The Houston-Pasadena-The Woodlands metro area spans ten counties, including Harris, Fort Bend, Montgomery and Galveston, and counts 162,055 employer establishments; 93.7 percent have fewer than 50 employees. The anchor is the water. Port Houston describes the Houston Ship Channel complex as the nation's largest port for waterborne tonnage, with more than 200 private and eight public terminals, and the Greater Houston Partnership describes Houston as the nation's top exporting metro, exporting $177.3 billion in 2025.
Many of the region's smaller fabricators, contractors and distributors sell to larger buyers that expect detailed documentation. The port and export figures describe the Houston Ship Channel complex and the Greater Houston Partnership's own region, not the ten-county Census metro; the establishment counts are metro-wide.