Company lists · Data refreshed September 2026

Top 25 Contact center outsourcing service providers based in the United States

Name: Contact center outsourcing service providers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 1,936 companies tracked

RevenueBase identified 1,936 contact center outsourcing service providers headquartered in the United States as of September 2026 and tracks 287,109 professional contacts across them, including 30,929 with verified work emails. New York is the largest hub.

This list covers contact center outsourcing service providers 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 14, 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 14, 2026 86% judged on-target in blind review

1,936Companies

287,109Contacts tracked

30,929Verified emails

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The 25 largest contact center outsourcing service providers based in the United States

Ranked by team size

Top 25 of 1,936 contact center outsourcing service providers based in the United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to contact center outsourcing service providers: 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	Alorica	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 14, 2026	10001+	47,558 contacts →
	Indirect evidence “We’re passionate about creating customers for life by designing experiences that elevate your brand.” Source: RevenueBase Database · checked Sep 14, 2026
2	Foundever	Indirect evidence	Miami, FL, United StatesHQ checked Sep 14, 2026	10001+	30,990 contacts →
	Indirect evidence “Foundever® is the next-generation service leader reinventing customer experience (CX).” Source: RevenueBase Database · checked Sep 14, 2026
3	TTEC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 14, 2026	10001+	26,420 contacts →
	Indirect evidence “We’re TTEC (pronounced t.tec).” Source: RevenueBase Database · checked Sep 14, 2026
4	IBEX	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	10001+	15,457 contacts →
	Partial evidence “ibex delivers innovative business process outsourcing (BPO), smart digital marketing, online acquisition technology, and end-to-end customer engagement solutions to help companies…” Source: RevenueBase Database · checked Sep 14, 2026
5	VXI Global Solutions	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	10001+	14,238 contacts →
	Indirect evidence “About VXI Global Solutions VXI Global Solutions is a BPO leader in customer service, customer experience, and digital solutions.” Source: RevenueBase Database · checked Sep 14, 2026
6	Everise	Indirect evidence	Plantation, FL, United StatesHQ checked Sep 14, 2026	10001+	5,863 contacts →
	Indirect evidence “Everise delivers happiness to millions of customers around the world.” Source: RevenueBase Database · checked Sep 14, 2026
7	Afni, INC	Strong evidence	Bloomington, IL, United StatesHQ checked Sep 14, 2026	10001+	5,553 contacts →
	Strong evidence “When people reach for their phones, use laptops, or grab their tablets, Afni's contact center teams are there to provide prompt and friendly help.” Source: RevenueBase Database · checked Sep 14, 2026
8	Fusion CX	Indirect evidence	Norcross, GA, United StatesHQ checked Sep 14, 2026	10001+	4,785 contacts →
	Indirect evidence “At Fusion CX, we revolutionize customer experience by blending innovative technology and human connection.” Source: RevenueBase Database · checked Sep 14, 2026
9	Call Center Services International	Strong evidence	San Diego, CA, United StatesHQ checked Sep 14, 2026	1,001-5,000	4,561 contacts →
	Strong evidence “CCSI specializes in high‑performance, cost‑efficient contact center solutions supported by a world‑class bilingual workforce and state‑of‑the‑art infrastructure in Mexico.” Source: RevenueBase Database · checked Sep 14, 2026
10	Continuum Global Solutions	Strong evidence	Dallas, TX, United StatesHQ checked Sep 14, 2026	5,001-10,000	4,342 contacts →
	Strong evidence “With a fresh name and decades of contact center expertise, we’re dedicated to collaborative partnerships, understanding your unique needs, and tailoring solutions for an enhanced…” Source: RevenueBase Database · checked Sep 14, 2026
11	Harte Hanks	Indirect evidence	Chelmsford, MA, United StatesHQ checked Sep 14, 2026	1,001-5,000	3,901 contacts →
	Indirect evidence “We are The Customer Company®, a global leader in Customer Experience (CX), Omnichannel Marketing, Data Services, Customer Care, Fulfillment, and Logistics.” Source: RevenueBase Database · checked Sep 14, 2026
12	Telvista	Partial evidence	Dallas, TX, United StatesHQ checked Sep 14, 2026	1,001-5,000	3,122 contacts →
	Partial evidence “Email: info@Telvista.com Telvista is a premier provider of contact solutions that drive customer loyalty and create competitive advantage for our clients.” Source: RevenueBase Database · checked Sep 14, 2026
13	Etech Global Services	Indirect evidence	Nacogdoches, TX, United StatesHQ checked Sep 14, 2026	1,001-5,000	2,964 contacts →
	Indirect evidence “Etech Global Services delivers customer experience solutions and proprietary AI technology to Fortune 500 companies across telecommunications, healthcare, financial services, and…” Source: RevenueBase Database · checked Sep 14, 2026
14	Advanced Call Center Technologies, LLC	Partial evidence	Berwyn, PA, United StatesHQ checked Sep 14, 2026	5,001-10,000	2,774 contacts →
	Partial 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 14, 2026
15	Stream Global Services	Indirect evidence	Eagan, MN, United StatesHQ checked Sep 14, 2026	10001+	2,772 contacts →
	Indirect evidence “Stream Global Services is a premium business process outsource (BPO) service provider specializing in customer relationship management solutions including sales, customer care…” Source: RevenueBase Database · checked Sep 14, 2026
16	Alta Resources	Indirect evidence	Neenah, WI, United StatesHQ checked Sep 14, 2026	1,001-5,000	2,046 contacts →
	Indirect evidence “Alta Resources has always worked to be something different.” Source: RevenueBase Database · checked Sep 14, 2026
17	Liveops, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 14, 2026	n/a	2,026 contacts →
	Indirect evidence “Human-Led, Tech-Powered Customer Service For over 25 years, Liveops has redefined customer support by combining technology with real human connection.” Source: RevenueBase Database · checked Sep 14, 2026
18	Infocision Management Corporation	Strong evidence	Akron, OH, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,764 contacts →
	Strong evidence “InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.” Source: RevenueBase Database · checked Sep 14, 2026
19	Km2 Solutions	Partial evidence	Boca Raton, FL, United StatesHQ checked Sep 14, 2026	5,001-10,000	1,741 contacts →
	Partial evidence “Award-winning outsourcing partner with two decades of experience operating an exclusively nearshore strategy that delivers better performance, close to home, and at a lower cost.” Source: RevenueBase Database · checked Sep 14, 2026
20	Supportninja	Indirect evidence	Austin, TX, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,711 contacts →
	Indirect evidence “SupportNinja provides customer experience and back-office support services for tech companies and startups around the world.” Source: RevenueBase Database · checked Sep 14, 2026
21	Support Services Group	Partial evidence	Waco, TX, United StatesHQ checked Sep 14, 2026	5,001-10,000	1,710 contacts →
	Partial evidence “Support Services Group (SSG) helps businesses accelerate growth and earn customers for life through high-touch, outsourced engagement center services.” Source: RevenueBase Database · checked Sep 14, 2026
22	Percepta	Partial evidence	Allen Park, MI, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,568 contacts →
	Partial evidence “Percepta is a global customer relationship organization that manages all forms of contact with our clients’ customers, prospective customers, suppliers and distribution networks.” Source: RevenueBase Database · checked Sep 14, 2026
23	Dialamerica	Indirect evidence	Mahwah, NJ, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,536 contacts →
	Indirect evidence “DialAmerica is now Aucera.” Source: RevenueBase Database · checked Sep 14, 2026
24	RDI Corporation	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,484 contacts →
	Indirect evidence “At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.” Source: RevenueBase Database · checked Sep 14, 2026
25	Datamark, INC	Strong evidence	El Paso, TX, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,418 contacts →
	Strong evidence “DATAMARK Inc, a provider of omni-channel contact centers and business process outsourcing (BPO) services since 1989, employs more than at our facilities in the United States…” Source: RevenueBase Database · checked Sep 14, 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: contact center outsourcing service providers. 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 contact center outsourcing service providers.
Partial evidence: Its own public description names part of contact center outsourcing service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name contact center outsourcing service providers. 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 1,936 contact center outsourcing service providers based in the United States

