ORLANDO, Fla. – DRMP, Inc. (DRMP) has aligned with Rinker Design Associates, LLC (RDA), a fellow Trilon Group partner firm, as part of a strategic growth initiative that strengthens both organizations' ability to serve clients across the Mid-Atlantic and Southeast. The move became effective June 26, 2026.
This strategic alignment strengthens the connection between two respected infrastructure consulting firms that share a commitment to client service, technical excellence, and sustainable growth. RDA will continue to operate under its established brand, leadership, and organizational structure as Rinker Design Associates (a DRMP company).
By building on an already strong partnership, DRMP and RDA are creating new opportunities to expand their reach, complement one another's services, and deliver greater value to clients across the Mid-Atlantic.
“This strategic alignment creates exciting opportunities to expand our collective reach and leverage the complementary strengths of both firms,” DRMP President and CEO Glenn Lusink, PSM, said. “By bringing together DRMP's broad infrastructure capabilities with RDA's strong Mid-Atlantic presence and expertise, we are better positioned to pursue larger, more complex projects, including design-build opportunities, and deliver even greater value to our clients.”
Together, DRMP and RDA will execute a growth strategy designed to strengthen service capabilities, expand market opportunities, and better serve clients and communities across the region. This milestone reflects DRMP's ongoing commitment to strategic growth and thoughtful partnerships that enhance technical expertise, geographic reach, and client service. By aligning with organizations that share its values and commitment to excellence, DRMP continues to build a stronger platform for delivering innovative infrastructure solutions that improve mobility, support economic development, and enhance quality of life.
About DRMP
Since 1977, DRMP has earned a reputation as a trusted multidisciplinary engineering firm that approaches challenges differently. What began as a small Florida-based firm has grown into a Southeastern powerhouse with over 700 employees across 23 offices. We partner with clients to deliver smart, sustainable infrastructure that helps communities thrive. Ranked among Engineering News-Record’s Top 500 Design Firms in the United States, DRMP is known for solving complex challenges through technical expertise, innovative thinking, and collaboration. We value connection, creativity, and a welcoming, engaging culture that empowers employees to grow their careers. As we continue to expand, we remain committed to the principles that have guided us from the start.
About Rinker Design Associates (RDA)
Rinker Design Associates, LLC (RDA) is a Virginia-based civil engineering firm with 250+ employees on staff, and locations in Manassas (two offices), Fredericksburg, Richmond, Virginia Beach, Waynesboro, Abingdon, Galax, and Big Stone Gap. A highly dynamic and diverse company, RDA has been providing professional services throughout the Commonwealth of Virginia for over 44 years. Since our establishment, we have built a solid reputation for providing conscientious and reliable service to municipalities, governmental agencies, and private industries throughout the Mid-Atlantic region.
About Trilon Group
Trilon is a family of leading infrastructure consulting firms across North America, united by a vision to build the next top 10 design firm. Founded in 2021, Trilon is one of the fastest-growing businesses in the infrastructure industry, partnering with established, growth-oriented firms that retain their local brands, leadership, and culture while benefiting from shared resources and strategic collaboration. Focused exclusively on infrastructure engineering and consulting, Trilon invests in partner firms and strategic acquisitions that expand geographic reach, deepen technical expertise, and accelerate long-term growth. Today, Trilon’s network includes 14 partner firms and more than 6,000 employees nationwide, delivering innovative solutions that strengthen communities and advance critical infrastructure across the United States and Canada.
