smart-lock
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CANDY HOUSE
CANDY HOUSE, Inc. is the consumer-hardware company behind Sesame, the retrofit smart lock that mounts over an existing deadbolt with adhesive tape and turns a smartphone, fingerprint, card, PIN or face into a key. Founded in 2014 by Stanford engineer Jerming Gu and famous for a 2015 Kickstarter that raised about $1.4M, the company built an open ecosystem around SesameOS - locks, touch and face readers, a coin-sized Matter hub, sensors and finger robots - aimed at making smart-home access affordable, rental-friendly and developer-open.
Jerming Gu
Jerming Gu is the Taiwanese founder and CEO of CANDY HOUSE, the company behind SESAME, the smart lock that clamps onto an existing deadbolt and turns a smartphone into a key. He started the company as a Stanford mechanical engineering master's student in 2014 with co-founder Jongho Shin, then turned a 3D-printed dorm-room prototype into a Kickstarter phenomenon that raised roughly $1.4 million in 2015. After a decade building a dominant smart-lock business in Japan - including funding from ITOCHU and a strategic alliance with lock maker MIWA - he relaunched CANDY HOUSE in the US and Canada in 2025 with a lineup spanning SESAME 5, face recognition, palm-vein biometrics and Matter-compatible hubs.
Level Home
Level Home is a Redwood City smart-lock company founded by ex-Apple engineers that builds the world's first invisible smart lock - all the electronics hidden inside the deadbolt itself. Backed by Walmart, Lennar, and Cox Communications, Level raised $171M and was acquired by ASSA ABLOY in 2024.
John Martin
John Martin co-founded Level Home in 2016 with the idea that the best technology is invisible - literally. After a snowstorm stranded him and his family at Lake Tahoe without keys, he set out to reinvent the deadbolt from scratch. The result: Level Lock, a smart lock engineered to hide entirely inside the door, preserving home aesthetics while adding full smartphone control. Martin spent decades across Microsoft, Starbucks, Apple, and Nokia before building Level into a $171M-funded company that was ultimately acquired by ASSA ABLOY in 2024 - a hardware giant recognizing that the future of the lock is invisible.