Company lists · Data refreshed September 2026

Top 25 Health physics instrument companies based in the United States

RevenueBase identified 98 company matches for health physics instrument companies associated with the United States as of September 2026 and tracks 2,298 professional contacts across them, including 1,049 with verified work emails. Oak Ridge is the largest hub.

This list covers company matches for health physics instrument 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 20, 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 20, 2026 How this list was built
98Companies
2,298Contacts tracked
1,049Verified emails
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The 25 largest health physics instrument companies based in the United States

Ranked by team size
Top 25 of 98 company matches for health physics instrument companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchAtlanta, GA, United StatesHQ recorded Sep 20, 20261,001-5,000998 contacts →

Exact match

“Mirion (NYSE: MIR) is a global leader in radiation safety, science and medicine, with a diverse portfolio of products and services that protects people and the planet from the…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchEverett, IL, United StatesHQ recorded Sep 20, 2026501-1,000177 contacts →

Exact match

“Keeping life’s critical devices ready to go at a moment’s notice.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchSeabrook, NH, United StatesHQ recorded Sep 20, 2026201-500139 contacts →

Exact match

“RSCS, now a division of Allied Power, offers expertise in all aspects of radiation safety and radiation measurement applications.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchGeorgetown, TX, United StatesHQ recorded Sep 20, 202651-20087 contacts →

Exact match

“RDC has provided world-class radiation monitoring since 1949.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchSweetwater, TX, United StatesHQ recorded Sep 20, 2026201-50080 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchWatertown, MA, United StatesHQ recorded Sep 20, 202651-20072 contacts →

Exact match

“Radiation Monitoring Devices, Inc.(RMD) is among the foremost experts in the fields of radiation detection and imaging, nuclear instrumentation, and non-destructive test equipment.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchMiddleton, United StatesHQ recorded Sep 20, 202651-20068 contacts →

Exact match

“Standard Imaging is a leading manufacturer of QA instruments for radiation-based treatments that improves patient safety and cancer treatments.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchAmherst, NY, United StatesHQ recorded Sep 20, 202651-20036 contacts →

Exact match

“MJW Corporation Inc.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchOak Ridge, TN, United StatesHQ recorded Sep 20, 202611-5034 contacts →

Exact match

“RbM Services, LLC has been manufacturing nuclear medical devices in East Tennessee for more than twenty years.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchSan Rafael, CA, United StatesHQ recorded Sep 20, 202651-20029 contacts →

Exact match

“Manufacturer of Test, Measurement, Nuclear and Life Sciences instrumentation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchLisle, IL, United StatesHQ recorded Sep 20, 202611-5024 contacts →

Exact match

“At Eichrom Technologies, we help our customers in nuclear industries to change the way they think.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchKalamazoo, MI, United StatesHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“Versant Medical Physics & Radiation Safety (Versant Physics) is a health service support company providing professional and technical specialists in all sub-specialties of medical…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchLynnwood, WA, United StatesHQ recorded Sep 20, 202651-20018 contacts →

Exact match

“Our Services: Daily Scientific Clinical Staffing - both long term onsite coverage or short term locums -Medical Physics Consultation -Remote & Onsite Dosimetry New…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchOceanside, NY, United StatesHQ recorded Sep 20, 202611-5018 contacts →

Exact match

“LND, Incorporated designs, engineers and manufactures gas-filled nuclear radiation detectors.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchMonrovia, CA, United StatesHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“Radcal History In 1975 the world was coming to appreciate the delicate balance between benefit and risk with regard to x-ray exposure.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchSpring Hill, FL, United StatesHQ recorded Sep 20, 20261-1016 contacts →

Exact match

“International Radiation Safety Consulting (IRSC) specializes in government safety approvals of instruments containing radioactive devices.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchIdaho Falls, ID, United StatesHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“International Isotopes produces radioactive source products for nuclear medicine, molecular imaging, cancer therapy, calibration sources & standards.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Sep 20, 20261-1011 contacts →

Exact match

“REPSS offers instrumentation sales, support, repair, calibration, and training to assist industrial hygiene, safety, health, and environmental professionals.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchEl Segundo, CA, United StatesHQ recorded Sep 20, 20261-1011 contacts →

Exact match

“Advetage Solutions is a supplier of radiation detection technology products and services, providing our customers 360- Solutions for health physics and safety concerns.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchSan Antonio, TX, United StatesHQ recorded Sep 20, 202611-5011 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchSterling, VA, United StatesHQ recorded Sep 20, 20261-1010 contacts →

Exact match

“Established in 1992, Polimaster continues to provide innovative radiation and nuclear measurement solutions to maintain the safety of personnel, assess the health of radiological…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchManchester, MA, United StatesHQ recorded Sep 20, 202611-509 contacts →

Exact match

“At CN Associates, we are dedicated to protecting people, property and the environment through delivery of superior, cost-effective and compliant radiological remediation…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchSt. Peters, MO, United StatesHQ recorded Sep 20, 202611-509 contacts →

Exact match

“Licensed Radiation Safety Consultants and Service Company established in 1978 supporting the needs of radiation safety programs for all research laboratories, medical facilities…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchCorvallis, OR, United StatesHQ recorded Sep 20, 202611-509 contacts →

Exact match

“RCD specializes in radiation safety and health physics.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchMansfield, OH, United StatesHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Rotunda Scientific Technologies™ LLC is dedicated to the fields of External Dosimetry, Radiation Detection, Radiation Protection and Spectroscopy.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 98 health physics instrument companies based in the United States

See the full list, filter by size, metro and specialty, and access 1,049 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Health physics instrument companies based in the United States at a glance

As of Sep 20, 2026
45.6%Verified-email coverage
23.4Average contacts per company
11-50Median size (employees)
4.1%Largest-city concentration · Oak Ridge
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
45
11-50
29
51-200
15
201-500
4
501-1,000
3
1,001-5,000
1

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 98 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 “health physics instrument 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 1,049 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 20, 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 “health physics instrument companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many health physics instrument companies are there based in the United States?

RevenueBase identified 98 company matches for health physics instrument 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?

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

Which city has the most health physics instrument companies?

Oak Ridge leads with 4 company records, followed by Cleveland (3) and Amherst (2).

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 1,049 professional contacts with verified work emails tracked across these 98 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 20, 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.