Company lists · Data refreshed September 2026
Top 25 Customer service consulting companies based in the United States
RevenueBase identified 6,220 customer service consulting companies headquartered in 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 customer service consulting 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 19, 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.
The 25 largest customer service consulting companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 47,558 contacts → | ||||
Partial evidence “We’re passionate about creating customers for life by designing experiences that elevate your brand.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 35,365 contacts → | ||||
Partial evidence “Foundever™ is a global leader in the customer experience (CX) industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 10,032 contacts → | ||||
Partial evidence “Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 5,863 contacts → | ||||
Partial evidence “Everise delivers happiness to millions of customers around the world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 5,840 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 4,785 contacts → | ||||
Partial evidence “At Fusion CX, we revolutionize customer experience by blending innovative technology and human connection.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 3,901 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,777 contacts → | ||||
Partial evidence “OP360, part of iQor CXBPO™, is a trusted partner in intelligent customer experience solutions for global brands.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,603 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,484 contacts → | ||||
Partial evidence “At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,395 contacts → | ||||
Partial evidence “Awesome OS specializes in high-touch customer experience for hyper-growth internet and eCommerce companies.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1,250 contacts → | ||||
Strong evidence “Servion is a CX Consulting and global systems integrator (SI) headquartered in the United States, with over three decades in customer experience (CX) transformation.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1,149 contacts → | ||||
Partial evidence “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 758 contacts → | ||||
Indirect evidence “Sequential Tech is the trusted outsource partner of wireline/wireless telecommunication, broadband, cable/MSO, and satellite service providers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 747 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 708 contacts → | ||||
Partial evidence “ClearSource at its core is a customer experience company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 661 contacts → | ||||
Partial evidence “Prophet is the Uncommon Growth Company-accelerating impact for business and marketing leaders through consulting, experience, and creative services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 618 contacts → | ||||
Partial evidence “SEI is a management consulting firm delivering fresh perspectives and reliable results.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 542 contacts → | ||||
Partial evidence “We are customer service experts.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 513 contacts → | ||||
Partial evidence “American Customer Care specializes in providing individualized contact with your customers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 496 contacts → | ||||
Indirect evidence “Logic works with the world’s leading retailers to help them move faster, innovate smarter, and thrive in the face of retail disruption.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 475 contacts → | ||||
Partial evidence “OneSupport is a leading provider of customer experience, technical support, and sales enablement solutions for technology products and services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 420 contacts → | ||||
Strong evidence “Sendero is a management consulting firm that optimizes technology, improves operations, advances workforce productivity, and enhances customer experience-all to deliver tangible…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 374 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: customer service consulting 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 customer service consulting companies.
- Partial evidence
- Its own public description names part of customer service consulting companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name customer service consulting 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 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, 2026Companies by employee count
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
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among customer service consulting 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 service consulting 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 service consulting 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 service consulting 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, 28,144 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 19, 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.
Customer service consulting companies by metro
- Customer service consulting companies in New York227
- Customer service consulting companies in Chicago148
- Customer service consulting companies in Atlanta143
- Customer service consulting companies in Houston137
- Customer service consulting companies in Los Angeles117
- Customer service consulting companies in Dallas107
- Customer service consulting companies in Miami87
- Customer service consulting companies in Austin80
- Customer service consulting companies in Denver76
- Customer service consulting companies in San Francisco76
- Customer service consulting companies in Boston72
- Customer service consulting companies in Washington64
- Customer service consulting companies in Seattle62
- Customer service consulting companies in Minneapolis60
- Customer service consulting companies in Orlando59
- Customer service consulting companies in Phoenix57
- Customer service consulting companies in Charlotte55
- Customer service consulting companies in Tampa52
- Customer service consulting companies in San Diego50
- Customer service consulting companies in Cincinnati38
- Customer service consulting companies in Philadelphia38
- Customer service consulting companies in San Antonio38
- Customer service consulting companies in Scottsdale38
- Customer service consulting companies in Las Vegas37
- Customer service consulting companies in Columbus33
- Customer service consulting companies in Raleigh30
- Customer service consulting companies in Portland29
- Customer service consulting companies in Salt Lake City27
- Customer service consulting companies in Fort Lauderdale26
- Customer service consulting companies in Wilmington26
- Customer service consulting companies in Baltimore25
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 service consulting 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 service consulting companies are there based in the United States?
RevenueBase identified 6,220 customer service consulting 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?
Alorica, headquartered in Irvine, tops this list with the largest team on record.
Which city has the most customer service consulting companies?
New York leads with 227 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 28,144 verified decision-maker contacts tracked across these 6,220 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 19, 2026.
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Customer service consulting companies by geography
- Customer service consulting companies based in Brisbane, Australia
- Customer service consulting companies based in Melbourne, Australia
- Customer service consulting companies based in Sydney, Australia
- Customer service consulting companies based in Barueri, Brazil
- Customer service consulting companies based in Belo Horizonte, Brazil
- Customer service consulting companies based in Campinas, Brazil
- Customer service consulting companies based in Curitiba, Brazil
- Customer service consulting companies based in Porto Alegre, Brazil
- Customer service consulting companies based in Rio De Janeiro, Brazil
- Customer service consulting companies based in Sao Paulo, Brazil
- Customer service consulting companies based in Calgary, Canada
- Customer service consulting companies based in Montreal, Canada
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.
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