Company lists · Data refreshed September 2026

Top 25 Sales outsourcing services worldwide

Name: Sales outsourcing services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 10,277 companies tracked

RevenueBase identified 10,277 sales outsourcing services worldwide as of September 2026 and tracks 119,343 professional contacts across them, including 15,337 with verified work emails. The United States is the largest market and London the largest hub.

This list covers sales outsourcing services 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 sales outsourcing services 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

10,277Companies

119,343Contacts tracked

15,337Verified emails

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The 25 largest sales outsourcing services worldwide

Ranked by team size

Top 25 of 10,277 sales outsourcing services worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to sales outsourcing services: 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	V4 Company	Indirect evidence	Campinas, BrazilHQ checked Sep 21, 2026	1,001-5,000	5,079 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
2	Salesland	Partial evidence	Madrid, MexicoHQ checked Sep 21, 2026	10001+	4,245 contacts →
	Partial evidence “We are Sales Specialists.” Source: RevenueBase Database · checked Sep 21, 2026
3	Marketsource INC	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 21, 2026	5,001-10,000	3,063 contacts →
	Partial evidence “MarketSource, an Allegis Group company, is a sales acceleration company focused on delivering better outcomes for many of the world’s most iconic brands.” Source: RevenueBase Database · checked Sep 21, 2026
4	Marketstar	Strong evidence	Ogden, UT, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,446 contacts →
	Strong evidence “MarketStar is a global B2B sales outsourcing leader with 38+ years of experience driving predictable revenue growth.” Source: RevenueBase Database · checked Sep 21, 2026
5	Webhelp Enterprise	Partial evidence	Paris, FranceHQ checked Sep 21, 2026	10001+	1,795 contacts →
	Partial evidence “The Concentrix B2B sales practice is here to design, build and run projects for our clients.” Source: RevenueBase Database · checked Sep 21, 2026
6	Netambit	Indirect evidence	Noida, IndiaHQ checked Sep 21, 2026	10001+	1,584 contacts →
	Indirect evidence “NetAmbit helps businesses build a sustainable advantage by accelerating growth in high-touch offline areas.” Source: RevenueBase Database · checked Sep 21, 2026
7	BDS Connected Solutions, LLC	Partial evidence	Lake Forest, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,530 contacts →
	Partial evidence “BDS Connected Solutions offers a complete suite of solutions that blend Advocacy, Assisted Sales, Training, Virtual, Retail, Experiential, Merchandising, Break Fix, Installations…” Source: RevenueBase Database · checked Sep 21, 2026
8	Full Potential Solutions	Partial evidence	Waltham, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,238 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
9	Inktel Contact Center Solutions	Indirect evidence	Doral, FL, United StatesHQ checked Sep 21, 2026	1,001-5,000	902 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
10	Memoryblue	Indirect evidence	Tysons, VA, United StatesHQ checked Sep 21, 2026	501-1,000	825 contacts →
	Indirect evidence “memoryBlue is the go-to partner for revenue leaders in B2B Tech looking to grow their pipeline engine.” Source: RevenueBase Database · checked Sep 21, 2026
11	ZAZ Vendas	Indirect evidence	Campinas, BrazilHQ checked Sep 21, 2026	501-1,000	796 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
12	CPM International	Strong evidence	Thame, United KingdomHQ checked Sep 21, 2026	10001+	777 contacts →
	Strong evidence “CPM is an international sales outsourcing and customer experience agency.” Source: RevenueBase Database · checked Sep 21, 2026
13	Abstrakt Marketing Group	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 21, 2026	501-1,000	724 contacts →
	Indirect evidence “We book the qualified meetings that fill your pipeline for any B2B company ready to grow.” Source: RevenueBase Database · checked Sep 21, 2026
14	Talksure	Indirect evidence	Durban, South AfricaHQ checked Sep 21, 2026	501-1,000	718 contacts →
	Indirect evidence “Established in 2010, Talksure has developed a reputation for being a respected financial services provider and outsource business services partner.” Source: RevenueBase Database · checked Sep 21, 2026
15	Girnar Care	Indirect evidence	Jaipur, IndiaHQ checked Sep 21, 2026	501-1,000	649 contacts →
	Indirect evidence “We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.” Source: RevenueBase Database · checked Sep 21, 2026
16	DMF Sales&marketing	Partial evidence	Asnières Sur Seine, FranceHQ checked Sep 21, 2026	201-500	632 contacts →
