IoT tech startup Guardhat Inc. has moved its headquarters from Southfield to downtown Detroit.

The company relocated 14 employees last week into a third-floor 5,000-square-foot space at 1520 Woodward Ave., which is owned by Dan Gilbert's Bedrock LLC.

Gilbert's venture capital company Detroit Venture Partners invests in the startup, which raised more than $21 million of capital over the past year, according to a news release from Bedrock. Spokeswoman Sam West said Detroit Venture Partners first invested in Guardhat in 2015, a year after it was founded, and invested again in February.

The startup was created by Saikat Dey, who worked as CEO for the North America subsidiary of Russian steel company Severstal from 2011-14. It specializes in work safety through wearable technology and software. It has eight patents for its products, which include a smart hardhat that communicates with a safety control center, detects action in immediate surroundings and monitors vital signs.

The company employs a total of 22 employees and has satellite offices in Boulder, Colo.; Chicago; Bangalore, India; and Paris.

Management plans to hire another 10 employees in Detroit by the end of the year, according to West.

In its new Woodward digs, Guardhat joins Detroit Labs, a Gilbert-owned software company that leases space in the six-floor, 36,770-square-foot building.