Company lists · Data refreshed September 2026

Top 25 B2B service providers worldwide

Name: B2B service providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 22,925 companies tracked

RevenueBase identified 22,925 B2B service providers worldwide as of September 2026 and tracks 225,165 professional contacts across them, including 28,417 with verified work emails. The United States is the largest market and London the largest hub.

This list covers B2B service providers 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 21, 2026. Country and city lists for B2B service providers 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 21, 2026 86% judged on-target in blind review

22,925Companies

225,165Contacts tracked

28,417Verified emails

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The 25 largest B2B service providers worldwide

Ranked by team size

Top 25 of 22,925 B2B service providers worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to B2B service providers: 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	Indiamart Intermesh Limited	Strong evidence	Noida, IndiaHQ checked Sep 21, 2026	5,001-10,000	17,003 contacts →
	Strong evidence “IndiaMART is India's largest online B2B marketplace, connecting buyers with suppliers across a wide array of industries.” Source: RevenueBase Database · checked Sep 21, 2026
2	Eficacia	Indirect evidence	Cali, ColombiaHQ checked Sep 21, 2026	10001+	4,692 contacts →
	Indirect evidence “Incrementamos la productividad y eficiencia de nuestros clientes- Más de 40 años de experiencia en el mercado- Líderes en Soluciones de Mercadeo, Trade Marketing, Ventas y Gestión…” Source: RevenueBase Database · checked Sep 21, 2026
3	Nova RIO	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 21, 2026	1,001-5,000	1,895 contacts →
	Indirect evidence “A Nova Rio é uma empresa líder em multiplicidade de serviços, porque oferece um mundo de opções em terceirização para a sua empresa.” Source: RevenueBase Database · checked Sep 21, 2026
4	Webhelp Enterprise	Strong evidence	Paris, FranceHQ checked Sep 21, 2026	10001+	1,795 contacts →
	Strong evidence “The Concentrix B2B sales practice is here to design, build and run projects for our clients.” Source: RevenueBase Database · checked Sep 21, 2026
5	Derby Group Of Companies	Indirect evidence	Karama, ChileHQ checked Sep 21, 2026	10001+	1,652 contacts →
	Indirect evidence “Derby Group is a rapidly growing business group based in UAE, with an enviable client base across more than 8 business sectors.” Source: RevenueBase Database · checked Sep 21, 2026
6	Nspira Management Services PVT LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 21, 2026	10001+	1,646 contacts →
	Indirect evidence “NSPIRA Management Services Pvt Ltd offers customized services to organizations that aim for professional excellence.” Source: RevenueBase Database · checked Sep 21, 2026
7	RDI Corporation	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,484 contacts →
	Indirect evidence “At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.” Source: RevenueBase Database · checked Sep 21, 2026
8	Pierian Services	Indirect evidence	Bangalore, IndiaHQ checked Sep 21, 2026	1,001-5,000	1,470 contacts →
	Indirect evidence “Founded in 2002, PIERIAN Services is a leading Global Business Services company, providing a range of services and solutions in strategy, consulting, and operations management.” Source: RevenueBase Database · checked Sep 21, 2026
9	Grupo MAP	Indirect evidence	Salvador - São Paulo, BrazilHQ checked Sep 21, 2026	10001+	1,440 contacts →
	Indirect evidence “Fundado em Dezembro de 2001, o Grupo MAP traz em seu DNA a arte de servir e o compromisso de manter seus clientes sempre satisfeitos.” Source: RevenueBase Database · checked Sep 21, 2026
10	Moglix	Strong evidence	SingaporeHQ checked Sep 21, 2026	1,001-5,000	1,345 contacts →
	Strong evidence “We are an Asia-based B2B commerce company intensively inclined towards B2B procurement of industrial supplies, in particular, MRO, Safety, Electrical & Lighting, Cleaning &…” Source: RevenueBase Database · checked Sep 21, 2026
11	W3global	Indirect evidence	Frisco, TX, United StatesHQ checked Sep 21, 2026	501-1,000	1,149 contacts →
	Indirect evidence “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Source: RevenueBase Database · checked Sep 21, 2026
12	Haufe Group	Strong evidence	Freiburg, GermanyHQ checked Sep 21, 2026	1,001-5,000	1,046 contacts →
	Strong evidence “Haufe Group is a leading B2B provider of integrated business and workplace solutions.” Source: RevenueBase Database · checked Sep 21, 2026
13	Appdirect	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	501-1,000	924 contacts →
	Strong evidence “AppDirect is a San Francisco-based B2B subscription commerce platform company that brings together technology providers, advisors, and businesses to simplify how they buy, sell…” Source: RevenueBase Database · checked Sep 21, 2026
14	Adecco Outsourcing	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	501-1,000	887 contacts →
	Indirect evidence “Adecco Outsourcing propose aux entreprises des solutions d’externalisation dédiées à l’Accueil en entreprise, à l’Evènementiel, au Marketing terrain et aux activités de production…” Source: RevenueBase Database · checked Sep 21, 2026
