Company lists · Data refreshed September 2026
Top 25 Nuclear maintenance management software companies based in the United States
RevenueBase identified 49 nuclear maintenance management software companies headquartered in the United States as of September 2026 and tracks 14,669 professional contacts across them, including 965 with verified work emails and 5,255 with mobile numbers. Columbia is the largest hub.
This list covers nuclear maintenance management software companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 maintenance management software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | Westinghouse Electric CompanyPartial evidence | 10,898 | |||
“Westinghouse Electric Company is the world's leading supplier of safe and innovative nuclear technology.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,254 | ||||
“EnergySolutions is an international nuclear services company headquartered in Salt Lake City, Utah, and Charlotte, North Carolina, with operations across the United States and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 404 | ||||
“GSE Solutions supports nuclear power and clean-energy fleets worldwide through integrated engineering services and software that strengthen operational performance.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | Paragon Energy SolutionsPartial evidence | 234 | |||
“Paragon tackles the most difficult challenges of the nuclear industry-those faced by the current operating fleet as well as the next generation of advanced reactors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 168 | ||||
“With three decades of experience in this industry and domain, we understand the impact that asset integrity challenges can have on your operations.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 131 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | HI Tech SolutionsStrong evidence | 129 | |||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | NAC InternationalStrong evidence | 116 | |||
“NAC International Inc.(NAC) is an industry-leading provider of engineering, consulting, and nuclear fuel management solutions for nuclear facility operators, fuel cycle companies…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | GCR INCStrong evidence | 101 | |||
“Nuclear and Power Generation and Water Solution data management systems backed by a team of industry experts.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 46 | ||||
“Endevor is a growing software company that creates simple software to solve complex problems.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 40 | ||||
“Metanoia streamlines the maintenance process for asset-intensive companies by providing an interactive environment to find parts and other asset information.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | Wmg, INCIndirect evidence | 33 | |||
“Founded in 1979 and now an EnergySolutions company, WMG, Inc.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | Studsvik ScandpowerStrong evidence | 32 | |||
“Studsvik Scandpower Group is a subsidiary of Studsvik AB (STO:SVIK), and specializes in nuclear engineering simulation software that enables nuclear engineers to design nuclear…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 27 | ||||
“Mcmtech develops software solutions to help you track, manage, and maintain equipment, sites, and inventory with just a few clicks.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 26 | ||||
“CyberMetrics software solutions save time, save money and simplify your job.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | Park NuclearStrong evidence | 24 | |||
“Park Nuclear stands at the forefront of the Nuclear Power Industry, specializing in providing top-tier solutions for obsolescence management, strategic sourcing of hard-to-find…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | NuclearnPartial evidence | 23 | |||
“With over 60 reactors around the world relying on our technology, Nuclearn is built on one simple idea: nuclear deserves better tools.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Iddeal Concepts, INCIndirect evidence | 20 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | Pkmj Technical Services, INCPartial evidence | 14 | |||
“PKMJ is an organization of experienced personnel dedicated to supporting the Nuclear Power Industry.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Transware Enterprises INCIndirect evidence | 11 | |||
“Whether your goal is to maintain an existing reactor, decommission an old reactor, or design a new one, TransWare Enterprises Inc.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | Trivis INCIndirect evidence | 10 | |||
“Our Company TriVis Inc.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | VarassetPartial evidence | 9 | |||
“Varasset is a renowned software solution provider specializing in the power and communications sectors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Maintenance Strategies, INCIndirect evidence | 9 | |||
“Do you worry about equipment failures?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | MaxaccelStrong evidence | 7 | |||
“MaxAccel is the market leader in web-based Asset Maintenance Management and Regulatory Compliance software solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | Olav & Co., INCPartial evidence | 5 | |||
“With roots and expertise in the exacting nuclear energy industry, OLAV provides U.S.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 49 nuclear maintenance management software companies based in the United States
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Nuclear maintenance management software companies based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 nuclear maintenance management software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “nuclear maintenance management software companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among nuclear maintenance management software companies, 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 an evidence 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, 965 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 5, 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
How many nuclear maintenance management software companies are there based in the United States?
RevenueBase identified 49 nuclear maintenance management software companies 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?
Westinghouse Electric Company, headquartered in Cranberry Township, tops this list with the largest team on record.
Which city has the most nuclear maintenance management software companies?
Columbia leads with 3 headquartered companies, followed by Birmingham (2) and Los Angeles (2).
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 965 verified decision-maker contacts tracked across these 49 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 5, 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.
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