Company lists · Data refreshed September 2026

Top 25 Healthcare customer service outsourcing companies worldwide

Name: Healthcare customer service outsourcing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 5,429 companies tracked

RevenueBase identified 5,429 company matches for healthcare customer service outsourcing companies worldwide as of September 2026 and tracks 311,483 professional contacts across them, including 60,507 with verified work emails. The United States is the largest market and Lahore the largest hub.

This list covers company matches for healthcare customer service outsourcing companies worldwide, 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 28, 2026. Country and city lists for healthcare customer service outsourcing companies follow the table.

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 28, 2026 How this list was built

5,429Companies

311,483Contacts tracked

60,507Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest healthcare customer service outsourcing companies worldwide

Ranked by team size

Top 25 of 5,429 company matches for healthcare customer service outsourcing companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	OPTUM	Exact match	Eden Prairie, MN, United StatesHQ recorded Sep 28, 2026	10001+	78,937 contacts →
	Exact match “We’re evolving health care so everyone can have the opportunity to live their healthiest life.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Ienergizer	Exact match	Noida, IndiaHQ recorded Sep 28, 2026	10001+	14,745 contacts →
	Exact match “iEnergizer is a leading Business Process Outsourcing provider (“BPO”) of customer management solutions dedicated to delivering performance while actively supporting and advocating…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Sagility	Exact match	Westminster, CO, United StatesHQ recorded Sep 28, 2026	10001+	9,366 contacts →
	Exact match “Sagility is a U.S-based, tech-enabled healthcare business process management company that supports payers, providers, and their partners to deliver best-in-class operations…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Parallon	Exact match	Nashville, TN, United StatesHQ recorded Sep 28, 2026	10001+	5,984 contacts →
	Exact match “Parallon leverages extensive expertise across a broad portfolio of revenue cycle, contact center, and clinical and administrative shared services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Everise	Exact match	Plantation, FL, United StatesHQ recorded Sep 28, 2026	10001+	5,863 contacts →
	Exact match “Everise delivers happiness to millions of customers around the world.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Aramark Healthcare	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	10001+	4,136 contacts →
	Exact match “The healthcare industry is predicted to undergo more dynamic change in the next 20 years than it has in the past 100 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Raya CX	Exact match	Giza, EgyptHQ recorded Sep 28, 2026	5,001-10,000	3,989 contacts →
	Exact match “RAYA Customer Experience provides next-generation BPO and customer experience management on behalf of clients across various industries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	GSS Global Sales Solutions	Exact match	Madrid, SpainHQ recorded Sep 28, 2026	10001+	3,716 contacts →
	Exact match “is a tech company specialized in providing, and for.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	TSI	Exact match	Fort Washington, WA, United StatesHQ recorded Sep 28, 2026	10001+	3,677 contacts →
	Exact match “Transworld Systems Inc.(TSI) stands as the leading tech-driven provider in Accounts Receivable Management (ARM), Healthcare Revenue Cycle Management (RCM), Customer Experience…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Teleperformance Global Services	Exact match	Kolkata, IndiaHQ recorded Sep 28, 2026	1,001-5,000	3,346 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Advanced Call Center Technologies, LLC	Exact match	Berwyn, PA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
12	Inspiro	Exact match	Makati City Manila, PhilippinesHQ recorded Sep 28, 2026	10001+	2,482 contacts →
	Exact match “A global CX outsourcing leader, Inspiro empowers smart, secure, seamless, scalable, and satisfying customer experience (CX) across a network of BPO and customer champions in 100…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Webhelp Onelink	Exact match	Guatemala, United StatesHQ recorded Sep 28, 2026	10001+	2,245 contacts →
	Exact match “OneLink is the premier partner in outsourced omnichannel customer experience services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	CAT Technologies Argentina	Exact match	Buenos Aires, ArgentinaHQ recorded Sep 28, 2026	1,001-5,000	2,221 contacts →
	Exact match “Somos la compañía líder en Servicios Next Gen de Contact Center, Business Process Outsourcing (BPO) y Customer Experience (CX).” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Allied Global	Exact match	GuatemalaHQ recorded Sep 28, 2026	5,001-10,000	1,979 contacts →
	Exact match “Regardless of your Company’s size (from Start-ups to Fortune 500), business vertical or service requirements, we act as a seamless extension of your team to help you grow, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Modivcare	Exact match	Denver, CO, United StatesHQ recorded Sep 28, 2026	10001+	1,926 contacts →
