Company lists · Data refreshed October 2026

Top 25 Medical diagnostic services worldwide

Name: Medical diagnostic services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 27, 2026 11,739 companies tracked

RevenueBase identified 11,739 company matches for medical diagnostic services worldwide as of October 2026 and tracks 543,180 professional contacts across them, including 103,197 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers company matches for medical diagnostic services 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 October 27, 2026. Country and city lists for medical diagnostic services 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 Oct 27, 2026 How this list was built

11,739Companies

543,180Contacts tracked

103,197Verified emails

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The 25 largest medical diagnostic services worldwide

Ranked by team size

Top 25 of 11,739 company matches for medical diagnostic services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 27, 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	Labcorp	Exact match	Burlington, NC, United StatesHQ recorded Oct 27, 2026	10001+	39,299 contacts →
	Exact match “Clear and confident health care decisions begin with questions.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
2	Quest Diagnostics	Exact match	Secaucus, NJ, United StatesHQ recorded Oct 27, 2026	10001+	29,250 contacts →
	Exact match “Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
3	DASA	Exact match	Sao Paulo, BrazilHQ recorded Oct 27, 2026	10001+	18,788 contacts →
	Exact match “A Dasa é uma das maiores empresas de saúde do mundo, líder em medicina diagnóstica no Brasil.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
4	Eurofins	Exact match	LuxembourgHQ recorded Oct 27, 2026	10001+	12,261 contacts →
	Exact match “Since 1987, Eurofins has grown from one laboratory in Nantes, France to over staff across a network of independent companies in 59 countries, operating over 950 laboratories.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
5	Grupo Fleury	Exact match	São Paulo, BrazilHQ recorded Oct 27, 2026	10001+	11,101 contacts →
	Exact match “O Grupo Fleury é reconhecido como uma referência de qualidade em medicina diagnóstica no país, com soluções completas, coordenação de cuidado centrada no indivíduo, capacidade de…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
6	Beckman Coulter Diagnostics	Exact match	Brea, CA, United StatesHQ recorded Oct 27, 2026	10001+	10,426 contacts →
	Exact match “A global leader in advanced diagnostics, Beckman Coulter has challenged convention to elevate the diagnostic laboratory’s role in improving patient health for more than 80 years.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
7	Community Health Systems	Exact match	Franklin, TN, United StatesHQ recorded Oct 27, 2026	10001+	9,165 contacts →
	Exact match “Community Health Systems is one of the nation's leading healthcare providers.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
8	Acibadem Healthcare Group	Exact match	İstanbul, TürkiyeHQ recorded Oct 27, 2026	10001+	7,817 contacts →
	Exact match “The Acıbadem Healthcare Group is Turkey’s most valuable private healthcare organisation according to brand assessment results and the position the group has achieved in the sector.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
9	Clinica Alemana DE Santiago	Exact match	Santiago, ChileHQ recorded Oct 27, 2026	5,001-10,000	5,569 contacts →
	Exact match “Bienvenido a Clínica Alemana de Santiago.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
10	Healthsouth	Exact match	Birmingham, United StatesHQ recorded Oct 27, 2026	10001+	5,374 contacts →
	Exact match “Formerly HealthSouth and Encompass Home Health & Hospice, we have combined our strengths as Encompass Health.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
11	DR LAL Pathlabs	Exact match	Gurgaon, IndiaHQ recorded Oct 27, 2026	1,001-5,000	4,815 contacts →
	Exact match “Established in 1949, Dr Lal PathLabs today is the largest and most respected diagnostic service provider in the country.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
12	Lancet Laboratories	Exact match	Johannesburg, South AfricaHQ recorded Oct 27, 2026	5,001-10,000	4,438 contacts →
	Exact match “Lancet Laboratories SA is one of the leading pathology laboratories operating throughout South Africa, providing vital diagnostic and monitoring pathology services in the 9…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
13	Lifelabs Medical Laboratory Services	Exact match	Toronto, ON, CanadaHQ recorded Oct 27, 2026	5,001-10,000	3,488 contacts →
	Exact match “LifeLabs is Canada’s leading provider of laboratory diagnostic information and digital health connectivity systems, enabling patients and healthcare practitioners to diagnose…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
14	Salud Digna	Exact match	Culiacán, MexicoHQ recorded Oct 27, 2026	5,001-10,000	3,356 contacts →
	Exact match “Ser la institución líder en prevención y diagnóstico oportuno, en las áreas de influencia de nuestras clínicas, que contribuya a conservar y mejorar la salud de las personas.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
