Company lists · Data refreshed September 2026
Top 25 Nuclear decommissioning contractors based in the United States
RevenueBase identified 81 company matches for nuclear decommissioning contractors associated with the United States as of September 2026 and tracks 4,680 professional contacts across them, including 616 with verified work emails. Oak Ridge is the largest hub.
This list covers company matches for nuclear decommissioning contractors 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 17, 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.
The 25 largest nuclear decommissioning contractors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,254 contacts → | ||||
Exact match “EnergySolutions is an international nuclear services company headquartered in Salt Lake City, Utah, and Charlotte, North Carolina, with operations across the United States and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 2 | 245 contacts → | ||||
Exact match “Founded in 1977 Sonic Systems International (SSI) is a full-service quality-consulting firm serving the nuclear power generation utility industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 3 | 233 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 4 | 162 contacts → | ||||
Exact match “Spectra Tech is an engineering, environmental, and nuclear services company that focuses on providing high quality and cost-effective technical solutions for our Federal…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 5 | 129 contacts → | ||||
Exact match “Hi Tech Solutions provides services to the nuclear power generation industry in four main areas: outage services (plant outages and reactor maintenance), nuclear fuel cycle…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 6 | 118 contacts → | ||||
Exact match “At Atkins Nuclear Solutions US, we offer client solutions crafted by the best engineers and specialists in the industry, served with truly exceptional customer service.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 7 | 116 contacts → | ||||
Exact match “NAC International Inc.(NAC) is an industry-leading provider of engineering, consulting, and nuclear fuel management solutions for nuclear facility operators, fuel cycle companies…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 8 | 104 contacts → | ||||
Exact match “HukariAscendent is a technical consulting and engineering company specializing in comprehensive engineering and technical services associated with the nuclear industry and power…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 9 | 61 contacts → | ||||
Exact match “Trifecta offers a turn-key approach to contracting, providing all the services you need for decommissioning, environmental remediation, demolition and site work.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 10 | 54 contacts → | ||||
Exact match “The Nuclear & Environmental Group, part of Huntington Ingalls Industries' Technical Solutions division, manages environmental issues and is an industry leader in providing the DOE…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 11 | 47 contacts → | ||||
Exact match “EXCEL has evolved over the last four decades to meet the needs of the nuclear energy industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 12 | 38 contacts → | ||||
Exact match “Established in 1987, Master-Lee Energy Services was founded to provide the commercial Nuclear Power Industry with engineering, reactor services, decontamination, Reactor Coolant…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 13 | 36 contacts → | ||||
Exact match “At Paschal Solutions, we are more than engineers-we are problem solvers, innovators, and trusted partners in providing nuclear safety and specialized nuclear engineering technical…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 14 | 33 contacts → | ||||
Exact match “Founded in 1979 and now an EnergySolutions company, WMG, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 15 | 24 contacts → | ||||
Exact match “America's Premier Demolition, Asbestos Abatement, Nuclear Decommissioning and Emergency Response company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 16 | 20 contacts → | ||||
Exact match “A-Line E.D.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 17 | 19 contacts → | ||||
Exact match “We are a global leader in specialized demolition and decommissioning services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 18 | 13 contacts → | ||||
Exact match “Austin Master Services LLC (AMS), is a full service, comprehensive environmental services firm.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 19 | 12 contacts → | ||||
Exact match “Worldwide oil and gas decommissioning consulting services including Abandonment Liability Studies, Asset Retirement Obligation Assessments (ARO), Decommissioning Liability Cost…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 20 | 12 contacts → | ||||
Exact match “EPM is a multi-discipline engineering company that provides cost-effective solutions for safe and reliable operation of nuclear power plants.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 21 | 11 contacts → | ||||
Exact match “Whether your goal is to maintain an existing reactor, decommission an old reactor, or design a new one, TransWare Enterprises Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 22 | 10 contacts → | ||||
Exact match “Aecon is a North American construction and infrastructure development company with global experience – transforming vision into reality.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 23 | 10 contacts → | ||||
Exact match “Our Company TriVis Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 24 | 9 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 17, 2026 · View company records in RevenueBase | |||||
| 25 | 9 contacts → | ||||
Exact match “Capital Energy Group, LLC (CEG) is a Woman Owned Small Business Enterprise, privately held company that specializes in niche projects performing Commercial and Federal Nuclear…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “nuclear decommissioning contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 81 nuclear decommissioning contractors based in the United States
See the full list, filter by size, metro and specialty, and access 616 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Nuclear decommissioning contractors based in the United States at a glance
As of Sep 17, 2026Companies by employee count
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 81 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 “nuclear decommissioning contractors” 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 616 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 17, 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 “nuclear decommissioning contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many nuclear decommissioning contractors are there based in the United States?
