Company lists · Data refreshed September 2026

Top 25 Inside sales consulting companies based in the United States

Name: Inside sales consulting companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 4,423 companies tracked

RevenueBase identified 4,423 company matches for inside sales consulting companies associated with the United States as of September 2026 and tracks 37,569 professional contacts across them, including 7,014 with verified work emails. New York is the largest hub.

This list covers company matches for inside sales consulting companies associated with the United States, 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 28, 2026.

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 28, 2026 How this list was built

4,423Companies

37,569Contacts tracked

7,014Verified emails

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The 25 largest inside sales consulting companies based in the United States

Ranked by team size

Top 25 of 4,423 company matches for inside sales consulting companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 28, 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 28, 2026 · View company records in RevenueBase
2	Marketstar	Exact match	Ogden, UT, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
3	Abstrakt Marketing Group	Exact match	St. Louis, MO, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4	Infinity	Exact match	Cedar Rapids, IA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5	Saleshive	Exact match	Denver, CO, United StatesHQ recorded Sep 28, 2026	51-200	455 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Simplus	Exact match	Salt Lake City, UT, United StatesHQ recorded Sep 28, 2026	501-1,000	374 contacts →
	Exact match “We will meet clients where they are on their Salesforce journey, accelerating time to value through our advisory-led, industry-focused, and partner-aligned approach to…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Miller Heiman Group, A Korn Ferry Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	501-1,000	371 contacts →
	Exact match “Miller Heiman Group is now part of Korn Ferry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Jumpcrew	Exact match	Nashville, TN, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
9	Calltend INC	Exact match	Los Angeles, TX, United StatesHQ recorded Sep 28, 2026	51-200	289 contacts →
	Exact match “Current Vertical Focus: Real Estate - Lead Generation, Lead Conversion, Lead Qualification, Agent Recruiting Mortgage - Lead Conversion, Lead Qualification Insurance - Lead…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Sales Xceleration	Exact match	Fishers, IN, United StatesHQ recorded Sep 28, 2026	51-200	268 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 · Sep 28, 2026 · View company records in RevenueBase
11	Expertcallers	Exact match	Princeton, NJ, United StatesHQ recorded Sep 28, 2026	501-1,000	264 contacts →
	Exact match “ExpertCallers (a division of Flatworld Solutions) is a global consulting and outsourcing company, with a wealth of experience in providing operational and strategic excellence to…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Rocket Connections	Exact match	Detroit, MI, United StatesHQ recorded Sep 28, 2026	1,001-5,000	247 contacts →
	Exact match “Rocket Connections is a sales and support platform specializing in contact center services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Corporate Visions	Exact match	Mesa, AZ, United StatesHQ recorded Sep 28, 2026	51-200	239 contacts →
	Exact match “Corporate Visions is the leading provider of evidence-based sales training, messaging, and revenue enablement solutions for B2B companies around the globe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Marketjoy, INC	Exact match	Pensacola, FL, United StatesHQ recorded Sep 28, 2026	51-200	223 contacts →
	Exact match “Founded in 2016 and headquartered in Pensacola, Florida, MarketJoy is a B2B lead generation, appointment generation and sales development partner built to deliver predictable…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Squeeze	Exact match	Orem, United StatesHQ recorded Sep 28, 2026	501-1,000	217 contacts →
	Exact match “Squeeze (GoSqueeze.com) is the leader in Sales Experience (SX).” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Growth ERA	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 28, 2026	51-200	217 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 · Sep 28, 2026 · View company records in RevenueBase
17	Southwestern Consulting	Exact match	Nashville, TN, United StatesHQ recorded Sep 28, 2026	51-200	212 contacts →
	Exact match “At Southwestern Consulting, we elevate the practice and perception of sales.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Sales Focus INC	Exact match	North Charleston, SC, United StatesHQ recorded Sep 28, 2026	201-500	198 contacts →
	Exact match “Sales Focus Inc.(SFI) pioneered the sales outsourcing industry in 1998.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Redcloud Consulting	Exact match	Bellevue, WA, United StatesHQ recorded Sep 28, 2026	201-500	188 contacts →
	Exact match “RedCloud is a business and technology consulting firm providing local companies with expert-level support for over two decades.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Salaria Sales Solutions	Exact match	Washington D.c., WA, United StatesHQ recorded Sep 28, 2026	51-200	188 contacts →
	Exact match “Salaria Sales Solutions is a B2B lead generation and sales development agency.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Concept Services	Exact match	Copley, OH, United StatesHQ recorded Sep 28, 2026	51-200	185 contacts →
	Exact match “Concept develops and implements comprehensive B2B lead generation and sales development solutions for companies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Reveneer	Exact match	Burlington, MA, United StatesHQ recorded Sep 28, 2026	201-500	177 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 · Sep 28, 2026 · View company records in RevenueBase
23	Alleyoop	Exact match	Buffalo, NY, United StatesHQ recorded Sep 28, 2026	51-200	175 contacts →
	Exact match “We help companies maximize ROI through lead generation, relationship management, and event support.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Zaphyre	Exact match	Fairfax, VA, United StatesHQ recorded Sep 28, 2026	51-200	167 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 · Sep 28, 2026 · View company records in RevenueBase
25	Chameleon Group, LLC	Exact match	Dover, NH, United StatesHQ recorded Sep 28, 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 · Sep 28, 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 consulting companies”. 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 4,423 inside sales consulting companies based in the United States

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Inside sales consulting companies based in the United States at a glance

As of Sep 28, 2026

18.7%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

3.9%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,282

11-50

874

51-200

193

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 4,423 companies.

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.
What qualifies: Company records associated with the United States whose business descriptions match “inside sales consulting companies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 7,014 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 28, 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 consulting companies by metro

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 consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many inside sales consulting companies are there based in the United States?

RevenueBase identified 4,423 company matches for inside sales consulting companies associated with the United States 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 city has the most inside sales consulting companies?

New York leads with 174 company records, followed by Austin (103) and Chicago (101).

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 7,014 professional contacts with verified work emails tracked across these 4,423 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 28, 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.