Trilon is founded on growth partnerships with successful firms.

Our group operates as a ‘family of companies’. Under this model, our partners and specialty firms have a high degree of autonomy and will have their own personality.

Like any harmonious family, we have a shared vision, shared values, and share our services to better support our clients. We make decisions in the best interest of the entire family and support each other to grow in both good and challenging times.

Our family comprises a mix of market leaders in Transportation, Water, Utilities, Environment and Community Infrastructure. We also have leaders in key geographic regions and nation-wide specialties.

Interested in Joining Trilon Group?

Regardless of whether you are just interested in better understanding the Trilon approach or have a desire to more formally discuss the potential to join the family we would welcome the opportunity to speak with you.

Please reach out to:


Founded in 1983, CME Associates is one of New Jersey’s leading integrated engineering firms. CME combines advanced Civil, Environmental, Geotechnical, & Structural Engineering services along with Surveying, Planning, & Landscape Architecture in one unique practice across 6 offices. From initial concept through construction, CME serves a broad range of government and private clients with world-class design & unprecedented local knowledge.


Founded in 1987, Sigma has a 35-year history of delivering consulting solutions throughout the Gulf Coast. Named one of the best places to work in Baton Rouge annually since 2014, Sigma’s full-service engineering and surveying expertise spans the transportation, water resources, coastal, and program management markets. 

Sigma Consulting Group

Founded in 1976, Waggoner has a proud history of delivering infrastructure solutions, with a focus on the Water market. They share a common vision with Trilon in that they do more than plan and design infrastructure – they help transform communities. Their expertise spans Water, Utilities, Municipal Infrastructure and Disaster Recovery.


Founded in 1985 in Arizona, Wilson provides infrastructure solutions that span the water, wastewater, reclaimed water, and electrical infrastructure markets. 

Wilson Engineers


Alta was founded in 1996 when cities and communities were calling for safer streets for people walking and bicycling as the non-motorized transportation movement developed in the United States. Alta pioneered the field of active transportation, evolving their planning and design work into a visionary global practice that empowers people to live active, healthy lives and gets them to where they need to go. Creating active, healthy communities — Alta Planning + Design (

Alta Planning + Design

Founded in 1992, RKA is an award-winning transportation consulting company. RKA is headquartered in Raleigh, NC with offices in Charlotte, Greensboro, Columbia (SC), Charleston (SC), and Glen Allen (VA). RKA specializes in working with clients to make transportation accessible and safe for everyone while supporting long-term community growth and improving the local quality of life.  


Founded in 1977, DRMP has delivered infrastructure solutions across Florida and the Southeastern United States with multi-disciplinary civil engineering expertise that spans Transportation, Civil, Federal, and Utility markets.  DRMP has offices throughout Florida, Georgia, and North Carolina.



Founded in 2003, ESI Consultants provides a range of engineering and architectural consulting services, primarily to the Transportation market, and has built and advanced a high quality, service orientated reputation by providing professional service with a practical approach.  ESI’s goal is to build enduring relationships with its business partners and clients by provided cost-effective and innovative solutions.

ESI Consultants Ltd.

Founded in 2004, Gonzalez has a been recognized as a leading provider of consulting services to public and private entities throughout the Midwest. Gonzalez Companies is a partner-managed firm; with a focus on engineering and construction management solutions that provide clients with practical, buildable, and maintainable results. Gonzalez ensures clients receive comprehensive attention and solutions that are second-to-none. 

Gonzalez Companies

Founded in 1955, The Mannik & Smith Group, Inc. (MSG) has a proud 65+ year history of delivering consulting solutions to governmental agencies, municipalities, and private entities across North America. MSG is a premier multi-disciplined consulting firm, serving an exclusive collection of the some of the best and fastest growing private entities, municipalities, and governmental agencies across the Americas.

The Mannik & Smith Group

Community Infrastructure

Founded in 1981, CPH is a full-service Architecture and Engineering design firm serving Commercial, State, and Local Clients. CPH is headquartered near Orlando, Florida and currently employs professionals across 12 office locations.