Company lists · Data refreshed September 2026

Top 25 Telesales companies based in the United States

Name: Telesales 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 22, 2026 1,821 companies tracked

RevenueBase identified 1,821 telesales companies headquartered in the United States as of September 2026 and tracks 34,110 professional contacts across them, including 3,236 with verified work emails. New York is the largest hub.

This list covers telesales companies headquartered in the United States, 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 22, 2026.

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 22, 2026 86% judged on-target in blind review

1,821Companies

34,110Contacts tracked

3,236Verified emails

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The 25 largest telesales companies based in the United States

Ranked by team size

Top 25 of 1,821 telesales companies based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to telesales companies: 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	Advanced Call Center Technologies, LLC	Indirect evidence	Berwyn, PA, United StatesHQ checked Sep 22, 2026	5,001-10,000	2,774 contacts →
	Indirect evidence “Advanced Call Center Technologies, LLC (ACT) is a premier provider of domestic (USA), near shore and far shore outsourced call center services to the financial services, mortgage…” Source: RevenueBase Database · checked Sep 22, 2026
2	Inktel Contact Center Solutions	Indirect evidence	Doral, FL, United StatesHQ checked Sep 22, 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 22, 2026
3	Answernet	Indirect evidence	Horsham, PA, United StatesHQ checked Sep 22, 2026	501-1,000	883 contacts →
	Indirect evidence “If you are interested in growing your business or increasing efficiency, AnswerNet has the expertise, technology, and people to help you take your company to new heights!” Source: RevenueBase Database · checked Sep 22, 2026
4	Salebuild	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 22, 2026	n/a	708 contacts →
	Indirect evidence “Salesify, a leading provider of B2B demand generation services, helps our clients create pipeline and accelerate revenue by identifying, profiling, nurturing and connecting with…” Source: RevenueBase Database · checked Sep 22, 2026
5	Movingdneedle Pvt. LTD	Indirect evidence	Sterling Heights, MI, United StatesHQ checked Sep 22, 2026	51-200	528 contacts →
	Indirect 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 22, 2026
6	Saleshive	Indirect evidence	Denver, CO, United StatesHQ checked Sep 22, 2026	51-200	455 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
7	Alliance Pdms	Indirect evidence	Hurst, TX, United StatesHQ checked Sep 22, 2026	51-200	428 contacts →
	Indirect evidence “Alliance is a domestically operated, internationally recognized professional contact center specializing in lead generation and appointment setting.” Source: RevenueBase Database · checked Sep 22, 2026
8	Touchstone Communications	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 22, 2026	501-1,000	393 contacts →
	Indirect evidence “Touchstone Communications was built in 2002 on the philosophy of hiring educated, motivated talent and then providing them with the best training and management to achieve our…” Source: RevenueBase Database · checked Sep 22, 2026
9	Beyond Codes INC	Indirect evidence	Simi Valley, CA, United StatesHQ checked Sep 22, 2026	201-500	380 contacts →
	Indirect evidence “Beyond Codes is a global B2B lead generation and appointment-setting agency trusted by some of the world's leading technology companies to build enterprise sales pipeline.” Source: RevenueBase Database · checked Sep 22, 2026
10	EBQ	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	201-500	377 contacts →
	Indirect evidence “EBQ is an outsourced sales and marketing organization that provides services to help companies scale.” Source: RevenueBase Database · checked Sep 22, 2026
11	The Connection Contact Center	Indirect evidence	Bloomington, MN, United StatesHQ checked Sep 22, 2026	1,001-5,000	354 contacts →
	Indirect evidence “For over 35 years, The Connection has made a name for ourselves becoming one of the top industry partners to Fortune 500 companies looking to outsource their contact center…” Source: RevenueBase Database · checked Sep 22, 2026
12	By Appointment Only, Inc. BAO	Indirect evidence	Chelmsford, MA, United StatesHQ checked Sep 22, 2026	201-500	291 contacts →
	Indirect evidence “The market knows us as the leader in appointment setting.” Source: RevenueBase Database · checked Sep 22, 2026
13	Calltend INC	Indirect evidence	Los Angeles, TX, United StatesHQ checked Sep 22, 2026	51-200	289 contacts →
	Indirect evidence “Current Vertical Focus: Real Estate - Lead Generation, Lead Conversion, Lead Qualification, Agent Recruiting Mortgage - Lead Conversion, Lead Qualification Insurance - Lead…” Source: RevenueBase Database · checked Sep 22, 2026
14	Boomsourcing	Indirect evidence	Lehi, UT, United StatesHQ checked Sep 22, 2026	501-1,000	256 contacts →
	Indirect evidence “Boomsourcing (A Fusion CX Company) is a call center established in 2007.” Source: RevenueBase Database · checked Sep 22, 2026
15	Rocket Connections	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 22, 2026	1,001-5,000	247 contacts →
