Casimir Raises $12 Million In Series B Funding Round

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Casimir, Inc., a Houston-based quantum energy technology company, closed a $12 million oversubscribed seed round. The round exceeded its original $8 million target and was led by Scout Ventures, with participation from Lavrock Ventures, Cottonwood Technology, Capital Factory, American Deep Tech, and Tim Draper of Draper Associates.

The company, founded by Dr. Harold “Sonny” White, emerged from stealth with this funding. It aims to commercialize semiconductor chips that harvest energy from quantum vacuum fields via engineered Casimir cavities, producing continuous electrical power without batteries, cords, or external charging.

What is Casimir’s technology?

Casimir’s core innovation involves proprietary Casimir cavities, nanostructured semiconductor designs that exploit the Casimir effect. This quantum phenomenon arises from restrictions on vacuum fluctuations between closely spaced conductive surfaces (typically nanometers apart), creating a force and, in Casimir’s customized setup with midplane pillars, an exploitable electrostatic potential that generates usable DC electrical power.

First generation MicroSparc specifications (5mm x 5mm chip):

• Voltage: 1.5 V
• Current: 25 microamps
• Power output: In the microWatts to milliWatts range initially (comparable to a small ceramic rechargeable battery or tiny solar panel, but continuous and independent of light/environment)
• Mass: ~1.44 ounces (noted for the packaged form)
• Launch target: Prototyping advanced; commercial availability targeted for 2028, with initial 2026 milestones.

The chips are fabricated using nanofabrication techniques, building on DARPA supported work, university cleanroom prototyping, and peer reviewed foundations (e.g., White’s March 2026 paper “Emergent Quantization from a Dynamic Vacuum” in Physical Review Research). Power scales via multi layer architectures and die-stacking for up to 100x density gains, with hybrid systems initially pairing with existing batteries.

Applications roadmap:

• Near term (microWatts–milliWatts): Tire pressure sensors, smoke detectors, hearing aids, remote IoT sensors, targeting a ~$10B ultra low power electronics market where battery replacement is costly.
• Mid term (Watts): Consumer devices like smartphones (no ports), AR glasses, headphones, and EV support.
• Long term (kW–MW+): Homes, data centers, aircraft, and large infrastructure, with a broader TAM exceeding $67B. It positions the tech for AI driven always-on systems and energy independence.

The company emphasizes U.S. made production and dual use potential for national security and energy applications.

This is Casimir’s major seed round following earlier grants (e.g., ~$275K NSF) and smaller/accelerator support. The oversubscription signals strong investor conviction in the team and physics despite the technology’s speculative elements. Funds will optimize chip performance, advance manufacturing, and push toward 2028 commercialization.

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Key backers’ rationale:

• Scout Ventures (lead): Focuses on dual use tech for national security; highlights the 100+ years of quantum science now reaching hardware.
• Tim Draper and others: Align with deep tech, space, and transformative energy bets.
• Incubation at Limitless Space Institute (founded by investor/board member Dr. Kam Ghaffarian) ties it to advanced propulsion heritage.

Casimir addresses massive pain points in batteries: degradation, replacement costs/logistics (especially in IoT/remote settings), supply chain vulnerabilities, and environmental impact. In a world of exploding IoT/AI/edge computing demand, persistent micro power sources could be transformative. Scaling to higher outputs challenges traditional energy paradigms, potentially complementing or disrupting renewables, EVs, and grid storage.

The “American made” angle and government/university ties position it well for additional non dilutive funding or contracts.

The technology rests on novel engineering of the Casimir effect for net usable energy extraction, which pushes against conventional interpretations (Casimir forces are well measured, but practical power generation from vacuum fluctuations raises thermodynamic and scaling questions). Prototypes exist, with testing at partners like Texas A&M and MIT, but real world reliability, long term stability, manufacturing yields at scale, and cost competitiveness remain to be proven. Initial outputs suit niche low power uses; broader disruption depends on aggressive stacking/scaling. Timeline to 2028 leaves execution risk in a competitive deep tech field.

The $12M round validates momentum for a high ambition startup blending deep physics heritage with semiconductor practicality. Success in low power niches could fund scaling; failure to deliver consistent power would limit it to interesting science. The oversubscription and notable investors suggest the market is eager for breakthroughs in persistent, battery-free power. Casimir’s progress will be closely watched in quantum tech, energy, and hardware circles.

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