What Princeton Satellite Systems does

Princeton Satellite Systems (PSS) is a privately-held aerospace and energy engineering firm founded in 1992 by Michael Paluszek and headquartered in Plainsboro, New Jersey. The company operates with a small core team of approximately five identified personnel (President/Founder, Chief Scientist, Staff Scientist, Administration, Marketing) and generates revenue across four primary streams: perpetual MATLAB software licenses centered on the Spacecraft Design Toolbox (SDT) and its add-on modules; government research contracts with DoD (Navy, Army, Air Force), NASA, DOE, NSF, ARPA-E, and DARPA; commercial consulting in GN&C, flight software, and simulation; and hardware sales including RF amplifier boards, superconducting magnets, CubeSat frames, and textbooks.

The company's technical portfolio spans three thrust areas. First, the Spacecraft Design Toolbox (formerly Spacecraft Control Toolbox) embodies more than 50 years of accumulated spacecraft design expertise and provides end-to-end MATLAB-based simulation, attitude/orbit control, estimation, link, power, and thermal analysis, with add-on modules for formation flying, launch vehicles, optical navigation, solar sails, spin-axis attitude determination, interplanetary missions, and wind turbine control. Second, PSS is developing Starfire (formerly Direct Fusion Drive), a 1–10 MW class fusion-powered rocket and power plant concept based on the Princeton Field-Reversed Configuration (PFRC) developed in collaboration with Princeton Plasma Physics Laboratory, employing a unique odd-parity RF heating method. Third, the company pursues complementary R&D in hypersonic two-stage-to-orbit vehicles, RF power electronics for plasma applications, a deployable parasol spacecraft control system (US Patent 2026/0103299 A1), and emerging work in biomechanics and orthopedic implants.

PSS monetizes software through perpetual licenses with source code and annual maintenance, training at $2,500 per five-day course, consulting at roughly $200/hour, hardware at fixed unit prices ($499 to $99,500), and non-dilutive government grants (NIAC 2016; ARPA-E OPEN 2018, 2022; ARPA-E GAMOW 2023; DOE SBIR ~$193K in 2024). Its customer base comprises U.S. government agencies, aerospace primes (Boeing, Orbital Sciences, Swedish Space Corporation), international satellite operators (Indostar/BSat, Koreasat, AsiaSat, Echostar), and research universities (MIT, Cornell). Distribution occurs via direct e-commerce (shop.psatellite.com), quote-based enterprise sales, on-site or in-house training, and international resellers. The company has secured DARPA ERIS Marketplace "Awardable" status and was featured in AIAA's Aerospace America 2025 Year in Review.

Name

Princeton Satellite Systems

Legal name

Princeton Satellite Systems

Website

https://psatellite.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

1–10 employees

Short description

Princeton Satellite Systems is a privately-held, Plainsboro, NJ-based aerospace and energy engineering firm developing MATLAB-based spacecraft design software (Spacecraft Design Toolbox), Starfire fusion propulsion technology, RF power electronics, and hypersonic vehicle concepts for government agencies, aerospace primes, universities, and commercial customers.

Ownership category

akta.pro rank

Product category

Aerospace Engineering Software

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Guided Missile and Space Vehicle Manufacturing (336414), Computer Systems Design and Related Services (5415)

SIC

Guided Missiles & Space Vehicles & Parts (3760), Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Spacecraft Avionics, Flight Computers & Software (IMABACAI)

akta.pro secondary industries

Spacecraft & Satellites (Civil/Commercial) (IMABACAB), Spacecraft Propulsion (In-Space) & Thrusters (IMABACAE), Spacecraft Integration, Assembly & Test (IAT) (IMABACAK)

Keywords

• Spacecraft design software
• MATLAB simulation toolboxes
• Fusion propulsion technology
• Aerospace engineering consulting
• RF power electronics

Headquarters

HQ city

Plainsboro

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Commercial Software Licensing: Perpetual software licenses with source code for Spacecraft Design Toolbox and add-on modules. Annual maintenance fees for updates and technical support. Includes 90 days free telephone support and one year free email support.
2. Government Contracts: Contracts with DoD (Navy, Army, Air Force), NASA, DOE, NSF, and ARPA-E for research and development in fusion propulsion, power electronics, and spacecraft systems.
3. Commercial Consulting: Cutting edge solutions to commercial customers including GN&C design, end-to-end simulations, flight software delivery in Algorithm Document Descriptions format, C code, and Simulink blocks.
4. Hardware Products: Sale of RF amplifier boards ($499), superconducting magnets ($99,500), CubeSat frames, 3D printed satellites, and textbooks.
5. Training Courses: Five-day instructor-led training courses for Spacecraft Control Toolbox. Courses given at headquarters in Plainsboro, NJ or customer location with minimum 5 students. Customization available for specific missions.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

