Company lists · Data refreshed September 2026

Top 25 Diagnostic imaging centers worldwide

Name: Diagnostic imaging centers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 8,823 companies tracked

RevenueBase identified 8,823 diagnostic imaging centers worldwide as of September 2026 and tracks 255,445 professional contacts across them, including 66,575 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers diagnostic imaging centers worldwide, 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. Country and city lists for diagnostic imaging centers follow the table.

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 19, 2026 86% judged on-target in blind review

8,823Companies

255,445Contacts tracked

66,575Verified emails

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The 25 largest diagnostic imaging centers worldwide

Ranked by team size

Top 25 of 8,823 diagnostic imaging centers worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to diagnostic imaging centers: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Siemens Healthineers	Indirect evidence	Forchheim, GermanyHQ checked Sep 19, 2026	10001+	44,956 contacts →
	Indirect evidence “Siemens Healthineers is a leading medtech company with over 125 years of experience.” Source: RevenueBase Database · checked Sep 19, 2026
2	Grupo Fleury	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	10001+	10,468 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
3	Radnet	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	10001+	3,126 contacts →
	Indirect evidence “RadNet, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
4	Unilabs	Strong evidence	Geneva, SwitzerlandHQ checked Sep 19, 2026	10001+	2,350 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
5	Guerbet	Partial evidence	Villepinte, FranceHQ checked Sep 19, 2026	1,001-5,000	2,313 contacts →
	Partial evidence “Guerbet is a global leader in medical imaging, dedicated to improving patient care through innovation.” Source: RevenueBase Database · checked Sep 19, 2026
6	Radiology Partners	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 19, 2026	5,001-10,000	2,033 contacts →
	Indirect evidence “Our mission is to transform radiology.” Source: RevenueBase Database · checked Sep 19, 2026
7	I-Med Radiology Network	Strong evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1,001-5,000	1,770 contacts →
	Strong evidence “I-MED Radiology Network is Australasia’s leading diagnostic imaging provider, offering a comprehensive range of medical imaging and radiology services, including X-ray, PET, CT…” Source: RevenueBase Database · checked Sep 19, 2026
8	Affidea	Strong evidence	The Hague, NetherlandsHQ checked Sep 19, 2026	10001+	1,755 contacts →
	Strong evidence “About Affidea -nothing is more important than health Affidea is the pan-European diagnostic imaging and community-based polyclinic and specialist healthcare services provider.” Source: RevenueBase Database · checked Sep 19, 2026
9	Idime S.A	Indirect evidence	Bogotá, ColombiaHQ checked Sep 19, 2026	5,001-10,000	1,556 contacts →
	Indirect evidence “Somos una organización dedicada a la prestación de servicios de apoyo diagnóstico por medio de imágenes, laboratorio clínico y consulta externa, servicios en donde nos…” Source: RevenueBase Database · checked Sep 19, 2026
10	Bracco	Strong evidence	Milan, ItalyHQ checked Sep 19, 2026	1,001-5,000	1,458 contacts →
	Strong evidence “Bracco is an international Group active in the healthcare sector and a leader in diagnostic imaging.” Source: RevenueBase Database · checked Sep 19, 2026
11	Inhealth	Partial evidence	High Wycombe, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,421 contacts →
	Partial evidence “InHealth is the UK’s largest specialist provider of diagnostic and healthcare solutions.” Source: RevenueBase Database · checked Sep 19, 2026
12	Sectra	Indirect evidence	Linköping, SwedenHQ checked Sep 19, 2026	1,001-5,000	1,303 contacts →
	Indirect evidence “Driven by knowledge and passion, our vision is to contribute to a healthier and safer society.” Source: RevenueBase Database · checked Sep 19, 2026
13	Sonic Healthcare	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	10001+	1,123 contacts →
	Indirect evidence “Sonic is a leading international healthcare company with specialist operations in pathology/laboratory medicine, radiology, general practice medicine and corporate medical…” Source: RevenueBase Database · checked Sep 19, 2026
14	Rayus Radiology	Partial evidence	St Louis Park, MN, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,111 contacts →
	Partial evidence “As a leading national subspecialty provider for advanced diagnostic and interventional radiology services, RAYUS Radiology is challenging the status quo by shining the light on…” Source: RevenueBase Database · checked Sep 19, 2026
15	Simonmed Imaging	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,099 contacts →
	Partial evidence “SimonMed Imaging is the largest physician owned outpatient medical imaging provider in the nation.” Source: RevenueBase Database · checked Sep 19, 2026
16	CDB	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	1,092 contacts →
	Indirect evidence “Referência em exames de imagem, exames laboratoriais e vacinas.” Source: RevenueBase Database · checked Sep 19, 2026
17	Akumin	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,070 contacts →
	Indirect evidence “Akumin is a leading U.S.” Source: RevenueBase Database · checked Sep 19, 2026
18	Medall	Strong evidence	Chennai, IndiaHQ checked Sep 19, 2026	501-1,000	1,055 contacts →
	Strong evidence “Medall Diagnostics is a trusted diagnostic center offering Blood Tests, MRI, CT Scan, Ultrasound, X-Ray, and Full Body Health Checkups.” Source: RevenueBase Database · checked Sep 19, 2026
19	Islamabad Diagnostic Centre PVT LTD	Strong evidence	Islamabad, PakistanHQ checked Sep 19, 2026	1,001-5,000	997 contacts →
	Strong evidence “Established in 2003, Islamabad Diagnostic Centre (IDC) is Pakistan's leading diagnostic center, committed to provide comprehensive medical diagnostic services through a network of…” Source: RevenueBase Database · checked Sep 19, 2026
20	Alliança	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	5,001-10,000	991 contacts →
	Indirect evidence “Seja bem-vindo(a) à Alliança - Excelência em Saúde!” Source: RevenueBase Database · checked Sep 19, 2026
21	Esaote	Partial evidence	Genova, ItalyHQ checked Sep 19, 2026	1,001-5,000	967 contacts →
	Partial evidence “Esaote is a leading industrial Group with a unique value proposition, providing medical imaging solutions in Ultrasound and Dedicated MRI, complemented by Healthcare IT, technical…” Source: RevenueBase Database · checked Sep 19, 2026
22	Canon Medical Systems Europe	Strong evidence	Amstelveen, NetherlandsHQ checked Sep 19, 2026	201-500	946 contacts →
	Strong evidence “Canon Medical Systems Europe offers a full range of medical imaging solutions, including CT, Diagnostic and Interventional X-ray, MRI, Ultrasound, Eye Care, and Mobile Imaging…” Source: RevenueBase Database · checked Sep 19, 2026
23	Tridentcare	Partial evidence	Sparks, MD, United StatesHQ checked Sep 19, 2026	1,001-5,000	868 contacts →
	Partial evidence “TridentCare is the leading portable diagnostic services solution for a variety of healthcare markets, delivering quality services at our customers’ locations nationwide.” Source: RevenueBase Database · checked Sep 19, 2026
24	Cerba Healthcare Italia	Partial evidence	Milan, ItalyHQ checked Sep 19, 2026	1,001-5,000	819 contacts →
	Partial evidence “Established in 2017, it is the Italian headquarters of the international group Cerba HealthCare dedicated to outpatient diagnostics with laboratories analysis present in 47…” Source: RevenueBase Database · checked Sep 19, 2026
25	Tecnolab Medicina Diagnóstica	Indirect evidence	São Bernardo Do Campo, BrazilHQ checked Sep 19, 2026	501-1,000	798 contacts →
	Indirect evidence “Há 45 anos no mercado, o Tecnolab hoje se destaca como o mais completo centro de diagnóstico da região do ABCD, Mauá e Ribeirão Pires.” Source: RevenueBase Database · checked Sep 19, 2026