RevenueBase identified 81 company matches for nuclear decommissioning contractors 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?
Energysolutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most nuclear decommissioning contractors?
Oak Ridge leads with 5 company records, followed by Charlotte (4) and West Valley (3).
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 616 professional contacts with verified work emails tracked across these 81 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 17, 2026.
Ready to reach these companies? Verified emails and direct dials for all 81 nuclear decommissioning contractors based in the United States. Start with a free account, no credit card.
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Nuclear decommissioning contractors by geography
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Nuclear decommissioning contractors based in France
- Nuclear decommissioning contractors based in Germany
- Nuclear decommissioning contractors based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
Company intelligence · public preview
Top 25 nuclear decommissioning contractors based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 81 matching company records for nuclear decommissioning contractors based in the United States, with 4,680 tracked contacts and 616 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 17, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 nuclear decommissioning contractors based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Energysolutionsenergysolutions.comHQ: Salt Lake City, UT, United StatesReported employees: 1,001-5,000 | Salt Lake City, UT, United States | 1,001-5,000 | Exact match | 1,254 contacts → |
“EnergySolutions is an international nuclear services company headquartered in Salt Lake City, Utah, and Charlotte, North Carolina, with operations across the United States and…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Sonic Systemssonicsystems.comHQ: Wilmington, NC, United StatesReported employees: 501-1,000 | Wilmington, NC, United States | 501-1,000 | Exact match | 245 contacts → |
“Founded in 1977 Sonic Systems International (SSI) is a full-service quality-consulting firm serving the nuclear power generation utility industry.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Perma-Fix Environmental Services, INCperma-fix.comHQ: Oak Ridge, TN, United StatesReported employees: 201-500 | Oak Ridge, TN, United States | 201-500 | Exact match | 233 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 4 |  Spectra Tech, INCspectratechinc.comHQ: Oak Ridge, TN, United StatesReported employees: 201-500 | Oak Ridge, TN, United States | 201-500 | Exact match | 162 contacts → |
“Spectra Tech is an engineering, environmental, and nuclear services company that focuses on providing high quality and cost-effective technical solutions for our Federal…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  HI Tech Solutionshtsnuclear.comHQ: Kennewick, WA, United StatesReported employees: 501-1,000 | Kennewick, WA, United States | 501-1,000 | Exact match | 129 contacts → |
“Hi Tech Solutions provides services to the nuclear power generation industry in four main areas: outage services (plant outages and reactor maintenance), nuclear fuel cycle…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Atkins Nuclear Solutions USatkinsglobal.comHQ: Charlotte, NC, United StatesReported employees: 51-200 | Charlotte, NC, United States | 51-200 | Exact match | 118 contacts → |
“At Atkins Nuclear Solutions US, we offer client solutions crafted by the best engineers and specialists in the industry, served with truly exceptional customer service.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  NAC Internationalnacintl.comHQ: Peachtree Corners, GA, United StatesReported employees: 51-200 | Peachtree Corners, GA, United States | 51-200 | Exact match | 116 contacts → |
“NAC International Inc.(NAC) is an industry-leading provider of engineering, consulting, and nuclear fuel management solutions for nuclear facility operators, fuel cycle companies…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Hukariascendenthukari.comHQ: Wheat Ridge, CO, United StatesReported employees: 51-200 | Wheat Ridge, CO, United States | 51-200 | Exact match | 104 contacts → |
“HukariAscendent is a technical consulting and engineering company specializing in comprehensive engineering and technical services associated with the nuclear industry and power…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Trifecta Services Companytrifectainc.com HQ: Charlotte, NC, United StatesReported employees: 201-500 | Charlotte, NC, United States | 201-500 | Exact match | 61 contacts → |
“Trifecta offers a turn-key approach to contracting, providing all the services you need for decommissioning, environmental remediation, demolition and site work.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  HII Technical Solutions Nuclear & Environmental Grouptsd.huntingtoningalls.comHQ: Newport News, VA, United StatesReported employees: 201-500 | Newport News, VA, United States | 201-500 | Exact match | 54 contacts → |
“The Nuclear & Environmental Group, part of Huntington Ingalls Industries' Technical Solutions division, manages environmental issues and is an industry leader in providing the DOE…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Excel Services Corporationexcelservices.comHQ: Rockville, MD, United StatesReported employees: 51-200 | Rockville, MD, United States | 51-200 | Exact match | 47 contacts → |
