What Cosmic Shielding Corporation does

Cosmic Shielding Corporation is an Atlanta-based, privately held space technology company founded in 2021 that develops and sells Plasteel®, a proprietary nanocomposite radiation-shielding material designed to protect commercial off-the-shelf (COTS) electronics—GPUs, sensors, FPGAs, SoMs, and SoCs—in orbital and deep-space radiation environments. The company's core technical proposition is that its shielding enables space operators to bypass expensive, low-availability radiation-hardened components in favor of modern, high-performance COTS hardware, with internal and third-party-validated claims of up to 10x reductions in single-event effects, 7x extensions in mission life, and 15x cost savings versus traditional rad-hard systems. Validation has been performed at leading particle-accelerator and radiation-testing facilities (HIMAC, TRIUMF, CERN) and on multiple SpaceX rideshare missions, including Quantum Space Scout-1, an Aethero-paired Nvidia GPU payload, and three systems flown on Transporter-13 in March 2025.

The company sells Plasteel® through a direct, consultative enterprise sales motion with a quote-based pricing model, targeting space operators, satellite manufacturers, and government/defense customers. It supplements commercial sales with significant non-dilutive U.S. Department of War funding, including a $4M TACFI contract in 2025 (with an additional $2M Air Force/Space Force match), and has secured ISO 9001:2015, AS9100, NIST 800-171, and ITAR registrations to qualify for defense and aerospace prime contractor programs. Beyond material sales, the company is investing in a predictive Radiation Performance Modeling Tool that compresses electronics qualification timelines from years to hours, opening a software-adjacent revenue angle. Leadership comprises CEO Yanni Barghouty and founder/CTO Lembit Sihver, with a team of 11-50 employees and roughly $10.4M in disclosed cumulative funding across equity and government awards since inception.

Name

Cosmic Shielding Corporation

Legal name

Cosmic Shielding Corporation

Website

https://cosmicshielding.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

Cosmic Shielding Corporation develops Plasteel®, a proprietary nanocomposite radiation shielding material that protects commercial off-the-shelf electronics in space, selling directly to satellite manufacturers, space operators, and U.S. defense agencies.

Ownership category

akta.pro rank

Product category

Space Radiation Shielding Materials

NAICS

Guided Missile and Space Vehicle Manufacturing (336414)

SIC

Guided Missiles & Space Vehicles & Parts (3760)

akta.pro primary industry

Radiation Protection & Health Physics Services (ALARA programs, shielding design, RSO services) (EUAKAIAJ)

akta.pro secondary industries

Space Payloads & Instruments (Sensors, Comms, EO/IR) (IMABACAD), Military Power Supplies, RF/Microwave Components & Ruggedized Electronics (IMABAGAJ), Space-Based Defense Systems (SSA, Missile Warning, Protected SATCOM) (IMABAOAH)

Keywords

• Radiation shielding materials
• Space electronics protection
• COTS hardware shielding
• Satellite radiation protection
• Space-grade nanocomposites

Headquarters

HQ city

Atlanta

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Plasteel® Radiation Shielding Products: Sale of proprietary radiation shielding material and products to space operators, satellite manufacturers, and government agencies. Customers purchase Plasteel® to protect their COTS electronics (GPUs, sensors, FPGAs, SoMs, SoCs) for space deployment.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Cosmic Shielding Corporation manufactures and sells Plasteel®, a proprietary nanocomposite radiation shielding material that allows commercial off-the-shelf (COTS) electronics such as GPUs, sensors, FPGAs, SoMs, and SoCs to operate reliably in space radiation environments. The offering includes the shielding material, a Radiation Performance Modeling Tool that predicts electronic system performance under shielding, and integrated shielded system solutions delivered to satellite operators, spacecraft manufacturers, and government/defense space programs for missions ranging from LEO to GEO to deep space.

Product overview

Cosmic Shielding Corporation offers a single unified product, Plasteel®, a radiation shielding material that protects commercial off-the-shelf (COTS) electronics including GPUs, sensors, and advanced systems from harsh space radiation environments. The product enables AI-capable systems to operate reliably in orbit and has been validated through testing at world-class facilities and successful space missions.

Differentiator

Problem solved

Functional benefit

Brands

• Plasteel®: A radiation shielding product that protects COTS GPUs, sensors, and advanced electronics from harsh radiation environments in space, enabling AI and data systems to operate reliably in orbit.

