Company lists · Data refreshed September 2026

Top 25 Knowledge process outsourcing firms worldwide

Name: Knowledge process outsourcing firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,243 companies tracked

RevenueBase identified 1,243 knowledge process outsourcing firms worldwide as of September 2026 and tracks 43,136 professional contacts across them, including 4,613 with verified work emails. India is the largest market and Ahmedabad the largest hub.

This list covers knowledge process outsourcing firms worldwide, 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 28, 2026. Country and city lists for knowledge process outsourcing firms follow the table.

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 28, 2026 86% judged on-target in blind review

1,243Companies

43,136Contacts tracked

4,613Verified emails

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The 25 largest knowledge process outsourcing firms worldwide

Ranked by team size

Top 25 of 1,243 knowledge process outsourcing firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to knowledge process outsourcing firms: 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	Provana	Strong evidence	Lisle, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,412 contacts →
	Strong evidence “Provana, a highly specialized knowledge process management company delivers the perfect blend of technology and human-enabled solutions to the credit and collections, legal…” Source: RevenueBase Database · checked Sep 28, 2026
2	Eosglobe	Partial evidence	Thane - West, IndiaHQ checked Sep 28, 2026	10001+	1,712 contacts →
	Partial evidence “EOSGlobe is a business process management company offering high-quality services powered by cutting-edge digital technologies.” Source: RevenueBase Database · checked Sep 28, 2026
3	Scientific Publishing Services PVT LTD	Strong evidence	IndiaHQ checked Sep 28, 2026	1,001-5,000	1,284 contacts →
	Strong evidence “SPS is a full-service knowledge process outsourcing (KPO) partner offering services that cater to the publishing, finance, accounting, marketing, and design requirements of its…” Source: RevenueBase Database · checked Sep 28, 2026
4	SEBPO	Indirect evidence	Marlton, NJ, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,237 contacts →
	Indirect evidence “SEBPO transforms operational complexity into a seamless, strategic advantage.” Source: RevenueBase Database · checked Sep 28, 2026
5	Invensis	Indirect evidence	Bangalore, IndiaHQ checked Sep 28, 2026	1,001-5,000	995 contacts →
	Indirect evidence “At Invensis, we solve business inefficiencies.” Source: RevenueBase Database · checked Sep 28, 2026
6	Digicon Technologies LTD	Partial evidence	Dhaka, BangladeshHQ checked Sep 28, 2026	1,001-5,000	953 contacts →
	Partial evidence “Digicon Technologies PLC is a leading outsourcing organization in Bangladesh, with an industry leading edge in the vertical of BPO and IT/ITES solutions.” Source: RevenueBase Database · checked Sep 28, 2026
7	Ileads Auxiliary Services PVT LTD	Indirect evidence	Dehra Dun, IndiaHQ checked Sep 28, 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 28, 2026
8	STT Group	Partial evidence	Tibás, Costa RicaHQ checked Sep 28, 2026	1,001-5,000	681 contacts →
	Partial evidence “NUESTRA MISION: Satisfacer la necesidad de nuestros clientes por medio de procesos en una constante búsqueda del mejoramiento continuo.” Source: RevenueBase Database · checked Sep 28, 2026
9	Verity Knowledge Solutions Pvt. LTD	Strong evidence	Hyderabad, IndiaHQ checked Sep 28, 2026	501-1,000	634 contacts →
	Strong evidence “Verity Knowledge Solutions is a top tier Knowledge Process Outsourcing (KPO) firm providing Investment Banking (IB)/Corporate Finance research and analytics support services.” Source: RevenueBase Database · checked Sep 28, 2026
10	Global Strategic Business Process Solutions	Strong evidence	Burlington, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	553 contacts →
	Strong evidence “Global Strategic is a business process outsourcing partner that builds high-performing teams through custom onshore, nearshore, and offshore solutions.” Source: RevenueBase Database · checked Sep 28, 2026
11	Ascendum KPS	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 28, 2026	1,001-5,000	552 contacts →
	Indirect evidence “Ascendum KPS Private Limited is a division of Ascendum Solutions and the most respected and trusted service provider of BPO/KPO services for the Customer Support, Mortgage…” Source: RevenueBase Database · checked Sep 28, 2026
12	Premier NX	Strong evidence	New Providence, NJ, United StatesHQ checked Sep 28, 2026	1,001-5,000	544 contacts →
	Strong evidence “Premier is a leading provider of tailored, knowledge process outsourcing solutions to enhance business outcomes for diverse industries, including financial services, healthcare…” Source: RevenueBase Database · checked Sep 28, 2026
13	DTI LLC	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	537 contacts →
	Strong evidence “Founded in 1998, DTI is an industry leading legal process outsourcing (LPO) company serving law firms and corporations around the world.” Source: RevenueBase Database · checked Sep 28, 2026
14	Cameo Corporate Services	Strong evidence	Chennai, IndiaHQ checked Sep 28, 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 28, 2026
15	BDO Esnad	Partial evidence	Cairo, EgyptHQ checked Sep 28, 2026	1,001-5,000	508 contacts →
	Partial evidence “BDO Esnad- Egyptian Joint Stock Company and a member of BDO International Limited- is a leading Business Process Service Provider providing organizations with BPO services that…” Source: RevenueBase Database · checked Sep 28, 2026
16	Mangalam Information Technologies Private Limited	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 28, 2026	501-1,000	502 contacts →
	Indirect evidence “Since Mangalam has been a trusted partner for global businesses across IT, legal, and healthcare industries, empowering them with tailored strategies and innovative execution.” Source: RevenueBase Database · checked Sep 28, 2026
17	Sandmartin	Indirect evidence	Noida, IndiaHQ checked Sep 28, 2026	501-1,000	486 contacts →
	Indirect evidence “SandMartin is a distinguished industry leader with a 40-year legacy, employing over 550 skilled professionals across five offices in India, including state-of-the-art facilities…” Source: RevenueBase Database · checked Sep 28, 2026
18	Carisma Solutions Private Limited	Strong evidence	Chennai, IndiaHQ checked Sep 28, 2026	501-1,000	454 contacts →
	Strong evidence “Carisma Solutions is a world-class Knowledge Process Outsourcing (KPO) co, with its facilities in India and Australia.” Source: RevenueBase Database · checked Sep 28, 2026
19	OKS Group	Indirect evidence	Bala Cynwyd, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	416 contacts →
	Indirect evidence “Founded in 1985, OKS Group provides customized BPO and LPO services to some of the world's largest and most demanding companies.” Source: RevenueBase Database · checked Sep 28, 2026
20	Offshore Business Processing	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	501-1,000	404 contacts →
	Indirect evidence “We are OBP.” Source: RevenueBase Database · checked Sep 28, 2026
21	Visaya	Strong evidence	Las Vegas, NV, United StatesHQ checked Sep 28, 2026	501-1,000	366 contacts →
	Strong evidence “Visaya Knowledge Process Outsourcing Corporation.” Source: RevenueBase Database · checked Sep 28, 2026
22	Adlim-Terceirizacao EM Servicos	Indirect evidence	Bezerros, BrazilHQ checked Sep 28, 2026	1,001-5,000	334 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
23	Cidesa	Strong evidence	Asunción, ParaguayHQ checked Sep 28, 2026	1,001-5,000	318 contacts →
	Strong evidence “Somos una empresa BPO (Business Process Outsourcing) líder en la tercerización de procesos de negocio y en el gestionamiento de soluciones a la medida de nuestros Clientes.” Source: RevenueBase Database · checked Sep 28, 2026
24	Sencor	Strong evidence	Makati City, PhilippinesHQ checked Sep 28, 2026	1,001-5,000	318 contacts →
	Strong evidence “SENCOR is a Knowledge Process Outsourcing organization with over 25 years of experience in providing information-based solutions to top companies in the legal, financial, and…” Source: RevenueBase Database · checked Sep 28, 2026
25	BDO Solutions	Partial evidence	Moka, MauritiusHQ checked Sep 28, 2026	501-1,000	310 contacts →
	Partial evidence “BDO Solutions is a Business Services & Outsourcing company located in Mauritius and forms part of the international BDO network, which extends across 166 countries and…” Source: RevenueBase Database · checked Sep 28, 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: knowledge process outsourcing firms. 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 knowledge process outsourcing firms.
Partial evidence: Its own public description names part of knowledge process outsourcing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name knowledge process outsourcing firms. 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 1,243 knowledge process outsourcing firms worldwide

