	Partial evidence “YEO - Your Extended Office is an outsourcing company for PEO/ASO/HRO/Staffing Companies exclusively in the US helping to reduce 55% of the operational cost by taking care of all…” Source: RevenueBase Database · checked Sep 14, 2026
23	Zenith Alliance	Partial evidence	Chennai, IndiaHQ checked Sep 14, 2026	1-10	3 contacts →
	Partial evidence “Zenith Alliance is one of the leading HR outsourcing companies based in Chennai.” Source: RevenueBase Database · checked Sep 14, 2026
24	Prismer Business Solutions Private Limited	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	51-200	2 contacts →
	Indirect evidence “Founded by the corporate leaders from the Fortune 500 with a collective experience of over 100+ years in leading global business management and transformation across geographies…” Source: RevenueBase Database · checked Sep 14, 2026
25	APT HR Solutions - India	Indirect evidence	Chennai, IndiaHQ checked Sep 14, 2026	11-50	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 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: business process outsourcing service providers. 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 business process outsourcing service providers.
Partial evidence: Its own public description names part of business process outsourcing service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business process outsourcing service providers. 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 154 business process outsourcing service providers based in Chennai, India

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Business process outsourcing service providers based in Chennai, India at a glance

As of Sep 14, 2026

3.2%Verified-email coverage

50.1Average contacts per company

11-50Median size (employees)

132.5%Largest-city concentration · Ahmedabad

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 154 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 business process outsourcing service providers, 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 “business process outsourcing service providers”. 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 business process outsourcing service providers), 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 business process outsourcing service providers, 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, 250 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 14, 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.

Business process outsourcing service providers by metro in India

Business process outsourcing service providers in Ahmedabad204
Business process outsourcing service providers in Bangalore191
Business process outsourcing service providers in Noida185
Business process outsourcing service providers in New Delhi184
Business process outsourcing service providers in Pune166
Business process outsourcing service providers in Mumbai163
Business process outsourcing service providers in Chennai154
Business process outsourcing service providers in Hyderabad141
Business process outsourcing service providers in Kolkata129
Business process outsourcing service providers in Bengaluru94
Business process outsourcing service providers in Delhi87
Business process outsourcing service providers in Gurgaon68
Business process outsourcing service providers in Jaipur57
Business process outsourcing service providers in Coimbatore54
Business process outsourcing service providers in Udaipur49
Business process outsourcing service providers in Gurugram47
Business process outsourcing service providers in Indore46
Business process outsourcing service providers in Navi Mumbai45
Business process outsourcing service providers in Lucknow40
Business process outsourcing service providers in Mohali39
Business process outsourcing service providers in Vadodara33
Business process outsourcing service providers in Thane31

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 business process outsourcing service providers, 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 business process outsourcing service providers are there based in Chennai, India?

RevenueBase identified 154 business process outsourcing service providers 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 business process outsourcing service providers?

Ahmedabad leads with 204 headquartered companies, followed by Bangalore (191) and Noida (185).

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 250 verified decision-maker contacts tracked across these 154 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 14, 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.