Huitt-Zollars, Inc. Share: Engineering Huitt-Zollars, Inc. Visit Website 10350 Richmond Ave., Ste. 300 Houston, TX 77042 (281) 496-0066 (281) 496-0220 (fax) About Map About Engineering, architecture, site development, construction management, surveying, sustainable design. What's Nearby? Distance: 5 10 15 20 25 50 mi.