Company lists · Data refreshed November 2026

Top 24 Nuclear engineering consultants based in the United States

RevenueBase identified 362 company matches for nuclear engineering consultants associated with the United States as of November 2026 and tracks 58,566 professional contacts across them, including 11,878 with verified work emails. Houston is the largest hub.

This list covers company matches for nuclear engineering consultants 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 November 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
362Companies
58,566Contacts tracked
11,878Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 24 largest nuclear engineering consultants based in the United States

Ranked by team size
Top 24 of 362 company matches for nuclear engineering consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchReston, VA, United StatesHQ recorded Nov 5, 202610001+29,287 contacts →

Exact match

“Bechtel is a trusted engineering, construction and project management partner to industry and government.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchIssaquah, DE, United StatesHQ recorded Nov 5, 20261,001-5,0002,037 contacts →

Exact match

“NAES is the power generation industry’s largest independent services provider, with more than 40 years of experience managing risk and turning it into profits.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchMenlo Park, FL, United StatesHQ recorded Nov 5, 20261,001-5,0001,679 contacts →

Exact match

“In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSalt Lake City, UT, United StatesHQ recorded Nov 5, 20261,001-5,0001,285 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 · Nov 5, 2026 · View company records in RevenueBase
5Exact matchMclean, VA, United StatesHQ recorded Nov 5, 2026501-1,000542 contacts →

Exact match

“ARES Corporation is one of the foremost Engineering, Project Management, Reliability and Mission Assurance, IT Architecture and Security, and Software Solutions companies in the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchEmeryville, CA, United StatesHQ recorded Nov 5, 2026501-1,000524 contacts →

Exact match

“Dedicated to “Excellence in Engineering,” E2 Consulting Engineers, Inc.(E2) is a professional services firm established in 1988 specializing in a full spectrum of engineering…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchColumbia, MD, United StatesHQ recorded Nov 5, 2026201-500451 contacts →

Exact match

“GSE Solutions supports nuclear power and clean-energy fleets worldwide through integrated engineering services and software that strengthen operational performance.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchBaton Rouge, LA, United StatesHQ recorded Nov 5, 20265,001-10,000448 contacts →

Exact match

“Allied Power is dedicated to delivering best-in-class maintenance, modifications, and project services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchAlexandria, CT, United StatesHQ recorded Nov 5, 2026201-500379 contacts →

Exact match

“In 1964, a trio of visionary engineers, from Admiral Rickover's Naval nuclear propulsion program, set out to form a company built around technical excellence.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchOak Ridge, NM, United StatesHQ recorded Nov 5, 2026201-500314 contacts →

Exact match

“Founded in 2003, Edgewater Technical Associates, LLC (Edgewater) is a New Mexico-based small business headquartered in Los Alamos, NM, with a national footprint supporting complex…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchFort Worth, TX, United StatesHQ recorded Nov 5, 2026201-500252 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchOak Ridge, ID, United StatesHQ recorded Nov 5, 2026201-500246 contacts →

Exact match

“Boston Government Services, LLC (BGS) is an engineering, technology, and security firm providing mission-focused solutions for the clean energy, nuclear, and federal programs…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchWilmington, TX, United StatesHQ recorded Nov 5, 2026501-1,000244 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 · Nov 5, 2026 · View company records in RevenueBase
14Exact matchAlbuquerque, NM, United StatesHQ recorded Nov 5, 2026201-500205 contacts →

Exact match

“SMSI is a small business providing management and technical/engineering services to the DOE/NNSA, national laboratories, and industrial clients.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchOak Ridge, NM, United StatesHQ recorded Nov 5, 2026201-500169 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 · Nov 5, 2026 · View company records in RevenueBase
16Exact matchBlackfoot, ID, United StatesHQ recorded Nov 5, 2026201-500149 contacts →

Exact match

“Premier Technology, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchKennewick, WA, United StatesHQ recorded Nov 5, 2026501-1,000137 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 · Nov 5, 2026 · View company records in RevenueBase
18Exact matchAlbuquerque, TN, United StatesHQ recorded Nov 5, 202651-200132 contacts →

Exact match

“Founded in New Mexico in 1975, Los Alamos Technical Associates provides technical and project management services to a varied clientèle including federal agencies, state…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchSignal Hill, CA, United StatesHQ recorded Nov 5, 2026501-1,000132 contacts →

Exact match

“With more than a half-century in the nuclear business, is an expert in nuclear material handling and lifting equipment.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchKennesaw, GA, United StatesHQ recorded Nov 5, 202651-200123 contacts →

Exact match

“Established in 1978, ESI is a design, engineering, and construction firm that specializes in steam and power generation facilities.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchPeachtree Corners, GA, United StatesHQ recorded Nov 5, 202651-200123 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 · Nov 5, 2026 · View company records in RevenueBase
22Exact matchWheat Ridge, CO, United StatesHQ recorded Nov 5, 202651-200112 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 · Nov 5, 2026 · View company records in RevenueBase
23Exact matchPikeville, KY, United StatesHQ recorded Nov 5, 202651-200108 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchGretna, NV, United StatesHQ recorded Nov 5, 202651-200105 contacts →

Exact match

“Since 1981, BCP Engineers and Consultants (BCP) has provided engineering and project management services to the U.S.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 24 of 362 nuclear engineering consultants based in the United States

See the full list, filter by size, metro and specialty, and access 11,878 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Nuclear engineering consultants based in the United States at a glance

As of Nov 5, 2026
20.3%Verified-email coverage
161.8Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · Houston
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
171
11-50
97
51-200
55
201-500
14
501-1,000
8
1,001-5,000
8
5,001-10,000
4
10001+
3

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 362 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 engineering consultants” 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 11,878 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 November 5, 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 engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nuclear engineering consultants are there based in the United States?

RevenueBase identified 362 company matches for nuclear engineering consultants associated with the United States as of November 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?

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

Which city has the most nuclear engineering consultants?

Houston leads with 10 company records, followed by Oak Ridge (9) and Washington (7).

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 11,878 professional contacts with verified work emails tracked across these 362 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 November 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 362 nuclear engineering consultants based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.