Company lists · Data refreshed September 2026

Top 25 Diagnostic companies based in Irvine, United States

Name: Diagnostic companies based in Irvine, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 54 companies tracked

RevenueBase identified 54 diagnostic companies headquartered in Irvine, United States as of September 2026 and tracks 2,176 professional contacts across them, including 934 with verified work emails. San Diego is the largest hub.

This list covers diagnostic companies headquartered in Irvine, 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 19, 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 19, 2026 86% judged on-target in blind review

54Companies

2,176Contacts tracked

934Verified emails

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The 25 largest diagnostic companies based in Irvine, United States

Ranked by team size

Top 25 of 54 diagnostic companies based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to diagnostic 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	MP Biomedicals	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	501-1,000	604 contacts →
	Indirect evidence “MP Biomedicals is dedicated to giving scientists and researchers innovative, quality tools and superior service to aid them in their quest for ground-breaking discovery and…” Source: RevenueBase Database · checked Sep 19, 2026
2	Mdxhealth	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	201-500	273 contacts →
	Strong evidence “Mdxhealth is a multinational healthcare company that provides actionable molecular diagnostic information to personalize the diagnosis and treatment of cancer.” Source: RevenueBase Database · checked Sep 19, 2026
3	Pathnostics	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	201-500	195 contacts →
	Strong evidence “Established in 2011 in Irvine, California, Pathnostics is a leading precision diagnostic testing and development company providing solutions for infectious disease and cancer…” Source: RevenueBase Database · checked Sep 19, 2026
4	Innova Electronics Corp	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	153 contacts →
	Strong evidence “THE AUTOMOTIVE AFTERMARKET INDUSTRY LEADER Innova Electronics Corporation is a leading supplier of test equipment and diagnostic reporting for the automotive aftermarket, offering…” Source: RevenueBase Database · checked Sep 19, 2026
5	Nitto Avecia Pharma Services	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	100 contacts →
	Indirect evidence “Nitto Avecia Pharma Services is your single source for analytical services for the pharma, biotech, and medical device industries.” Source: RevenueBase Database · checked Sep 19, 2026
6	Fluxergy	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	86 contacts →
	Indirect evidence “Fluxergy was founded 10 years ago with a vision to democratize the world of laboratory testing, by making testing more accessible and affordable.” Source: RevenueBase Database · checked Sep 19, 2026
7	Helio Genomics	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	69 contacts →
	Indirect evidence “Helio Genomics is a commercial-stage AI-powered precision cancer detection company focused on improving outcomes through early cancer detection, disease surveillance, and…” Source: RevenueBase Database · checked Sep 19, 2026
8	Craif INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	46 contacts →
	Strong evidence “Craif is a molecular diagnostics company leveraging miRNA and machine learning for early cancer detection.” Source: RevenueBase Database · checked Sep 19, 2026
9	Biomerica, INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	45 contacts →
	Strong evidence “Biomerica, is a global biomedical company that develops, manufactures and markets advanced diagnostic products used at the point-of-care (in home and in physicians’ offices) and…” Source: RevenueBase Database · checked Sep 19, 2026
10	Healthquest Esoterics	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	37 contacts →
	Indirect evidence “HealthQuest Esoterics is a licensed and accredited full-service medical reference laboratory with an extensive test menu of specialty assays.” Source: RevenueBase Database · checked Sep 19, 2026
11	Monarch Diagnostics	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	35 contacts →
	Strong evidence “Monarch Diagnostics is a diagnostic testing laboratory committed to delivering accurate, timely results that support recovery-focused care.” Source: RevenueBase Database · checked Sep 19, 2026
12	Emeritusdx	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	30 contacts →
	Strong evidence “EmeritusDX is a cancer diagnostics company that is driven by our obsession to continuously improve patient care.” Source: RevenueBase Database · checked Sep 19, 2026
13	Metrolaser, INC	Strong evidence	Irvine, United StatesHQ checked Sep 19, 2026	11-50	28 contacts →
	Strong evidence “MetroLaser's scientists develop and deliver state-of-the-art optical diagnostic solutions for a broad range of applications in defense, aerospace, structural mechanics, and noise…” Source: RevenueBase Database · checked Sep 19, 2026
