Sand Hill Angels

GaeaStar is a manufacturer focused on creating environmentally friendly products aimed at reducing waste and pollution. The company has developed patented technology to produce a new category of uniquely thin clay cups made from locally sourced, natural materials. With an estimated 500 billion single-use cups used annually and less than 1% recycled, GaeaStar addresses the urgent need for sustainable alternatives, particularly as industries face pressure to adopt circular solutions by 2030. By utilizing geo-neutral materials and efficient additive manufacturing techniques, GaeaStar's products are designed to be sustainable and produce zero waste, thereby promoting conscious consumption while enhancing performance and cost-effectiveness for businesses and consumers alike.

ICON is a construction technologies company that focuses on revolutionizing homebuilding through the use of 3D printing, robotics, software, and advanced materials. The company specializes in constructing single-story, mid-size homes, particularly in developing countries, allowing for faster and more cost-effective building compared to traditional methods. By leveraging innovative technologies, ICON aims to address the housing needs of underserved communities, streamlining the construction process for engineers and builders alike.

Aligned Carbon Inc. is a manufacturer of carbon nanotubes (CNTs) specifically designed for the integrated circuit industry. Established in 2018 and headquartered in Santa Clara, California, the company produces semiconductor-pure, aligned CNTs that are available on industry-standard wafers at a manufacturing scale. These CNTs are uniquely aligned in arrays that cover full semiconductor substrates and can be purified to be either entirely semiconducting or metallic. Aligned Carbon's technology facilitates a transition away from traditional silicon, allowing semiconductor foundries to achieve significant improvements in speed, energy efficiency, and performance in applications such as logic processing, signal processing, and advanced sensing technologies. The company's innovations enable clients to enhance computing applications through the integration of carbon nanotube logic with conventional silicon logic and memory, thereby addressing growing demands in the semiconductor sector.

GaeaStar is a manufacturer focused on creating environmentally friendly products aimed at reducing waste and pollution. The company has developed patented technology to produce a new category of uniquely thin clay cups made from locally sourced, natural materials. With an estimated 500 billion single-use cups used annually and less than 1% recycled, GaeaStar addresses the urgent need for sustainable alternatives, particularly as industries face pressure to adopt circular solutions by 2030. By utilizing geo-neutral materials and efficient additive manufacturing techniques, GaeaStar's products are designed to be sustainable and produce zero waste, thereby promoting conscious consumption while enhancing performance and cost-effectiveness for businesses and consumers alike.

Nanochon is a medical device company focused on developing innovative solutions for treating cartilage damage in joints. Utilizing 3D printing technology and proprietary nanomaterials, the company aims to create implantable devices that replace lost or damaged cartilage and stimulate new tissue growth. This approach enables healthcare providers to offer cost-effective, on-demand treatments tailored to young and active patients suffering from knee injuries or diseases.

ICON is a construction technologies company that focuses on revolutionizing homebuilding through the use of 3D printing, robotics, software, and advanced materials. The company specializes in constructing single-story, mid-size homes, particularly in developing countries, allowing for faster and more cost-effective building compared to traditional methods. By leveraging innovative technologies, ICON aims to address the housing needs of underserved communities, streamlining the construction process for engineers and builders alike.

Relativity Space, Inc. is an aerospace company based in Long Beach, California, founded in 2015. It focuses on designing, developing, and manufacturing 3D-printed rockets, utilizing a vertically integrated technology platform that combines 3D printing, artificial intelligence, and autonomous robotics. This innovative approach enables the company to construct rockets with significantly fewer components—up to 100 times fewer—and complete the building process in under 60 days. Relativity Space also provides production, testing, and launch services for satellites, establishing a simplified supply chain that addresses the evolving demands of the aerospace industry. With its commitment to pioneering advancements in manufacturing, Relativity Space is positioning itself at the forefront of modern aerospace solutions.

