Deep Tech Startups

Sovereign Materials is a materials and chemical engineering company focused on purification and advanced materials development, led by a team with backgrounds in chemical engineering and climate/earth science research.

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

European Space Ventures AG is a space sector company based in Frankfurt. The page provides limited operational details, focusing instead on capital raising activities.

1 investor

Space Frontier develops high-density hybrid rocket propulsion using proprietary bio-based fuel formulations, tailored grain geometries and additive manufacturing, keeping fuel and oxidizer separated for safer handling. Its systems are configured for applications including satellite propulsion, solid turbojets and hypersonic flight profiles, with AI-assisted combustion and regression-rate modelling.

1 investor

Space Redi builds mission planning tools for complex space missions, drawing on expertise in bioastronautics and mission control operations. The company serves the space industry with software and engineering support.

1 investor

Space Alpha Insights builds SAR-XL satellites that combine X and L radar bands to capture high-resolution Earth observation data, using on-board AI for in-orbit processing and near-real-time object detection. Paired with a predictive analytics platform, it delivers remote sensing data to the security, agriculture, insurance, infrastructure, environmental, and logistics sectors.

1 investor

Space CoLAB develops diamond-based quantum transceivers that operate at room temperature without cryogenics, providing quantum-secure communications for mobile platforms, remote locations, and tactical environments. The company targets defence and critical infrastructure customers, manufacturing its hardware through Australia's national fabrication network.

1 investor

SpacePharma develops pharmaceutical research and manufacturing systems designed to operate in microgravity environments aboard satellites and spacecraft. The company uses space-based platforms to conduct drug crystallization, organ-on-chip testing, and other biomedical research that benefits from microgravity conditions.

1 investor

SpacePoint provides space and satellite education programs, including workshops and training delivered online, onsite, or hybrid, along with a SatKit product. The company serves students and explorers, including minors through parents or institutions.

1 investor

Space Protocol develops a decentralized operating system for space operations that provides real-time sensor calibration, satellite positioning, and orbital compliance monitoring. The platform enables autonomous satellites to sense, share, and react while delivering trustless data verification and risk quantification for space operators and defense agencies.

1 investor

SpaceTenna develops low-power phased array antenna technology for adaptive beam forming from space, aimed at converting LEO satellites into adaptive beam forming systems at lower power and cost. It builds adaptive RF payloads for space applications, targeting satellite internet and antenna manufacturers, based on its parent company NexTenna's antenna technology.

1 investor

A company focused on research, development, and application of high-speed flight technology, including rocket software and flight test data sharing such as base pressure measurement data for rockets of varying diameters.

1 investor

Ambition Capital is a venture capital firm investing in early-stage critical technologies focused on national security, economic resilience, and global leadership. The firm partners with founders building next-generation systems across sectors including defense, advanced manufacturing, supply chain, and AI-integrated technologies.

1 investor

SpAItial develops physically-grounded world models, a form of generative AI that creates and reasons about the appearance and physics of real and imagined 3D environments. Its models are aimed at applications spanning gaming and entertainment, CAD engineering and construction, VR/AR, and robotics.

1 investor

Sparsit develops Sparse Super Sampling (S3), a machine learning rendering technology that samples only the most critical pixels in a 3D scene to accelerate photo-realistic and real-time rendering by up to 10x while maintaining a target visual quality. Its rendering suite serves game developers and offline rendering workflows such as product visualization, architecture, and VFX, with applications spanning graphics, image/video capture, radiance fields, and LiDAR.

1 investor

Spear.ai develops maritime defense technology combining hardware, AI-enabled tactical data software, and services for acoustic monitoring and situational awareness. Its offerings target maritime defense and military (warfighter) use cases, including persistent underwater surveillance and threat detection.

1 investor

The Danforth Technology Company (DTC) is a subsidiary of the Donald Danforth Plant Science Center that helps commercialize plant-science technologies developed by Danforth Center scientists. It supports early-stage startup formation through intellectual property development, licensing, seed funding, and early management, connecting scientists with entrepreneurs and investors.

1 investor

Spec-Imaging develops precision optical systems for real-time spectral analysis, color measurement, and particle sizing in industrial process streams. The company provides inline, reagent-free optical measurement tools designed for demanding manufacturing environments including food, beverage, chemicals, dairy, and biotech.

1 investor

Specac designs and manufactures accessories and sample preparation solutions for spectroscopy applications including FTIR, XRF, and NIR, serving customers in academia, manufacturing, and diagnostics globally. The company operates a 33,000 square-foot manufacturing facility in London and has offices across the UK, USA, Singapore, and China.

1 investor

Mindgrove Technologies designs GHz-class processors and system-on-chips (SoCs) for embedded and edge computing applications, targeting the middle market with cost-optimized silicon built on the open RISC-V architecture. The company serves customers in video security, automotive, biometric access, and smart device segments with production-ready chips developed under India's Design Linked Incentive scheme.

1 investor

Specific Biologics develops in vivo genome editing therapeutics based on its Dualase editors, which use a two-site mechanism to remove, repair, or insert DNA sequences, with an initial focus on correcting expanded DNA repeats. Its pipeline targets CNS, lung, and liver genetic diseases using single AAV or lipid nanoparticle/polymer-encapsulated all-RNA delivery.

1 investor

Specter provides AI-based monitoring that analyzes video feeds from critical infrastructure and public sites to detect anomalies such as intruders, unknown vehicles, leaks, crowd incidents, and abnormal emissions. It serves operators of facilities like power plants, oil rigs, data centers, substations, stadiums, shipping docks, and nuclear plants.

1 investor

Spectra Intel develops hyperspectral imaging instruments and analysis software for astronomical observation and industrial/environmental monitoring. The company offers customized hyperspectral solutions bundled with reference spectral data and user-friendly analysis software.

1 investor

Spectral is the creator of SCALE, a compiler toolkit that recompiles CUDA code to run on a broad range of GPUs, including AMD and NVIDIA accelerators, without requiring code rewrites. Built on LLVM and Clang, it targets GPU developers who want vendor optionality and improved performance from a single CUDA codebase.

1 investor