Company lists · Data refreshed September 2026

Top 25 Variant interpretation companies based in the United States

RevenueBase identified 178 variant interpretation companies headquartered in the United States as of September 2026 and tracks 13,238 professional contacts across them, including 8,332 with verified work emails and 5,679 with mobile numbers. Houston is the largest hub.

This list covers variant interpretation companies headquartered in the United States, 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 6, 2026.

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 6, 2026 86% judged on-target in blind review
178Companies
13,238Contacts tracked
8,332Verified emails
5,679Mobile numbers
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The 25 largest variant interpretation companies based in the United States

Ranked by team size
Top 25 of 178 variant interpretation companies based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to variant interpretation companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAustin, TX, United StatesHQ checked Sep 6, 20265,001-10,0005,354 contacts →

“Natera™ is a global leader in cell-free DNA and precision medicine, dedicated to oncology, women’s health, and organ health.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceStamford, CT, United StatesHQ checked Sep 6, 20261,001-5,0001,048 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.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceAliso Viejo, CA, United StatesHQ checked Sep 6, 2026501-1,000957 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…”

Source: company website · checked Sep 6, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261,001-5,000703 contacts →

“Invitae, now part of Labcorp, is a leading medical genetics company trusted by millions of patients and their providers to deliver timely genetic information using digital…”

Source: company website · checked Sep 6, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 2026501-1,000549 contacts →

“Baylor Genetics is a leading diagnostic genomics partner offering a full spectrum of clinically relevant genetic testing, including Whole Genome Sequencing, Whole Exome…”

Source: company website · checked Sep 6, 2026
6Indirect evidenceEl Monte, CA, United StatesHQ checked Sep 6, 20261,001-5,000435 contacts →

“Our mission is to develop flexible and affordable diagnostics and therapeutics that improve the everyday lives of those around us.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceCharlestown, MA, United StatesHQ checked Sep 6, 2026501-1,000369 contacts →

“Velsera was formed in 2023 through the shared vision of Seven Bridges and Pierian, with a mission to accelerate the discovery, development, and delivery of life-changing insights.”

Source: company website · checked Sep 6, 2026
8Indirect evidencePine Brook, NJ, United StatesHQ checked Sep 6, 2026201-500309 contacts →

“With over 18 years of experience in the medical field.”

Source: company website · checked Sep 6, 2026
9Partial evidenceFramingham, MA, United StatesHQ checked Sep 6, 202651-200214 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…”

Source: company website · checked Sep 6, 2026
10Indirect evidenceMarshfield, WI, United StatesHQ checked Sep 6, 2026201-500177 contacts →

“At PreventionGenetics, we are passionate about human genetics and its power to improve lives.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceGreenwood, SC, United StatesHQ checked Sep 6, 202651-200177 contacts →

“For 50 years, the Greenwood Genetic Center has provided clinical genetic services, diagnostic laboratory testing, educational programs and resources, and medical genetics research…”

Source: company website · checked Sep 6, 2026
12Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 6, 2026501-1,000169 contacts →

“Flow Health is a leading provider of diagnostic information services, offering a wide range of diagnostic testing services.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 6, 202651-200160 contacts →

“Roche is dedicated to advancing personalized healthcare by creating diagnostics and treatments tailored to individual genetic and disease profiles.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceMarlborough, MA, United StatesHQ checked Sep 6, 2026201-500102 contacts →

“Athena Diagnostics is a clinical diagnostics service testing laboratory focused on neurology, endocrinology and nephrology.”

Source: company website · checked Sep 6, 2026
15Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-50099 contacts →

“Gene by Gene operates one of the most advanced, speciality genetic laboratories in the world.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceParsippany, NJ, United StatesHQ checked Sep 6, 202651-20090 contacts →

“Interpace Biosciences (OTCQX: IDXG) is a leader in enabling personalized medicine, offering specialized services along the therapeutic value chain from early diagnosis and…”

Source: company website · checked Sep 6, 2026
17Indirect evidenceSouth Plainfield, NJ, United StatesHQ checked Sep 6, 202651-20082 contacts →

“Admera Health, established in 2014 as a spinout from Genewiz, is your trusted partner in advancing research through expert scientific support and advanced laboratory services.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 2026201-50070 contacts →

“At AccessDx Laboratory, we are passionate about enhancing and extending patients’ lives by optimizing patient therapy.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 6, 202611-5070 contacts →

“Inocras is a bioinformatics-led company redefining precision health through whole genome data and proprietary analytics.”

Source: company website · checked Sep 6, 2026
20Indirect evidencePalo Alto, CA, United StatesHQ checked Sep 6, 202651-20063 contacts →

“Using whole genome sequencing and state-of-the-art bioinformatics, MyOme analyzes a single patient sample to produce comprehensive and clinically actionable reports that allow…”

Source: company website · checked Sep 6, 2026
21Partial evidenceMorristown, NJ, United StatesHQ checked Sep 6, 202651-20059 contacts →

“At GeneScreen, our committment is to deliver compassionate genetic counseling, guiding patients and providers through the complexities of genetic testing and interpretation.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceMenlo Park, CA, United StatesHQ checked Sep 6, 2026201-50055 contacts →

“Avellino turns genomic analytics into actionable healthcare insights, creating a healthier future for all.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceGainesville, GA, United StatesHQ checked Sep 6, 202651-20053 contacts →

“Science.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceNew York, United StatesHQ checked Sep 6, 202651-20048 contacts →

“Igentify® is a digital health company.”

Source: company website · checked Sep 6, 2026
25Indirect evidencePalo Alto, CA, United StatesHQ checked Sep 6, 202651-20045 contacts →

“Centrillion Tech’ mission is to empower researchers, physicians and consumers to have responsible and cost effective access to genomic information and to advance personalized…”

Source: company website · checked Sep 6, 2026

Showing 25 of 178 variant interpretation companies based in the United States

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Variant interpretation companies based in the United States at a glance

As of Sep 6, 2026
62.9%Verified-email coverage
42.9%Mobile-number coverage
74.4Average contacts per company
11-50Median size (employees)
4.5%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
47
11-50
73
51-200
35
201-500
11
501-1,000
7
1,001-5,000
4
5,001-10,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 variant interpretation companies, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “variant interpretation companies”. 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 variant interpretation companies), 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 variant interpretation companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 8,332 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 6, 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.

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 variant interpretation companies, 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 variant interpretation companies are there based in the United States?

RevenueBase identified 178 variant interpretation companies headquartered in the United States 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?

Natera, headquartered in Austin, tops this list with the largest team on record.

Which city has the most variant interpretation companies?

Houston leads with 8 headquartered companies, followed by Cambridge (6) and Irvine (5).

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 8,332 verified decision-maker contacts tracked across these 178 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 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 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.