About us


Hrezo (re-zō)

Hrezo Engineering, Inc. was founded by Robert J. Hrezo, P.E., in 1984. Mr. Hrezo is a 1974 Mechanical Engineering graduate of Purdue University. Robert remains an active part of daily operations.

Hrezo Engineering, Inc. is licensed in the states of Indiana, Ohio, and Kentucky. We have applied our talents to the Greater Cincinnati area since opening our doors in 1987 when we moved into our current Greendale office. In 2003 we added surveying to our list of services upon hiring Paul Raney P.L.S. as our first Licensed Surveyor. Paul continues to manage our Surveying department. 

In 2013 we expanded to Madison, IN to better serve our client’s needs. We are continually seeking to diversify and grow our network of services.

Our extensive client list includes municipalities, industrial, religious organizations, educational facilities, commercial and residential developers, and non-profit organizations. In addition to our services already mentioned we have subsidiaries that also provide contract employment, pump sales and service, machining services, and a number of others. See our Additional Services page for a complete listing.



Hrezo Engineering is a long standing member of the American Council Engineering Companies (ACEC). ACEC was founded in 1959 as a functional section of the Indiana Society of Professional Engineers. Hrezo is the only ACEC member engineering firm located in all of southeast Indiana. Furthermore, our firm has been pre-qualified by ACEC in the following areas:

  • Architectural – Buildings, Interiors, Landscape
  • Structural and Civil Engineering
  • Construction Management / Construction Observation
  • Mechanical / Electrical / Plumbing
  • Highway / Streets
  • Hydraulics / Hydrology Supply Distribution / Treatment
  • Industrial
  • Land Surveying
  • Inspections
  • Site Development & Planning
  • Traffic Engineering Studies
  • Wastewater Supply Distribution / Treatment


We are proud to be a part of our community and we are continuously working on improving it through our dedication to excellence. Our team has impressive credentials and believes in working closely with our clients to achieve the highest results possible.