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: diagnostic imaging centers. 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 diagnostic imaging centers.
Partial evidence: Its own public description names part of diagnostic imaging centers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name diagnostic imaging centers. 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 8,823 diagnostic imaging centers worldwide

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Diagnostic imaging centers worldwide at a glance

As of Sep 19, 2026

26.1%Verified-email coverage

29.0Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

3,038

11-50

3,222

51-200

1,629

201-500

499

501-1,000

185

1,001-5,000

131

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 diagnostic imaging centers, 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.
Coverage: Every country. Country and city lists for diagnostic imaging centers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “diagnostic imaging centers”. 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 diagnostic imaging centers), 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 diagnostic imaging centers, and records with no verified work email.
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, 66,575 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.

Diagnostic imaging centers by location

31 lists · largest first

Every Diagnostic imaging centers 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 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 diagnostic imaging centers, 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 diagnostic imaging centers are there worldwide?

RevenueBase identified 8,823 diagnostic imaging centers worldwide 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?

Siemens Healthineers, headquartered in Forchheim, tops this list with the largest team on record.

Which country has the most diagnostic imaging centers?

The United States leads with 2,011 companies, followed by Brazil (1,512) and India (663). Every diagnostic imaging centers list by country and city is linked on this page.

Which city has the most diagnostic imaging centers?

Sao Paulo leads with 135 headquartered companies, followed by Rio De Janeiro (79) and New Delhi (54).

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 66,575 verified decision-maker contacts tracked across these 8,823 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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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.