Company lists · Data refreshed September 2026

Top 16 Nuclear engineering firms based in Canada

Name: Nuclear engineering firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 29 companies tracked

RevenueBase identified 29 nuclear engineering firms headquartered in Canada as of September 2026 and tracks 25,795 professional contacts across them, including 15,077 with verified work emails. Toronto is the largest hub.

This list covers nuclear engineering firms headquartered in Canada, 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 17, 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 17, 2026 86% judged on-target in blind review

29Companies

25,795Contacts tracked

15,077Verified emails

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The 16 largest nuclear engineering firms based in Canada

Ranked by team size

Top 16 of 29 nuclear engineering firms based in Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to nuclear engineering firms: 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	Atkinsréalis	Strong evidence	Montreal, QC, CanadaHQ checked Sep 17, 2026	10001+	22,733 contacts →
	Strong evidence “We are a world-class engineering services and nuclear organization.” Source: RevenueBase Database · checked Sep 17, 2026
2	Canadian Nuclear Laboratories	Partial evidence	Chalk River, ON, CanadaHQ checked Sep 17, 2026	1,001-5,000	2,229 contacts →
	Partial evidence “Canada's premier nuclear science and technology organization.” Source: RevenueBase Database · checked Sep 17, 2026
3	Babcock & Wilcox Canada, LTD	Indirect evidence	Cambridge, ON, CanadaHQ checked Sep 17, 2026	51-200	231 contacts →
	Indirect evidence “Babcock & Wilcox Canada's Cambridge, Ontario facility was established in 1844 and has grown from a small foundry manufacturing industrial machinery to a world leader in the…” Source: RevenueBase Database · checked Sep 17, 2026
4	Laurentis Energy Partners	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	201-500	187 contacts →
	Partial evidence “Laurentis Energy Partners, a wholly-owned commercial subsidiary of Ontario Power Generation that was formerly known as Canadian Nuclear Partners, is an innovator and leader in the…” Source: RevenueBase Database · checked Sep 17, 2026
5	Niagara Energy Products	Partial evidence	Niagara Falls, ON, CanadaHQ checked Sep 17, 2026	51-200	49 contacts →
	Partial evidence “We are a specialist nuclear fabricator working with carbon steel, alloy steel and composite structures.” Source: RevenueBase Database · checked Sep 17, 2026
6	Fermi Solutions	Partial evidence	Port Elgin, ON, CanadaHQ checked Sep 17, 2026	11-50	43 contacts →
	Partial evidence “Fermi Solutions Inc delivers quality, cost-effective, and technology-driven engineering services that range from technical consultations to field delivery and implementation.” Source: RevenueBase Database · checked Sep 17, 2026
7	Nuclear At Mcmaster	Partial evidence	Hamilton, ON, CanadaHQ checked Sep 17, 2026	51-200	40 contacts →
	Partial evidence “Located in Hamilton, Ontario, McMaster University is among Canada’s most research-intensive universities, and the nation’s preeminent academic nuclear research institution.” Source: RevenueBase Database · checked Sep 17, 2026
8	Nuvia Canada INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “Nuvia Canada Nuvia Canada Inc.” Source: RevenueBase Database · checked Sep 17, 2026
9	Ccnuclear	Partial evidence	Beauharnois, QC, CanadaHQ checked Sep 17, 2026	51-200	29 contacts →
	Partial evidence “CCNuclear is recognized as a specialized service provider in the nuclear industry.” Source: RevenueBase Database · checked Sep 17, 2026
10	Stern Laboratories INC	Indirect evidence	Hamilton, ON, CanadaHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
11	Canadian Nuclear Partners	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “CNP is a wholly-owned subsidiary of Ontario Power Generation (OPG), one of the largest power companies in North America.” Source: RevenueBase Database · checked Sep 17, 2026
12	Anric Enterprises INC	Partial evidence	Etobicoke, ON, CanadaHQ checked Sep 17, 2026	11-50	7 contacts →
	Partial evidence “ANRIC is a Global Professional Engineering Firm, established in 1993 to perform technical and professional engineering services associated with the evaluation, development and…” Source: RevenueBase Database · checked Sep 17, 2026
13	Sciwise Solutions	Indirect evidence	Oakville, ON, CanadaHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “SciWise Solutions Inc.” Source: RevenueBase Database · checked Sep 17, 2026
14	Aureon Energy	Indirect evidence	Midland, ON, CanadaHQ checked Sep 17, 2026	11-50	4 contacts →
	Indirect evidence “Aureon Energy was established by the SAFIRE research team to transition years of experimental plasma and reactor research into engineered commercial energy and remediation systems.” Source: RevenueBase Database · checked Sep 17, 2026
15	Ritepro LTD	Partial evidence	Montreal, QC, CanadaHQ checked Sep 17, 2026	1-10	3 contacts →
	Partial evidence “Ritepro (Subsidiary of Bray International) is an American owned, Canadian corporation, dedicated to the Global Nuclear Power Industry.” Source: RevenueBase Database · checked Sep 17, 2026
16	Nuclear Energy Solutions INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	1-10	2 contacts →
	Partial evidence “At Nuclear Energy Solutions, we are driven by a passion for excellence, innovation, and the relentless pursuit of better solutions for the nuclear power industry.” Source: RevenueBase Database · checked Sep 17, 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: nuclear engineering firms. 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 nuclear engineering firms.
Partial evidence: Its own public description names part of nuclear engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name nuclear engineering firms. 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 16 of 29 nuclear engineering firms based in Canada

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Nuclear engineering firms based in Canada at a glance

As of Sep 17, 2026

58.4%Verified-email coverage

889.5Average contacts per company

11-50Median size (employees)

27.6%Largest-city concentration · Toronto

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 29 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 nuclear engineering firms, 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 Canada whose own description of what they do matches “nuclear engineering firms”. 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 nuclear engineering firms), 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 nuclear engineering firms, and records with no verified work email. Companies headquartered outside Canada 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, 15,077 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 17, 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 nuclear engineering firms, 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 nuclear engineering firms are there based in Canada?

RevenueBase identified 29 nuclear engineering firms headquartered in Canada 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?

Atkinsréalis, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most nuclear engineering firms?

Toronto leads with 8 headquartered companies, followed by Hamilton (2) and Montreal (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 15,077 verified decision-maker contacts tracked across these 29 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 17, 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.