Space Tech Startups

SatSure Skies is a platform for digitized aeronautical information management that converts terrain, obstacle, and route data into structured, ICAO-compliant formats. It serves airspace managers, airline operators, and airport operations teams to support pre-flight planning, airspace use planning, obstacle avoidance, and airport digital twins.

1 investor

Satyukt develops satellite data processing algorithms for agriculture, using earth observation to deliver crop health monitoring, soil moisture, and yield predictions at farm scale. The company serves agricultural decision-makers in India with near real-time insights derived from microwave/SAR satellite data.

1 investor

Sensate Robotics develops tactile sensors and robotic gripping systems that enable machines to sense touch and handle delicate, irregular objects. The company targets agriculture, initially focusing on fruit handling and inspection in crops like avocados and apples.

1 investor

SETS develops electric propulsion systems and thrusters for satellites. The company manufactures Hall-effect thrusters, xenon storage systems, and power processing units for aerospace applications.

1 investor

ShadowBreak Intl provides geospatial intelligence solutions by acquiring, analyzing, and distributing spatial data for military, commercial, and individual users. The company serves journalists, lawyers, governments, and organizations needing real-time intelligence for disaster relief, defense, and operational decision-making.

1 investor

Shepherd Space Systems is a defense-focused aerospace company that designs and manufactures solid rocket motors, using a proprietary vacuum-isolated extrusion process to produce propellant grains with reduced air voids and tighter ballistic performance. It serves defense program offices, prime contractors, and research laboratories, executing contracts for tactical propulsion, counter-UAS, and payload delivery applications.

1 investor

UFORCE builds autonomous defense systems, including combat-proven platforms used in the Russia-Ukraine War for missions in contested environments. The company pairs advanced AI software with hardware and is expanding from Ukraine to NATO allies and the U.S.

1 investor

Sidereus Space Dynamics was a space technology research and development company operating in Italy and Europe. It has concluded its R&D program and is now in discussions with industrial partners regarding the potential acquisition of its technology assets, infrastructure, and intellectual property.

1 investor

Signalink provides engineering, technical, logistical, and programmatic support services to the aerospace and defense sectors.

1 investor

Silent Capital is a private venture syndicate that gives its accredited-investor members access to multi-stage aerospace, defense, and deep tech deals. It partners exclusively with the early-stage defense and deep tech fund Silent Ventures.

1 investor

Silentium Defence designs and deploys passive radar systems and related software for covert, low-emission surveillance across air, land, maritime and space domains. It serves defence, government and commercial customers with situational awareness, mission planning tools and space surveillance data feeds.

1 investor

Sintavia designs and additively manufactures PTMS (Power & Thermal Management Systems) components and subsystems for the aerospace and defense industry using advanced manufacturing techniques. The company specializes in thermodynamic, propulsion, and power systems that offer weight savings and improved performance compared to conventionally manufactured parts.

1 investor

Skaha (Skaha Remote Sensing Ltd., also referred to as Skaha Labs) develops Earth remote sensing technology, including work on microwave remote sensing for soil moisture estimation and geophysical data validation. The company handles sensor development, RF circuitry, antenna design, and fieldwork for collecting and validating geophysical data.

1 investor

Skyband builds the M100, a resilient position, navigation, and timing (PNT) hardware system that augments GPS for aircraft by using LEO-powered navigation, inertial sensing, and real-time spoofing/jamming detection. It serves aviation operators facing GPS-contested environments and integrates with existing avionics to provide pilots with alerts and situational awareness.

1 investor

SkyMapper operates a decentralized network of telescopes and all-sky cameras that lets astronomers, researchers, and citizen scientists remotely control equipment, capture observations, and store blockchain-verified astronomical data. The network provides continuous sky and orbital coverage for tracking satellites, asteroids, comets, exoplanets, and transient celestial events.

1 investor

Skymerse provides an automated flight operations decision platform for airlines that checks every flight against live NOTAMs, weather, runway constraints, and aircraft limits to generate flight-ready operational decisions. The company also operates Notamify, a product that transforms NOTAM data into briefings and operational signals for airline crews and dispatchers.

1 investor

Skyrora designs and manufactures launch vehicles for small satellite operators seeking access to space. The company is developing rocket technology with a focus on sustainability and environmental impact reduction.

1 investor

Slip Signal develops electromagnetic interference (EMI) solutions for semiconductor design and electronic products. The company helps engineers design electronics that pass EMI regulatory testing before market entry.

1 investor

Slooh provides online access to control real telescopes located in the Canary Islands, Chile, and Australia, letting users schedule observations across both hemispheres. It offers live feeds, guided exploration, and a community of over 450,000 members for astronomy education and stargazing.

1 investor

1 investor

A space-focused startup providing support and resources to early-stage companies through the European Space Agency's Business Incubation Centre in Greece, with access to technical expertise, infrastructure, and an industry network.

1 investor

Space Capital is a venture capital firm that invests in the space economy, focusing on GPS, geospatial intelligence, and satellite communications. It authored the book "The Space Economy" and created investment frameworks (the GPS, GEOINT, and SatCom Playbooks) used by financial firms and governments.

1 investor

Space Capital is a venture capital firm investing in space technology companies across infrastructure, distribution, and applications layers, including GPS, geospatial intelligence, and satellite communications. With over $1 billion in assets under management, it is the world's largest space-focused venture capital firm.

1 investor

Space Cargo Unlimited builds a multi-platform ecosystem for in-space manufacturing and research in Low Earth Orbit, including its BentoBox payload system and REV1 reusable orbital return vehicle. It operates end-to-end microgravity missions—from payload definition through in-flight operations and recovery—to let industrial customers develop, test, and scale products such as alloys and semiconductor crystals in microgravity.

1 investor