FXSA is a full service Civil Engineering, Surveying & Mapping, Subsurface Utilities Engineering, Geographic Information Systems (GIS), Laser Scanning/3D Modeling, and UAV/Drone Services firm. We deliver responsive, practical, innovative, and cost effective solutions to our clients. FXSA is certified as a WOSB, HUBZone, State of Texas HUB, and DBE. Our NAICS Codes are: 541330, 541340, 541350, 541360, 541370, 236210, 236220.