Company lists · Data refreshed September 2026
Top 25 Companion diagnostics companies based in the United States
RevenueBase identified 488 company matches for companion diagnostics companies associated with the United States as of September 2026 and tracks 45,733 professional contacts across them, including 24,883 with verified work emails. San Diego is the largest hub.
This list covers company matches for companion diagnostics companies associated with the 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.
The 25 largest companion diagnostics companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 8,987 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 | |||||
| 2 | 5,354 contacts → | ||||
Exact match “Natera™ is a global leader in cell-free DNA and precision medicine, dedicated to oncology, women’s health, and organ health.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 4,445 contacts → | ||||
Exact match “Cepheid is dedicated to improving healthcare by pioneering molecular diagnostics that combine speed, accuracy, and flexibility.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 3,321 contacts → | ||||
Exact match “Guardant Health is a leading precision medicine company focused on guarding wellness and giving every person more time free from cancer.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 2,718 contacts → | ||||
Exact match “Myriad Genetics is a leading molecular diagnostic testing and precision medicine company dedicated to advancing health and well-being for all.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 1,747 contacts → | ||||
Exact match “Foundation Medicine is a global, patient-focused precision medicine company delivering high-quality, transformative diagnostic solutions in cancer and other diseases.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 1,678 contacts → | ||||
Exact match “Our vision: A world where every cancer treatment decision is as personal as the patient.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 1,048 contacts → | ||||
Exact match “We see a world where every genetic condition is understood, and every patient receives the care they need to live their healthiest life through genomics.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 957 contacts → | ||||
Exact match “Ambry Genetics, a Tempus company, translates scientific research into clinically actionable test results based upon a deep understanding of the human genome and the biology behind…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 696 contacts → | ||||
Exact match “BillionToOne is a precision diagnostics company with the mission to make molecular diagnostics more accurate, efficient, and accessible.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 682 contacts → | ||||
Exact match “Castle Biosciences (Nasdaq: CSTL) is a leading diagnostics company improving health through innovative tests that guide patient care.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 677 contacts → | ||||
Exact match “The Menarini Group ("Menarini"), a leading Italian pharmaceutical and diagnostics company, and Stemline Therapeutics, Inc.("Stemline"), a wholly-owned subsidiary of the Menarini…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 676 contacts → | ||||
Exact match “Every second of every hour of every day, 44 of our products are employed in the battle against cancer.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 675 contacts → | ||||
Exact match “Veracyte is a global diagnostics company that empowers clinicians with the high-value insights they need to guide and assure patients at pivotal moments in the race to diagnose…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 455 contacts → | ||||
Exact match “Quanterix is a company that is digitizing biomarker analysis with the goal of advancing the science of precision health.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 435 contacts → | ||||
Exact match “Our mission is to develop flexible and affordable diagnostics and therapeutics that improve the everyday lives of those around us.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 361 contacts → | ||||
Exact match “Biodesix is a leading diagnostics solutions company, driven to improve clinical care and outcomes for patients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 325 contacts → | ||||
Exact match “At Personalis, we are transforming the active management of cancer through breakthrough personalized testing.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 309 contacts → | ||||
Exact match “With over 18 years of experience in the medical field.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 305 contacts → | ||||
Exact match “Headquartered in Asheville, N.C, Genova Diagnostics is a global specialty clinical laboratory, pioneering a systems approach that supports healthcare providers in the personalized…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 281 contacts → | ||||
Exact match “About Genomic Health Genomic Health, Inc.(NASDAQ: GHDX) is the world's leading provider of genomic-based diagnostic tests that help optimize cancer care by addressing the…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 273 contacts → | ||||
Exact match “Mdxhealth is a multinational healthcare company that provides actionable molecular diagnostic information to personalize the diagnosis and treatment of cancer.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 224 contacts → | ||||
Exact match “IDEAYA is an oncology-focused precision medicine company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 220 contacts → | ||||
Exact match “Agendia, a precision oncology company, helps physicians and patients make personalized treatment decisions in early-stage breast cancer.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 214 contacts → | ||||
Exact match “Variantyx is a technology-driven precision medicine company providing state-of-the-art diagnostic solutions for the rare genetic disorders and reproductive genetics markets, and…” Recorded in the RevenueBase company graph · Sep 19, 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 “companion diagnostics 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 488 companion diagnostics companies based in the United States
See the full list, filter by size, metro and specialty, and access 24,883 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Companion diagnostics companies based in the United States at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 488 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 the United States whose business descriptions match “companion diagnostics 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 24,883 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 “companion diagnostics companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many companion diagnostics companies are there based in the United States?