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Knowledge process outsourcing firms worldwide at a glance

As of Sep 28, 2026

10.7%Verified-email coverage

34.7Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · Ahmedabad

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

333

11-50

464

51-200

281

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 knowledge process outsourcing firms, 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.
Coverage: Every country. Country and city lists for knowledge process outsourcing firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “knowledge process outsourcing firms”. 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 knowledge process outsourcing firms), 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 knowledge process outsourcing firms, and records with no verified work email.
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, 4,613 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 28, 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.

Knowledge process outsourcing firms by location

6 lists · largest first

Every Knowledge process outsourcing firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Knowledge process outsourcing firms based in Ahmedabad, India36

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 knowledge process outsourcing firms, 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 knowledge process outsourcing firms are there worldwide?

RevenueBase identified 1,243 knowledge process outsourcing firms worldwide 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?

Provana, headquartered in Lisle, tops this list with the largest team on record.

Which country has the most knowledge process outsourcing firms?

India leads with 468 companies, followed by the United States (125) and the Philippines (52). Every knowledge process outsourcing firms list by country and city is linked on this page.

Which city has the most knowledge process outsourcing firms?

Ahmedabad leads with 36 headquartered companies, followed by New Delhi (32) and Mumbai (30).

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 4,613 verified decision-maker contacts tracked across these 1,243 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 28, 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.