Annis O'Sullivan Vollebekk Ltd. is a privately-owned, independent, multi-disciplined firm based in Ottawa, Ontario, providing superior land surveying services to a wide range of clients for over 50 years. Our team of experienced professionals offers condominium services, construction services, land severance, residential and utility surveys, and LiDAR photogrammetry. We are committed to delivering exceptional results, exceeding client expectations, and building long-lasting relationships.

Farley, Smith & Denis Surveying Ltd. is a multidisciplinary survey and engineering firm with a rich history in the Ottawa region, serving over 110 years. With extensive experience in residential, commercial, institutional, and governmental settings, we offer a full range of project development and services. Our team of surveyors, engineers, technologists, and support staff provides exceptional expertise in topographic surveys, construction services, condominium services, plans of subdivision, grading plans, reference plans, surveyors' real property reports, and property line retracements. We deliver the latest in site development technology, detailed estimates, and a commitment to finishing on time and on budget. Our long list of returning clients and solid reputation in the industry is built on a core philosophy of excellence and service.