Company lists · Data refreshed November 2026

Top 25 Diagnostic sample collection services worldwide

RevenueBase identified 3,161 company matches for diagnostic sample collection services worldwide as of November 2026 and tracks 115,422 professional contacts across them, including 13,682 with verified work emails. Brazil is the largest market and New Delhi the largest hub.

This list covers company matches for diagnostic sample collection 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 November 6, 2026. Country and city lists for diagnostic sample collection 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 Nov 6, 2026 How this list was built
3,161Companies
115,422Contacts tracked
13,682Verified emails
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The 25 largest diagnostic sample collection services worldwide

Ranked by team size
Top 25 of 3,161 company matches for diagnostic sample collection services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSecaucus, NJ, United StatesHQ recorded Nov 6, 202610001+30,147 contacts →

Exact match

“Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchGurgaon, IndiaHQ recorded Nov 6, 20261,001-5,0005,161 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBehind Glaxo, IndiaHQ recorded Nov 6, 20261,001-5,0002,978 contacts →

Exact match

“We believe that every human being deserves to know the truth about their inner health.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLahore, PakistanHQ recorded Nov 6, 20261,001-5,0001,310 contacts →

Exact match

“Established in 1983, Chughtai Lab is the leading diagnostic lab in Pakistan.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPhoenix, AZ, United StatesHQ recorded Nov 6, 20261,001-5,0001,295 contacts →

Exact match

“Sonora Quest Laboratories, a subsidiary of Laboratory Sciences of Arizona, is an Arizona-based joint venture between Banner Health and Quest Diagnostics (NYSE: DGX) that makes up…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchChennai, IndiaHQ recorded Nov 6, 2026501-1,0001,096 contacts →

Exact match

“Medall Diagnostics is a trusted diagnostic center offering Blood Tests, MRI, CT Scan, Ultrasound, X-Ray, and Full Body Health Checkups.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchIrving, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,093 contacts →

Exact match

“For life sciences research, our in-home biospecimen collection, medical records and data abstraction services have supported more than 200 studies and phase II-IV trials.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchIslamabad, PakistanHQ recorded Nov 6, 20261,001-5,0001,069 contacts →

Exact match

“Established in 2003, Islamabad Diagnostic Centre (IDC) is Pakistan's leading diagnostic center, committed to provide comprehensive medical diagnostic services through a network of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBowen Hills, AustraliaHQ recorded Nov 6, 20261,001-5,0001,062 contacts →

Exact match

“Sullivan Nicolaides Pathology is one of Australia’s largest and most respected diagnostic testing laboratories, regarded for our expertise in esoteric as much as routine testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchKraków, PolandHQ recorded Nov 6, 20265,001-10,0001,023 contacts →

Exact match

“Diagnostyka to więcej dla zdrowia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchChennai, IndiaHQ recorded Nov 6, 202610001+1,006 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchChennai, IndiaHQ recorded Nov 6, 20261,001-5,000885 contacts →

Exact match

“Apollo Diagnostics is part of the Apollo Health and Lifestyle Limited services brought to you by the illustrious Apollo Group.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchGurgaon, IndiaHQ recorded Nov 6, 20261,001-5,000747 contacts →

Exact match

“Oncquest Laboratories Ltd is known for its excellence in Clinical Diagnostics.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMurarrie, AustraliaHQ recorded Nov 6, 20261,001-5,000736 contacts →

Exact match

“QML Pathology is one of Queensland and northern New South Wales leaders in medical diagnostic testing, providing a friendly and professional service to patients and the medical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchHeidelberg, AustraliaHQ recorded Nov 6, 20261,001-5,000709 contacts →

Exact match

“Dorevitch Pathology was founded by Dr Abe Dorevitch in August 1970.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNorth Ryde, AustraliaHQ recorded Nov 6, 20261,001-5,000665 contacts →

Exact match

“Laverty Pathology is a leading provider of pathology and medical diagnostic services to doctors, specialists and hospitals throughout Australia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchKolkata, IndiaHQ recorded Nov 6, 20261,001-5,000650 contacts →

Exact match

“Welcome to Suraksha Diagnostics!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchDallas, VA, United StatesHQ recorded Nov 6, 20265,001-10,000640 contacts →

Exact match

“Sonic Healthcare USA is a subsidiary of Sonic Healthcare Limited, one of the world's largest medical diagnostics companies, providing laboratory services to medical practitioners…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAllentown, PA, United StatesHQ recorded Nov 6, 20261,001-5,000622 contacts →

Exact match

“Our Vision is To create a future where every person has the clarity and insight to live healthier.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAmman, JordanHQ recorded Nov 6, 2026201-500595 contacts →

Exact match

“Biolab is a group of medical diagnostic laboratories that offer a full range of laboratory services in Jordan.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNavi Mumbai, IndiaHQ recorded Nov 6, 2026201-500583 contacts →

Exact match

“At Lupin Diagnostics, we are dedicated to providing high quality testing with accurate results.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMumbai, IndiaHQ recorded Nov 6, 2026501-1,000570 contacts →

Exact match

“Suburban Diagnostics, established in 1994 has rapidly emerged as one of the most technologically advanced diagnostic centres.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBrescia, ItalyHQ recorded Nov 6, 20261,001-5,000513 contacts →

Exact match

“Copan is dedicated to developing high-quality and cutting-edge sample collection products for infectious diseases, human genomics, environmental and forensic applications, along…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHyderabad, IndiaHQ recorded Nov 6, 2026501-1,000508 contacts →

Exact match

“PathCare Labs(P)Limited is one of the top Diagnostic Service provider on the horizon with a promise to ensure Quality, Reliability and Customer Care.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHamilton, NJ, United StatesHQ recorded Nov 6, 2026501-1,000450 contacts →

Exact match

“Medical Diagnostic Laboratories (MDL), founded in 1997, serves primarily as a reference laboratory for Polymerase Chain Reaction (PCR) based testing to physicians, laboratories…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 3,161 diagnostic sample collection services worldwide

See the full list, filter by size, metro and specialty, and access 13,682 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Diagnostic sample collection services worldwide at a glance

As of Nov 6, 2026
11.9%Verified-email coverage
36.5Average contacts per company
11-50Median size (employees)
1.5%Largest-city concentration · New Delhi
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,108
11-50
1,096
51-200
528
201-500
214
501-1,000
76
1,001-5,000
61
5,001-10,000
7
10001+
11

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 diagnostic sample collection services are linked below.
What qualifies
Company records worldwide whose business descriptions match “diagnostic sample collection 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 13,682 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 November 6, 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.

Diagnostic sample collection services by location

7 lists · largest first

Every Diagnostic sample collection services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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

How many diagnostic sample collection services are there worldwide?

RevenueBase identified 3,161 company matches for diagnostic sample collection services worldwide as of November 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?

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

Which country has the most diagnostic sample collection services?

Brazil leads with 619 companies, followed by India (594) and the United States (376). Every diagnostic sample collection services list by country and city is linked on this page.

Which city has the most diagnostic sample collection services?

New Delhi leads with 47 company records, followed by Sao Paulo (35) and Hyderabad (33).

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 13,682 professional contacts with verified work emails tracked across these 3,161 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 November 6, 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.