RevenueBase identified 488 company matches for companion diagnostics companies associated with the 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 has the most companion diagnostics companies?
San Diego leads with 27 company records, followed by Irvine (16) and Cambridge (13).
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 24,883 professional contacts with verified work emails tracked across these 488 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.
Ready to reach these companies? Verified emails and direct dials for all 488 companion diagnostics companies based in the United States. Start with a free account, no credit card.
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Companion diagnostics companies by geography
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Companion diagnostics companies based in Canada
- Companion diagnostics companies based in France
- Companion diagnostics companies based in Germany
- Companion diagnostics companies based in India
- Companion diagnostics companies based in Spain
- Companion diagnostics companies based in the United Kingdom
Company intelligence · public preview
Top 25 companion diagnostics companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 488 matching company records for companion diagnostics companies based in the United States, with 45,733 tracked contacts and 24,883 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 companion diagnostics companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Illuminaillumina.comHQ: San Diego, CA, United StatesReported employees: 5,001-10,000 | San Diego, CA, United States | 5,001-10,000 | Exact match | 8,987 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Nateranatera.comHQ: Austin, TX, United StatesReported employees: 5,001-10,000 | Austin, TX, United States | 5,001-10,000 | Exact match | 5,354 contacts → |
“Natera™ is a global leader in cell-free DNA and precision medicine, dedicated to oncology, women’s health, and organ health.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Cepheidcepheid.comHQ: Sunnyvale, CA, United StatesReported employees: 5,001-10,000 | Sunnyvale, CA, United States | 5,001-10,000 | Exact match | 4,445 contacts → |
“Cepheid is dedicated to improving healthcare by pioneering molecular diagnostics that combine speed, accuracy, and flexibility.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Guardant Healthguardanthealth.comHQ: Palo Alto, CA, United StatesReported employees: 1,001-5,000 | Palo Alto, CA, United States | 1,001-5,000 | Exact match | 3,321 contacts → |
“Guardant Health is a leading precision medicine company focused on guarding wellness and giving every person more time free from cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Myriad Geneticsmyriad.comHQ: Salt Lake City, UT, United StatesReported employees: 1,001-5,000 | Salt Lake City, UT, United States | 1,001-5,000 | Exact match | 2,718 contacts → |
“Myriad Genetics is a leading molecular diagnostic testing and precision medicine company dedicated to advancing health and well-being for all.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Foundation Medicinefoundationmedicine.comHQ: Boston, MA, United StatesReported employees: 1,001-5,000 | Boston, MA, United States | 1,001-5,000 | Exact match | 1,747 contacts → |
“Foundation Medicine is a global, patient-focused precision medicine company delivering high-quality, transformative diagnostic solutions in cancer and other diseases.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Neogenomics Laboratoriesneogenomics.comHQ: Fort Myers, FL, United StatesReported employees: 1,001-5,000 | Fort Myers, FL, United States | 1,001-5,000 | Exact match | 1,678 contacts → |
“Our vision: A world where every cancer treatment decision is as personal as the patient.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Genedxgenedx.comHQ: Stamford, CT, United StatesReported employees: 1,001-5,000 | Stamford, CT, United States | 1,001-5,000 | Exact match | 1,048 contacts → |
“We see a world where every genetic condition is understood, and every patient receives the care they need to live their healthiest life through genomics.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ambry Geneticsambrygen.comHQ: Aliso Viejo, CA, United StatesReported employees: 501-1,000 | Aliso Viejo, CA, United States | 501-1,000 | Exact match | 957 contacts → |
“Ambry Genetics, a Tempus company, translates scientific research into clinically actionable test results based upon a deep understanding of the human genome and the biology behind…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Billiontoonebilliontoone.comHQ: Menlo Park, CA, United StatesReported employees: 501-1,000 | Menlo Park, CA, United States | 501-1,000 | Exact match | 696 contacts → |
“BillionToOne is a precision diagnostics company with the mission to make molecular diagnostics more accurate, efficient, and accessible.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Castle Biosciences, INCcastlebiosciences.com HQ: Friendswood, TX, United StatesReported employees: 501-1,000 | Friendswood, TX, United States | 501-1,000 | Exact match | 682 contacts → |
