Annis O’Sullivan Vollebekk Ltd. (AOV) is a privately-owned, independent, multi-disciplined firm based in Ottawa, Ontario. Founded in 1964, with offices in the Ottawa region, including Embrun and Kemptville. AOV is a professional land surveying firm offering clientele a wide range of services in topographic, hydrographic, cadastral, geodetic LiDAR, Photogrammetric and engineering surveys. AOV also provides a full range of land development consulting services, including severances, subdivisions, and condominiums.