Company lists · Data refreshed September 2026
Top 14 Back office outsourcing companies based in Sri Lanka
RevenueBase identified 103 back office outsourcing companies headquartered in Sri Lanka as of September 2026 and tracks 1,629 professional contacts across them, including 154 with verified work emails. Colombo is the largest hub.
This list covers back office outsourcing companies headquartered in Sri Lanka, 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.
The 14 largest back office outsourcing companies based in Sri Lanka
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 179 contacts → | ||||
Partial evidence “Since 1997, CMS is one of Sri Lanka’s best-established IT offshoring/outsourcing providers, providing bespoke offshore IT teams.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 131 contacts → | ||||
Indirect evidence “Outdesk Group was born with a vision to create affordable online BPO solutions for small and mid-sized companies around the world.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 106 contacts → | ||||
Indirect evidence “A leader in transforming business operations for the better through people, process, and technical brilliance.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 72 contacts → | ||||
Partial evidence “Tellida (Pvt) Ltd is a global outsourcing company providing Legal Process Outsourcing (LPO), Finance & Accounting Outsourcing (FAO), Contact Centre services, and Remote Business…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 32 contacts → | ||||
Indirect evidence “Contact Center Solutions Provider” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 24 contacts → | ||||
Strong evidence “SISKA is one of the leading providers of Accounting, Auditing and Secretarial services, offering a wide range of back office, customer care & support, virtual secretary and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 23 contacts → | ||||
Indirect evidence “At Make Stuff Happen, is a strategic offshore service partner dedicated to help our customers solve their challenging problems.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 21 contacts → | ||||
Strong evidence “At Victoria Partners, we specialize in providing reliable and efficient back-office support services tailored to help businesses streamline their operations and drive growth.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 14 contacts → | ||||
Strong evidence “Envic Global is a BPO located in Sri Lanka, providing comprehensive solutions for inbound and outbound sales, customer care, and back-office operations.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 12 contacts → | ||||
Partial evidence “Finplex Solution is an outsourcing services company in Sri Lanka.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 10 contacts → | ||||
Indirect evidence “Investlab Business Solutions is a innovative and modernized company based in Sri Lanka provide various professional services include Legal, Accounting and Finance, Expert Services…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 contacts → | ||||
Indirect evidence “Our one-stop suite of business services include a variety of functions that can be custom curated to suit the needs of your business.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 3 contacts → | ||||
Partial evidence “Know Tech Solutions is a premier Business Process Outsourcing (BPO) company specializing in telemarketing and customer service support.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1 contacts → | ||||
Partial evidence “Rigor Consulting delivers conclusive finance, accounting, and payroll process outsourcing services to enable and empower its clientele to focus on its business.” Source: RevenueBase Database · checked Sep 14, 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: back office 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 back office outsourcing companies.
- Partial evidence
- Its own public description names part of back office outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name back office 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 14 of 103 back office outsourcing companies based in Sri Lanka
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Back office outsourcing companies based in Sri Lanka at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Sri Lanka, so it is reported there. Company counts and contact totals on this page are exact for Sri Lanka, over 103 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 back office 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 Sri Lanka whose own description of what they do matches “back office 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 back office 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 back office outsourcing companies, and records with no verified work email. Companies headquartered outside Sri Lanka 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, 154 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.
Back office outsourcing companies by metro
- Back office outsourcing companies in Colombo50
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 back office 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 back office outsourcing companies are there based in Sri Lanka?
RevenueBase identified 103 back office outsourcing companies headquartered in Sri Lanka 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?
CMS, headquartered in Sri Lanka, tops this list with the largest team on record.
Which city has the most back office outsourcing companies?
Colombo leads with 50 headquartered companies, followed by Nugegoda (4) and Gampaha (3).
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 154 verified decision-maker contacts tracked across these 103 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.
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