Professional engineers Thomas Schubert and James Frazell founded Triad Associates, Inc. in 1975 to help communities address their infrastructure needs, predominately in water and wastewater design. As our civil engineering firm grew, we added services such as architecture and landscape design to better serve our municipal clients.

Contact us at (317) 377-5230 to discuss how our Indianapolis-based experts can assist you!

Triad Associates’ headquarters is on the grounds of Fort Benjamin Harrison in Indianapolis, and we also have a satellite office in Goshen, Indiana. Our central location allows us to work on projects throughout Indiana, Illinois, Ohio, and Michigan, providing the following services:

  • Architectural design and engineering
  • Wastewater engineering
  • Water supply engineering
  • Stormwater engineering
  • Transportation engineering
  • Park design
  • Streetscape design
  • Municipal building design
  • Multi-family housing design
  • And more
About Triad Associates, Inc.

Water, Wastewater & Stormwater Design

Our professionals have designed a variety of projects for cities and towns of all sizes. We begin every project by listening to the client’s needs and goals, and then we develop engineering solutions that are a good fit for the community — and the project budget.


Triad Associates branched out into architecture to ensure that we were meeting all of our clients’ needs. Since then, our projects have included designing a variety of public facilities and renovating historic buildings for multi-family housing reuse.

Building Partnerships

Our firm’s mission has always been to develop long-lasting relationships with communities based on trust and service. We work with clients to brainstorm solutions, get them down on paper, finalize designs, and see them through to completion. That commitment gives our clients peace of mind, since they know we’re looking out for their long-term interests.

We won’t make short-sighted decisions that may not serve them, because we hope to still be active in their communities for decades to come.

As part of our commitment to our profession, we also have active memberships in several trade organizations, helping to further our civil engineering expertise and allowing our professionals to mentor the next generation of leaders. And we are always looking for talented additions to our team!

Triad Associates, Inc. in Indianapolis

Call the friendly staff in our Indianapolis office at (317) 377-5230 to discover how Triad Associates can partner with you to address your city or town’s infrastructure needs.