Princeton Satellite Systems develops and licenses the MATLAB-based Spacecraft Design Toolbox (SDT), a modular software suite for designing, simulating, and analyzing spacecraft attitude/orbit control, estimation, power, thermal, and mission subsystems, accompanied by C++ Simulation Framework libraries and a VisualCommander visualization environment. The company also conducts R&D and delivers engineering services in fusion propulsion (Starfire/Direct Fusion Drive), RF power electronics for plasma and fusion, and hypersonic vehicle design, with additional physical products including Class-E RF amplifier boards, low-temperature superconducting magnets, and CubeSat components.

Product overview

Princeton Satellite Systems offers a modular software platform architecture centered on MATLAB-based toolboxes, with the Spacecraft Design Toolbox (SDT, formerly Spacecraft Control Toolbox) as the core product. SDT provides comprehensive spacecraft design, analysis, and simulation capabilities covering attitude/orbit control, subsystems (link, power, thermal), and mission analysis. The product portfolio includes add-on modules for specific capabilities: Interplanetary Module Pack for solar system travel, Solar Sail Module for solar sail modeling, Formation Flying Module for multi-satellite coordination, Launch Vehicle Module for rocket analysis, Optical Navigation Module for deep space navigation, and Spin Axis Attitude Determination Module. Supporting products include the Core Control Toolbox for general control systems, Advanced Nuclear Toolbox for fusion systems, Simulation Framework (C++ libraries), and VisualCommander (Mac OS X/iOS visualization). Hardware products include 0.5 T Low-temperature Superconducting Magnets ($99,500), Class-E RF Amplifier Boards ($499), CubeSat frames and components, along with textbooks, training courses, and consulting services. Research areas include fusion propulsion (Starfire), power electronics, hypersonics, and biomechanics.

