Port Lavaca/Calhoun County Chamber of Commerce and Agriculture
- Includes county facts, visitors guide, relocation guide, and member directory.
- http://www.portlavacainfo.com/

Marshal Marine
- Construct and custom rig shallow draft bay boats. Includes company profile and details of models.
- http://www.marshall-marine.com/

Wild Game Waterer Co
- Product information about a device to assist hunters.
- http://www.tisd.net/~bayarea/

ChefMoz: Port Lavaca
- Detailed restaurant listings and dining guide with reviews submitted by the public, and links to outside reviews. Search by name, cuisine, rating, or location.
- http://chefmoz.org/United_States/TX/Port_Lavaca/

Rexco Inc.
- General contractor specializing in excavation, concrete, fabrication, safety, and residential work.
- http://www.rexcoinc.com/

First National Bank of Port Lavaca, Texas
- Includes bank and contact information.
- http://www.fnbportlavaca.com/

Testengeer Incorporated
- Engineering and technical services.
- http://www.testengeer.com/