Mercator, Inc., is a GPS RENTALS & SALES company in Houston, Texas, serving GPS users world-wide since 1986 with over 50 years of combined experience in selling and leasing equipment to the survey industry.

Automatic Power/Pharos Marine Group is the world leader in aids to navigation with a track record that is more than a century old.

GPS rental, sales, leasing and services for a variety of surveying and mapping equipment and software. GeoPlane Services (Trimble & Leica Geosystems).