Company lists · Data refreshed September 2026
Top 25 Health physics consultancies worldwide
RevenueBase identified 895 health physics consultancies worldwide as of September 2026 and tracks 9,368 professional contacts across them, including 3,569 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers health physics consultancies worldwide, 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 28, 2026. Country and city lists for health physics consultancies follow the table.
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.
The 25 largest health physics consultancies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 998 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 296 contacts → | ||||
Indirect evidence “Expert in risk prevention in the nuclear environment, the CERAP Group brings together through its various entities a range of expertise contributing to the protection of people…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 209 contacts → | ||||
Partial evidence “Hillmann has been a well-recognized leader in the Environmental Health & Safety, Due Diligence & Remediation Management, and Construction Services industries since 1985.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 191 contacts → | ||||
Indirect evidence “LANDAUER offers a comprehensive spectrum of radiation monitoring and consulting solutions, tailored to your specific needs, to significantly reduce the burden of compliance and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 170 contacts → | ||||
Partial evidence “EH & E delivers integrated environmental, engineering, and health and safety solutions that help businesses and institutions safeguard their assets, improve operations and boost…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 169 contacts → | ||||
Indirect evidence “A Previne é uma empresa 100% brasileira com atuação na área de consultoria em saúde, segurança e meio ambiente (SSMA), higiene ocupacional e gerenciamento de riscos com…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 162 contacts → | ||||
Indirect evidence “We're not just service providers; we're your long-term partners in creating a sustainable, compliant, and efficient future for your assets.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 162 contacts → | ||||
Indirect evidence “Spectra Tech is an engineering, environmental, and nuclear services company that focuses on providing high quality and cost-effective technical solutions for our Federal…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 142 contacts → | ||||
Partial evidence “As the first company to attempt and ultimately succeed with the national footprint model in the diagnostic medical physics industry, we are a diverse team of over 100 individuals…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 139 contacts → | ||||
Indirect evidence “RSCS, now a division of Allied Power, offers expertise in all aspects of radiation safety and radiation measurement applications.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 109 contacts → | ||||
Partial evidence “In May 2016, Dade Moeller joined NV5 to integrate our safety & health, radiation protection, and environmental quality capabilities with NV5’s engineering, infrastructure, and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 107 contacts → | ||||
Indirect evidence “ASCND accompagne les acteurs de la santé et de l’industrie dans leurs enjeux de sécurité, qualité et performance.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 97 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 93 contacts → | ||||
Indirect evidence “Banda Group International (BGI), LLC is a world class technical and project management support services company serving government and private sector clients around the globe.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 87 contacts → | ||||
Indirect evidence “RDC has provided world-class radiation monitoring since 1949.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 84 contacts → | ||||
Strong evidence “Our mission is to transform the health and safety of our communities by providing comprehensive medical physics and radiation safety solutions to our clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 79 contacts → | ||||
Partial evidence “Established in 1980, Mabbett & Associates, Inc.(Mabbett) is a recognized leader in delivering comprehensive environmental, health, and safety consulting and engineering services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 78 contacts → | ||||
Partial evidence “ECOH is a highly respected Canadian environmental, health and safety consulting company specializing in environmental management, hazardous materials, and occupational hygiene and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 74 contacts → | ||||
Partial evidence “Occupational Services, Incorporated is a San Diego-based professional consulting firm providing services in the areas of environmental compliance, occupational health and safety…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 64 contacts → | ||||
Indirect evidence “Radiation Protection Ionizing Radiation Dosimetry Ionizing Radiation Protection Design” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 62 contacts → | ||||
Indirect evidence “Da oltre trent’anni Campoverde eroga servizi alle aziende nelle aree Ambiente, Sicurezza, Sanità e Ricerca.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 58 contacts → | ||||
Partial evidence “ALARA Expertise brings healthcare providers and industry a complete set of services and risk management solutions related to ionizing radiations (RI).” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 58 contacts → | ||||
Indirect evidence “Signature Safety is a mid-sized EHS Consulting firm, with experience & education brought to it by its founders that stretches back over 30 years.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 57 contacts → | ||||
Indirect evidence “Whitman is a full-service environmental, engineering, energy, waste management and EH & S compliance consulting firm with more than 37 years of professional experience.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 57 contacts → | ||||
Indirect evidence “We are committed to the total wellbeing of your employees.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: health physics consultancies. 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 health physics consultancies.
- Partial evidence
- Its own public description names part of health physics consultancies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name health physics consultancies. 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.
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Health physics consultancies worldwide at a glance
As of Sep 28, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 health physics consultancies, 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.
- Coverage
- Every country. Country and city lists for health physics consultancies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “health physics consultancies”. 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 health physics consultancies), 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 health physics consultancies, and records with no verified work email.
- 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, 3,569 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 28, 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.
Health physics consultancies by location
7 lists · largest firstEvery Health physics consultancies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Health physics consultancies based in the United States262
- Health physics consultancies based in Brazil91
- Health physics consultancies based in the United Kingdom48
- Health physics consultancies based in Italy41
- Health physics consultancies based in France40
- Health physics consultancies based in Canada34
- Health physics consultancies based in Australia26
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 health physics consultancies, 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 health physics consultancies are there worldwide?
RevenueBase identified 895 health physics consultancies worldwide 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?
Mirion, headquartered in Atlanta, tops this list with the largest team on record.
Which country has the most health physics consultancies?
The United States leads with 262 companies, followed by Brazil (91) and the United Kingdom (48). Every health physics consultancies list by country and city is linked on this page.
Which city has the most health physics consultancies?
Sao Paulo leads with 13 headquartered companies, followed by Porto Alegre (8) and Atlanta (6).
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 3,569 verified decision-maker contacts tracked across these 895 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 28, 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.