BRANCHBURG, N.J. — Larken Associates has acquired Branchburg Centre, a two-story office building located at 3040 U.S. 22 West in Branchburg, for an undisclosed price. At the time of sale, the 90,000-square-foot Class B property was 74 percent leased. Kronus, Pure Technologies and Tri-County Care Management are tenants at the building. Larken is renovating and updating the property, including the commons areas, lobby and hallways. Additionally, the company will install new tenant signage, refresh the landscaping and renovate the entrance-facing employee parking lot. The name of the seller was not released.