satcom
(5)
CesiumAstro’s next frontier is the factory floor
Its radios can change their instructions in orbit. Now CesiumAstro is taking on a harder terrestrial problem: turning adaptable space hardware into a repeatable manufacturing business.
Seyed Tabatabaei
Seyed A. Tabatabaei is the founder, chairman and CEO of mmTron, a Redwood City fabless semiconductor company building high-linearity millimeter-wave MMICs for 5G, 6G, SATCOM, instrumentation and defense. A PhD engineer who has worked in mmWave since 1986, he spent decades at M/A-COM, Hewlett Packard, and Endwave before starting the design house Teramics and then founding mmTron in 2020. In April 2026 the company closed a $45M Series A led by Maverick Silicon.
mmTron
mmTron is a Redwood City, California semiconductor company that designs high-performance millimeter-wave integrated circuits (MMICs). Founded in 2020 by Seyed Tabatabaei and Mona Molaasgari, the company builds power amplifiers, low noise amplifiers, front-end modules, mixers, switches and wideband distributed amplifiers using GaAs, GaN, InP, SiGe and RFSOI process technologies. Its chips target the linearity, bandwidth and power-efficiency demands of satellite communications, 5G/6G wireless, aerospace and defense radar, and RF instrumentation up to 180 GHz. In April 2026 mmTron closed a $45M Series A led by Maverick Silicon.
James Kubik
James Kubik is the co-founder and CEO of Somewear Labs, a San Francisco company building satellite-and-mesh communications hardware and software for teams that operate where cell towers end. A Northwestern product-design engineer and former Intuit product leader, he launched Somewear in 2017 after a childhood friend drowned in a Lake Michigan sailing accident with no way to call for help. Somewear's pocket-sized devices - Relay and the hybrid mesh/satcom Node - now serve every U.S. Department of Defense service, federal agencies, wildland firefighters, and backcountry explorers. The company raised a $13.7M Series A in 2022 backed by a roster of Fortune 500 CEOs.
Somewear Labs
Somewear Labs builds satellite-powered hardware and a software-defined network that keep defense, government, and emergency-response teams connected when conventional networks fail. Its pocket-sized devices automatically route mission data across mesh radios and satellite links, integrate with tactical systems like ATAK, and serve users from helicopter paramedics and wildland firefighters to U.S. special operators.