Differentiator

Problem solved

Functional benefit

Products and services

• Spacecraft Design Toolbox (SDT) MATLAB-based modular software suite for designing, analyzing, and simulating spacecraft across attitude/orbit control, estimation, link, power, thermal, and mission subsystems. Empowers aerospace primes, NASA/DoD, and universities to develop GN&C algorithms and design geosynchronous satellites in six days.
• Simulation Framework Cross-platform C++ libraries providing matrix and quaternion operations, simulation and control frameworks, and spacecraft packages that form the foundation for mission planning and simulation software.
• VisualCommander Mac OS X and iOS application for spacecraft and aircraft simulation, visualization, and control, integrated with the Simulation Framework.
• Core Control Toolbox Core MATLAB toolbox providing foundational control system design and analysis tools, with add-on modules for imaging, target tracking, and wind turbines.
• SDT Interplanetary Module Pack Add-on module to the Spacecraft Design Toolbox for interplanetary mission design and analysis, enabling spacecraft to travel anywhere in the solar system. Perpetual license priced at $2,995.
• SDT Solar Sail Module Add-on module for the Spacecraft Design Toolbox enabling modeling of solar sails of any shape with high-fidelity disturbance modeling and trajectory/control analysis.
• SDT Formation Flying Module Add-on module for the Spacecraft Design Toolbox enabling design and analysis of satellite formation flying systems, including algorithm development validated by the PRISMA mission.
• Launch Vehicle Module Add-on module for the Spacecraft Design Toolbox covering launch vehicle design, analysis, and simulation including third-stage CAD modeling and attitude control system design. Perpetual license priced at $4,995.
• Spin Axis Attitude Determination Module Add-on module for the Spacecraft Control Toolbox providing an integrated set of tools for spin-axis attitude determination using horizon sensor and sun sensor measurements.
• SDT Optical Navigation Module Add-on module for the Spacecraft Design Toolbox enabling navigation using optical sensors for lunar and deep space missions, with heritage from the NASA Optical Navigation System.
• Wind Turbine Module Add-on module to the Core Control Toolbox for MATLAB providing tools to design and test control systems for wind turbines, derived from NSF SBIR research on vertical-axis wind turbines. Perpetual license priced at $395.
• Advanced Nuclear Toolbox MATLAB toolbox for nuclear fusion and plasma system modeling and analysis.
• GeoMicroSat (GMS) Geosynchronous micro-satellite reference design intended to fly in formation with three other satellites for internet service and synthetic aperture radiometry.
• Remaining Useful Life (RUL) Module Predictive modeling tool for estimating remaining useful life of components susceptible to failure during high-power experimentation, such as power MOSFETs. Perpetual license priced at $10,000.
• 0.5 T/30 cm Low-temperature Superconducting Magnet Custom-built 0.5 T persistent-mode low-temperature superconducting magnet with 30 cm warm bore, cryogen-free operation via cryocooler, used in nuclear fusion, medical imaging, and particle accelerator applications. Priced at $99,500 with approximately 3-week lead time.
• 27.12 MHz Class-E RF Amplifier Board (HARP) Class-E RF amplifier board for generating 27.12 MHz signals for plasma applications, combining high-efficiency RF amplifiers in a network that can be steered via voltage and phase to handle varying plasma impedance. Priced at $499 with 4-6 week lead time.
• CubeSat 3U Frame Custom-machined aluminum 3U CubeSat frame (10 x 10 x 30 cm) for satellite integrators. Priced at $199 with 4-6 week delivery.
• 3D Printed 1U CubeSat 3D-printed 1U CubeSat reference design/component. Priced at $199.
• Spacecraft Attitude and Orbit Control Textbook (4th Edition) Comprehensive textbook on spacecraft attitude and orbit control, available as a single-user license ($125) or library license ($625).
• Textbook Companion Software Companion MATLAB software for the Spacecraft Attitude and Orbit Control textbook, providing simulated examples and exercises.
• Consulting Services Professional aerospace engineering consulting covering GN&C design, end-to-end simulations, flight software delivery in Algorithm Document Descriptions format, C code, and Simulink blocks; rate of $200/hour.
• SDT Toolbox Training Class Five-day instructor-led training course covering attitude control, orbit, and estimation functionality. Delivered at headquarters in Plainsboro, NJ or at customer site with minimum five students. Priced at $2,500.
• Starfire (Direct Fusion Drive) Compact fusion-powered rocket engine concept based on the Princeton Field-Reversed Configuration (PFRC) reactor with unique odd-parity RF heating, producing 1-10 MW of power and thrust for space missions and portable terrestrial applications.
• Power Electronics for Plasma Applications RF and pulsed power electronics for plasma applications ranging from nuclear fusion to plasma processing and propulsion, including the 27.12 MHz HARP amplifier board developed under DOE SBIR.
• Hypersonic Aircraft and Launch Vehicles Two-stage-to-orbit hypersonic vehicle designs including the Space Rapid Transit two-stage vehicle with hydrogen-fueled ramjet first stage and the Hypersonic Intercontinental Transport (HIT) waverider design targeting 15,000 km in 2.5 hours.

Quantifiable outcome

• Design all of the subsystems for a geosynchronous satellite in six days
• +3 more outcomes

Named customers13 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature6 records

Partnerships

Eight partnerships are on record, tiered core, major and minor.

