Company lists · Data refreshed September 2026

Top 25 Professional outsourcing services based in India

RevenueBase identified 2,198 professional outsourcing services headquartered in India as of September 2026 and tracks 71,518 professional contacts across them, including 3,613 with verified work emails. Ahmedabad is the largest hub.

This list covers professional outsourcing services headquartered in India, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
2,198Companies
71,518Contacts tracked
3,613Verified emails
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The 25 largest professional outsourcing services based in India

Ranked by team size
Top 25 of 2,198 professional outsourcing services based in India, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to professional outsourcing services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNoida, IndiaHQ checked Sep 21, 202610001+14,745 contacts →

Partial evidence

“iEnergizer is a leading Business Process Outsourcing provider (“BPO”) of customer management solutions dedicated to delivering performance while actively supporting and advocating…”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceMumbai, IndiaHQ checked Sep 21, 20265,001-10,0001,757 contacts →

Indirect evidence

“Established in 2004, Capita India is part of Capita plc, the UK's No.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceNavi Mumbai, IndiaHQ checked Sep 21, 202610001+1,725 contacts →

Indirect evidence

“Calibehr is a strategic business solutions provider company that offers end-to-end solutions to organizations for sustainable growth.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceNoida, IndiaHQ checked Sep 21, 20261,001-5,0001,202 contacts →

Partial evidence

“ICCS, a Business Process Outsourcing company, proposes to assist your setup by not only executing the typical outsourced BPO services, but by committing to provide the essential…”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceNew Delhi, IndiaHQ checked Sep 21, 20261,001-5,0001,166 contacts →

Indirect evidence

“JindalX, part of OP Jindal Group, is a global service company creating success stories for over 20 years.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceBangalore, IndiaHQ checked Sep 21, 20261,001-5,000995 contacts →

Indirect evidence

“At Invensis, we solve business inefficiencies.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceChennai, IndiaHQ checked Sep 21, 20261,001-5,000879 contacts →

Partial 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, 2026
8Indirect evidenceAhmedabad, IndiaHQ checked Sep 21, 20261,001-5,000810 contacts →

Indirect evidence

“Established in 2008, Pacific was formed to serve the clients with the best services in the field of outsourced accounting.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceLucknow, IndiaHQ checked Sep 21, 2026501-1,000749 contacts →

Indirect evidence

“Niftel Communications is successfully running BPO operations with over seats worldwide, since 2010.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceDehra Dun, IndiaHQ checked Sep 21, 20261,001-5,000742 contacts →

Indirect evidence

“ILeads is one of the fastest growing and leading BPO/KPO/ITES industry based companies in the Dehradun region.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceDelhi, IndiaHQ checked Sep 21, 20261,001-5,000636 contacts →

Partial evidence

“Konexions Backoffice Services Pvt Ltd is a premium outsourcing company with its registered office at I-16, Lajpat Nagar-2, New Delhi-110024.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidencePune, IndiaHQ checked Sep 21, 20261,001-5,000600 contacts →

Indirect evidence

“Our services are credible and scalable Our Key Services Include-Customer service management -Data & business analytics -Sales & marketing -Supply chain services -Accounts payable…”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceCoimbatore, IndiaHQ checked Sep 21, 20261,001-5,000596 contacts →

Partial evidence

“RND Softech Private Limited, founded in is a leading Business Process Outsourcing organization that envisioned and pioneered the adoption of the flexible global business practices…”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceNavi Mumbai, IndiaHQ checked Sep 21, 20265,001-10,000565 contacts →

Indirect evidence

“ITCube has now merged with 1Point1 Solutions to create a powerhouse of innovation and customer experience.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceBangalore, IndiaHQ checked Sep 21, 2026201-500557 contacts →

Indirect evidence

“Brickwork India, a Women-owned Business Enterprise (WBE) and an ISO 27001: 2022 certified company, is the pioneer and leader in the Global Business Support Services.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceHyderabad, IndiaHQ checked Sep 21, 2026501-1,000531 contacts →

Indirect evidence

“We build Global Capability Centers (GCCs) that help companies scale operations 3–4X.”

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidenceHyderabad, IndiaHQ checked Sep 21, 2026501-1,000523 contacts →

Partial evidence

“DeltaTech is a globally based outsourcing firm, catering to various technology & BPO needs.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceMohali, IndiaHQ checked Sep 21, 2026201-500415 contacts →

Indirect evidence

“Escalon’s one stop shop approach gives you a single touch point for everything you need to keep your company safe.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceDelhi, IndiaHQ checked Sep 21, 2026n/a411 contacts →

Indirect evidence

“Who We Are?”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceNoida, IndiaHQ checked Sep 21, 20261,001-5,000377 contacts →

Indirect evidence

“Nimbus BPO is open for small business to large business houses.”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceBangalore, IndiaHQ checked Sep 21, 20261,001-5,000340 contacts →

Partial evidence

“We specialize in end-to-end outsourcing across all industries and functions, including: Customer Support & Call Center Inbound/outbound call handling, technical support, live…”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceAhmedabad, IndiaHQ checked Sep 21, 2026201-500311 contacts →

Partial evidence

“For over a decade, Technomine has been delivering reliable outsourcing solutions to clients across North America, Europe, and the Middle East.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceVillupuram, IndiaHQ checked Sep 21, 2026501-1,000306 contacts →

Indirect evidence

“Deccan iServices Pvt.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceMumbai, IndiaHQ checked Sep 21, 2026501-1,000298 contacts →

Indirect evidence

“Viaante was conceived with the sole intent of providing complete end to end solutions for administrative services to Healthcare, Insurance, Pharma and Law firms; in addition to…”

Source: RevenueBase Database · checked Sep 21, 2026
25Strong evidenceCalicut, IndiaHQ checked Sep 21, 2026201-500294 contacts →

Strong evidence

“Founded in 2007, Buchprufer Consultants has grown into a trusted and reputed outsourcing partner delivering high-quality financial and professional services.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 2,198 professional outsourcing services based in India

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Professional outsourcing services based in India at a glance

As of Sep 21, 2026
5.1%Verified-email coverage
32.5Average contacts per company
11-50Median size (employees)
7.0%Largest-city concentration · Ahmedabad
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
624
11-50
890
51-200
417
201-500
140
501-1,000
50
1,001-5,000
62
5,001-10,000
7
10001+
4

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 2,198 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 professional outsourcing 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 India whose own description of what they do matches “professional outsourcing 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 professional outsourcing 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 professional outsourcing services, and records with no verified work email. Companies headquartered outside India 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, 3,613 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.

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 professional outsourcing 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 professional outsourcing services are there based in India?

RevenueBase identified 2,198 professional outsourcing services headquartered in 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?

Ienergizer, headquartered in Noida, tops this list with the largest team on record.

Which city has the most professional outsourcing services?

Ahmedabad leads with 154 headquartered companies, followed by Bangalore (136) and New Delhi (129).

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 3,613 verified decision-maker contacts tracked across these 2,198 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.