Quiddity is an award-winning, full-service civil engineering, planning, surveying, and consulting firm providing innovative solutions for public infrastructure and private development projects. With more than 700 employees across 13 offices in Texas and 2 offices in Florida, we support nearly 20 public and private markets. From wastewater treatment and highway design to multi-family housing and master-planned communities, we’ve been building community—inside and out—since 1976. Remaining true to our mission has helped us earn recognition as an Engineering News-Record Top 500 Design Firm and be consistently voted a Best Place to Work by local and regional publications. Learn more at quiddity.com.
| Website | http://www.quiddity.com |
| Revenue | $123.8 million |
| Employees | 679 (534 on RocketReach) |
| Founded | 1976 |
| Address | 6330 West Loop S Suite 150, Houston, Texas 77030, US |
| Technologies |
JavaScript
,
HTML
,
PHP
+48 more
(view full list)
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| Industry | Civil Engineering, Content, Media and Entertainment, Content Marketing, Sales and Marketing, Publishing, Content and Publishing, Social Network, Internet Services |
| Keywords | Civil Engineering, Planning, Surveying, Consulting, Infrastructure, Construction, Project Management, Land Development, Environmental Consulting, Transportation Planning, Water Resources, Municipal Engineering, Geotechnical Engineering, Structural Engineering, Public Works, Site Development, Design-Build, Engineering Consulting Services, Full Service Engineering, Professional Services |
| Competitors | PayPal, Intuit, NetSuite, Sage, Zoho, Bill.com, Square, Xero, FreshBooks, Wave HQ +37 more (view full list) |
Looking for a particular Quiddity employee's phone or email?
Quiddity Questions
The Quiddity annual revenue was $123.8 million in 2026.
Clayton Black is the Chief Executive Officer and President of Quiddity.
534 people are employed at Quiddity.
Quiddity is based in Houston, Texas.
Top Quiddity Employees
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Clayton Black
Chief Executive Officer and President at Quiddity
Bellaire, TX, US23 -
Richard Tan
CFO at Quiddity
New York, NY, US2 -
Terry Reeves
Executive Vice President at Quiddity
Houston, TX, US45+ -
Alan Black
Vice President at Quiddity
Houston, TX, US15+ -
23
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Drew Crow
Chief Operating Officer at Quiddity
Houston, TX, US1 -
Martin Murdock
Vice President at Quiddity
Bellaire, TX, US24 -
Mark Holliday
Vice President, North Texas at Quiddity
Plano, TX, US25 -
Nick Bokaie
Senior Vice President Transportation at Quiddity
Houston, TX, US14 -
Ken Rogers
Vice President at Quiddity
San Antonio, TX, US25
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