Company lists · Data refreshed September 2026
Top 25 Billing and invoicing outsourcing companies based in India
RevenueBase identified 523 billing and invoicing outsourcing companies headquartered in India as of September 2026 and tracks 10,096 professional contacts across them, including 723 with verified work emails. Ahmedabad is the largest hub.
This list covers billing and invoicing outsourcing companies 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 27, 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 billing and invoicing outsourcing companies based in India
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 645 contacts → | ||||
Partial evidence “e-care India is one of the leading medical billing companies in India that provides a wide range of services to medical billing companies, Physicians, and Healthcare facilities in…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 527 contacts → | ||||
Partial evidence “Cameo Corporate Services Limited is a Business Process Outsourcing firm headquartered in Chennai, India.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 309 contacts → | ||||
Indirect 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 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 290 contacts → | ||||
Indirect evidence “Healthcare organizations need efficient practice management tools to streamline medical practices and improve revenue generation.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 247 contacts → | ||||
Strong 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 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 238 contacts → | ||||
Indirect evidence “Isys Softech BPO for Revenue Cycle Management and Health Information Process Streamlining.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 186 contacts → | ||||
Partial evidence “Task Source is a rapidly growing Business Process Outsourcing company in Indore, delivering Back Office support, IT Support, Website Development, Digital Marketing, Data Entry…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 154 contacts → | ||||
Partial evidence “MegaaOpes Solutions provides clients with successful business process outsourcing (BPO) solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 99 contacts → | ||||
Indirect evidence “Onzestt Service India Private Limited is a leading IT-BPO service provider has been empowering clients around the world to achieve business transformation and growth through its…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 98 contacts → | ||||
Indirect evidence “We add value to CFO’s and Accounts Team by solving following problems and more through our value added services: Subjectivity (or favoritism) in transaction processing Delay in…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 96 contacts → | ||||
Indirect evidence “VNC Global is a leading offshore bookkeeping solutions provider supporting businesses across the Globe.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 96 contacts → | ||||
Indirect evidence “RUSAN MEDISYS PRIVATE LIMITED is a company based out of 405 RAHEJA CENTRE 214 FREE PRESS GENERAL MARG NARIMAN POINT, MUMBAI, Maharashtra, India.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 96 contacts → | ||||
Partial evidence “SIGMA Outsourcing Services Private Limited is a dominant player in outsourcing domestic Business Process Services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 92 contacts → | ||||
Indirect evidence “TaurusQuest is a provider of outsourced services in financial accounting/analysis, legal services and other back office processes.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 85 contacts → | ||||
Partial evidence “Welco Infotech is an offshore business process outsourcing (BPO) company in India provides highly effective, time bound and value for money outsourcing services through our…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 81 contacts → | ||||
Indirect evidence “MedTermRCM is purely into Healthcare Revenue Cycle Management business based in Rajasthan state of India.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 72 contacts → | ||||
Indirect evidence “Logo Infosoft helps organizations improve their core operations through innovative use of technology.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 70 contacts → | ||||
Partial evidence “Virtual Accounting Solution LLP (VASL) is knowledge driven, highly reliable and technically advanced accounting outsourcing company offering bookkeeping, accounting, tax returns…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 61 contacts → | ||||
Indirect evidence “KGMC India provides state-of-the-art financial services to some of the World's leading brands.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 61 contacts → | ||||
Partial evidence “Established in 2012, Anderson Business Solutions (Anderson BPO) provides comprehensive Finance & Accounting (F&A) outsourcing services to accounting firms & SME clients based in…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 59 contacts → | ||||
Indirect evidence “Founded in 2015, Taskflow Answer has aggressively grown to 150-plus employees.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 52 contacts → | ||||
Partial evidence “Laabdhi is a Financial Outsourcing firm that understands the importance of delivering timely and reliable financial planning and financial analysis solution for the smooth and…” Source: RevenueBase Database · checked Sep 27, 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: billing and invoicing outsourcing 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 billing and invoicing outsourcing companies.
- Partial evidence
- Its own public description names part of billing and invoicing outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name billing and invoicing outsourcing 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 523 billing and invoicing outsourcing companies based in India
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Billing and invoicing outsourcing companies based in India at a glance
As of Sep 27, 2026Companies by employee count
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 523 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 billing and invoicing outsourcing 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 India whose own description of what they do matches “billing and invoicing outsourcing 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 billing and invoicing outsourcing 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 billing and invoicing outsourcing companies, 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, 723 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 27, 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.
Billing and invoicing outsourcing companies by metro
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 billing and invoicing outsourcing 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 billing and invoicing outsourcing companies are there based in India?
RevenueBase identified 523 billing and invoicing outsourcing companies 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?
Imarque Solutions Pvt. LTD, headquartered in Chennai, tops this list with the largest team on record.
Which city has the most billing and invoicing outsourcing companies?
Ahmedabad leads with 77 headquartered companies, followed by Chennai (35) and New Delhi (32).
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 723 verified decision-maker contacts tracked across these 523 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 27, 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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