Company lists · Data refreshed September 2026

Top 25 Customer retention outsourcing companies based in the United States

RevenueBase identified 106 customer retention outsourcing companies headquartered in the United States as of September 2026 and tracks 7,037 professional contacts across them, including 753 with verified work emails. New York is the largest hub.

This list covers customer retention outsourcing 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 28, 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 28, 2026 86% judged on-target in blind review
106Companies
7,037Contacts tracked
753Verified emails
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The 25 largest customer retention outsourcing companies based in the United States

Ranked by team size
Top 25 of 106 customer retention outsourcing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to customer retention outsourcing 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBerwyn, PA, United StatesHQ checked Sep 28, 20265,001-10,0002,774 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 28, 2026
2Partial evidenceWaco, TX, United StatesHQ checked Sep 28, 20265,001-10,0001,710 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 28, 2026
3Indirect evidenceDoral, FL, United StatesHQ checked Sep 28, 20261,001-5,000902 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 28, 2026
4Partial evidenceMaryland Heights, MO, United StatesHQ checked Sep 28, 2026201-500234 contacts →

Partial evidence

“Customer Direct, founded in 1997, empowers its clients to make better business decisions.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceWestminster, CO, United StatesHQ checked Sep 28, 2026201-500181 contacts →

Indirect evidence

“Signia aims to provide marketing services to targeted business environments in the US.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceFountain Valley, CA, United StatesHQ checked Sep 28, 2026201-500105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceSarasota, FL, United StatesHQ checked Sep 28, 2026201-50065 contacts →

Partial evidence

“At Yeetiq, We believe that your customers are our biggest assets and we see value in keeping them happy.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceLas Vegas, NV, United StatesHQ checked Sep 28, 202651-20043 contacts →

Partial evidence

“Turtle Peak is a Las Vegas–based customer experience and sales partner built for brands that refuse to leave revenue on the table.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceGilbert, AZ, United StatesHQ checked Sep 28, 202651-20033 contacts →

Partial evidence

“ARCSmart Solutions, LLC (headquartered in Gilbert, AZ) is a private, full-service marketing and customer support agency specializing in helping businesses acquire, retain, and…”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceHunt Valley, MD, United StatesHQ checked Sep 28, 202651-20032 contacts →

Indirect evidence

“We are a client-focused, people-centric call center located in Hunt Valley, Maryland.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceCincinnati, OH, United StatesHQ checked Sep 28, 202651-20029 contacts →

Partial evidence

“Lasting impressions are always made when a customer tries to phone you with questions or problems and you’re not available.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceAustin, TX, United StatesHQ checked Sep 28, 202651-20016 contacts →

Partial evidence

“We provide high value / high touch contact center services that include customer service, technical support, employee help desk, inbound and outbound sales and order management.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceMiami, FL, United StatesHQ checked Sep 28, 202611-5014 contacts →

Partial evidence

“RetentionX, is revolutionizing the way direct-to-consumer (DTC) brands use data and automation to drive growth.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidencePickerington, OH, United StatesHQ checked Sep 28, 202611-5012 contacts →

Indirect evidence

“With over 50 years of experience in Business Solutions, Novaserv brings with it expertise and creativity that makes us shine bright above all the others.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceAppleton, WI, United StatesHQ checked Sep 28, 202611-5010 contacts →

Partial evidence

“Retention Strategy for 7-9 figure eCom Brands | 30% increase in retention revenue in just 90 days guaranteed | Let's Chat 🤝”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

“Churn Buster maximizes recurring revenue for subscription businesses through expert passive and active churn reduction.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceNJ, United StatesHQ checked Sep 28, 202611-507 contacts →

Partial evidence

“As a leading retention agency, we strive to seamlessly integrate with your team, prioritizing your business needs above all else.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceWaukesha, WI, United StatesHQ checked Sep 28, 20261-106 contacts →

Partial evidence

“The re:member group has been turning satisfied customers into Customers for Life since 2002.”

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceCharlotte, NC, United StatesHQ checked Sep 28, 20261-105 contacts →

Strong evidence

“Customer Service Solutions (CSS) is a 1-stop-shop for your customer service and retention needs.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceMinneapolis, MN, United StatesHQ checked Sep 28, 202611-504 contacts →

Partial evidence

“B2C companies face unprecedented pressure to retain customers.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceBuffalo, NY, United StatesHQ checked Sep 28, 20261-104 contacts →

Partial evidence

“Since 2001, CCRG has helped clients grow their businesses, care for their customers, and get the sales and marketing resources they need.”

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidenceDenver, CO, United StatesHQ checked Sep 28, 20261-104 contacts →

Strong evidence

“MARKORS is a customer retention consultancy that helps businesses and membership programs optimize the customer journey and keep more of the customers they already have.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceScotts Valley, CA, United StatesHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“We make it easy for B2B companies to keep their fingers on the pulse of their customers and continually delight them.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceWestport, CT, United StatesHQ checked Sep 28, 202611-501 contacts →

Partial evidence

“True North Loyalty is 100% dedicated to helping our clients deliver exceptional and lasting loyalty from their customers, and monetize all their customer contact points on the…”

Source: RevenueBase Database · checked Sep 28, 2026
25Strong evidenceStamford, CT, United StatesHQ checked Sep 28, 20261-101 contacts →

Strong evidence

“I've helped B2B SaaS and information services companies: improve customer retention increase customer engagement expand product value proposition optimize products, services, and…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 106 customer retention outsourcing companies based in the United States

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Customer retention outsourcing companies based in the United States at a glance

As of Sep 28, 2026
10.7%Verified-email coverage
66.4Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
39
11-50
31
51-200
19
201-500
10
501-1,000
3
1,001-5,000
1
5,001-10,000
2

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 106 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 customer retention outsourcing 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 “customer retention outsourcing 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 customer retention outsourcing 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 customer retention outsourcing 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, 753 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 28, 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.

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 customer retention outsourcing 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 customer retention outsourcing companies are there based in the United States?

RevenueBase identified 106 customer retention outsourcing 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 customer retention outsourcing companies?

New York leads with 3 headquartered companies, followed by San Diego (3) and Austin (2).

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 753 verified decision-maker contacts tracked across these 106 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 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 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.