When was Holtec International founded?

Holtec International was founded in 1986 and raised its 1st funding round 39 years after it was founded.

Where is Holtec International located?

Holtec International is headquartered in Jupiter, United States. It is registered at Turtle Creek, Pennsylvania.

How many employees does Holtec International have?

As of Mar 31, 2026, the latest employee count at Holtec International is 1306.

Is Holtec International a funded company?

Holtec International is a funded company, having raised an undisclosed amount across 3 funding rounds to date. The company's 1st funding round was a $***** Grant (prize money) round, raised on Jan 30, 2025.

When was the latest funding round of Holtec International?

Holtec International's latest funding was a $***** Grant (prize money) round on May 08, 2025, with participation from 1 investor.

Where does Holtec International rank among its competitors?

Holtec International ranks 17th amongst 57 active competitors, of which 21 are funded. It stands 11th in terms of total funding among its competitors. The most recent competitor to raise funding was Newcleo, which secured $85M in Feb, 2026.

Who are the top competitors of Holtec International?

Holtec International's top competitors include NuScale Power, Newcleo and TerraPower. Among them, Newcleo secured the most recent funding round in February, 2026.

Holtec International - 2026 Company Profile, Funding & Competitors

Holtec International is a funded company based in Jupiter (United States), founded in 1986. It operates as a Developer of small modular reactor. Holtec International has raised an undisclosed amount in funding. The company has 57 active competitors, including 21 funded and 4 that have exited. Its top competitors include companies like NuScale Power, Newcleo and TerraPower.

Company Details

Website: holtecinternational.com
Social
Registered Address: Turtle Creek, Pennsylvania

Key Metrics

Founded Year

1986

Location

Jupiter, United States

Stage

Funding Raised

Latest Funding Round

Grant (prize money), May 08, 2025, $*****

Ranked

17^th among 57 active competitors

Employee Count

1,306 as on Mar 31, 2026

Similar Companies

Newcleo & 41 more

View Holtec International's full profile

Holtec International is associated with 3 legal entities given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
HOLTEC MANUFACTURING DIVISION, INC. CIN: 251475839 , United States, Active	Dec 26, 999	-	169 (As on Dec 31, 2024)	-
GREEN BOILER TECHNOLOGIES, INC. CIN: 261423501 , United States, Active	Dec 31, 1999	-	-	-
HOLTEC SECURITY INTERNATIONAL, LLC CIN: 862515068 , United States, Active	Dec 31, 1999	-	302 (As on Dec 31, 2024)	-

Holtec International has raised funding over 3 rounds. Its first funding round was on Jan 30, 2025. Its latest funding round was a Grant (prize money) round on May 08, 2025 for $*****. 1 investor participated in its latest round.

Here is the list of recent funding rounds of Holtec International:

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
May 08, 2025	7689840	Grant (prize money)	7177669	9898335	4038573	3322428
Feb 26, 2025	7663714	Grant (prize money)	4238847	1864853	9830343	OSTI
Jan 30, 2025	6555159	Grant (prize money)	5099277	8665202	1631442	OSTI

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View details of Holtec International's funding rounds and investors

Holtec International's employee count trend

Holtec International has 1,306 employees as of Mar 26. Here is Holtec International's employee count trend over the years:

Employee count trend for Holtec International

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Top competitors of Holtec International include NuScale Power, Newcleo and TerraPower. Here is the list of Top 10 competitors of Holtec International, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	NuScale Power 2007, Portland (United States), Acquired	Developer of micro nuclear power plants	$198M	Doosan Enerbility, IBK Securities & 7 others	71/100
2nd	Newcleo 2021, Paris (France), Series B	Provider of advanced nuclear energy technologies, focused on designing, building, and operating small modular lead-cooled fast reactors	$843M	Exor, Club degli Investitori & 73 others	68/100
3rd	TerraPower 2006, Bellevue (United States), Series D	Designer of nuclear reactors	$1.46B	ArcelorMittal, SK & 7 others	66/100
4th	Oklo 2013, Santa Clara (United States), Public	Developer of small modular reactor	$120K	8090 Industries, DOE & 8 others	64/100
5th	Radiant Nuclear 2019, Los Angeles (United States), Series D	Developer of portable nuclear microreactors designed to replace diesel generators	$518M	Andreessen Horowitz, Union Square Ventures ... & 27 others	60/100
6th	X Energy 2010, Greenbelt (United States), Series D	Developer of small modular & high temperature gas cooled nuclear reactor	$1.53B	C5 Capital, Jane Street & 22 others	60/100
7th	Terrestrial Energy 2013, Charlotte (United States), Series D	Developer of small modular reactor	$118M	Sustainable Development Technology Canada, Varana Capital ... & 3 others	59/100
8th	Westinghouse Electric 1886, United States, Acquired	Developer of small modular reactor	-	Apollo Investment Corporation, ARPA-E & 6 others	58/100
9th	Kairos Power 2016, Alameda (United States), Funding Raised	Manufacturer of molten salt reactors	-	OSTI	53/100
10th	USNC 2011, Seattle (United States), Series B	Manufacturer of micro modular reactors	$47.4M	Hyundai Engineering & Construction, OSTI & 1 others	53/100
17th	Holtec International 1986, Jupiter (United States), Funding Raised	Developer of small modular reactor	-	-	44/100