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Contact center outsourcing service providers based in the United States at a glance

As of Sep 14, 2026

10.8%Verified-email coverage

148.3Average contacts per company

51-200Median size (employees)

3.4%Largest-city concentration · New York

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

382

11-50

552

51-200

514

201-500

218

501-1,000

104

1,001-5,000

124

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 1,936 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 contact center outsourcing service providers, 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 “contact center outsourcing service providers”. 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 contact center outsourcing service providers), 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 contact center outsourcing service providers, 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, 30,929 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 14, 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.

Contact center outsourcing service providers by metro

Contact center outsourcing service providers in New York66
Contact center outsourcing service providers in Miami55
Contact center outsourcing service providers in Austin39
Contact center outsourcing service providers in Houston38
Contact center outsourcing service providers in Atlanta35
Contact center outsourcing service providers in Sheridan33
Contact center outsourcing service providers in Los Angeles30
Contact center outsourcing service providers in Chicago29
Contact center outsourcing service providers in Dallas28
Contact center outsourcing service providers in Phoenix27

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 contact center outsourcing service providers, 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 contact center outsourcing service providers are there based in the United States?

RevenueBase identified 1,936 contact center outsourcing service providers 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?

Alorica, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most contact center outsourcing service providers?

New York leads with 66 headquartered companies, followed by Miami (55) and Austin (39).

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 30,929 verified decision-maker contacts tracked across these 1,936 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 14, 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.