14	Burning Rock DX	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	501-1,000	24 contacts →
	Strong evidence “Burning Rock Biotech Limited (NASDAQ: BNR ) Burning Rock Biotech is a global diagnostics company specializing in next-generation sequencing (NGS) technology for precision oncology.” Source: RevenueBase Database · checked Sep 19, 2026
15	Bridge Diagnostics	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	23 contacts →
	Strong evidence “Bridge Diagnostics is a national healthcare services company providing clinical diagnostic information, clinic workflow solutions, population health management tools, and…” Source: RevenueBase Database · checked Sep 19, 2026
16	Bach Diagnostics	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	23 contacts →
	Strong evidence “Bach Diagnostics is a clinical pathology laboratory based out of Irvine, California.” Source: RevenueBase Database · checked Sep 19, 2026
17	Researchdx	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	11-50	23 contacts →
	Strong evidence “ResearchDx is a Contract Diagnostics Organization (CDO) for the biopharmaceutical and diagnostic industries.” Source: RevenueBase Database · checked Sep 19, 2026
18	Advanbio	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	11-50	14 contacts →
	Strong evidence “AdvanBio Inc, a subsidiary of Autobio Diagnostics in the U.S is a fast-growing biotechnological company based in Irvine, CA.” Source: RevenueBase Database · checked Sep 19, 2026
19	Artemis DNA	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	12 contacts →
	Strong evidence “Artemis DNA is a full service, Clinical Laboratory Improvement Amendments (CLIA) certified, College of American Pathologists (CAP) accredited, high-complexity clinical diagnostic…” Source: RevenueBase Database · checked Sep 19, 2026
20	Shoreline Diagnostics	Strong evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	1-10	11 contacts →
	Strong evidence “Full-spectrum PCR molecular diagnostics laboratory serving clinicians and healthcare providers across the country.” Source: RevenueBase Database · checked Sep 19, 2026
21	Cellum Biomedical INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
22	Hugenx	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “HUGENX is reshaping the landscape of laboratory information systems.” Source: RevenueBase Database · checked Sep 19, 2026
23	Smarthealth DX	Strong evidence	Irvine, United StatesHQ checked Sep 19, 2026	11-50	8 contacts →
	Strong evidence “SmartHealth Dx develops precision diagnostics that address unmet clinical needs in vascular, metabolic, and oncological diseases.” Source: RevenueBase Database · checked Sep 19, 2026
24	Mountain View Medical Laboratory	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	8 contacts →
	Indirect evidence “At Mountain View Medical Laboratory (MVML) we are dedicated to providing comprehensive and state-of-the-art clinical laboratory services to our providers, patients and partners.” Source: RevenueBase Database · checked Sep 19, 2026
25	Pacific Medical Laboratory INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: diagnostic companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names diagnostic companies.
Partial evidence: Its own public description names part of diagnostic companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name diagnostic companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 54 diagnostic companies based in Irvine, United States

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Diagnostic companies based in Irvine, United States at a glance

As of Sep 19, 2026

42.9%Verified-email coverage

40.3Average contacts per company

11-50Median size (employees)

151.9%Largest-city concentration · San Diego

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Irvine, so it is reported there. Company counts and contact totals on this page are exact for Irvine, over 54 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among diagnostic 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 Irvine, United States whose own description of what they do matches “diagnostic 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 diagnostic 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 diagnostic companies, and records with no verified work email. Companies headquartered outside Irvine 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, 934 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Diagnostic companies by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names diagnostic 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 diagnostic companies are there based in Irvine, United States?

RevenueBase identified 54 diagnostic companies headquartered in Irvine, 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?

MP Biomedicals, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most diagnostic companies?

San Diego leads with 82 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 934 verified decision-maker contacts tracked across these 54 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.