“Castle Biosciences (Nasdaq: CSTL) is a leading diagnostics company improving health through innovative tests that guide patient care.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Menarini Stemlinestemline.comHQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 677 contacts → |
“The Menarini Group ("Menarini"), a leading Italian pharmaceutical and diagnostics company, and Stemline Therapeutics, Inc.("Stemline"), a wholly-owned subsidiary of the Menarini…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Eprediaepredia.comHQ: Portsmouth, NH, United StatesReported employees: 1,001-5,000 | Portsmouth, NH, United States | 1,001-5,000 | Exact match | 676 contacts → |
“Every second of every hour of every day, 44 of our products are employed in the battle against cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Veracyte, INCveracyte.comHQ: South San Francisco, CA, United StatesReported employees: 501-1,000 | South San Francisco, CA, United States | 501-1,000 | Exact match | 675 contacts → |
“Veracyte is a global diagnostics company that empowers clinicians with the high-value insights they need to guide and assure patients at pivotal moments in the race to diagnose…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Quanterixquanterix.comHQ: Billerica, MA, United StatesReported employees: 201-500 | Billerica, MA, United States | 201-500 | Exact match | 455 contacts → |
“Quanterix is a company that is digitizing biomarker analysis with the goal of advancing the science of precision health.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Fulgent Geneticsfulgentgenetics.comHQ: El Monte, CA, United StatesReported employees: 1,001-5,000 | El Monte, CA, United States | 1,001-5,000 | Exact match | 435 contacts → |
“Our mission is to develop flexible and affordable diagnostics and therapeutics that improve the everyday lives of those around us.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Biodesix, INCbiodesix.com HQ: Louisville, CO, United StatesReported employees: 201-500 | Louisville, CO, United States | 201-500 | Exact match | 361 contacts → |
“Biodesix is a leading diagnostics solutions company, driven to improve clinical care and outcomes for patients.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Personalis, INCpersonalis.comHQ: Fremont, CA, United StatesReported employees: 201-500 | Fremont, CA, United States | 201-500 | Exact match | 325 contacts → |
“At Personalis, we are transforming the active management of cancer through breakthrough personalized testing.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sïparadigm Diagnostic Informaticssiparadigm.comHQ: Pine Brook, NJ, United StatesReported employees: 201-500 | Pine Brook, NJ, United States | 201-500 | Exact match | 309 contacts → |
“With over 18 years of experience in the medical field.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Genova Diagnosticsgdx.netHQ: Asheville, NC, United StatesReported employees: 201-500 | Asheville, NC, United States | 201-500 | Exact match | 305 contacts → |
“Headquartered in Asheville, N.C, Genova Diagnostics is a global specialty clinical laboratory, pioneering a systems approach that supports healthcare providers in the personalized…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Genomic Healthgenomichealth.comHQ: Redwood City, CA, United StatesReported employees: 501-1,000 | Redwood City, CA, United States | 501-1,000 | Exact match | 281 contacts → |
“About Genomic Health Genomic Health, Inc.(NASDAQ: GHDX) is the world's leading provider of genomic-based diagnostic tests that help optimize cancer care by addressing the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Mdxhealthmdxhealth.com HQ: Irvine, CA, United StatesReported employees: 201-500 | Irvine, CA, United States | 201-500 | Exact match | 273 contacts → |
“Mdxhealth is a multinational healthcare company that provides actionable molecular diagnostic information to personalize the diagnosis and treatment of cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Ideaya Biosciencesideayabio.comHQ: South San Francisco, CA, United StatesReported employees: 51-200 | South San Francisco, CA, United States | 51-200 | Exact match | 224 contacts → |
“IDEAYA is an oncology-focused precision medicine company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Agendiaagendia.comHQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 220 contacts → |
“Agendia, a precision oncology company, helps physicians and patients make personalized treatment decisions in early-stage breast cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Variantyxvariantyx.comHQ: Framingham, MA, United StatesReported employees: 51-200 | Framingham, MA, United States | 51-200 | Exact match | 214 contacts → |
“Variantyx is a technology-driven precision medicine company providing state-of-the-art diagnostic solutions for the rare genetic disorders and reproductive genetics markets, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 488 company matches
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Companion diagnostics companies: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
487 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 488 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for companion diagnostics companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many companion diagnostics companies did RevenueBase find based in the United States?
