Company lists · Data refreshed September 2026

Top 25 B2B sales process outsourcing firms worldwide

Name: B2B sales process outsourcing firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 16,642 companies tracked

RevenueBase identified 16,642 company matches for B2B sales process outsourcing firms worldwide as of September 2026 and tracks 200,076 professional contacts across them, including 21,922 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for B2B sales process outsourcing firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026. Country and city lists for B2B sales process outsourcing firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built

16,642Companies

200,076Contacts tracked

21,922Verified emails

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The 25 largest B2B sales process outsourcing firms worldwide

Ranked by team size

Top 25 of 16,642 company matches for B2B sales process outsourcing firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	V4 Company	Exact match	Campinas, BrazilHQ recorded Sep 27, 2026	1,001-5,000	5,079 contacts →
	Exact match “Somos uma assessoria de marketing focada em construir e otimizar o processo de vendas através da internet conectando pessoas que geram resultados com empresas que buscam vender…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Ibex. Pakistan	Exact match	Karachi, PakistanHQ recorded Sep 27, 2026	10001+	4,161 contacts →
	Exact match “ibex.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Stream Global Services	Exact match	Eagan, MN, United StatesHQ recorded Sep 27, 2026	10001+	2,772 contacts →
	Exact match “Stream Global Services is a premium business process outsource (BPO) service provider specializing in customer relationship management solutions including sales, customer care…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Marketstar	Exact match	Ogden, UT, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,446 contacts →
	Exact match “MarketStar is a global B2B sales outsourcing leader with 38+ years of experience driving predictable revenue growth.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	Denave	Exact match	Noida, IndiaHQ recorded Sep 27, 2026	5,001-10,000	2,270 contacts →
	Exact match “We are revenue AI-X-lerators.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Allied Global	Exact match	GuatemalaHQ recorded Sep 27, 2026	5,001-10,000	1,979 contacts →
	Exact match “Regardless of your Company’s size (from Start-ups to Fortune 500), business vertical or service requirements, we act as a seamless extension of your team to help you grow, and…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	Webhelp Enterprise	Exact match	Paris, FranceHQ recorded Sep 27, 2026	10001+	1,795 contacts →
	Exact match “The Concentrix B2B sales practice is here to design, build and run projects for our clients.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Full Potential Solutions	Exact match	Waltham, MA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,238 contacts →
	Exact match “Full Potential Solutions (FPS) is a new kind of performance-based outsourcing firm that puts culture and employees first, because we believe that happy, fulfilled teams accomplish…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	SEBPO	Exact match	Marlton, NJ, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,237 contacts →
	Exact match “SEBPO transforms operational complexity into a seamless, strategic advantage.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Iccs -Business Process Management Company	Exact match	Noida, IndiaHQ recorded Sep 27, 2026	1,001-5,000	1,202 contacts →
	Exact match “ICCS, a Business Process Outsourcing company, proposes to assist your setup by not only executing the typical outsourced BPO services, but by committing to provide the essential…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	Etisal International Group	Exact match	Cairo, EgyptHQ recorded Sep 27, 2026	1,001-5,000	1,105 contacts →
	Exact match “Customer”, the word that describes the most important aspect in any business, which, in whatever industry, business revolves around!” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Rewardsco	Exact match	Durban, South AfricaHQ recorded Sep 27, 2026	1,001-5,000	917 contacts →
	Exact match “Our People.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Inktel Contact Center Solutions	Exact match	Doral, FL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	902 contacts →
	Exact match “Our Company Inktel is a leading business process outsourcer that specializes in creating personalized call center solutions which enable our clients to increase market share…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Convergys Intelligent Contact	Exact match	Altrincham, United KingdomHQ recorded Sep 27, 2026	10001+	873 contacts →
	Exact match “At Convergys Intelligent Contact, we build sustainable revenue streams for our clients.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	ZAZ Vendas	Exact match	Campinas, BrazilHQ recorded Sep 27, 2026	501-1,000	796 contacts →
	Exact match “Em um mercado cada vez mais competitivo, onde a eficiência em vendas massificadas e externas é um desafio constante, a ZAZ Vendas surge como a resposta definitiva.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	CPM International	Exact match	Thame, United KingdomHQ recorded Sep 27, 2026	10001+	777 contacts →
	Exact match “CPM is an international sales outsourcing and customer experience agency.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Salelytics	Exact match	Appleton, WI, United StatesHQ recorded Sep 27, 2026	1,001-5,000	776 contacts →
	Exact match “Salelytics is now MarketSource.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Abstrakt Marketing Group	Exact match	St Louis, MO, United StatesHQ recorded Sep 27, 2026	501-1,000	724 contacts →
	Exact match “We book the qualified meetings that fill your pipeline for any B2B company ready to grow.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Talksure	Exact match	Durban, South AfricaHQ recorded Sep 27, 2026	501-1,000	718 contacts →
	Exact match “Established in 2010, Talksure has developed a reputation for being a respected financial services provider and outsource business services partner.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Salebuild	Exact match	Redwood City, CA, United StatesHQ recorded Sep 27, 2026	n/a	708 contacts →
	Exact match “Salesify, a leading provider of B2B demand generation services, helps our clients create pipeline and accelerate revenue by identifying, profiling, nurturing and connecting with…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Flexisales INC	Exact match	Las Vegas, NV, United StatesHQ recorded Sep 27, 2026	201-500	697 contacts →
	Exact match “Flexisales, is a global frontrunner in B2B Lead & Demand Generation and Data Services, serving technology companies & agencies worldwide.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Girnar Care	Exact match	Jaipur, IndiaHQ recorded Sep 27, 2026	501-1,000	649 contacts →
	Exact match “We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	DMF Sales&marketing	Exact match	Asnières Sur Seine, FranceHQ recorded Sep 27, 2026	201-500	632 contacts →
	Exact match “MISSION DMF sales and marketing est un des tous premiers prestataires d’externalisation commerciale en France.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Infinity	Exact match	Cedar Rapids, IA, United StatesHQ recorded Sep 27, 2026	501-1,000	609 contacts →
	Exact match “Infinity is an award-winning inside sales agency and consulting firm with 30 years of experience helping B2B companies maximize sales and drive revenue.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	RND Softech	Exact match	Coimbatore, IndiaHQ recorded Sep 27, 2026	1,001-5,000	596 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “B2B sales process outsourcing firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 16,642 B2B sales process outsourcing firms worldwide

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B2B sales process outsourcing firms worldwide at a glance

As of Sep 27, 2026

11.0%Verified-email coverage

12.0Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

9,073

11-50

5,028

51-200

1,779

201-500

480

501-1,000

146

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for B2B sales process outsourcing firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “B2B sales process outsourcing firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 21,922 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

B2B sales process outsourcing firms by location

67 lists · largest first

Every B2B sales 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

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “B2B sales process outsourcing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B sales process outsourcing firms are there worldwide?

RevenueBase identified 16,642 company matches for B2B sales process outsourcing firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

V4 Company tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most B2B sales process outsourcing firms?

The United States leads with 3,350 companies, followed by India (1,662) and the United Kingdom (1,073). Every B2B sales process outsourcing firms list by country and city is linked on this page.

Which city has the most B2B sales process outsourcing firms?

London leads with 371 company records, followed by Pune (330) and Sao Paulo (173).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 21,922 professional contacts with verified work emails tracked across these 16,642 companies; direct dials are available where recorded.

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 SmartSearch, 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.