Pale Blue
- Company typePrivate
- Founded2020
- HeadquartersKashiwa, Japan
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
Pale Blue firmographics
Firmographics- Name
- Pale Blue
- Legal name
- 株式会社Pale Blue
- Website
- https://pale-blue.co.jp
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Ownership category
- akta.pro rank
Pale Blue industry classification
Industry- Product category
- Satellite Propulsion Systems
- NAICS
- Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing (336415), Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing (336419)
- SIC
- Guided Missiles & Space Vehicles & Parts (3760)
- akta.pro primary industry
- Spacecraft Propulsion (In-Space) & Thrusters (IMABACAE)
Keywords
Where Pale Blue is headquartered
LocationHeadquarters
- HQ city
- Kashiwa
- HQ country
- Japan
- HQ region
- Asia
Offices4 records
Markets served
Pale Blue business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Operations, Personnel, Infrastructure, Marketing or Sales, Supply Chain
Revenue model
- Water Propulsion Systems Sales: Direct sales of water-based propulsion systems including ion thrusters, Hall-effect thrusters, and resistojet systems to satellite integrators and operators. Products delivered pre-filled with propellant as fully integrated plug-and-play systems.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
Pale Blue product offering
Product offeringCore offering
Pale Blue develops, manufactures, and sells fully integrated water-based electric propulsion systems for small satellites, including water ion thrusters, water Hall-effect thrusters, water resistojet thrusters, and hybrid thrusters. Products are delivered as plug-and-play units pre-filled with water propellant and use RS-422 interfaces, sold directly to satellite integrators, operators, research institutions, and government space agencies worldwide.
Product overview
Pale Blue offers a comprehensive portfolio of water-based electric propulsion systems for small satellites ranging from 3U CubeSats to 700kg class satellites. The product lineup includes two main technology families: (1) Water Resistojet thrusters (PBR series: PBR-10, PBR-20, PBR-30, PBR-50) providing high thrust at lower specific impulse for rapid maneuvers; and (2) Water Ion thrusters including the flagship PBI grid-type ion thruster and Hall-effect thrusters (PBH-100, Water Hall-effect Thruster) delivering higher specific impulse for fuel-efficient station-keeping and orbit transfers. The KIR hybrid thruster uniquely combines resistojet and ion technologies in one integrated unit. All products are fully integrated systems with pre-loaded propellant, RS-422 communication interfaces, and industrial production capability for batch delivery.
Differentiator
Problem solved
Functional benefit
Products and services
- PBI (Water Ion Thruster) Grid-type ion thruster using water as propellant in a compact 1U+ form factor for NanoSats and MicroSats. Achieves >7,000 Ns total impulse with <60W power consumption and >0.35 mN thrust. Fully integrated plug-and-play system including thruster head, fluidics, propellant tank, and PPU.
- PBR-10 (Water Resistojet) Ultra-compact 0.5U water vapor resistojet thruster optimized for CubeSats. Generates 1.0 mN thrust at 6W power with >55 Ns total impulse. Pre-loaded with propellant, RS-422 communication interface.
- PBR-20 (Water Resistojet) Compact 1U water vapor resistojet thruster for 6U-8U CubeSats. Provides 1.0 mN thrust at 20W with >220 Ns total impulse. Fully integrated with clusterable design for multiple satellite missions.
- PBR-30 (Water Resistojet) Compact <2U integrated resistojet thruster with throttling capability. Generates 3-12 mN thrust with 10-35W power input. Space-verified technology with >400 Ns total impulse and <2.1 kg wet mass.
- PBR-50 (Water Resistojet) MicroSat-class water vapor resistojet system in φ250x300mm form factor. Delivers 10 mN thrust at 50W with 4,400 Ns total impulse. Optimized for 100-200kg class satellites, pre-filled propellant delivery.
- PBH-100 (Compact Hall Thruster) Compact Hall-effect thruster system for MicroSats and SmallSats (50-200kg class). Operates at 110-180W with 5-8 mN thrust and >50k Ns total impulse. Features Japanese microwave cathode technology enabling instant-start capability and flexible tailored configuration.
- Water Hall-effect Thruster (Large) High-power Hall-effect thruster system for satellites up to 700kg. Delivers 10 mN thrust at 600W with 180,000 Ns total impulse. 350x350x600mm envelope, provides ideal balance of thrust and specific impulse with clusterable architecture.
- KIR (Water Hybrid Thruster) Integrated water hybrid thruster combining water vapor resistojet and gridded ion thruster in one unit. Offers both high thrust (resistojet) and high specific impulse (ion) modes, switchable by command. World's first space demonstration on JAXA RAISE-3.