15	HRSG	Indirect evidence	Dubai, United StatesHQ checked Sep 21, 2026	10001+	785 contacts →
	Indirect evidence “HRSG is a group of companies providing business solutions globally.” Source: RevenueBase Database · checked Sep 21, 2026
16	GBS Corp	Strong evidence	North Canton, OH, United StatesHQ checked Sep 21, 2026	201-500	742 contacts →
	Strong evidence “GBS Corp is a multi-faceted B2B solutions provider delivering integrated marketing, print, packaging, technology and healthcare IT services, all under one roof.” Source: RevenueBase Database · checked Sep 21, 2026
17	Anteriad	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	501-1,000	740 contacts →
	Indirect evidence “Data Driven.” Source: RevenueBase Database · checked Sep 21, 2026
18	デロイトトーマツコンサルティング(合同)	Indirect evidence	千代田区, JapanHQ checked Sep 21, 2026	501-1,000	696 contacts →
	Indirect evidence “is a management consulting company based out of, Japan.” Source: RevenueBase Database · checked Sep 21, 2026
19	ODP Business Solutions	Strong evidence	Boca Raton, FL, United StatesHQ checked Sep 21, 2026	501-1,000	687 contacts →
	Strong evidence “ODP Business Solutions, an operating company of The ODP Group, is a leading B2B provider of workplace and technology solutions, combining an extensive range of products and…” Source: RevenueBase Database · checked Sep 21, 2026
20	Point B	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	501-1,000	656 contacts →
	Indirect evidence “At Point B, we help organizations adapt and thrive in a world that refuses to stand still.” Source: RevenueBase Database · checked Sep 21, 2026
21	Grupo Progestion	Indirect evidence	Santiago, ChileHQ checked Sep 21, 2026	1,001-5,000	634 contacts →
	Indirect evidence “Grupo Progestion a través de sus diferentes unidades estratégicas, genera para sus clientes soluciones en 360º, esto a través de la integración de diversos servicios relacionados…” Source: RevenueBase Database · checked Sep 21, 2026
22	Visable	Indirect evidence	Hamburg, GermanyHQ checked Sep 21, 2026	201-500	622 contacts →
	Indirect evidence “Visable enables small and medium-sized industrial businesses to make products and services internationally accessible to purchasers.” Source: RevenueBase Database · checked Sep 21, 2026
23	Digitize Brand HUB India PVT LTD	Indirect evidence	Pune, IndiaHQ checked Sep 21, 2026	n/a	622 contacts →
	Indirect evidence “We at Digitize Brand pledge to provide unique and innovative solutions to our clients based on their needs.” Source: RevenueBase Database · checked Sep 21, 2026
24	SEI	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 21, 2026	501-1,000	618 contacts →
	Indirect evidence “SEI is a management consulting firm delivering fresh perspectives and reliable results.” Source: RevenueBase Database · checked Sep 21, 2026
25	Brickwork India	Indirect evidence	Bangalore, IndiaHQ checked Sep 21, 2026	201-500	557 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

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: B2B service providers. 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 B2B service providers.
Partial evidence: Its own public description names part of B2B service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name B2B service providers. 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 22,925 B2B service providers worldwide

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B2B service providers worldwide at a glance

As of Sep 21, 2026

12.6%Verified-email coverage

9.8Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

14,556

11-50

5,807

51-200

1,675

201-500

468

501-1,000

174

1,001-5,000

124

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 B2B service providers, 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 B2B service providers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “B2B service providers”. 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 B2B service providers), 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 B2B service providers, 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, 28,417 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.

B2B service providers by location

84 lists · largest first

Every B2B service providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 B2B service providers, 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 B2B service providers are there worldwide?

RevenueBase identified 22,925 B2B service providers 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?

Indiamart Intermesh Limited, headquartered in Noida, tops this list with the largest team on record.

Which country has the most B2B service providers?

The United States leads with 3,563 companies, followed by India (1,992) and Brazil (1,298). Every B2B service providers list by country and city is linked on this page.

Which city has the most B2B service providers?

London leads with 326 headquartered companies, followed by Sao Paulo (310) and Dubai (237).

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 28,417 verified decision-maker contacts tracked across these 22,925 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.