• Swedish Space CorporationcoreStrategic or Co-development Partner · 1 January 2010Cooperative Research and Development Contract for Prisma mission. PSS developed rendezvous, formation flying and close maneuver algorithms and implemented them in flight software. Developed collision avoidance system and safe guidance mode for the Prisma two-satellite formation flying testbed. Safe guidance mode was used as nominal mode between experiments for entire mission.
• Princeton Plasma Physics Lab (PPPL)coreStrategic or Co-development PartnerCollaboration on Princeton Field-Reversed Configuration (PFRC) reactor technology. PFRC-2 experimental machine is in operation at PPPL. The unique 'odd-parity' RF heating method was developed by Dr. Sam Cohen of PPPL. Subcontract to PPPL for operating the PFRC machine and collaborating on experiment design and analysis.
• MIT (Prof. Jonathan How)coreStrategic or Co-development PartnerCollaboration on Agent Based Software for the Autonomous Control of Formation Flying Spacecraft. Research extended TeamAgent software for distributed estimation of relative spacecraft navigation with carrier-phase differential GPS, distributed fleet planning, coordination, and control, and fleet failure detection and recovery.
• Cornell University (Prof. Mark Campbell)coreStrategic or Co-development PartnerCollaboration on Agent Based Software for the Autonomous Control of Formation Flying Spacecraft. Joint research with MIT and Cornell on formation flying spacecraft control systems.
• NASAmajorTechnology or IntegrationNASA STTR for developing fusion technology. NASA Innovative Advanced Concepts (NIAC) support for Starfire fusion propulsion context mission (Pluto orbiter and lander). NASA SBIR grants for superconducting magnets and power electronics. NASA Glenn Research Center support for power electronics development.
• ARPA-EmajorTechnology or IntegrationARPA-E OPEN 2018 program to design compact fusion reactor suitable for portable applications. ARPA-E GAMOW program to develop high-efficiency, high reliability, and high power density electronics for fusion energy. Both programs involve collaboration with DOE and other fusion companies.
• Department of Energy (DOE)majorTechnology or IntegrationDOE SBIR Phase I project 'High-efficiency RF Amplifiers with Plasma Accommodation for Fusion Plasma Heating'. DOE Office of Fusion Energy Sciences support for PFRC-2 experiment. Multiple DOE grants for fusion and power electronics research.
• XCIMERminorOthersXCIMER hosted dinner and facility tour at ARPA-E Annual Meeting. Company is a laser fusion company. Informal relationship through industry events.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• CesiumAstro (formerly AGI / Analytical Graphics): CesiumAstro acquired AGI, maker of Systems Tool Kit (STK), the dominant commercial spacecraft mission analysis and visualization platform. Directly comparable to PSS's Spacecraft Design Toolbox as competing MATLAB-adjacent mission design and GN&C software for aerospace primes and government.
• Wolfram Research: Wolfram Mathematica is the primary competing technical computing platform to MATLAB for spacecraft analysis, control system design, and orbital mechanics. Competes for the same aerospace engineer customer base and university research budgets as PSS.
• Kubos (Major Tompkins): Kubos provides flight software frameworks and mission operations tools for small satellites, directly competing with PSS's SDT for the CubeSat and smallsat GN&C software market. Comparable customer base of smallsat operators and aerospace primes.
• Blue Canyon Technologies: Blue Canyon Technologies provides complete small satellite buses and GN&C components including reaction wheels and attitude control systems. Comparable as a small-satellite-focused supplier serving similar aerospace prime and government customers with integrated GN&C offerings.
• ISISPACE: ISISPACE is a leading CubeSat and small satellite components and platforms supplier. Comparable as a small-satellite-focused supplier providing GN&C hardware, CubeSat frames, and related subsystems competing for similar university and commercial smallsat customers.

Emerging players

• TAE Technologies: TAE Technologies is a leading private fusion energy company pursuing field-reversed configuration technology with similar plasma physics lineage to PSS's PFRC-based Starfire. Comparable as a fusion R&D company pursuing compact reactor designs with potential dual-use space propulsion applications.
• Helion Energy: Helion is a leading fusion energy startup pursuing pulsed fusion with direct electricity conversion, partially overlapping with PSS's compact fusion propulsion thesis. Comparable as a privately-funded fusion development company with space-power-adjacent technology roadmaps.
• Commonwealth Fusion Systems: CFS is a well-funded fusion energy company pursuing tokamak-based SPARC reactor with MIT collaboration. Comparable to PSS's fusion work as a competing compact fusion developer targeting commercial energy and potentially space applications.

Broad incumbents

• Beyond Gravity (formerly RUAG Space): Beyond Gravity is a major space hardware supplier providing structures, mechanisms, and thermal control for spacecraft. Comparable as a broader spacecraft subsystems provider competing for similar prime contractor and government programs as PSS's deployable parasol and structural offerings.

Others

• MathWorks: MathWorks is the maker of MATLAB/Simulink, the platform on which PSS's Spacecraft Design Toolbox is built. While not a direct competitor, MathWorks represents both a critical dependency (platform risk) and an adjacent vendor relationship for the same aerospace engineering customer base.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/PSSToolboxVideos
• Facebookfacebook.com/psatellite
• LinkedInlinkedin.com/company/princeton-satellite-systems

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds2 records

Investors1 record

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 Princeton Satellite Systems