
About Us

Photo taken July 2025 - PEI team celebrating 35 year anniversary!
Located in Olathe, Johnson County, Kansas, Phelps Engineering Inc. (PEI) is a full service civil engineering, landscape architecture and land surveying firm. PEI provides professional services in Kansas and Missouri with extensive experience in both land development and public works infrastructure projects.
PEI provides a single-source solution to solve the challenges of your project. From concept to completion, PEI's team of land surveyors, civil engineers, landscape architects, and construction observers are ready to rise to the challenges of your project. PEI expertly manages and coordinates a broad range of engineering activities. Our projects reflect our ability to balance construction requirements with a client’s desire to preserve existing natural resources.
Since 1990, Phelps Engineering (PEI) has earned a premier reputation for turning our client’s dreams into successful projects.
Facts
-
45+ Employees
-
World Headquarters; Olathe, KS
-
Founded in 1990
-
Licensed Surveyors in KS, MO
-
Licensed Engineers in KS, MO
-
Licensed Landscape Architects in KS, MO


