Space Tech Startups

Lonestar builds orbital data storage and AI infrastructure, placing "data embassies" on satellites and the Moon to preserve critical information under a customer's own sovereign legal authority. It targets nations, regulated sectors like finance and healthcare, and organizations protecting AI models and intellectual property.

2 investors

Lumi Space provides orbit determination as a service, offering high-accuracy satellite tracking data for space operators. Its data supports applications such as collision avoidance, constellation management, positioning/navigation/timing, active debris removal, and re-entry prediction.

2 investors

Luna Space develops StarLogic, an autonomous vision-based navigation and guidance system for spacecraft rendezvous, docking, and proximity operations. The system serves space applications including in-orbit servicing, active debris removal, and formation flying for distributed spacecraft.

2 investors

Marlinspike is a firm whose team includes advisors with senior U.S. national security and intelligence backgrounds. The page profiles an advisor who served as the CIA's Chief Operating Officer, but provides no direct description of the company's own products or services.

2 investors

Mithril develops electrostatically actuated, reconfigurable antennas for space-based radar that provide phased-array-style adaptability without motors, gimbals, or deployment mechanisms, at lower cost and mass than phased arrays or deployable reflectors. Its single reconfigurable aperture supports radar and communications across MEO, GEO, and cislunar orbits, targeting defense and commercial space sensing applications.

2 investors

Humans in Space develops health technologies for human operations in space environments, with applications to human health on Earth as well.

2 investors

Moeller Aerospace machines flight-critical turbine engine components and complex parts for major aerospace original equipment manufacturers and engine programs. The company specializes in precision machining of turbine airfoils and produces proprietary Click-Loc self-locking technology products.

2 investors

Neuraspace develops AI and machine learning models to predict satellite collisions and manage space debris for satellite operators and space agencies. The company aims to enable safe and automated space operations while maintaining a sustainable orbital environment.

2 investors

NewOrbit designs and builds satellites for very-low Earth orbit to advance global connectivity and earth observation. The company works to unlock the potential of Earth's lowest orbit while maintaining space sustainability.

2 investors

2 investors

OhmSpace develops high-thrust, high-specific-impulse resistojet electric propulsion systems that use safe, low-cost, multi-propellant fuels instead of hazardous chemicals, serving the small to large satellite and LEO constellation market. Its in-space propulsion products aim to speed satellites to operational orbit, reduce debris collision risk, and eventually enable in-space logistics using extra-terrestrial propellants.

2 investors

Optera develops bio-inspired, event-based vision sensors and neuromorphic semiconductor chips paired with on-source processing algorithms to provide situational awareness in space and defence environments. Its systems serve satellite operators, defence contractors, and research partners, targeting space domain awareness with low-power, low-bandwidth sensing.

2 investors

Orbes is a space technology company building systems and capabilities for orbital operations. The company draws on expertise in satellite mechanisms, propulsion, and guidance/control systems.

2 investors

Orbital Sidekick operates hyperspectral imaging satellites and provides data analysis for commercial operators in energy, mining, and agriculture, as well as environmental monitoring and national security applications. Its offerings help detect operational risks, support sustainability initiatives, and expand situational awareness through georectified hyperspectral intelligence.

2 investors

Orca Aerospace develops onboard AI systems that operate spacecraft directly from the vehicle, using large language models paired with deterministic tooling to make mission-level decisions while keeping execution controlled by safety-focused systems. It serves the satellite and spacecraft operations market.

2 investors

Orienspace develops specialized wireless data link communication systems for airborne platforms operating in complex environments. The company manufactures compact, low-latency transceivers that enable long-range command, telemetry, video, and image transmission for high-speed aircraft and unmanned aerial systems.

2 investors

Outlier is developing a reusable, uncrewed satellite platform that provides access to microgravity in orbit with safe return of payloads to Earth. It serves researchers, in-orbit manufacturers, and government programs across pharma, biotech, and advanced materials, with a platform planned to launch in 2028.

2 investors

PICOSATS develops miniaturized RF communication hardware, including non-regenerative transponders for CubeSats and small satellites operating in LEO and GEO orbits across the Ka and Ku bands. The company also works on satellite telecommunication systems and ground station technology.

2 investors

Pramatra Space develops satellite-based quantum key distribution (QKD) systems using integrated photonics chips to deliver encryption keys to enterprises. The company provides quantum cryptography solutions designed to protect digital assets against ransomware and future quantum computing attacks.

2 investors

Precursor gathers earth observation data from ground stations and satellite systems, processing it through machine learning to forecast earthquakes and space weather events days in advance. The company delivers geospatial intelligence for earthquake preparedness and space weather impact forecasting to governments, asset owners, emergency management agencies, and reinsurers.

2 investors

Primo Capital is an Italian independent alternative investments platform managing funds focused on climate, health, digital, and space technology sectors. It invests in early- and growth-stage startups, with 507M in committed capital across four investment strategies and a portfolio of 66 companies.

2 investors

Quadsat develops modular radio-frequency sensing and electronic warfare payloads (such as SpectraLoc) that integrate into UAV platforms for RF signal detection and emitter geolocation, along with spectrum operations software. It serves defense forces and drone OEMs, drawing on a background in drone-based satellite antenna calibration; the company is based in Denmark.

2 investors

QuantX develops quantum sensing instruments and precision timing systems for defense, space, and critical infrastructure applications where conventional technology fails. Products include ultra-stable frequency oscillators, compact optical atomic clocks, quantum magnetometers, and synchronization systems for GPS-denied and contested environments.

2 investors

Ravee Optics develops ultracompact optical communication systems and laser links for small satellites, space, and airborne platforms.

2 investors