Mighty Buildings, Inc. is a San Francisco-based company founded in 2017 that specializes in the manufacture of 3D printed custom homes. Utilizing advanced construction technology, the company employs 3D printing, robotics, and automation to create modular homes that aim to disrupt the residential housing market. Mighty Buildings has developed a proprietary building material known as Light Stone Material (LSM), which mimics synthetic stone and provides advantages such as faster construction, zero waste, and improved thermal regulation compared to traditional materials like concrete, wood, or steel. The company's innovative approach focuses on producing prefabricated, environmentally friendly, and climate-resilient homes, thereby facilitating smart urban development and making housing more affordable.

Aligned Carbon Inc. is a manufacturer of carbon nanotubes (CNTs) specifically designed for the integrated circuit industry. Established in 2018 and headquartered in Santa Clara, California, the company produces semiconductor-pure, aligned CNTs that are available on industry-standard wafers at a manufacturing scale. These CNTs are uniquely aligned in arrays that cover full semiconductor substrates and can be purified to be either entirely semiconducting or metallic. Aligned Carbon's technology facilitates a transition away from traditional silicon, allowing semiconductor foundries to achieve significant improvements in speed, energy efficiency, and performance in applications such as logic processing, signal processing, and advanced sensing technologies. The company's innovations enable clients to enhance computing applications through the integration of carbon nanotube logic with conventional silicon logic and memory, thereby addressing growing demands in the semiconductor sector.

Relativity Space, Inc. is an aerospace company based in Long Beach, California, founded in 2015. It focuses on designing, developing, and manufacturing 3D-printed rockets, utilizing a vertically integrated technology platform that combines 3D printing, artificial intelligence, and autonomous robotics. This innovative approach enables the company to construct rockets with significantly fewer components—up to 100 times fewer—and complete the building process in under 60 days. Relativity Space also provides production, testing, and launch services for satellites, establishing a simplified supply chain that addresses the evolving demands of the aerospace industry. With its commitment to pioneering advancements in manufacturing, Relativity Space is positioning itself at the forefront of modern aerospace solutions.

Volumetric, Inc. is an advanced biomaterials and biofabrication company based in Houston, Texas, established in 2014. It specializes in developing a 3D bioprinting platform designed to create vascularized human tissue, which can be utilized in various applications such as life sciences, drug discovery, and medical devices. The company offers bioprinters and bioinks that aim to facilitate innovations in biomaterials, cancer research, and the potential replacement of human organs. By focusing on creating materials embedded with living cells, Volumetric is at the forefront of integrating cutting-edge technology into healthcare solutions.

Volumetric, Inc. is an advanced biomaterials and biofabrication company based in Houston, Texas, established in 2014. It specializes in developing a 3D bioprinting platform designed to create vascularized human tissue, which can be utilized in various applications such as life sciences, drug discovery, and medical devices. The company offers bioprinters and bioinks that aim to facilitate innovations in biomaterials, cancer research, and the potential replacement of human organs. By focusing on creating materials embedded with living cells, Volumetric is at the forefront of integrating cutting-edge technology into healthcare solutions.

Relativity Space, Inc. is an aerospace company based in Long Beach, California, founded in 2015. It focuses on designing, developing, and manufacturing 3D-printed rockets, utilizing a vertically integrated technology platform that combines 3D printing, artificial intelligence, and autonomous robotics. This innovative approach enables the company to construct rockets with significantly fewer components—up to 100 times fewer—and complete the building process in under 60 days. Relativity Space also provides production, testing, and launch services for satellites, establishing a simplified supply chain that addresses the evolving demands of the aerospace industry. With its commitment to pioneering advancements in manufacturing, Relativity Space is positioning itself at the forefront of modern aerospace solutions.

Orbital Composites specializes in the fields of 3D printing, Composites, robotics automation, and carbon fiber. Their Robotic automation offers tremendous advantages at the fraction of the cost of traditional manufacturing systems, including scalability, and complex 3D printing on curves.

BotFactory Inc. is a manufacturer of desktop electronic circuit printers, specializing in innovative 3D printing solutions for electronic prototypes. Established in 2013 and located in Long Island City, New York, the company’s primary product, Squink, enables users to design and fabricate single and multilayered rigid and flexible circuits using conductive ink, solder paste, and component placement technology. BotFactory’s printers leverage advanced inkjet nanotechnology, computer vision, and artificial intelligence to produce complete electronic boards within hours, significantly enhancing the speed of product development for clients. Their offerings cater to a diverse clientele, including Fortune 500 companies, research labs, aerospace firms, universities, and electronics manufacturers, with applications spanning flexible electronics, e-textiles, drone technology, and the Internet of Things.

