About Company
Engineering Excellence for a Changing World
ADG stands as a trusted leader in mechanical, electrical, commissioning, energy, environmental, and LEED engineering services. Since 1981, we have delivered precision solutions for mission-critical facilities, shaping infrastructure that is efficient, sustainable, and built for long-term
Partner Awaits
Collaborating with clients to deliver reliable, high-performance building systems.
Global Experts
Engineering innovative solutions that meet the highest industry standards worldwide.
Projects Completed
Client Partnerships
Skilled Professionals
Industry Awards
OUR EXPERIENCE
Shaping the Future of Infrastructure
From hospitals to research facilities, educational and sports arenas, ADG delivers innovative mechanical, electrical, and sustainable engineering solutions that ensure reliability, efficiency, and long-term value.
Expert Member
Expert Design Engineers
Craig Campbell, PE, LEED AP
President
Mark Neely
Alexandria Branch Manager
David Stelly, PE
Electrical Department Manager
Trey Alexander, PE
Lake Charles Branch Manager
Roland LeLeux, HFDP
Mechanical Department Manager
Rhonda deJesus, CPA
Controller
Philosophy
Precision Engineering Since 1981
Since 1981, ADG has built a nationally recognized reputation for delivering precision engineering that supports some of the most innovative architectural designs across the country. With projects ranging from healthcare centers and courthouses to airports, resorts, and world-class arenas, our team continues to earn client trust through reliable solutions and long-term partnerships. Clients turn to ADG for our proven expertise, supported by more than 400 years of combined engineering experience and a steadfast commitment to quality assurance and quality control.
- Building Trust Through Long-Term Relationships
- Delivering Excellence Across Diverse Projects
- More Than 400 Years of Combined Experience
- Commitment to Earned Confidence Every Day
