Space Tech Startups

Stellar develops connectivity solutions for vehicles using cellular, Wi-Fi, and satellite technologies. The company addresses the challenge of providing ubiquitous high-speed internet connectivity.

1 investor

Sternula operates a commercial satellite network delivering affordable data connectivity to maritime vessels through AIS 2.0 technology, enabling digital services for ship operators. The company targets maritime industries globally, particularly smaller vessels and independent operators.

1 investor

Stratobotic develops stratospheric robots (high-altitude platforms) that use nature-inspired aerostatic drift and aerodynamic station-keeping modes to remain persistent at over 20 km altitude. The platforms capture ultra high-resolution imagery (under 10 cm ground resolution) for environmental, agricultural, and asset monitoring and change detection.

1 investor

Stratolia develops software for planning, operating, and supervising stratospheric balloon missions at altitudes of 15-35 km. The platform is designed for defense applications requiring sovereign capability, and serves research and telecommunications markets.

1 investor

Stratotegic develops navigable High-Altitude Platform Station (HAPS) stratospheric balloon systems with autonomous flight control and navigation, providing persistent intelligence, surveillance, and reconnaissance (ISR) and communications augmentation for defence, government, commercial, and research customers. Its dual-use platforms support missions such as Arctic sovereignty, border and maritime monitoring, wildfire and disaster response, and non-terrestrial telecommunication networks, with a stated focus on Canada and allied operations.

1 investor

Sturfee provides a Visual Positioning Service (VPS) that enables augmented reality experiences across entire cities. It offers coverage for cities and countries to support AR applications.

1 investor

Suden Density develops innovative coating technology for smart coatings. The company has received NSF SBIR/STTR funding for research and commercialization of its coating solutions.

1 investor

Stellar Ventures is a venture capital firm that invests in and partners with entrepreneurs building businesses that use space technology.

1 investor

TCarta develops satellite remote sensing and marine geospatial intelligence products that deliver high-precision data on coastal and ocean environments. The company serves government, energy, and environmental sectors needing maritime intelligence and shallow water bathymetry mapping.

1 investor

Telepathic (Telepath Technologies) develops non-invasive brain-computer interfaces that read, interpret, and transmit neural signals in real time without surgery or implants. It combines hardware, software, and AI to enable communication and interaction between humans and machines.

1 investor

Terafab produces AI chips at scale using solar power, targeting both terrestrial and orbital applications to meet future demand. The company combines chip manufacturing with plans for space-based compute infrastructure to support planetary-scale AI systems.

1 investor

Teralink builds high-speed communication systems for satellites, drones, and other airborne platforms.

1 investor

Terrabotics provides remote 3D terrain mapping, satellite and aerial image analytics, and digital elevation models for natural resource management, serving energy, mining, infrastructure, and environmental clients worldwide. It delivers processed earth observation data and terrain intelligence to help clients plan, inspect, and monitor industrial and environmental projects remotely.

1 investor

TerraByte builds foundation models and a secure mission platform that make satellite and aerial Earth observation imagery queryable across archive data and, increasingly, in real time on orbital sensors. It serves analysts, climate scientists, journalists, city planners, and large enterprises seeking to turn geospatial questions into actionable decisions.

1 investor

1 investor

The Spaceport Company operates sea-based launch infrastructure, including a commercial launch pad ship and semi-submersible offshore platforms, for offshore missile testing and orbital launch missions. It serves government agencies and commercial aerospace customers in the United States, with in-house design, engineering, fabrication, and regulatory compliance capabilities.

1 investor

A Chinese aerospace thermal management company that manufactures heat-resistant coatings, insulating films, porous materials, and phase-change systems for satellites and rockets. The company has applied its proprietary coatings to over 10 satellites and operates an automated production line for aerospace heat pipes.

1 investor

Tilebox is a platform for teams building geospatial products that combines a live geospatial data catalog, workflow coordination, and job-level logging and tracing in one system. It lets engineers query data across open and commercial sources, run their own processing code on infrastructure they control, and debug failures, with support for agents to write, run, and fix workflows.

1 investor

Translunar is a company founded by Purdue PhD candidates that won first place in the university's New Venture Challenge in 2025. The page does not provide information about the company's actual business, products, customers, or industry.

1 investor

Tron Future Tech develops phased array systems and satellite communication technologies for aerospace, defense, and next-generation connectivity applications. The company specializes in antenna design, RF systems, and space-terrestrial satellite communication platforms serving government agencies and commercial space ventures.

1 investor

TTP (formerly The Technology Partnership) is a technology and product development company that works on projects across deep tech, life sciences, and health tech for international clients and start-ups. Founded in 1987, it operates a campus-based team of over 550 people delivering product development and engineering work.

1 investor

TUSK IC is a fabless semiconductor company that designs mmWave CMOS chips and antenna modules for Ka-band satellite communications, targeting flat-panel antenna development for LEO and MEO constellations. It offers beamformer ICs and modular antenna elements aimed at lowering the cost of Satcom systems for commercial and industrial developers.

1 investor

UltiSat provides managed satellite, terrestrial, and wireless network services along with cybersecurity and systems integration for defense, national security, civil government, and critical infrastructure customers. The company delivers secure communications and networking solutions for government and humanitarian operations in remote and austere environments.

1 investor

Unistellar designs smart telescopes and augmented reality binoculars with enhanced vision technology for astronomy enthusiasts and citizen scientists. The products use real-time light amplification to enable detailed observation of celestial objects and terrestrial features, with automated pointing and tracking capabilities.

1 investor