Company lists · Data refreshed November 2026

Top 25 Inside sales consultancies worldwide

Name: Inside sales consultancies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 11,727 companies tracked

RevenueBase identified 11,727 company matches for inside sales consultancies worldwide as of November 2026 and tracks 69,608 professional contacts across them, including 10,792 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for inside sales consultancies 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 November 5, 2026. Country and city lists for inside sales consultancies 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 Nov 5, 2026 How this list was built

11,727Companies

69,608Contacts tracked

10,792Verified emails

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The 25 largest inside sales consultancies worldwide

Ranked by team size

Top 25 of 11,727 company matches for inside sales consultancies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 Nov 5, 2026	5,001-10,000	3,613 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 · Nov 5, 2026 · View company records in RevenueBase
2	Webhelp Enterprise	Exact match	Paris, FranceHQ recorded Nov 5, 2026	10001+	1,824 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 · Nov 5, 2026 · View company records in RevenueBase
3	ZAZ Vendas	Exact match	Campinas, BrazilHQ recorded Nov 5, 2026	501-1,000	874 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 · Nov 5, 2026 · View company records in RevenueBase
4	Abstrakt Marketing Group	Exact match	St. Louis, MO, United StatesHQ recorded Nov 5, 2026	501-1,000	732 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 · Nov 5, 2026 · View company records in RevenueBase
5	Infinity	Exact match	Cedar Rapids, IA, United StatesHQ recorded Nov 5, 2026	501-1,000	601 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 · Nov 5, 2026 · View company records in RevenueBase
6	Richardson Sales Performance	Exact match	Philadelphia, United StatesHQ recorded Nov 5, 2026	201-500	534 contacts →
	Exact match “Richardson is a global sales training organization – equipping sales teams to win more business in an increasingly cautious and complex environment.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Miller Heiman Group, A Korn Ferry Company	Exact match	Chicago, IL, United StatesHQ recorded Nov 5, 2026	501-1,000	409 contacts →
	Exact match “Miller Heiman Group is now part of Korn Ferry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Cobmax	Exact match	Sao Jose Do Rio Preto, BrazilHQ recorded Nov 5, 2026	501-1,000	404 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 · Nov 5, 2026 · View company records in RevenueBase
9	EBQ	Exact match	Austin, TX, United StatesHQ recorded Nov 5, 2026	201-500	386 contacts →
	Exact match “EBQ is an outsourced sales and marketing organization that provides services to help companies scale.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Freelan	Exact match	Huixquilucan, MexicoHQ recorded Nov 5, 2026	n/a	350 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 · Nov 5, 2026 · View company records in RevenueBase
11	Sales Xceleration	Exact match	Fishers, IN, United StatesHQ recorded Nov 5, 2026	51-200	274 contacts →
	Exact match “At Sales Xceleration, we help businesses accelerate revenue growth through our Certified Sales Operating Management System™ and the guidance of our Fractional Sales Leaders.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Mercuri International Group	Exact match	Stockholm, SwedenHQ recorded Nov 5, 2026	501-1,000	273 contacts →
	Exact match “Every year Mercuri International empowers companies in over 50 countries to achieve sales excellence.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	IGC Partners	Exact match	São Paulo, BrazilHQ recorded Nov 5, 2026	201-500	236 contacts →
	Exact match “A igc partners é a assessoria de empresas líder em operações de venda total ou parcial e captação de recursos.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Virage Conseil	Exact match	56100, FranceHQ recorded Nov 5, 2026	201-500	236 contacts →
	Exact match “Spécialiste depuis presque 25 ans dans le développement commercial, Virage Conseil vous accompagne au quotidien pour accroître vos ventes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Sales Focus INC	Exact match	North Charleston, SC, United StatesHQ recorded Nov 5, 2026	201-500	213 contacts →
	Exact match “Sales Focus Inc.(SFI) pioneered the sales outsourcing industry in 1998.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Growth ERA	Exact match	Jacksonville, FL, United StatesHQ recorded Nov 5, 2026	51-200	212 contacts →
