Company lists · Data refreshed September 2026

Top 25 Diagnostic companies based in San Diego, United States

RevenueBase identified 82 company matches for diagnostic companies associated with San Diego, United States as of September 2026 and tracks 12,593 professional contacts across them, including 5,651 with verified work emails. Across the United States, San Diego is the largest hub for this category.

This list covers company matches for diagnostic companies associated with San Diego, United States, 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 19, 2026.

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 19, 2026 How this list was built
82Companies
12,593Contacts tracked
5,651Verified emails
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The 25 largest diagnostic companies based in San Diego, United States

Ranked by team size
Top 25 of 82 company matches for diagnostic companies based in San Diego, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchSan Diego, CA, United StatesHQ recorded Sep 19, 20265,001-10,0008,987 contacts →

Exact match

“At Illumina, our goal is to apply innovative technologies and revolutionary assays to the analysis of genetic variation and function, making studies possible that were not even…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 2026501-1,000444 contacts →

Exact match

“QuidelOrtho develops and manufactures intelligent solutions that are transforming data into understanding and action for more people in more places every day, helping spot trends…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 2026501-1,000386 contacts →

Exact match

“Technical Safety Services is a leading compliance, calibration and certification service provider for laboratories, hospitals, and pharmacies with locations across the United…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202651-200285 contacts →

Exact match

“At Prometheus Laboratories Inc, we enable unique health solutions with novel diagnostics.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202651-200235 contacts →

Exact match

“ACON Laboratories is an international diagnostic and medical device company with our corporate headquarters in San Diego, California USA.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 2026201-500182 contacts →

Exact match

“Invivoscribe® is a global leader dedicated to Improving Lives with Precision Diagnostics®, advancing the quality of healthcare by providing innovative products and clinical…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202651-200147 contacts →

Exact match

“Phamatech was founded in 1991 by a small group of dedicated scientists and business executives.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202651-20093 contacts →

Exact match

“Genalyte delivers accurate, real-time blood diagnostics at the point of care.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202651-20070 contacts →

Exact match

“Epic Sciences, Inc.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202611-5065 contacts →

Exact match

“Biocept, Inc.(Nasdaq: BIOC) develops and performs clinical laboratory tests to help patients with cancer that has metastasized to the central nervous system (CNS).”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202651-20044 contacts →

Exact match

“Siro delivers a complete diagnostic solution for the Point of Care: Sample In Results Out (SIRO) in ~20 minutes.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202651-20035 contacts →

Exact match

“Confirm Biosciences is a leading provider of CLIA-waived health and wellness solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202611-5035 contacts →

Exact match

“Veda is derived from the Sanskrit word for the creation of knowledge.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202651-20031 contacts →

Exact match

“Epigenomics is a molecular diagnostics company focused on the development of blood-based DNA methylation tests for the early the detection of cancer.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchSan Diego, United StatesHQ recorded Sep 19, 202651-20024 contacts →

Exact match

“PetDx – The Liquid Biopsy Company for Pets™ is a San Diego-based molecular diagnostics company dedicated to unleashing the power of genomics to improve pet health.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202651-20023 contacts →

Exact match

“Dr.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202611-5021 contacts →

Exact match

“Advin Biotech is a FDA Registered growing corporation and manufacturer specializing in rapid diagnostics products for drugs of abuse testing with China and US based manufacturing…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 20261-1019 contacts →

Exact match

“Trutino means ‘Balance’ in Latin, and this represents our strategy, namely an Rx/Dx approach for Precision Oncology Drug & Clinical Development.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202611-5014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202611-5012 contacts →

Exact match

“Founded in 2011, US Specialty Labs is a CLIA and CAP accredited, NGSP Certified high-complexity laboratory Specializing in the processing of patient collected samples mailed into…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202611-5012 contacts →

Exact match

“Sales and service of medical imaging systems.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 20261-1011 contacts →

Exact match

“VisiCELL Medical Inc, “GPS for Cell Therapy”, is developing in vivo imaging analytics for customers with cell-based therapies in solid tumor cancers, autoimmune diseases and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202611-508 contacts →

Exact match

“Amydis is leading the way for early detection of diseases through the eye that is accessible, affordable and non-invasive.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202611-508 contacts →

Exact match

“Prominex was founded by individuals passionate about transforming molecular testing in non-traditional testing settings.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchSan Diego, CA, United StatesHQ recorded Sep 19, 202611-508 contacts →

Exact match

“Reveal Biosciences is a computational pathology company combining traditional histopathology with artificial intelligence to transform tissue biology into actionable data.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 82 diagnostic companies based in San Diego, United States

See the full list, filter by size, metro and specialty, and access 5,651 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Diagnostic companies based in San Diego, United States at a glance

As of Sep 19, 2026
44.9%Verified-email coverage
153.6Average contacts per company
11-50Median size (employees)
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
32
11-50
25
51-200
16
201-500
3
501-1,000
3
1,001-5,000
2
5,001-10,000
1

Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 82 companies.

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.
What qualifies
Company records associated with San Diego, United States whose business descriptions match “diagnostic 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 5,651 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 19, 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.

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 companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many diagnostic companies are there based in San Diego, United States?

RevenueBase identified 82 company matches for diagnostic companies associated with San Diego, United States 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?

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

Which city in the United States has the most diagnostic companies?

San Diego leads the United States with 82 company records, followed by Houston (72) and New York (64).

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 5,651 professional contacts with verified work emails tracked across these 82 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 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 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.