Company lists · Data refreshed September 2026

Top 25 Radiation protection consultancies based in the United States

Name: Radiation protection consultancies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 496 companies tracked

RevenueBase identified 496 radiation protection consultancies headquartered in the United States as of September 2026 and tracks 7,955 professional contacts across them, including 2,912 with verified work emails. Houston is the largest hub.

This list covers radiation protection consultancies 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 21, 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 21, 2026 86% judged on-target in blind review

496Companies

7,955Contacts tracked

2,912Verified emails

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The 25 largest radiation protection consultancies based in the United States

Ranked by team size

Top 25 of 496 radiation protection consultancies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to radiation protection consultancies: 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	Mirion	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1,001-5,000	998 contacts →
	Partial 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 21, 2026
2	Sonic Systems	Indirect evidence	Wilmington, NC, United StatesHQ checked Sep 21, 2026	501-1,000	245 contacts →
	Indirect evidence “Founded in 1977 Sonic Systems International (SSI) is a full-service quality-consulting firm serving the nuclear power generation utility industry.” Source: RevenueBase Database · checked Sep 21, 2026
3	Perma-Fix Environmental Services, INC	Indirect evidence	Oak Ridge, TN, United StatesHQ checked Sep 21, 2026	201-500	233 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
4	Hillmann Consulting, LLC	Indirect evidence	Union, NJ, United StatesHQ checked Sep 21, 2026	201-500	209 contacts →
	Indirect 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 21, 2026
5	Nelco Worldwide	Indirect evidence	Burlington, MA, United StatesHQ checked Sep 21, 2026	201-500	182 contacts →
	Indirect evidence “NELCO, an ISO 9001:2015 certified company, got its start in the 1930’s designing, manufacturing, and installing specialized products and services to meet the needs in the medical…” Source: RevenueBase Database · checked Sep 21, 2026
6	Environmental Health & Engineering	Indirect evidence	Newton, MA, United StatesHQ checked Sep 21, 2026	51-200	170 contacts →
	Indirect 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 21, 2026
7	Spectra Tech, INC	Indirect evidence	Oak Ridge, TN, United StatesHQ checked Sep 21, 2026	201-500	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 21, 2026
8	West Physics	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	51-200	142 contacts →
	Indirect 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 21, 2026
9	Radiation Safety & Control Services, INC Rscs	Partial evidence	Seabrook, NH, United StatesHQ checked Sep 21, 2026	201-500	139 contacts →
	Partial 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 21, 2026
10	Burlington Medical	Indirect evidence	Newport News, VA, United StatesHQ checked Sep 21, 2026	201-500	134 contacts →
	Indirect evidence “Burlington Medical engineers the highest quality and lightest weight lead-free aprons in the industry.” Source: RevenueBase Database · checked Sep 21, 2026
11	QSA Global, INC	Indirect evidence	Burlington, MA, United StatesHQ checked Sep 21, 2026	51-200	124 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
12	Unitech Services Group, INC	Partial evidence	Longmeadow, MA, United StatesHQ checked Sep 21, 2026	501-1,000	114 contacts →
	Partial evidence “UniTech is the world leader in radiological laundering and protective clothing programs.” Source: RevenueBase Database · checked Sep 21, 2026
13	Nv5 Dade Moeller	Strong evidence	Richland, WA, United StatesHQ checked Sep 21, 2026	1,001-5,000	109 contacts →
	Strong 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 21, 2026
14	Banda Group International, LLC	Indirect evidence	Mesa, AZ, United StatesHQ checked Sep 21, 2026	51-200	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 21, 2026
15	Radiation Detection Company RDC	Partial evidence	Georgetown, TX, United StatesHQ checked Sep 21, 2026	51-200	87 contacts →
	Partial evidence “RDC has provided world-class radiation monitoring since 1949.” Source: RevenueBase Database · checked Sep 21, 2026
16	ONE Physics	Partial evidence	Towson, MD, United StatesHQ checked Sep 21, 2026	51-200	84 contacts →
	Partial 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 21, 2026
17	EGG Medical	Strong evidence	Roseville, MN, United StatesHQ checked Sep 21, 2026	51-200	77 contacts →
	Strong evidence “At Egg Medical we believe that all interventional physicians, nurses and techs deserve better protection from scatter radiation in the lab.” Source: RevenueBase Database · checked Sep 21, 2026
18	Occupational Services, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	11-50	74 contacts →
	Indirect 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 21, 2026
19	SES Environmental	Indirect evidence	Fort Wayne, IN, United StatesHQ checked Sep 21, 2026	11-50	73 contacts →
	Indirect evidence “We are a full service EH & S consulting and contracting firm based in the Midwestern United States, serving companies throughout the world.” Source: RevenueBase Database · checked Sep 21, 2026
20	IES Safety, LLC	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 21, 2026	201-500	65 contacts →
	Indirect evidence “IES Safety, LLC delivers expert occupational safety and health consulting through seasoned professionals who help clients proactively manage risk and maintain regulatory…” Source: RevenueBase Database · checked Sep 21, 2026
21	Fauske & Associates	Indirect evidence	Burr Ridge, IL, United StatesHQ checked Sep 21, 2026	51-200	60 contacts →
	Indirect evidence “Fauske & Associates (FAI) is a world leader in nuclear, industrial and chemical process safety.” Source: RevenueBase Database · checked Sep 21, 2026
22	Golden Security Services	Indirect evidence	Hallandale Beach, FL, United StatesHQ checked Sep 21, 2026	11-50	59 contacts →
	Indirect evidence “Golden Security Services stands at the forefront of safeguarding radioactive sources throughout their entire lifecycle, blending personalized security solutions with strict…” Source: RevenueBase Database · checked Sep 21, 2026
23	Safex INC	Indirect evidence	Westerville, OH, United StatesHQ checked Sep 21, 2026	11-50	57 contacts →
	Indirect evidence “We are committed to the total wellbeing of your employees.” Source: RevenueBase Database · checked Sep 21, 2026
24	Carnow, Conibear & Assoc., LTD	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	11-50	52 contacts →
	Indirect evidence “Carnow, Conibear & Assoc, Ltd.(Carnow Conibear), a minority-owned, woman-owned and veteran-owned business, was established in 1975.” Source: RevenueBase Database · checked Sep 21, 2026
25	Colden Corporation	Indirect evidence	Blue Bell, PA, United StatesHQ checked Sep 21, 2026	11-50	52 contacts →
	Indirect evidence “Founded in 1996, Colden Corporation helps clients create and maintain safe and healthy workplaces.” Source: RevenueBase Database · checked Sep 21, 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: radiation protection 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 radiation protection consultancies.
Partial evidence: Its own public description names part of radiation protection consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name radiation protection 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.

Showing 25 of 496 radiation protection consultancies based in the United States

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Radiation protection consultancies based in the United States at a glance

As of Sep 21, 2026

36.6%Verified-email coverage

16.0Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

281

11-50

156

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 496 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 radiation protection 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “radiation protection 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 radiation protection 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 radiation protection consultancies, 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, 2,912 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 21, 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 radiation protection 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 radiation protection consultancies are there based in the United States?

RevenueBase identified 496 radiation protection consultancies 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?

Mirion, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most radiation protection consultancies?

Houston leads with 13 headquartered companies, followed by Atlanta (7) and Albuquerque (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 2,912 verified decision-maker contacts tracked across these 496 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 21, 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.