Busek Co.

Updated 25 Jul 2026
Manufacturer United States Listed
20 Products
41 Years Active
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About Busek Co.

Busek Co. Inc. designs, develops, and manufactures electric propulsion thrusters, power electronics, and material science components for space applications. The company specializes in Hall thrusters, electrospray thrusters, RF ion thrusters (iodine-fueled), and green monopropellant thrusters (ASCENT-fueled). They also provide electronics, space systems, research, and complete mission and system engineering support. Their customers include major aerospace primes, NASA, the US Air Force, and commercial satellite operators. Busek was founded in 1985 by Dr. Vlad Hruby. Their headquarters and manufacturing facilities are located in Natick, MA, USA, with over 33,000 square feet of space. Busek has a flight heritage dating back to 2006 with a 200W Hall thruster on TacSat-2. Other flight heritage includes hardware for AFRL TacSat-2, USAFA FalconSat-3, FalconSat-5, and NASA/ESA LISA Pathfinder. They licensed Hall thruster technology to Aerojet Corp. for the BPT-4000 Hall thruster used on Advanced EHF satellites. Upcoming missions include providing four BHT-6000 thrusters for NASA's Artemis mission. Busek is AS9100 and ISO 9001 certified, and their products are exclusively manufactured and assembled in the USA.

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Products

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Multi-axis precision electrospray propulsion system (BET-300P thrusters) for ultra-precise attitude/orbital control down to 1U platforms.

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Flight-proven

Busek's BGT-X5 is a 0.5N green monopropellant thruster system delivering 565 N-s of total impulse within a 1U CubeSat volume, using the stable ASCENT propellant as a hydrazine alternative.

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Busek's Green Monopropellant Thrusters feature a patented monolithic catalyst that is efficient yet extremely robust, with available thruster sizes ranging from 0.1N to 22N class.

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Flight-proven

The BHT-100 is a compact, magnetically shielded Hall thruster designed for small spacecraft, offering high efficiency and a predicted lifetime of 10,000 hours or more.

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Compact and versatile, the BHT-100 Hall Thruster is precisely engineered for leading-edge propulsion to enable a new class of spacecraft missions.

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The BHT-1500 is a 2kW-class Hall Effect thruster featuring an innovative center-mounted cathode, designed for efficient and high-performance propulsion using xenon, krypton, or iodine propellants.

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Flight-proven

The BHT-200 is a high-performance, mature Hall effect thruster with flight heritage, designed for spacecraft propulsion and capable of operating with various propellants including iodine.

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The BHT-20K is Busek's highest power Hall thruster to date, designed for high-power space missions and capable of delivering 1 Newton of thrust.

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Flight-proven

The BHT-350 is a Hall Effect thruster designed for high-volume production and scalability in new space applications, offering an economical propulsion solution for constellations and small satellites.

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Flight-proven

The BHT-600 is a high-performance, long-life Hall Effect thruster designed for small satellites, offering primary propulsion and attitude control with options for direct mount or 1-axis/2-axis gimballing.

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The BHT-6000 is a high-performance Hall effect thruster optimized for mid-to-high power applications, capable of operating in both high thrust and high impulse modes.

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Flight-proven

Compact iodine-fueled gridded RF ion thruster; flown on NASA SLS deep-space CubeSat missions.

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Enabling unique missions in space-based science, from detecting gravity waves to stabilizing large observatories, these thrusters offer precise thrust control and efficient operation.

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The FalconSat-3 features the first 3-electrode micro-pulsed plasma thruster (μPPT) in space, launched in 2007.

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Busek develops leading edge electric propulsion thrusters to enable entirely new classes of spacecraft missions, balancing extraordinarily high specific impulse with excellent thrust-to-power for highly efficient electric propulsion.

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Busek develops leading edge electric propulsion thrusters to enable entirely new classes of spacecraft missions, balancing extraordinarily high specific impulse with excellent thrust-to-power for highly efficient electric propulsion.

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Busek delivered eight electrospray thruster clusters for the NASA/ESA LISA Pathfinder mission, ST7, a technology demonstration mission to prepare for the Laser Interferometry Space Antenna (LISA).

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Extremely compact and versatile systems for spacecraft classes from small satellites to nanosatellites, featuring high performance and unprecedented efficiency at its size.

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Sized perfectly for small satellites and CubeSats, these scalable solutions offer high performance for various applications.

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The TacSat-2 satellite, launched in 2006, featured Busek's 200W Hall Thruster, marking the first US-designed and US-built Hall thruster in space for primary propulsion.

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