A Boston-based startup that provides tenant experience apps and software to large commercial landlords has received $34.25 million in series B venture funding led by Insight Partners.

HqO will use the funding for expansion, including a doubling of its engineering team. The company, which is headquartered at 38 Chauncy St., recently opened offices in New York City, London and Paris, and has clients in a dozen U.S. and U.K. real estate markets. Clients include Innovation and Design Building owner Jamestown, Cambridge Crossing owner DivcoWest, Newton-based National Development and Blackstone’s EQ Office.

Office landlords offer the app to tenants and their employees, providing notifications on events and transit schedules. The app also can be used to control building access and give landlords location-based data.

HqO – short for “Headquarters Optimized” – has received a total of $53 million in venture funding. The latest round includes investments from Accomplice, Navitas Capital, Pritzker Group Venture Capital and JLL Spark.

CEO Chase Garbarino, a co-founder of BostInno tech site, founded HqO in 2015. The company brought on Dan Koh, a former chief of staff to Boston Mayor Marty Walsh, as partner in January.