Company lists · Data refreshed September 2026

Top 25 Outsource back office services based in India

Name: Outsource back office services based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,480 companies tracked

RevenueBase identified 1,480 outsource back office services headquartered in India as of September 2026 and tracks 45,567 professional contacts across them, including 3,055 with verified work emails. Ahmedabad is the largest hub.

This list covers outsource back office 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

1,480Companies

45,567Contacts tracked

3,055Verified emails

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The 25 largest outsource back office services based in India

Ranked by team size

Top 25 of 1,480 outsource back office 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 outsource back office 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Arcgate	Partial evidence	Udaipur, IndiaHQ checked Sep 21, 2026	1,001-5,000	4,122 contacts →
	Partial evidence “We are a fast-growing BPO & IT outsourcing firm with a team of 2500+ people passionate about data and technology.” Source: RevenueBase Database · checked Sep 21, 2026
2	EXO Edge	Partial evidence	Mohali, IndiaHQ checked Sep 21, 2026	501-1,000	1,008 contacts →
	Partial evidence “Workforce Scalability and Business Process Outsourcing services that help our Real Estate clients achieve superior quality, efficiency, and profitability.” Source: RevenueBase Database · checked Sep 21, 2026
3	Invensis	Indirect evidence	Bangalore, IndiaHQ checked Sep 21, 2026	1,001-5,000	995 contacts →
	Indirect evidence “At Invensis, we solve business inefficiencies.” Source: RevenueBase Database · checked Sep 21, 2026
4	Imarque Solutions Pvt. LTD	Indirect evidence	Chennai, IndiaHQ checked Sep 21, 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 21, 2026
5	Confiance Business Solutions INC	Strong evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	1,001-5,000	857 contacts →
	Strong evidence “Confiance specializes in providing highly personalized business solutions in the areas of bookkeeping and accounting, financial planning, financial advisory, back office and…” Source: RevenueBase Database · checked Sep 21, 2026
6	Ileads Auxiliary Services PVT LTD	Indirect evidence	Dehra Dun, IndiaHQ checked Sep 21, 2026	1,001-5,000	742 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
7	Konexions Backoffice Services PVT LTD	Strong evidence	Delhi, IndiaHQ checked Sep 21, 2026	1,001-5,000	636 contacts →
	Strong 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
8	RND Softech	Partial evidence	Coimbatore, IndiaHQ checked Sep 21, 2026	1,001-5,000	596 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
9	Finacplus	Indirect evidence	Hyderabad, IndiaHQ checked Sep 21, 2026	501-1,000	531 contacts →
	Indirect evidence “We build Global Capability Centers (GCCs) that help companies scale operations 3–4X.” Source: RevenueBase Database · checked Sep 21, 2026
10	Cameo Corporate Services	Partial evidence	Chennai, IndiaHQ checked Sep 21, 2026	201-500	527 contacts →
	Partial evidence “Cameo Corporate Services Limited is a Business Process Outsourcing firm headquartered in Chennai, India.” Source: RevenueBase Database · checked Sep 21, 2026
11	Escalon Business Services, India	Indirect evidence	Mohali, IndiaHQ checked Sep 21, 2026	201-500	415 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
12	Tranistics Data Technologies Pvt. LTD	Indirect evidence	Kolkata, IndiaHQ checked Sep 21, 2026	501-1,000	398 contacts →
	Indirect evidence “Tranistics Data Technologies Pvt.” Source: RevenueBase Database · checked Sep 21, 2026
13	Nimbus BPO Limited	Indirect evidence	Noida, IndiaHQ checked Sep 21, 2026	1,001-5,000	377 contacts →
	Indirect evidence “Nimbus BPO is open for small business to large business houses.” Source: RevenueBase Database · checked Sep 21, 2026
14	Transact Global	Partial evidence	Bangalore, IndiaHQ checked Sep 21, 2026	1,001-5,000	340 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
15	Technomine	Partial evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	201-500	311 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
16	Anion Healthcare Services	Strong evidence	Hyderabad, IndiaHQ checked Sep 21, 2026	501-1,000	309 contacts →
	Strong evidence “Anion is an ISO 27001:2013 and HIPAA compliant organization operating in the field of Healthcare Services, providing Back Office data processing (BPO) for Providers/Physicians…” Source: RevenueBase Database · checked Sep 21, 2026
17	Buchprufer Consultants LLP	Partial evidence	Calicut, IndiaHQ checked Sep 21, 2026	201-500	294 contacts →
	Partial 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
18	Nseg Pvt. LTD	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	201-500	284 contacts →
	Indirect evidence “The Home for Your Dream Job” Source: RevenueBase Database · checked Sep 21, 2026
19	APT	Partial evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	201-500	279 contacts →
	Partial evidence “Established in 2009, APT is a premier consultancy specializing in outsourcing and offshoring, with a keen focus on Australia's vibrant SME landscape.” Source: RevenueBase Database · checked Sep 21, 2026
20	Pinnacle Global Group	Partial evidence	Mumbai, IndiaHQ checked Sep 21, 2026	201-500	257 contacts →
	Partial evidence “Pinnacle Global provides outsourcing/offshoring services to businesses all around the globe.” Source: RevenueBase Database · checked Sep 21, 2026
21	Value RCM Solutions Pvt. LTD	Partial evidence	Kolkata, IndiaHQ checked Sep 21, 2026	201-500	247 contacts →
	Partial evidence “Value RCM Solutions is a leading provider of comprehensive outsourcing solutions tailored to the healthcare industry (Medical Billing Companies, Hospitals, Ambulatory Surgical…” Source: RevenueBase Database · checked Sep 21, 2026
22	Astra Business Services Pvt. LTD	Indirect evidence	Noida, IndiaHQ checked Sep 21, 2026	201-500	242 contacts →
	Indirect evidence “AstraGlobal is a premier business process transformation company with an unwavering commitment to excellence, compliance, and innovation.” Source: RevenueBase Database · checked Sep 21, 2026
23	Unire Business Solutions Pvt. LTD	Partial evidence	Jaipur, IndiaHQ checked Sep 21, 2026	201-500	239 contacts →
	Partial evidence “UNIRE is a Business Process Outsourcing Company and offers a combination of operational excellence and expertise in different areas.” Source: RevenueBase Database · checked Sep 21, 2026
24	Elmer Technologies LLP	Partial evidence	Hyderabad, IndiaHQ checked Sep 21, 2026	201-500	230 contacts →
	Partial evidence “Elmer Technologies LLP is an offshore service provider for various outsourcing processes & projects across all sectors of industry.” Source: RevenueBase Database · checked Sep 21, 2026
25	IMS Decimal	Strong evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	201-500	218 contacts →
	Strong evidence “IMS Decimal - Your Offshore Accounting and Financial Back-office Services Provider.” Source: RevenueBase Database · checked Sep 21, 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: outsource back office 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 outsource back office services.
Partial evidence: Its own public description names part of outsource back office services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name outsource back office 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 1,480 outsource back office services based in India