The saved snapshot records 488 matching company records, 45,733 tracked contacts and 24,883 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Companion diagnostics companies by geography
Cite this list
RevenueBase Data Team. Top 25 companion diagnostics companies based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/companion-diagnostics-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Companion diagnostics companies based in Canada
- Companion diagnostics companies based in France
- Companion diagnostics companies based in Germany
- Companion diagnostics companies based in India
- Companion diagnostics companies based in Spain
- Companion diagnostics companies based in the United Kingdom
Company intelligence · public preview
Top 25 companion diagnostics companies based in the United States
RevenueBase records 488 matching company records for companion diagnostics companies based in the United States, with 45,733 tracked contacts and 24,883 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 companion diagnostics companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Illuminaillumina.com HQ: San Diego, CA, United StatesReported employees: 5,001-10,000 | San Diego, CA, United States | 5,001-10,000 | Exact match | 8,987 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Nateranatera.com HQ: Austin, TX, United StatesReported employees: 5,001-10,000 | Austin, TX, United States | 5,001-10,000 | Exact match | 5,354 contacts → |
“Natera™ is a global leader in cell-free DNA and precision medicine, dedicated to oncology, women’s health, and organ health.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cepheidcepheid.com HQ: Sunnyvale, CA, United StatesReported employees: 5,001-10,000 | Sunnyvale, CA, United States | 5,001-10,000 | Exact match | 4,445 contacts → |
“Cepheid is dedicated to improving healthcare by pioneering molecular diagnostics that combine speed, accuracy, and flexibility.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Guardant Healthguardanthealth.com HQ: Palo Alto, CA, United StatesReported employees: 1,001-5,000 | Palo Alto, CA, United States | 1,001-5,000 | Exact match | 3,321 contacts → |
“Guardant Health is a leading precision medicine company focused on guarding wellness and giving every person more time free from cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Myriad Geneticsmyriad.com HQ: Salt Lake City, UT, United StatesReported employees: 1,001-5,000 | Salt Lake City, UT, United States | 1,001-5,000 | Exact match | 2,718 contacts → |
“Myriad Genetics is a leading molecular diagnostic testing and precision medicine company dedicated to advancing health and well-being for all.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Foundation Medicinefoundationmedicine.com HQ: Boston, MA, United StatesReported employees: 1,001-5,000 | Boston, MA, United States | 1,001-5,000 | Exact match | 1,747 contacts → |
“Foundation Medicine is a global, patient-focused precision medicine company delivering high-quality, transformative diagnostic solutions in cancer and other diseases.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Neogenomics Laboratoriesneogenomics.com HQ: Fort Myers, FL, United StatesReported employees: 1,001-5,000 | Fort Myers, FL, United States | 1,001-5,000 | Exact match | 1,678 contacts → |
“Our vision: A world where every cancer treatment decision is as personal as the patient.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Genedxgenedx.com HQ: Stamford, CT, United StatesReported employees: 1,001-5,000 | Stamford, CT, United States | 1,001-5,000 | Exact match | 1,048 contacts → |
“We see a world where every genetic condition is understood, and every patient receives the care they need to live their healthiest life through genomics.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ambry Geneticsambrygen.com HQ: Aliso Viejo, CA, United StatesReported employees: 501-1,000 | Aliso Viejo, CA, United States | 501-1,000 | Exact match | 957 contacts → |
“Ambry Genetics, a Tempus company, translates scientific research into clinically actionable test results based upon a deep understanding of the human genome and the biology behind…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Billiontoonebilliontoone.com HQ: Menlo Park, CA, United StatesReported employees: 501-1,000 | Menlo Park, CA, United States | 501-1,000 | Exact match | 696 contacts → |
“BillionToOne is a precision diagnostics company with the mission to make molecular diagnostics more accurate, efficient, and accessible.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Castle Biosciences, INCcastlebiosciences.com HQ: Friendswood, TX, United StatesReported employees: 501-1,000 | Friendswood, TX, United States | 501-1,000 | Exact match | 682 contacts → |
“Castle Biosciences (Nasdaq: CSTL) is a leading diagnostics company improving health through innovative tests that guide patient care.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Menarini Stemlinestemline.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 677 contacts → |
“The Menarini Group ("Menarini"), a leading Italian pharmaceutical and diagnostics company, and Stemline Therapeutics, Inc.("Stemline"), a wholly-owned subsidiary of the Menarini…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Eprediaepredia.com HQ: Portsmouth, NH, United StatesReported employees: 1,001-5,000 | Portsmouth, NH, United States | 1,001-5,000 | Exact match | 676 contacts → |
