Company lists · Data refreshed September 2026

Top 25 Outbound sales consulting firms worldwide

Name: Outbound sales consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 24,455 companies tracked

RevenueBase identified 24,455 company matches for outbound sales consulting firms worldwide as of September 2026 and tracks 157,200 professional contacts across them, including 21,075 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for outbound sales consulting 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 29, 2026. Country and city lists for outbound sales consulting 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 29, 2026 How this list was built

24,455Companies

157,200Contacts tracked

21,075Verified emails

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The 25 largest outbound sales consulting firms worldwide

Ranked by team size

Top 25 of 24,455 company matches for outbound sales consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	Marketsource INC	Exact match	Alpharetta, GA, United StatesHQ recorded Sep 29, 2026	5,001-10,000	3,063 contacts →
	Exact match “MarketSource, an Allegis Group company, is a sales acceleration company focused on delivering better outcomes for many of the world’s most iconic brands.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Marketstar	Exact match	Ogden, UT, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
3	Webhelp Enterprise	Exact match	Paris, FranceHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
4	Full Potential Solutions	Exact match	Waltham, MA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
5	crystel.co	Exact match	Amman, JordanHQ recorded Sep 29, 2026	1,001-5,000	1,128 contacts →
	Exact match “Crystel emerged as a leading Outsourcing Service Provider (OSP) since its establishment in Jordan in early 2007.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Inktel Contact Center Solutions	Exact match	Doral, FL, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
7	Servestsa	Exact match	Caracas, VenezuelaHQ recorded Sep 29, 2026	n/a	865 contacts →
	Exact match “Statistics first” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	ZAZ Vendas	Exact match	Campinas, BrazilHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
9	Abstrakt Marketing Group	Exact match	St Louis, MO, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
10	Salebuild	Exact match	Redwood City, CA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
11	Infinity	Exact match	Cedar Rapids, IA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
12	Telenet Marketing Solutions	Exact match	Athens, GA, IndiaHQ recorded Sep 29, 2026	201-500	553 contacts →
	Exact match “From initial market awareness to the final stages of a complex B2B buying journey, modern buyers crave authentic interaction.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Movingdneedle Pvt. LTD	Exact match	Sterling Heights, MI, United StatesHQ recorded Sep 29, 2026	51-200	528 contacts →
	Exact match “movingDneedle is a Business to Business Sales Lead Generation Company that provides fast and scalable, sales qualified leads through its unique Personalized Email Marketing…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Callbox INC	Exact match	Encino, CA, United StatesHQ recorded Sep 29, 2026	201-500	499 contacts →
	Exact match “Callbox is the #1 trusted lead generation services and AI-Powered Growth Strategy Partner by enterprise and scaling businesses in the USA, Canada, Asia Pacific, Latin America…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Saleshive	Exact match	Denver, CO, United StatesHQ recorded Sep 29, 2026	51-200	455 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	3eriza	Exact match	Surquillo, PeruHQ recorded Sep 29, 2026	1,001-5,000	391 contacts →
	Exact match “3eriza es una consultora especializada en el diseño, implementación y optimización de la provisión de servicios a empresas, brindando soporte en dos frentes: Asesorando a empresas…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	The Lead Market	Exact match	Nagpur, IndiaHQ recorded Sep 29, 2026	51-200	387 contacts →
	Exact match “TLM empowers businesses to generate revenue through their qualified leads.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	EBQ	Exact match	Austin, TX, United StatesHQ recorded Sep 29, 2026	201-500	377 contacts →
	Exact match “EBQ is an outsourced sales and marketing organization that provides services to help companies scale.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Cobmax	Exact match	Sao Jose Do Rio Preto, BrazilHQ recorded Sep 29, 2026	501-1,000	376 contacts →
	Exact match “A Cobmax é uma Sales Center com inteligência em vendas, fruto de metodologia própria, testada e aprovada em 11 anos de experiência.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Miller Heiman Group, A Korn Ferry Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	501-1,000	371 contacts →
	Exact match “Miller Heiman Group is now part of Korn Ferry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Ranger	Exact match	Paris, FranceHQ recorded Sep 29, 2026	201-500	364 contacts →
	Exact match “Ranger est une société française rattachée au groupe Ranger Marketing, fondé en 1992 et basé en Allemagne dans la ville de Düsseldorf.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Freelan	Exact match	Huixquilucan, MexicoHQ recorded Sep 29, 2026	n/a	340 contacts →
	Exact match “En Freelan, creemos que el crecimiento sostenible no es fruto del azar, sino de un sistema bien diseñado.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Jumpcrew	Exact match	Nashville, TN, United StatesHQ recorded Sep 29, 2026	201-500	339 contacts →
	Exact match “Launch-ready sales teams, experienced leaders, and time-tested processes to help you acquire new customers faster and with less risk than doing it alone.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Inventive SMI	Exact match	IndiaHQ recorded Sep 29, 2026	201-500	339 contacts →
	Exact match “Inventive SMi was founded in 2008 with the goal of providing enterprise-grade communications solutions to businesses of all sizes.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Cydcor	Exact match	Agoura Hills, CA, United StatesHQ recorded Sep 29, 2026	51-200	328 contacts →
	Exact match “We create opportunity: For our clients, our team, and the future.” Recorded in the RevenueBase company graph · Sep 29, 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 “outbound sales consulting 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 24,455 outbound sales consulting firms worldwide

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Outbound sales consulting firms worldwide at a glance

As of Sep 29, 2026

13.4%Verified-email coverage

6.4Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

17,924

11-50

4,860

51-200

1,233

201-500

276

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

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 outbound sales consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “outbound sales consulting 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 21,075 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 29, 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.

Outbound sales consulting firms by location

109 lists · largest first

Every Outbound sales consulting 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 “outbound sales consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outbound sales consulting firms are there worldwide?

RevenueBase identified 24,455 company matches for outbound sales consulting 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?

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

Which country has the most outbound sales consulting firms?

The United States leads with 6,020 companies, followed by the United Kingdom (1,673) and Brazil (1,287). Every outbound sales consulting firms list by country and city is linked on this page.

Which city has the most outbound sales consulting firms?

London leads with 557 company records, followed by Sao Paulo (328) and Paris (253).

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 21,075 professional contacts with verified work emails tracked across these 24,455 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 29, 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.