	Exact match “Modivcare is a technology-enabled healthcare services company, which provides a suite of integrated supportive care solutions for public and private payors and their patients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Aquity Solutions	Exact match	Cary, NC, United StatesHQ recorded Sep 28, 2026	10001+	1,856 contacts →
	Exact match “IKS Health is on a mission to enable the efficient delivery of high quality care through a combination of leading edge technology and human expertise.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Km2 Solutions	Exact match	Boca Raton, FL, United StatesHQ recorded Sep 28, 2026	5,001-10,000	1,741 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Support Services Group	Exact match	Waco, TX, United StatesHQ recorded Sep 28, 2026	5,001-10,000	1,710 contacts →
	Exact match “Support Services Group (SSG) helps businesses accelerate growth and earn customers for life through high-touch, outsourced engagement center services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Phreesia	Exact match	Wilmington, DE, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,676 contacts →
	Exact match “Phreesia was founded in 2005 to help patients take an active role in their care.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Carenet Health	Exact match	San Antonio, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,606 contacts →
	Exact match “Carenet Health is committed to delivering the business of healthcare through leading-edge technology, unmatched perspective and insights, and operational excellence to help…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Ascent Business Solutions	Exact match	Nagpur, IndiaHQ recorded Sep 28, 2026	1,001-5,000	1,554 contacts →
	Exact match “Rising cost of healthcare, increased adoption of technology, prevalence of quality- and performance-based reimbursement models, evolving physician-hospital -patient dynamics are…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Eclat Health Solutions INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,416 contacts →
	Exact match “ECLAT Health Solutions (ECLAT) is headquartered minutes away from Washington, DC.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Palmetto GBA	Exact match	Columbia, SC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,350 contacts →
	Exact match “You can’t reach new heights of performance unless you’re willing to invest in others.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	EXL Health	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	10001+	1,310 contacts →
	Exact match “EXL Health combines deep domain expertise with analytic insights and technology-enabled services to transform how care is delivered, managed, and paid.” Recorded in the RevenueBase company graph · Sep 28, 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 “healthcare customer service outsourcing 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 5,429 healthcare customer service outsourcing companies worldwide

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Healthcare customer service outsourcing companies worldwide at a glance

As of Sep 28, 2026

19.4%Verified-email coverage

57.4Average contacts per company

11-50Median size (employees)

1.9%Largest-city concentration · Lahore

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,466

11-50

1,829

51-200

1,238

201-500

465

501-1,000

203

1,001-5,000

154

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for healthcare customer service outsourcing companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “healthcare customer service outsourcing 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. 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 60,507 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 28, 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.

Healthcare customer service outsourcing companies by location

26 lists · largest first

Every Healthcare customer service outsourcing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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

How many healthcare customer service outsourcing companies are there worldwide?

RevenueBase identified 5,429 company matches for healthcare customer service outsourcing companies worldwide 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?

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

Which country has the most healthcare customer service outsourcing companies?

The United States leads with 1,953 companies, followed by India (633) and Pakistan (276). Every healthcare customer service outsourcing companies list by country and city is linked on this page.

Which city has the most healthcare customer service outsourcing companies?

Lahore leads with 102 company records, followed by New York (53) and London (48).

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 60,507 professional contacts with verified work emails tracked across these 5,429 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 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 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.