LDC has served a variety of private sector clients, those including:
- AltaMed
- BreitBurn Energy Companies
- Bluestone Communities
- Brea Canon Oil Company
- Bright & Brown, Law Offices
- California State Bank
- Chevron
- Comstock Homes
- D.C. Corporation
- DR Horton
- The Estate of Albert Levinson
- Farmer & Ridley, Law Offices
- Far West Industries
- Griffin Communities
- K. Hovnanian Companies of California
- KLL Investments
- Koba Properties
- Mastercraft Homes
- Meadows Realty
- Newport Custom Estates
- NorthWest College
- Nova Homes
- Richland Communities
- RSI
- SC Communities
- Texaco Oil
- Warmington Group
- Waterpointe Development Companies
- Waterstone Environmental
- Watt Commercial
- WestCal Properties
- Williams Homes
- Young Homes of America
- YMCA
Along with private sector clients and projects, LDC has worked extensively with and for various public agencies to provide professional services, some of those agencies including:
- City of Anaheim
- City of Baldwin Park
- City of Carson
- City of Costa Mesa
- City of Downey
- City of Hidden Hills
- City of Industry
- City of Lake Elsinore
- City of Pico Rivera
- City of Santa Ana
- City of Santa Fe Springs
- City of Sierra Madre
- City of South El Monte
- City of West Covina
- County of Orange