“EXCEL has evolved over the last four decades to meet the needs of the nuclear energy industry.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Master-Lee Energy Services Corporationmasterlee.comHQ: Latrobe, PA, United StatesReported employees: 201-500 | Latrobe, PA, United States | 201-500 | Exact match | 38 contacts → |
“Established in 1987, Master-Lee Energy Services was founded to provide the commercial Nuclear Power Industry with engineering, reactor services, decontamination, Reactor Coolant…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Paschal Solutions, INCpaschalsolutions.comHQ: Oak Ridge, TN, United StatesReported employees: 51-200 | Oak Ridge, TN, United States | 51-200 | Exact match | 36 contacts → |
“At Paschal Solutions, we are more than engineers-we are problem solvers, innovators, and trusted partners in providing nuclear safety and specialized nuclear engineering technical…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Wmg, INCwmginc.comHQ: Peekskill, NY, United StatesReported employees: 11-50 | Peekskill, NY, United States | 11-50 | Exact match | 33 contacts → |
“Founded in 1979 and now an EnergySolutions company, WMG, Inc.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Northstar CG LPnorthstar.comHQ: Issaquah, WA, United StatesReported employees: 51-200 | Issaquah, WA, United States | 51-200 | Exact match | 24 contacts → |
“America's Premier Demolition, Asbestos Abatement, Nuclear Decommissioning and Emergency Response company.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Waterloo, United StatesReported employees: 51-200 | Waterloo, United States | 51-200 | Exact match | 20 contacts → |
“A-Line E.D.S.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Bluegrass Companiesbluegrassbit.comHQ: Greenville, AL, United StatesReported employees: 51-200 | Greenville, AL, United States | 51-200 | Exact match | 19 contacts → |
“We are a global leader in specialized demolition and decommissioning services.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Austin Master Services LLCaustinmasterservices.com HQ: Pottstown, PA, United StatesReported employees: 11-50 | Pottstown, PA, United States | 11-50 | Exact match | 13 contacts → |
“Austin Master Services LLC (AMS), is a full service, comprehensive environmental services firm.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  TSB Offshore INCtsboffshore.comHQ: The Woodlands, TX, United StatesReported employees: 11-50 | The Woodlands, TX, United States | 11-50 | Exact match | 12 contacts → |
“Worldwide oil and gas decommissioning consulting services including Abandonment Liability Studies, Asset Retirement Obligation Assessments (ARO), Decommissioning Liability Cost…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Engineering Planning And Management, INCepm-inc.com HQ: Framingham, MA, United StatesReported employees: 51-200 | Framingham, MA, United States | 51-200 | Exact match | 12 contacts → |
“EPM is a multi-discipline engineering company that provides cost-effective solutions for safe and reliable operation of nuclear power plants.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Transware Enterprises INCtransware.netHQ: St. Louis, MO, United StatesReported employees: 11-50 | St. Louis, MO, United States | 11-50 | Exact match | 11 contacts → |
“Whether your goal is to maintain an existing reactor, decommission an old reactor, or design a new one, TransWare Enterprises Inc.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Aecon, Charlotte NC Officeaecon.comHQ: Charlotte, NC, United StatesReported employees: Not recorded | Charlotte, NC, United States | Not recorded | Exact match | 10 contacts → |
“Aecon is a North American construction and infrastructure development company with global experience – transforming vision into reality.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Trivis INCtrivisinc.comHQ: Birmingham, AL, United StatesReported employees: 51-200 | Birmingham, AL, United States | 51-200 | Exact match | 10 contacts → |
“Our Company TriVis Inc.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  CN Associates, INCcnassociates.netHQ: Manchester, MA, United StatesReported employees: 11-50 | Manchester, MA, United States | 11-50 | Exact match | 9 contacts → |
“At CN Associates, we are dedicated to protecting people, property and the environment through delivery of superior, cost-effective and compliant radiological remediation…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Capital Energy Group, LLCcapitalenergygroup.com HQ: Knoxville, TN, United StatesReported employees: 11-50 | Knoxville, TN, United States | 11-50 | Exact match | 9 contacts → |
“Capital Energy Group, LLC (CEG) is a Woman Owned Small Business Enterprise, privately held company that specializes in niche projects performing Commercial and Federal Nuclear…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 81 company matches
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Nuclear decommissioning contractors: dataset insights
September 17, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
81 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 81 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 17, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for nuclear decommissioning contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many nuclear decommissioning contractors did RevenueBase find based in the United States?
