ST. LOUIS (AP) — Tech company LockerDome says it is more than doubling its dowtown St. Louis office space and planning to hire up to 300 workers within five years.

LockerDome CEO and co-founder Gabe Lozano tells the St. Louis Post-Dispatch the 45-employee, 7-year-old company has outgrown its 6,800-square-foot digs into which it moved in 2012. LockerDome plans to occupy an 18,000-square-foot building a block away.

The company started as a sports social media platform but evolved into an interest-based social platform for gaming, music and politics.

Since its 2008 founding, LockerDome has raised more than $18 million from dozens of investors, including Cultivation Capital and St. Louis Cardinals President Bill DeWitt III.