15	Radnet	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 27, 2026	10001+	3,285 contacts →
	Exact match “RadNet, Inc.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
16	Revvity	Exact match	Waltham, MA, United StatesHQ recorded Oct 27, 2026	10001+	3,071 contacts →
	Exact match “At Revvity, “impossible” is inspiration, and ""can't be done"" is a call to action.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
17	Ampath Laboratories	Exact match	Centurion, South AfricaHQ recorded Oct 27, 2026	1,001-5,000	2,875 contacts →
	Exact match “Ampath provides comprehensive support services to the incorporated Pathology Laboratory practices of Drs Du Buisson, Kramer, Swart, Bouwer Inc Our primary goal is to provide…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
18	Metropolis Healthcare	Exact match	Behind Glaxo, IndiaHQ recorded Oct 27, 2026	1,001-5,000	2,850 contacts →
	Exact match “We believe that every human being deserves to know the truth about their inner health.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
19	Thyrocare Technologies LTD	Exact match	Navi Mumbai, IndiaHQ recorded Oct 27, 2026	1,001-5,000	2,847 contacts →
	Exact match “Why is Thyrocare more than just a workplace?” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
20	Unilabs	Exact match	Geneva, SwitzerlandHQ recorded Oct 27, 2026	10001+	2,430 contacts →
	Exact match “We are one of Europe’s leading suppliers of clinical laboratory testing and medical diagnostic imaging services to private and public healthcare providers, local governments…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
21	KPJ Healthcare BHD	Exact match	Kuala Lumpur, MalaysiaHQ recorded Oct 27, 2026	10001+	2,297 contacts →
	Exact match “Since its inception in 1981 as the first private specialist hospital in Johor, KPJ Healthcare has served communities and neighbourhoods nationwide for over 40 years.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
22	Pathcare	Exact match	Cape Town, South AfricaHQ recorded Oct 27, 2026	1,001-5,000	2,172 contacts →
	Exact match “PathCare Laboratories PathCare is a network of pathology laboratories that provide testing of specimens, primarily for medical diagnostic purposes.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
23	Biogroup	Exact match	St.-ouen, FranceHQ recorded Oct 27, 2026	10001+	2,139 contacts →
	Exact match “Premier groupement de laboratoires détenu et dirigé exclusivement par des biologistes, dont la connaissance métier et le professionnalisme constituent sa force.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
24	Medicover	Exact match	Stockholm, SwedenHQ recorded Oct 27, 2026	10001+	2,053 contacts →
	Exact match “Medicover is a leading international provider of healthcare and diagnostic services, headquartered in Sweden and listed on Nasdaq Stockholm.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase
25	Transasia Bio-Medicals LTD	Exact match	Mumbai, IndiaHQ recorded Oct 27, 2026	1,001-5,000	1,937 contacts →
	Exact match “Incepted in the year 1979, Transasia Bio-Medicals Ltd, is headquartered in Mumbai, India.” Recorded in the RevenueBase company graph · Oct 27, 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 “medical diagnostic services”. 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 11,739 medical diagnostic services worldwide

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Medical diagnostic services worldwide at a glance

As of Oct 27, 2026

19.0%Verified-email coverage

46.3Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Sao Paulo

Oct 27, 2026Page data refreshed

Companies by employee count

1-10

3,745

11-50

4,181

51-200

2,208

201-500

822

501-1,000

310

1,001-5,000

276

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 medical diagnostic services are linked below.
What qualifies: Company records worldwide whose business descriptions match “medical diagnostic services” 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 103,197 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 October 27, 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.

Medical diagnostic services by location

47 lists · largest first

Every Medical diagnostic services 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 “medical diagnostic services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many medical diagnostic services are there worldwide?

RevenueBase identified 11,739 company matches for medical diagnostic services worldwide as of October 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?

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

Which country has the most medical diagnostic services?

Brazil leads with 2,371 companies, followed by the United States (1,828) and India (1,323). Every medical diagnostic services list by country and city is linked on this page.

Which city has the most medical diagnostic services?

Sao Paulo leads with 154 company records, followed by New Delhi (103) and Mumbai (79).

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 103,197 professional contacts with verified work emails tracked across these 11,739 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 October 27, 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.