Hardware Startups

C2 Blockchain Inc operates a 14MW Bitcoin mining facility using ASIC hardware and immersion cooling, and holds strategic digital asset investments in cryptocurrencies such as Bitcoin, Ethereum, Cardano, and DOG. The publicly traded company (OTC: CBLO) also develops AI-powered crypto chatbot and Web3 intelligence tools offered on a subscription basis.

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Cactus Materials develops and manufactures semiconductor materials and devices, with expertise across silicon, SiC, and GaAs as well as photonics and RF power applications. The company operates its own fabrication operations and serves the semiconductor industry.

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Calnetix develops high-speed motor generators, magnetic bearing systems, and embedded control electronics for industrial, aerospace, and military applications. The company provides comprehensive engineering design services including electromagnetic analysis, mechanical design, rotordynamic analysis, and custom power electronics integration.

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Capstone manufactures smart mirrors that integrate touchscreen and voice interfaces into household and commercial mirrors, enabling users to access voice assistants, entertainment, weather, traffic, and social media through surfaces that replace traditional mirrors.

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Captiva Spine manufactures medical implants, specifically the TransFasten-LSF system, a minimally invasive lateral sacroiliac joint fusion device for orthopedic spine surgery.

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CardioFlow develops medical devices for interventional cardiology, specifically addressing critical limb-threatening ischemia through non-surgical therapies. The company serves interventional cardiologists and cardiovascular specialists.

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Carnegie Foundry is a venture capital firm focused on seeding early-stage robotics and automation startups based in Pittsburgh, addressing the funding gap for hardware-driven industrial robotics companies. The firm targets startups across industries including warehouse automation, autonomous vehicles, agriculture, healthcare, energy, and manufacturing.

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Carpenter Technology supplies specialty alloys and stainless steel materials engineered for fastener manufacturing, offering high-performance metals for strength, wear, and corrosion resistance in high-stress, high-temperature, and high-pressure applications. It serves fastener shops and manufacturers of precision components, including fastening systems for electronic devices, and provides metallurgical support to customize materials.

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Cayuga Wireless develops Wi-Fi solutions based on proprietary, patented designs intended to improve wireless performance by using capacity unused by current wireless technologies. The company works in the wireless networking hardware space.

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CE Tools Inc. designs and manufactures tools and supplies for contractors, carpenters and DIYers in the building industry, including levels, releasable chalk lines, chalk, towels and wipes. Its products are made in the U.S.A. and sold to construction professionals and retail wholesalers.

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Centrus Diagnostics develops CentrusDx Smart Bands, wearable sensor wristbands using photoplethysmography (PPG) to provide continuous, cuffless blood pressure and EKG measurements for patients, caregivers, and health-conscious consumers. The devices target the diagnosis and management of hypertension, heart failure, and atrial fibrillation, and are pending FDA 510(k) clearance in the U.S. and CDSCO approval in India.

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Cerillo develops a research platform designed to standardize microbiome studies by addressing methodological variability and improving reproducibility. The platform serves researchers and organizations developing microbiome-based products and applications.

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CFVI provides flow control solutions designed to help clients simplify operations, reduce waste, and increase automation across various industries. The company operates with a nationwide presence and serves customers in more than 80 countries globally.

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Chilldyne makes negative pressure direct-to-chip liquid cooling systems designed to prevent leaks in high-performance computing and AI clusters. It serves data centers and is a member of the Daikin Group.

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ChompShop makes the ChompSaw, a kid-safe powered cutting tool designed to let children safely cut cardboard and other thin, soft materials for hands-on building projects. It targets young inventors aged 3+ and educators, offering free NGSS-aligned K-8 curriculum and classroom resources.

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Christini EV manufactures all-wheel-drive adventure motorcycles with hybrid and electric powertrains for off-road enthusiasts, hunters, military, and service sector operators. The company leverages two decades of powersports engineering experience to develop electric vehicles in the recreational and commercial mobility space.

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Lightengale develops an illuminated intravenous tubing (IVT) system that uses a light-emitting fiber optic cable along the tubing to help nurses quickly and accurately identify IV lines, reducing manual line-tracing errors. The device targets ICU settings, including pediatric and neonatal patients, to reduce medication errors and improve efficiency.

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Cielo develops smart thermostats and Wi-Fi AC controllers (such as Breez Max, Breez Eco, and Breez Plus) that add smart control to mini-splits, heat pumps, furnaces, and central HVAC systems. Its free Cielo Home app lets homeowners manage temperature, scheduling, energy monitoring, and geofencing across multiple HVAC systems to improve energy efficiency.

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CIRCA Scientific develops cardiac medical devices for electrophysiologists and interventional cardiologists, with solutions spanning esophageal temperature monitoring, transeptal access, and epicardial access procedures. The company is headquartered in Colorado and serves physicians performing complex cardiac interventions globally.

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Cleanbox Technology makes UVC LED decontamination hardware to clean and sanitize wearable devices such as virtual and augmented reality (XR) headsets and other hard-to-clean surfaces. Its patented products serve businesses and government organizations seeking hygiene solutions against surface contagions.

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CleanCore Solutions makes EPA-recognized cleaning devices that use Aqueous Ozone—tap water combined with dissolved ozone gas—to clean, deodorize, and sanitize surfaces without chemicals. Its products target the janitorial and cleaning industry, including sanitization, ice making, and laundry applications.

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CleanSpark develops and operates data centers across the United States, leveraging competitive energy pricing to generate compute capacity for Bitcoin mining and other high-performance computing workloads.

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Clear Guide Medical develops image-guidance technology, including the Clear Guide SCENERGY system, that provides precision targeting for ultrasound-guided invasive procedures while reducing the need for intermediate imaging. Its products are used by clinicians and resident learners in emergency medicine and other specialties, and are compatible with existing ultrasound equipment.

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ClearOne provides audio conferencing, video collaboration, and AV networking products, along with related technical support. It operates in the audiovisual communications and conferencing hardware category.

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