Hardware Startups

Quintessent develops optical connectivity solutions to address chip-to-chip communication bottlenecks in large-scale computing and AI systems. The company's technology aims to enable faster inter-chip communication as a critical infrastructure component for scaling compute performance.

5 investors

Rebellion Defense builds RBLN-OS, an "intelligence shield" for critical infrastructure that combines radar sensors, AI data fusion, and operational software to detect, predict, and respond to airspace and maritime threats. Its products, including Argus sensor arrays and Prism track-fusion modules, provide situational awareness and command-and-control of defensive effectors.

5 investors

Rebound Tech develops adaptive cooling infrastructure for industrial facilities dealing with high cooling demand, peak energy charges, and humidity control. Its systems target sectors such as food processing, aquatics, and turbine inlet cooling.

5 investors

Reditus Space builds reusable spacecraft systems that enable routine return of cargo from low Earth orbit, supporting in-space manufacturing and physical industrialization of space. The company provides infrastructure for commercial operators and manufacturers to deliver products and materials back to Earth economically.

5 investors

Revel provides a software platform for hardware development and operation that unifies the entire product lifecycle from prototyping through scaled production. The platform serves hardware engineers and organizations seeking to reduce fragmentation in development workflows.

5 investors

Revoy builds electric vehicles or electric drivetrain technology. The company is hiring engineering roles focused on mechanical, electrical, and supply chain functions.

5 investors

ROLI makes a piano learning system built around a four-octave, full-size keyboard with light-up keys and a hand-tracking device that uses AI to monitor a player's hands in 3D and give feedback on posture and finger positioning. Its accompanying platform offers 1,200+ songs, video lessons, and games for people learning to play piano.

5 investors

ROOM designs and sells modular, prefabricated office pods and phone booths that provide soundproof private spaces or collaboration areas within workplaces. The company sells directly to businesses, ships products flat for quick assembly, and emphasizes sustainability through recycled materials and reduced construction waste.

5 investors

Samara Aerospace designs and builds high-performance satellite platforms featuring the Hummingbird satellite bus, which combines pointing stability, agility, and power generation in a compact form for commercial, civil, and national security missions. The company's core technology integrates control authority into large deployable structures to enable precise maneuverability without sacrificing payload capacity.

5 investors

Scythe builds the M.52, an autonomous, battery-powered commercial mower with onboard perception technology (Scythe Sight) for landscape maintenance crews. The machine handles mowing tasks to increase crew capacity in the commercial landscaping industry.

5 investors

Senra Systems manufactures aerospace wire harnesses using advanced automation and proprietary software for rapid production. The company serves aerospace manufacturers and defense contractors seeking faster, precision-engineered harness assembly.

5 investors

Signaloid develops UxHw technology, a compute platform that propagates uncertainty by evaluating a distribution of inputs in a single program execution to produce distribution-based results. It targets stochastic workloads in quantitative finance, AI/ML, robotics, industrial automation, supply chain, and engineering, claiming large speedups over conventional Monte Carlo methods.

5 investors

Skyfront develops long-endurance hybrid-electric drones for defense and commercial applications, including surveillance and detection missions. The company's Perimeter drone achieves up to 13 hours of flight time while carrying large sensor payloads at a lower cost than traditional manned aircraft.

5 investors

Skyroot builds small-satellite launch vehicles, including the Vikram series of rockets that deliver satellites to low Earth and sun-synchronous orbits via dedicated and rideshare launches. Based in India, it launched Vikram-S, the country's first privately developed rocket, in 2022.

5 investors

Solestial develops and manufactures radiation-hardened silicon solar power modules for satellites and space applications. The company serves commercial and government customers requiring power solutions for large satellite constellations and space infrastructure.

5 investors

SparkMeter provides metering and low-voltage transformer-sensing hardware combined with software for billing, payments, prepaid metering, customer and asset management, and grid management. Its products are designed for minigrid and distribution utility operators, using RF-mesh network communications that work in low-bandwidth internet areas.

5 investors

SpinDrive develops active magnetic bearing (AMB) technology and provides services spanning client-specific AMB system design, parts supply, and commissioning for manufacturers of high-speed machines. It offers a flexible engagement model and proprietary design software, serving customers across industries as an independent AMB service provider.

5 investors

SpinLaunch develops a kinetic orbital launch system that uses a rotating accelerator to propel satellites into space at ultra-high speeds, reducing fuel and structural requirements compared to traditional rockets. The company targets enterprise customers seeking cost-effective satellite deployment and broadband connectivity services.

5 investors

Stämm develops a high-throughput bioprocessor for biomanufacturing, offering hardware for biologics production in research-use settings. It serves research and biopharmaceutical teams working on biologics.

5 investors

Sunflower Labs builds the Beehive, an autonomous drone security system where a self-charging drone ("the Bee") launches from a base station ("the Hive") to patrol and record activity on residential and industrial properties. The system integrates with existing security cameras and alarms, supports remote pilots and monitoring centers, and complies with FAA and EASA flight regulations.

5 investors

SWIR Vision Systems designs shortwave infrared (SWIR) cameras and sensors based on colloidal quantum dot (CQD) thin-film photodiodes fabricated on silicon readout wafers. Its Acuros CQD imaging products serve applications such as silicon inspection, laser beam profiling, machine vision, surveillance, and autonomous vehicle imaging.

5 investors

Tandem PV manufactures high-efficiency perovskite-silicon tandem solar panels designed for U.S.-based commercial-scale production, serving electricity demand from AI, electrification, and data infrastructure. The company's panels integrate into existing manufacturing supply chains with higher energy capture than conventional solar technology.

5 investors

Tin Can makes a Wi-Fi landline phone for children that allows voice calls only to a parent-approved contact list, blocking strangers, robocalls, and scammers. The device has no apps, texting, or games, is managed through a companion mobile app, and offers a free Tin Can-to-Tin Can calling plan plus a paid subscription for calling regular phone numbers.

5 investors

Toggle provides real-time quality control and part inspection for custom fabrication using computer vision to automatically identify and measure parts against CAD libraries.

5 investors