Orbital Composites specializes in the fields of 3D printing, Composites, robotics automation, and carbon fiber. Their Robotic automation offers tremendous advantages at the fraction of the cost of traditional manufacturing systems, including scalability, and complex 3D printing on curves.

BotFactory Inc. is a manufacturer of desktop electronic circuit printers, specializing in innovative 3D printing solutions for electronic prototypes. Established in 2013 and located in Long Island City, New York, the company’s primary product, Squink, enables users to design and fabricate single and multilayered rigid and flexible circuits using conductive ink, solder paste, and component placement technology. BotFactory’s printers leverage advanced inkjet nanotechnology, computer vision, and artificial intelligence to produce complete electronic boards within hours, significantly enhancing the speed of product development for clients. Their offerings cater to a diverse clientele, including Fortune 500 companies, research labs, aerospace firms, universities, and electronics manufacturers, with applications spanning flexible electronics, e-textiles, drone technology, and the Internet of Things.

BotFactory Inc. is a manufacturer of desktop electronic circuit printers, specializing in innovative 3D printing solutions for electronic prototypes. Established in 2013 and located in Long Island City, New York, the company’s primary product, Squink, enables users to design and fabricate single and multilayered rigid and flexible circuits using conductive ink, solder paste, and component placement technology. BotFactory’s printers leverage advanced inkjet nanotechnology, computer vision, and artificial intelligence to produce complete electronic boards within hours, significantly enhancing the speed of product development for clients. Their offerings cater to a diverse clientele, including Fortune 500 companies, research labs, aerospace firms, universities, and electronics manufacturers, with applications spanning flexible electronics, e-textiles, drone technology, and the Internet of Things.

Vantage Robotics, LLC, founded in 2013 and headquartered in San Leandro, California, specializes in the development and manufacturing of camera drones. The company's flagship product, Snap, is a flying camera designed to capture high-quality photos and videos with advanced smart tracking capabilities. Vantage Robotics has distinguished itself in the competitive $7 billion camera drone market by addressing key challenges related to ease of use. Snap has achieved significant pre-sales and received a notable FAA waiver for commercial use near people, positioning it uniquely within the industry. The company has garnered interest from major players, including Apple and Amazon, and has strategic backing from prominent investors in the drone sector. Using innovative gimbal control techniques and precise motors, their drones offer enhanced durability and functionality tailored for commercial and government applications.

Vantage Robotics, LLC, founded in 2013 and headquartered in San Leandro, California, specializes in the development and manufacturing of camera drones. The company's flagship product, Snap, is a flying camera designed to capture high-quality photos and videos with advanced smart tracking capabilities. Vantage Robotics has distinguished itself in the competitive $7 billion camera drone market by addressing key challenges related to ease of use. Snap has achieved significant pre-sales and received a notable FAA waiver for commercial use near people, positioning it uniquely within the industry. The company has garnered interest from major players, including Apple and Amazon, and has strategic backing from prominent investors in the drone sector. Using innovative gimbal control techniques and precise motors, their drones offer enhanced durability and functionality tailored for commercial and government applications.

Bagaveev Corporation is a startup based in Half Moon Bay, California, that specializes in the design, development, and testing of advanced rocket engines specifically tailored for nanosatellite launches. Established in 2013, the company focuses on creating pressure-fed, 3D-printed aerospike engines that are intended to power both the lower and upper stages of a 35-foot rocket capable of delivering 10-12 kg nanosatellites into low Earth orbit and Sun-synchronous orbit. Bagaveev aims to provide reusable launch solutions, enabling clients the capability to launch nanosatellites on a weekly basis, with integrated guidance, navigation, and control systems to facilitate reliable operations. The company is supported by key figures in the tech investment community, including notable accelerators and advisors.