“Every second of every hour of every day, 44 of our products are employed in the battle against cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Veracyte, INCveracyte.com HQ: South San Francisco, CA, United StatesReported employees: 501-1,000 | South San Francisco, CA, United States | 501-1,000 | Exact match | 675 contacts → |
“Veracyte is a global diagnostics company that empowers clinicians with the high-value insights they need to guide and assure patients at pivotal moments in the race to diagnose…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Quanterixquanterix.com HQ: Billerica, MA, United StatesReported employees: 201-500 | Billerica, MA, United States | 201-500 | Exact match | 455 contacts → |
“Quanterix is a company that is digitizing biomarker analysis with the goal of advancing the science of precision health.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Fulgent Geneticsfulgentgenetics.com HQ: El Monte, CA, United StatesReported employees: 1,001-5,000 | El Monte, CA, United States | 1,001-5,000 | Exact match | 435 contacts → |
“Our mission is to develop flexible and affordable diagnostics and therapeutics that improve the everyday lives of those around us.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Biodesix, INCbiodesix.com HQ: Louisville, CO, United StatesReported employees: 201-500 | Louisville, CO, United States | 201-500 | Exact match | 361 contacts → |
“Biodesix is a leading diagnostics solutions company, driven to improve clinical care and outcomes for patients.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Personalis, INCpersonalis.com HQ: Fremont, CA, United StatesReported employees: 201-500 | Fremont, CA, United States | 201-500 | Exact match | 325 contacts → |
“At Personalis, we are transforming the active management of cancer through breakthrough personalized testing.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sïparadigm Diagnostic Informaticssiparadigm.com HQ: Pine Brook, NJ, United StatesReported employees: 201-500 | Pine Brook, NJ, United States | 201-500 | Exact match | 309 contacts → |
“With over 18 years of experience in the medical field.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Genova Diagnosticsgdx.net HQ: Asheville, NC, United StatesReported employees: 201-500 | Asheville, NC, United States | 201-500 | Exact match | 305 contacts → |
“Headquartered in Asheville, N.C, Genova Diagnostics is a global specialty clinical laboratory, pioneering a systems approach that supports healthcare providers in the personalized…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Genomic Healthgenomichealth.com HQ: Redwood City, CA, United StatesReported employees: 501-1,000 | Redwood City, CA, United States | 501-1,000 | Exact match | 281 contacts → |
“About Genomic Health Genomic Health, Inc.(NASDAQ: GHDX) is the world's leading provider of genomic-based diagnostic tests that help optimize cancer care by addressing the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Mdxhealthmdxhealth.com HQ: Irvine, CA, United StatesReported employees: 201-500 | Irvine, CA, United States | 201-500 | Exact match | 273 contacts → |
“Mdxhealth is a multinational healthcare company that provides actionable molecular diagnostic information to personalize the diagnosis and treatment of cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Ideaya Biosciencesideayabio.com HQ: South San Francisco, CA, United StatesReported employees: 51-200 | South San Francisco, CA, United States | 51-200 | Exact match | 224 contacts → |
“IDEAYA is an oncology-focused precision medicine company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Agendiaagendia.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 220 contacts → |
“Agendia, a precision oncology company, helps physicians and patients make personalized treatment decisions in early-stage breast cancer.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Variantyxvariantyx.com HQ: Framingham, MA, United StatesReported employees: 51-200 | Framingham, MA, United States | 51-200 | Exact match | 214 contacts → |
“Variantyx is a technology-driven precision medicine company providing state-of-the-art diagnostic solutions for the rare genetic disorders and reproductive genetics markets, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 488 company matches
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Companion diagnostics companies: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
487 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 488 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for companion diagnostics companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many companion diagnostics companies did RevenueBase find based in the United States?
The saved snapshot records 488 matching company records, 45,733 tracked contacts and 24,883 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Companion diagnostics companies by geography
Cite this list
RevenueBase Data Team. Top 25 companion diagnostics companies based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/companion-diagnostics-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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