The latest tranche of capital comes almost a year to the day since it raised $2 million from a group of investors, including its newest backer Thayer and Launchpad Venture Group.
Founded in 2010 (TLabs here and its B2B-facing service here), Groupize helps planners book hotel rooms automatically. It has a request-for-proposal (RFP) system for groups of less than 25 rooms.
The company says it is not seeking any additional investment and will use the money expand its sales operations and product development.