The saved snapshot records 81 matching company records, 4,680 tracked contacts and 616 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 17, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Nuclear decommissioning contractors by geography
Cite this list
RevenueBase Data Team. Top 25 nuclear decommissioning contractors based in the United States. Snapshot: September 17, 2026. https://revenuebase.ai/companies/nuclear-decommissioning-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Nuclear decommissioning contractors based in France
- Nuclear decommissioning contractors based in Germany
- Nuclear decommissioning contractors based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
Company intelligence · public preview
Top 25 nuclear decommissioning contractors based in the United States
RevenueBase records 81 matching company records for nuclear decommissioning contractors based in the United States, with 4,680 tracked contacts and 616 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 17, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 nuclear decommissioning contractors based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Energysolutionsenergysolutions.com HQ: Salt Lake City, UT, United StatesReported employees: 1,001-5,000 | Salt Lake City, UT, United States | 1,001-5,000 | Exact match | 1,254 contacts → |
“EnergySolutions is an international nuclear services company headquartered in Salt Lake City, Utah, and Charlotte, North Carolina, with operations across the United States and…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Sonic Systemssonicsystems.com HQ: Wilmington, NC, United StatesReported employees: 501-1,000 | Wilmington, NC, United States | 501-1,000 | Exact match | 245 contacts → |
“Founded in 1977 Sonic Systems International (SSI) is a full-service quality-consulting firm serving the nuclear power generation utility industry.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Perma-Fix Environmental Services, INCperma-fix.com HQ: Oak Ridge, TN, United StatesReported employees: 201-500 | Oak Ridge, TN, United States | 201-500 | Exact match | 233 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 4 | Spectra Tech, INCspectratechinc.com HQ: Oak Ridge, TN, United StatesReported employees: 201-500 | Oak Ridge, TN, United States | 201-500 | Exact match | 162 contacts → |
“Spectra Tech is an engineering, environmental, and nuclear services company that focuses on providing high quality and cost-effective technical solutions for our Federal…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HI Tech Solutionshtsnuclear.com HQ: Kennewick, WA, United StatesReported employees: 501-1,000 | Kennewick, WA, United States | 501-1,000 | Exact match | 129 contacts → |
“Hi Tech Solutions provides services to the nuclear power generation industry in four main areas: outage services (plant outages and reactor maintenance), nuclear fuel cycle…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Atkins Nuclear Solutions USatkinsglobal.com HQ: Charlotte, NC, United StatesReported employees: 51-200 | Charlotte, NC, United States | 51-200 | Exact match | 118 contacts → |
“At Atkins Nuclear Solutions US, we offer client solutions crafted by the best engineers and specialists in the industry, served with truly exceptional customer service.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | NAC Internationalnacintl.com HQ: Peachtree Corners, GA, United StatesReported employees: 51-200 | Peachtree Corners, GA, United States | 51-200 | Exact match | 116 contacts → |
“NAC International Inc.(NAC) is an industry-leading provider of engineering, consulting, and nuclear fuel management solutions for nuclear facility operators, fuel cycle companies…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Hukariascendenthukari.com HQ: Wheat Ridge, CO, United StatesReported employees: 51-200 | Wheat Ridge, CO, United States | 51-200 | Exact match | 104 contacts → |
“HukariAscendent is a technical consulting and engineering company specializing in comprehensive engineering and technical services associated with the nuclear industry and power…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Trifecta Services Companytrifectainc.com HQ: Charlotte, NC, United StatesReported employees: 201-500 | Charlotte, NC, United States | 201-500 | Exact match | 61 contacts → |
“Trifecta offers a turn-key approach to contracting, providing all the services you need for decommissioning, environmental remediation, demolition and site work.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HII Technical Solutions Nuclear & Environmental Grouptsd.huntingtoningalls.com HQ: Newport News, VA, United StatesReported employees: 201-500 | Newport News, VA, United States | 201-500 | Exact match | 54 contacts → |
“The Nuclear & Environmental Group, part of Huntington Ingalls Industries' Technical Solutions division, manages environmental issues and is an industry leader in providing the DOE…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Excel Services Corporationexcelservices.com HQ: Rockville, MD, United StatesReported employees: 51-200 | Rockville, MD, United States | 51-200 | Exact match | 47 contacts → |
“EXCEL has evolved over the last four decades to meet the needs of the nuclear energy industry.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Master-Lee Energy Services Corporationmasterlee.com HQ: Latrobe, PA, United StatesReported employees: 201-500 | Latrobe, PA, United States | 201-500 | Exact match | 38 contacts → |
