National Geodetic Survey

United States Geological Survey

Texas Department of Transportation

Texas General Land Office

Texas Society of Professional Land Surveyors (State)

Texas Society of Professional Land Surveyors Gulf Coast Chapter No. 9

Texas Board of Professional Land Surveying
http://www.txls.state.tx.us/home.html
http://www.texas.gov/agency/464.html

G.P.S. Overview

Texas A&M Engineering Ethics Research

Harris County Appraisal District

Leica (G.P.S.)

Federal Emergency Management Agency (FEMA)

United State Coast Guard Navigation Center

Federal Geographic Data Committee

U.S. Department of the Interior Bureau of Land Management

Texas Natural Resource Information System

Texas Department of Information Resources

City of Houston Public Works and Engineering

Texas A&M University at Corpus Christi G.I.S.

American Congress on Surveying and Mapping ACSM National Society of Professional Surveyors NSPS

Texas Land Title Association

Topographic Maps of the US

Geomatics