Quantifiable outcome
- Satellite operational life extended by 2.5 years using water propulsion on Sony STAR SPHERE mission
- +3 more outcomes
Companies that use Pale Blue
Customer profileNamed customers5 records
Segments3 records
Ideal customer profiles3 records
Pale Blue technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Pale Blue partnerships and signals
Strategic signalScale indicators9 records
Recent moves3 records
Expansion highlights6 records
Pale Blue competitors and assessment
Company assessmentDirect peers
- Busek: US-based electric propulsion specialist offering ion thrusters, Hall thrusters, and electrospray systems for small spacecraft. Direct competitor with broader legacy propulsion portfolio spanning multiple technologies, similar to Pale Blue's multi-product smallsat approach.
- SITAEL: Italian smallsat propulsion company offering Hall-effect, iodine, and resistojet thrusters for small satellites. Direct competitor particularly relevant given Pale Blue's D-Orbit partnership in Italy, and active in the same institutional and constellation customer segments.
- Accion Systems: US-based developer of electrospray propulsion systems for small satellites. Direct competitor targeting CubeSat and smallsat propulsion customers with non-toxic propellant solutions, competing on form factor, integration ease, and mission flexibility similar to Pale Blue's positioning.
- ThrustMe: French space propulsion company offering iodine-based electric propulsion systems (iT thrusters, NPT30) for smallsats. Direct competitor addressing similar mission profiles — constellation mobility, station-keeping, and deorbiting — with a differentiated propellant story parallel to Pale Blue's water approach.
- Morpheus Space: Germany-based developer of smallsat electric propulsion systems (nano- and microthrusters) using field-emission electric propulsion (FEEP). Direct competitor targeting the same CubeSat/MicroSat customer base as Pale Blue's PBR series with alternative non-toxic propellant technologies.
- Enpulsion: Austria-based developer of electric propulsion systems (IFM Hall-effect thrusters) for small satellites. Direct competitor to Pale Blue across the smallsat propulsion category, particularly in the MicroSat/SmallSat class where Enpulsion has multiple years of commercial flight heritage.
- Phase Four: US-based plasma thruster company (RF thrusters) serving the smallsat propulsion market. Direct competitor offering Hall-effect-adjacent electric propulsion for satellite constellation operators, competing on cost, performance, and integration simplicity.
Broad incumbents
- Astra (Apollo Fusion): US-based launch and propulsion company that acquired Apollo Fusion to develop Hall-effect thrusters for small satellites. Broader space company that competes indirectly via its propulsion product line targeting constellation operators across smallsat and larger platform classes.
- Aerojet Rocketdyne (now part of L3Harris): Large US propulsion incumbent with extensive electric and chemical propulsion portfolio including ion and Hall thrusters for government and commercial satellites. Competes as an established alternative for higher-value SmallSat and larger spacecraft propulsion contracts where Pale Blue's Hall thruster will eventually compete.
- Safran (Snecma / Safran Aircraft Engines): European aerospace propulsion major with satellite electric propulsion offerings through Safran Aircraft Engines and subsidiaries. Broad incumbent providing competing Hall thruster and chemical propulsion systems across commercial and institutional satellite customers.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Pale Blue social profiles
Digital presencePale Blue financial estimates
Financial estimateRevenue estimate
Valuation estimate
Pale Blue leadership team
Management profileNumber of profiles
Profiles11 records
Pale Blue funding detail
Funding detailFunding overview
Funding rounds7 records
Investors24 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Pale Blue M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Pale Blue
What does Pale Blue do?
Pale Blue develops, manufactures, and sells fully integrated water-based electric propulsion systems for small satellites, including water ion thrusters, water Hall-effect thrusters, water resistojet thrusters, and hybrid thrusters. Products are delivered as plug-and-play units pre-filled with water propellant and use RS-422 interfaces, sold directly to satellite integrators, operators, research institutions, and government space agencies worldwide.
Is Pale Blue a public or private company?
Pale Blue is a private company. It is classified as venture growth investor backed and is currently operating.
When was Pale Blue founded?
Pale Blue was founded in 2020. It employs 11 to 50 people.
Where is Pale Blue based?
Pale Blue is headquartered in Kashiwa, Japan, in the Asia region.
How does Pale Blue make money?
One revenue line is on record: water Propulsion Systems Sales.
Who are Pale Blue's main competitors?
Direct peers on record are Busek, SITAEL, Accion Systems, ThrustMe, Morpheus Space, Enpulsion and Phase Four. Broad incumbents are Astra (Apollo Fusion), Aerojet Rocketdyne (now part of L3Harris) and Safran (Snecma / Safran Aircraft Engines).
Does Pale Blue have an API?
No public API is recorded for Pale Blue.
What industry is Pale Blue in?
Pale Blue's product category is Satellite Propulsion Systems. Its primary akta.pro industry code is IMABACAE, Spacecraft Propulsion (In-Space) & Thrusters. Its NAICS code is 336415 and its SIC code is 3760.