“Established in 1987, Master-Lee Energy Services was founded to provide the commercial Nuclear Power Industry with engineering, reactor services, decontamination, Reactor Coolant…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Paschal Solutions, INCpaschalsolutions.com HQ: Oak Ridge, TN, United StatesReported employees: 51-200 | Oak Ridge, TN, United States | 51-200 | Exact match | 36 contacts → |
“At Paschal Solutions, we are more than engineers-we are problem solvers, innovators, and trusted partners in providing nuclear safety and specialized nuclear engineering technical…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Wmg, INCwmginc.com HQ: Peekskill, NY, United StatesReported employees: 11-50 | Peekskill, NY, United States | 11-50 | Exact match | 33 contacts → |
“Founded in 1979 and now an EnergySolutions company, WMG, Inc.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Northstar CG LPnorthstar.com HQ: Issaquah, WA, United StatesReported employees: 51-200 | Issaquah, WA, United States | 51-200 | Exact match | 24 contacts → |
“America's Premier Demolition, Asbestos Abatement, Nuclear Decommissioning and Emergency Response company.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Waterloo, United StatesReported employees: 51-200 | Waterloo, United States | 51-200 | Exact match | 20 contacts → |
“A-Line E.D.S.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Bluegrass Companiesbluegrassbit.com HQ: Greenville, AL, United StatesReported employees: 51-200 | Greenville, AL, United States | 51-200 | Exact match | 19 contacts → |
“We are a global leader in specialized demolition and decommissioning services.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Austin Master Services LLCaustinmasterservices.com HQ: Pottstown, PA, United StatesReported employees: 11-50 | Pottstown, PA, United States | 11-50 | Exact match | 13 contacts → |
“Austin Master Services LLC (AMS), is a full service, comprehensive environmental services firm.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | TSB Offshore INCtsboffshore.com HQ: The Woodlands, TX, United StatesReported employees: 11-50 | The Woodlands, TX, United States | 11-50 | Exact match | 12 contacts → |
“Worldwide oil and gas decommissioning consulting services including Abandonment Liability Studies, Asset Retirement Obligation Assessments (ARO), Decommissioning Liability Cost…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Engineering Planning And Management, INCepm-inc.com HQ: Framingham, MA, United StatesReported employees: 51-200 | Framingham, MA, United States | 51-200 | Exact match | 12 contacts → |
“EPM is a multi-discipline engineering company that provides cost-effective solutions for safe and reliable operation of nuclear power plants.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Transware Enterprises INCtransware.net HQ: St. Louis, MO, United StatesReported employees: 11-50 | St. Louis, MO, United States | 11-50 | Exact match | 11 contacts → |
“Whether your goal is to maintain an existing reactor, decommission an old reactor, or design a new one, TransWare Enterprises Inc.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Aecon, Charlotte NC Officeaecon.com HQ: Charlotte, NC, United StatesReported employees: Not recorded | Charlotte, NC, United States | Not recorded | Exact match | 10 contacts → |
“Aecon is a North American construction and infrastructure development company with global experience – transforming vision into reality.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Trivis INCtrivisinc.com HQ: Birmingham, AL, United StatesReported employees: 51-200 | Birmingham, AL, United States | 51-200 | Exact match | 10 contacts → |
“Our Company TriVis Inc.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | CN Associates, INCcnassociates.net HQ: Manchester, MA, United StatesReported employees: 11-50 | Manchester, MA, United States | 11-50 | Exact match | 9 contacts → |
“At CN Associates, we are dedicated to protecting people, property and the environment through delivery of superior, cost-effective and compliant radiological remediation…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Capital Energy Group, LLCcapitalenergygroup.com HQ: Knoxville, TN, United StatesReported employees: 11-50 | Knoxville, TN, United States | 11-50 | Exact match | 9 contacts → |
“Capital Energy Group, LLC (CEG) is a Woman Owned Small Business Enterprise, privately held company that specializes in niche projects performing Commercial and Federal Nuclear…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 81 company matches
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Nuclear decommissioning contractors: dataset insights
September 17, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
81 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 81 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 17, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for nuclear decommissioning contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many nuclear decommissioning contractors did RevenueBase find based in the United States?
The saved snapshot records 81 matching company records, 4,680 tracked contacts and 616 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 17, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Nuclear decommissioning contractors by geography
Cite this list
RevenueBase Data Team. Top 25 nuclear decommissioning contractors based in the United States. Snapshot: September 17, 2026. https://revenuebase.ai/companies/nuclear-decommissioning-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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