Casimir was founded by Sonny in 2023.

Who are Casimir's investors?

Casimir's investors include Deep Future, Draper Associates, IBX, Scout Ventures, Scout Ventures.

How much funding has Casimir raised?

Casimir has disclosed $36M raised across 3 of its 4 known rounds.

Where is Casimir headquartered?

Casimir is headquartered in Houston, US.

Casimir

Houston, US · Founded 2023 · Delaware corporation · 13 employees on LinkedIn · 5 known investors

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Casimir develops technology to extract usable energy from the quantum vacuum through Casimir cavities, aiming to create a novel power source for applications including advanced propulsion and energy generation. The company applies quantum physics research to produce practical energy systems.

Deep Tech Energy Hardware Quantum Computing Semiconductors

Founders & leadership

Casimir was founded in 2023 by Sonny.

SonnyFounder at Casimirspace

Harold WhiteNamed on SEC filing

Investors · 5

Deep Futurelisted by Deep FutureSeattlevia Pablos Holman · inferred

How we know: Deep Future's portfolio page · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Draper Associateslisted by Draper AssociatesSan Mateo · $500K – $5M

How we know: Draper Associates's portfolio page · Not right? Tell us

IBXlisted by IBXRockville

How we know: IBX's portfolio page · a partner's Signal profile · open dataset · 5k.vc investor directory · Not right? Tell us

Scout Ventureslisted by Scout VenturesAustin · $2M – $5M

How we know: Scout Ventures's portfolio page · a partner's Signal profile · funding news · Not right? Tell us

Scout Ventureslisted by Scout VenturesAustin · $2M – $5M

How we know: Scout Ventures's portfolio page · Not right? Tell us

Funding

SEC filings, press & company announcements

$36M disclosed across 3 of 4 rounds · 2024–2026

$12MSeries BMay 2026
Source ↗
$12MraisedMay 2026 · 4 sources
Source ↗
$12MSeedMay 2026 · 2 sources
Source ↗

▶$3MofferedJun 2024 · Other Energy

Rule 506(b)

Officers, directors & promoters on the filing

Harold WhiteExecutive Officer, Director

Offering amount: $3M
Minimum investment: $20K
Proceeds to insiders: $340K
Incorporated: Corporation, Delaware, 2023
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Related companies · 1

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Companies working in the same space as Casimir.

In the news

Casimir Raises $12M in Series B Fundingfinsmes.com · May 2026

Frequently asked questions

What does Casimir do?: Casimir develops technology to extract usable energy from the quantum vacuum through Casimir cavities, aiming to create a novel power source for applications including advanced propulsion and energy generation. The company applies quantum physics research to produce practical energy systems.
Who founded Casimir?: Casimir was founded by Sonny in 2023.
Who are Casimir's investors?: Casimir's investors include Deep Future, Draper Associates, IBX, Scout Ventures, Scout Ventures.
How much funding has Casimir raised?: Casimir has disclosed $36M raised across 3 of its 4 known rounds.
Where is Casimir headquartered?: Casimir is headquartered in Houston, US.