	Partial evidence “MISSION DMF sales and marketing est un des tous premiers prestataires d’externalisation commerciale en France.” Source: RevenueBase Database · checked Sep 21, 2026
17	Infinity	Partial evidence	Cedar Rapids, IA, United StatesHQ checked Sep 21, 2026	501-1,000	609 contacts →
	Partial evidence “Infinity is an award-winning inside sales agency and consulting firm with 30 years of experience helping B2B companies maximize sales and drive revenue.” Source: RevenueBase Database · checked Sep 21, 2026
18	Telenet Marketing Solutions	Indirect evidence	Athens, GA, IndiaHQ checked Sep 21, 2026	201-500	553 contacts →
	Indirect evidence “From initial market awareness to the final stages of a complex B2B buying journey, modern buyers crave authentic interaction.” Source: RevenueBase Database · checked Sep 21, 2026
19	Movingdneedle Pvt. LTD	Partial evidence	Sterling Heights, MI, United StatesHQ checked Sep 21, 2026	51-200	528 contacts →
	Partial evidence “movingDneedle is a Business to Business Sales Lead Generation Company that provides fast and scalable, sales qualified leads through its unique Personalized Email Marketing…” Source: RevenueBase Database · checked Sep 21, 2026
20	The Pipeline Group	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	201-500	523 contacts →
	Indirect evidence “The Pipeline Group helps B2B tech companies scale pipeline fast through our SDR-as-a-Service model.” Source: RevenueBase Database · checked Sep 21, 2026
21	Infoanalytica, INC	Partial evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	201-500	482 contacts →
	Partial evidence “InfoAnalytica is a B2B sales acceleration partner for mid-market and enterprise companies.” Source: RevenueBase Database · checked Sep 21, 2026
22	Saleshive	Indirect evidence	Denver, CO, United StatesHQ checked Sep 21, 2026	51-200	455 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
23	Smart Circle International	Partial evidence	Newport Beach, CA, United StatesHQ checked Sep 21, 2026	51-200	426 contacts →
	Partial evidence “At Smart Circle, our goal is to provide our clients with access to customized face-to- face marketing and sales solutions by connecting our clients with a dynamic network of…” Source: RevenueBase Database · checked Sep 21, 2026
24	The Lead Market	Indirect evidence	Nagpur, IndiaHQ checked Sep 21, 2026	51-200	387 contacts →
	Indirect evidence “TLM empowers businesses to generate revenue through their qualified leads.” Source: RevenueBase Database · checked Sep 21, 2026
25	EBQ	Partial evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	201-500	377 contacts →
	Partial evidence “EBQ is an outsourced sales and marketing organization that provides services to help companies scale.” 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: sales outsourcing services. 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 sales outsourcing services.
Partial evidence: Its own public description names part of sales outsourcing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sales outsourcing services. 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 10,277 sales outsourcing services worldwide

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Sales outsourcing services worldwide at a glance

As of Sep 21, 2026

12.9%Verified-email coverage

11.6Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

5,871

11-50

3,065

51-200

963

201-500

239

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 sales outsourcing services, 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 sales outsourcing services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “sales outsourcing services”. 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 sales outsourcing services), 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 sales outsourcing services, 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, 15,337 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.

Sales outsourcing services by location

41 lists · largest first

Every Sales outsourcing services 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 sales outsourcing services, 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 sales outsourcing services are there worldwide?

RevenueBase identified 10,277 sales outsourcing services 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?

V4 Company, headquartered in Campinas, tops this list with the largest team on record.

Which country has the most sales outsourcing services?

The United States leads with 2,213 companies, followed by India (742) and the United Kingdom (728). Every sales outsourcing services list by country and city is linked on this page.

Which city has the most sales outsourcing services?

London leads with 217 headquartered companies, followed by Pune (151) and Sao Paulo (112).

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 15,337 verified decision-maker contacts tracked across these 10,277 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.