	Indirect evidence “Rocket Connections is a sales and support platform specializing in contact center services.” Source: RevenueBase Database · checked Sep 22, 2026
16	Marketjoy, INC	Indirect evidence	Pensacola, FL, United StatesHQ checked Sep 22, 2026	51-200	223 contacts →
	Indirect evidence “Founded in 2016 and headquartered in Pensacola, Florida, MarketJoy is a B2B lead generation, appointment generation and sales development partner built to deliver predictable…” Source: RevenueBase Database · checked Sep 22, 2026
17	Anomaly Squared	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 22, 2026	201-500	216 contacts →
	Indirect evidence “Schedule your FREE Consultation here: http://bit.ly/2gUckQb Anomaly Squared is a contact center services provider.” Source: RevenueBase Database · checked Sep 22, 2026
18	Belkins INC	Indirect evidence	Dover, DE, United StatesHQ checked Sep 22, 2026	201-500	209 contacts →
	Indirect evidence “Belkins is the #1 ranked appointment-setting agency in the USA for 5 years in a row, driving results for businesses in 50+ industries across the globe.” Source: RevenueBase Database · checked Sep 22, 2026
19	Quantum 3 Media	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 22, 2026	51-200	204 contacts →
	Indirect evidence “Quantum 3 Media is one of the fastest growing organizations within the customer acquisition, lead generation/Pay per call within all verticals of insurance and education, contact…” Source: RevenueBase Database · checked Sep 22, 2026
20	Signia	Indirect evidence	Westminster, CO, United StatesHQ checked Sep 22, 2026	201-500	181 contacts →
	Indirect evidence “Signia aims to provide marketing services to targeted business environments in the US.” Source: RevenueBase Database · checked Sep 22, 2026
21	Gold Mountain Communications	Indirect evidence	Springfield, MO, United StatesHQ checked Sep 22, 2026	201-500	180 contacts →
	Indirect evidence “Gold Mountain Communications is a US-based live operator inbound/outbound call center and service agency helping leading national corporations outsource their customer service and…” Source: RevenueBase Database · checked Sep 22, 2026
22	Alleyoop	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 22, 2026	51-200	175 contacts →
	Indirect evidence “We help companies maximize ROI through lead generation, relationship management, and event support.” Source: RevenueBase Database · checked Sep 22, 2026
23	Demandzen	Indirect evidence	Remote, United StatesHQ checked Sep 22, 2026	51-200	174 contacts →
	Indirect evidence “We provide outsourced demand generation for companies looking to aggressively expand their revenue opportunities.” Source: RevenueBase Database · checked Sep 22, 2026
24	Callsexperts	Indirect evidence	New York, United StatesHQ checked Sep 22, 2026	501-1,000	173 contacts →
	Indirect evidence “Calls Experts is a global contact center solution provider.” Source: RevenueBase Database · checked Sep 22, 2026
25	Chameleon Group, LLC	Indirect evidence	Dover, NH, United StatesHQ checked Sep 22, 2026	n/a	163 contacts →
	Indirect evidence “Chameleon Group is a leading provider of outsourced business development and sales services, delivering customizable business-to-business, channel, call center and direct sales…” Source: RevenueBase Database · checked Sep 22, 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: telesales companies. 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 telesales companies.
Partial evidence: Its own public description names part of telesales companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telesales companies. 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 1,821 telesales companies based in the United States

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Telesales companies based in the United States at a glance

As of Sep 22, 2026

9.5%Verified-email coverage

18.7Average contacts per company

11-50Median size (employees)

3.8%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

627

11-50

677

51-200

356

201-500

112

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 1,821 companies.

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 telesales companies, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “telesales companies”. 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 telesales companies), 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 telesales companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 3,236 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 22, 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.

Telesales companies by metro

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 telesales companies, 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 telesales companies are there based in the United States?

RevenueBase identified 1,821 telesales companies headquartered in the United States 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?

Advanced Call Center Technologies, LLC, headquartered in Berwyn, tops this list with the largest team on record.

Which city has the most telesales companies?

New York leads with 69 headquartered companies, followed by Sheridan (49) and Los Angeles (47).

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 3,236 verified decision-maker contacts tracked across these 1,821 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 22, 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.