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Outsource back office services based in India at a glance

As of Sep 21, 2026

6.7%Verified-email coverage

30.8Average contacts per company

11-50Median size (employees)

9.7%Largest-city concentration · Ahmedabad

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

358

11-50

606

51-200

334

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,480 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 outsource back office 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 “outsource back office 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 outsource back office 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 outsource back office 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, 3,055 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.

Outsource back office services by metro

Outsource back office services in Ahmedabad143
Outsource back office services in New Delhi86
Outsource back office services in Bangalore75
Outsource back office services in Noida74
Outsource back office services in Mumbai73
Outsource back office services in Chennai64
Outsource back office services in Pune55
Outsource back office services in Hyderabad53
Outsource back office services in Kolkata43
Outsource back office services in Delhi41
Outsource back office services in Gurgaon32
Outsource back office services in Udaipur32
Outsource back office services in Indore31
Outsource back office services in Jaipur31
Outsource back office services in Gurugram28
Outsource back office services in Bengaluru27
Outsource back office services in Coimbatore26

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 outsource back office 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 outsource back office services are there based in India?

RevenueBase identified 1,480 outsource back office 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?

Arcgate, headquartered in Udaipur, tops this list with the largest team on record.

Which city has the most outsource back office services?

Ahmedabad leads with 143 headquartered companies, followed by New Delhi (86) and Bangalore (75).

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 3,055 verified decision-maker contacts tracked across these 1,480 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.