Quiddity

Quiddity is an award-winning, full-service civil engineering, planning, surveying, and consulting firm established in 1976. We are dedicated to providing innovative solutions for both public infrastructure and private development projects. From essential services like wastewater treatment and highway design to vibrant multi-family housing and master-planned communities, our core mission is to build community—inside and out—creating lasting value across nearly 20 diverse public and private markets.

With a robust team of over 700 employees, spanning 13 offices in Texas and 2 in Florida, Quiddity fosters a dynamic and supportive work environment. This commitment to our team and mission has consistently earned us recognition as a Best Place to Work, alongside our achievement as an Engineering News-Record Top 500 Design Firm. We welcome you to discover more about our impact and opportunities.