	Exact match “Growth Era (formerly nextsales) is a sales enablement company with a passion to empower the growth of ambitious B2B companies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Suxxeed Sales For Your Success Gmbh	Exact match	Nuremberg, GermanyHQ recorded Nov 5, 2026	201-500	200 contacts →
	Exact match “Als Vertriebspartner von B2B-Unternehmen steigern wir seit über 20 Jahren Umsätze, gewinnen neue Kunden und heben ungenutzte Marktpotenziale.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	T&n Business Services	Exact match	New Delhi, IndiaHQ recorded Nov 5, 2026	1,001-5,000	200 contacts →
	Exact match “T&N Business Services, is the leading consulting, services, and business process outsourcing organization that envisioned and instigated the adoption of the flexible business…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Bookers Group	Exact match	Helsinki, FinlandHQ recorded Nov 5, 2026	51-200	195 contacts →
	Exact match “Bookers Group Oy on suomalainen myyntipalveluihin erikoistunut konserni, jonka toimipaikat sijaitsevat Helsingissä ja Kuopiossa.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Zaphyre	Exact match	Fairfax, VA, United StatesHQ recorded Nov 5, 2026	51-200	190 contacts →
	Exact match “Zaphyre is a U.S-based Execution Service Partner (ESP) specializing in Sales Lead Generation, outbound pipeline development, AI Signal Engine systems, and embedded growth…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Sucesso EM Vendas	Exact match	Curitiba, BrazilHQ recorded Nov 5, 2026	51-200	188 contacts →
	Exact match “Há mais de 34 anos, ajudando empresas a alcançarem o verdadeiro Sucesso em Vendas.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Railcom	Exact match	Buenos Aires, ArgentinaHQ recorded Nov 5, 2026	201-500	179 contacts →
	Exact match “Railcom es un líder en la provisión de soluciones de outsourcing de ventas, especializándose en el mercado financiero.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	KEY Solutions	Exact match	Järfälla, SwedenHQ recorded Nov 5, 2026	201-500	168 contacts →
	Exact match “Key Solutions är idag en av Nordens ledande aktörer inom professionell försäljningsutveckling och outsourcad säljkraft.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Chameleon Group, LLC	Exact match	Dover, NH, United StatesHQ recorded Nov 5, 2026	n/a	163 contacts →
	Exact match “Chameleon Group is a leading provider of outsourced business development and sales services, delivering customizable business-to-business, channel, call center and direct sales…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Reveneer	Exact match	Burlington, MA, United StatesHQ recorded Nov 5, 2026	201-500	162 contacts →
	Exact match “Reveneer has a proven, precisely engineered process for exceptional inside sales results-and we're passionate about using it to solve our customers' sales challenges.” Recorded in the RevenueBase company graph · Nov 5, 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 “inside sales consultancies”. 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 11,727 inside sales consultancies worldwide

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Inside sales consultancies worldwide at a glance

As of Nov 5, 2026

15.5%Verified-email coverage

5.9Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

9,142

11-50

1,978

51-200

447

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

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 inside sales consultancies are linked below.
What qualifies: Company records worldwide whose business descriptions match “inside sales consultancies” 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 10,792 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 November 5, 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.

Inside sales consultancies by location

64 lists · largest first

Every Inside sales consultancies 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 “inside sales consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many inside sales consultancies are there worldwide?

RevenueBase identified 11,727 company matches for inside sales consultancies worldwide as of November 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 inside sales consultancies?

The United States leads with 2,506 companies, followed by the United Kingdom (950) and Brazil (945). Every inside sales consultancies list by country and city is linked on this page.

Which city has the most inside sales consultancies?

London leads with 321 company records, followed by Sao Paulo (228) and Paris (128).

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 10,792 professional contacts with verified work emails tracked across these 11,727 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 November 5, 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.