Company lists · Data refreshed September 2026

Top 25 Customer service consulting companies based in the United States

Name: Customer service 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 19, 2026 6,220 companies tracked

RevenueBase identified 6,220 company matches for customer service consulting companies associated with the United States as of September 2026 and tracks 171,944 professional contacts across them, including 28,144 with verified work emails. New York is the largest hub.

This list covers company matches for customer service 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 19, 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 19, 2026 How this list was built

6,220Companies

171,944Contacts tracked

28,144Verified emails

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The 25 largest customer service consulting companies based in the United States

Ranked by team size

Top 25 of 6,220 company matches for customer service consulting companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	Alorica	Exact match	Irvine, CA, United StatesHQ recorded Sep 19, 2026	10001+	47,558 contacts →
	Exact match “We’re passionate about creating customers for life by designing experiences that elevate your brand.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Sitel Group	Exact match	Miami, FL, United StatesHQ recorded Sep 19, 2026	10001+	35,365 contacts →
	Exact match “Foundever™ is a global leader in the customer experience (CX) industry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Slalom	Exact match	Seattle, WA, United StatesHQ recorded Sep 19, 2026	10001+	10,032 contacts →
	Exact match “Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Everise	Exact match	Plantation, FL, United StatesHQ recorded Sep 19, 2026	10001+	5,863 contacts →
	Exact match “Everise delivers happiness to millions of customers around the world.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Qualfon	Exact match	Highland Park, MI, United StatesHQ recorded Sep 19, 2026	10001+	5,840 contacts →
	Exact match “Qualfon provides 360 degrees of customer experience support for your business with mission-driven processes that keep each person at the heart of every interaction.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Fusion CX	Exact match	Norcross, GA, United StatesHQ recorded Sep 19, 2026	10001+	4,785 contacts →
	Exact match “At Fusion CX, we revolutionize customer experience by blending innovative technology and human connection.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Harte Hanks	Exact match	Chelmsford, MA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	3,901 contacts →
	Exact match “We are The Customer Company®, a global leader in Customer Experience (CX), Omnichannel Marketing, Data Services, Customer Care, Fulfillment, and Logistics.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Advanced Call Center Technologies, LLC	Exact match	Berwyn, PA, United StatesHQ recorded Sep 19, 2026	5,001-10,000	2,774 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Op360 Officepartners360	Exact match	Ridgefield, CT, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,777 contacts →
	Exact match “OP360, part of iQor CXBPO™, is a trusted partner in intelligent customer experience solutions for global brands.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Argano	Exact match	Plano, TX, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,603 contacts →
	Exact match “Argano is the world’s first and largest digital services consultancy focused exclusively on enabling high performance across our clients’ business operations, at scale and around…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	RDI Corporation	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,484 contacts →
	Exact match “At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Awesome CX	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,395 contacts →
	Exact match “Awesome OS specializes in high-touch customer experience for hyper-growth internet and eCommerce companies.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Servion Global Solutions	Exact match	Princeton, NJ, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,250 contacts →
	Exact match “Servion is a CX Consulting and global systems integrator (SI) headquartered in the United States, with over three decades in customer experience (CX) transformation.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	W3global	Exact match	Frisco, TX, United StatesHQ recorded Sep 19, 2026	501-1,000	1,149 contacts →
	Exact match “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Sequential Technology International	Exact match	Bethlehem, United StatesHQ recorded Sep 19, 2026	1,001-5,000	758 contacts →
	Exact match “Sequential Tech is the trusted outsource partner of wireline/wireless telecommunication, broadband, cable/MSO, and satellite service providers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Talentpop	Exact match	Costa Mesa, CA, United StatesHQ recorded Sep 19, 2026	501-1,000	747 contacts →
	Exact match “TalentPop is a leading Customer Service Management Agency that works with over 500 fast-growing E-Commerce brands to revolutionize their customer service and turn customer service…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Clearsource BPO	Exact match	Sandy, UT, United StatesHQ recorded Sep 19, 2026	1,001-5,000	708 contacts →
	Exact match “ClearSource at its core is a customer experience company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Prophet	Exact match	San Francisco, CA, United StatesHQ recorded Sep 19, 2026	501-1,000	661 contacts →
	Exact match “Prophet is the Uncommon Growth Company-accelerating impact for business and marketing leaders through consulting, experience, and creative services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	SEI	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 19, 2026	501-1,000	618 contacts →
	Exact match “SEI is a management consulting firm delivering fresh perspectives and reliable results.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Global Contact Services GCS	Exact match	Salisbury, NC, United StatesHQ recorded Sep 19, 2026	501-1,000	542 contacts →
	Exact match “We are customer service experts.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	American Customer Care	Exact match	Bristol, CT, United StatesHQ recorded Sep 19, 2026	1,001-5,000	513 contacts →
	Exact match “American Customer Care specializes in providing individualized contact with your customers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Logic, Part Of Accenture	Exact match	Bloomington, MN, United StatesHQ recorded Sep 19, 2026	1,001-5,000	496 contacts →
	Exact match “Logic works with the world’s leading retailers to help them move faster, innovate smarter, and thrive in the face of retail disruption.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Onesupport	Exact match	San Marcos, TX, United StatesHQ recorded Sep 19, 2026	1,001-5,000	475 contacts →
	Exact match “OneSupport is a leading provider of customer experience, technical support, and sales enablement solutions for technology products and services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Sendero	Exact match	Dallas, TX, United StatesHQ recorded Sep 19, 2026	201-500	420 contacts →
	Exact match “Sendero is a management consulting firm that optimizes technology, improves operations, advances workforce productivity, and enhances customer experience-all to deliver tangible…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Simplus	Exact match	Salt Lake City, UT, United StatesHQ recorded Sep 19, 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 19, 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 “customer service 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 6,220 customer service consulting companies based in the United States

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Customer service consulting companies based in the United States at a glance

As of Sep 19, 2026

16.4%Verified-email coverage

27.6Average contacts per company

1-10Median size (employees)

4.0%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

4,637

11-50

1,125

51-200

282

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 6,220 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 “customer service 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 28,144 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 19, 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.

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

How many customer service consulting companies are there based in the United States?

RevenueBase identified 6,220 company matches for customer service 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?

Alorica tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most customer service consulting companies?

New York leads with 249 company records, followed by Chicago (148) and Atlanta (143).

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 28,144 professional contacts with verified work emails tracked across these 6,220 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 19, 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.