Products and services

• Plasteel® Radiation Shielding Material

Quantifiable outcome

• 10x reduction in radiation-induced single event effects (measured at HIMAC with 180 MeV/n Xe ions on Nvidia Jetson Orin NX 8GB)
• +3 more outcomes

Named customers12 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered flagship, minor and core.

• AetheroflagshipStrategic or Co-development Partner · 31 March 2026Partnership to develop capabilities for novel AI applications across Earth observation and in-space autonomy. Aethero launched the fastest Nvidia GPU system in space on SpaceX Transporter-11 with Plasteel shielding. Also partnered on Aethero mission announced March 31, 2026.
• Quantum SpaceminorStrategic or Co-development PartnerPartnership to deliver Plasteel-shielded system into orbit on the Quantum Space Scout-1 craft during SpaceX Transporter-10 mission (March 2024).
• U.S. Department of War / AFWERXcoreStrategic or Co-development PartnerAwarded $4 million TACFI contract managed through AFWERX to accelerate development of radiation protection systems for space electronics, with additional $2 million match from U.S. Air Force and Space Force.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Microchip Technology: Microchip is the dominant supplier of radiation-hardened and radiation-tolerant microcontrollers, FPGAs (via Microsemi), and analog ICs for space. It competes with Cosmic Shielding's COTS-enabling thesis by selling qualified rad-hard silicon, and is the most established incumbent Cosmic Shielding positions against with its 15x cost-savings claim.
• BAE Systems Electronic Systems: BAE Systems manufactures radiation-hardened electronics and space-grade components for U.S. defense and civil space programs. It is the kind of incumbent Cosmic Shielding would need to displace on cost and performance, and the typical prime-contractor qualification gate for new shielding technologies.
• Honeywell Aerospace: Honeywell supplies radiation-hardened space electronics, guidance systems, and onboard computing for commercial, civil, and military spacecraft. It is a deeply embedded incumbent whose rad-hard product lines define the cost baseline Cosmic Shielding's 15x claim benchmarks against.
• Teledyne Technologies (Teledyne e2v): Teledyne, including its e2v semiconductors unit, supplies space-grade and radiation-tolerant image sensors, data converters, and ICs widely used on orbit. It overlaps with Cosmic Shielding at the COTS-electronics-protection intersection and competes for similar Earth observation and scientific mission sockets.
• Northrop Grumman: Northrop Grumman is a space prime with deep expertise in radiation-hardened subsystems, satellite buses, and strategic space electronics. It is a buyer of shielding technologies and a likely competitor for the same DoD and intelligence-community radiation-protection program dollars Cosmic Shielding is pursuing via AFWERX.
• STMicroelectronics: STMicroelectronics manufactures space-grade and radiation-tolerant ICs, including rad-hard power, analog, and microcontroller products. As an incumbent silicon supplier, it sets the cost and qualification baseline Cosmic Shielding competes against when enabling COTS alternatives.
• AMD (Xilinx Space-Grade FPGAs): AMD's Xilinx division supplies space-grade FPGAs (e.g., Kintex UltraScale, Virtex UltraScale+) widely used in orbit. Radiation tolerance is typically delivered via silicon-level design and qualification rather than external shielding, making Xilinx a relevant comparator on performance-per-watt for orbital compute.

Direct peers

• Vorago Technologies: Vorago Technologies produces radiation-hardened ARM-based microcontrollers and embedded processors using proprietary HARDSIL technology for space and defense. Like Cosmic Shielding, it pursues cost-effective alternatives to traditional rad-hard silicon and serves smallsat and defense customers directly.
• Mercury Systems: Mercury Systems builds ruggedized, mission-critical processing subsystems for aerospace and defense, including radiation-tolerant edge compute for space platforms. It overlaps with Cosmic Shielding in enabling advanced compute in contested space environments and competes for the same mission-processing dollars.

Emerging players

• HRL Laboratories: HRL Laboratories (a Boeing-GM venture) develops advanced radiation-hardened ICs and novel semiconductor materials for space and defense. It represents the kind of deep-tech incumbent developing silicon-level radiation mitigation that could narrow the value proposition of external shielding materials like Plasteel.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/posts/dwald_proud-to-announce-that-phobos-the-second-ugcPost-7444774944753876992-COgH/?utm_source=share&utm_medium=member_desktop&rcm=ACoAAAurho8BAVDgarR3eyxnTPtq0-VnUvIL47Y

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds8 records

Investors12 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cosmic Shielding Corporation