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About Us

Located in Olathe, Kansas, PEI (Phelps Engineering Inc.) is a full service civil engineering 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 project managers, surveyors, civil engineers, and inspectors are ready to rise to the challenges of your project at a moment's notice.


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.



  • 40+ Employees

  • World Headquarters; Olathe, KS

  • Founded in 1990

  • Licensed Surveyors in KS, MO

  • Licensed Engineers in AR, IA, KS, MO,OK,NE


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