Company logo KLES stands for Korea Leading Engineering System.

The design prototype concept was developed with the theme 'Comprehensive Research and Engineering Specialized Company for Power Plant Facilities.' To highlight the ongoing research attitudes of KLES members and their social responsibilities as professionals, a solid logotype has been created. The capital 'L' is accentuated with an orange color, serving as a focal point, while the final part of the letter is separated and positioned at the end of the entire logo, symbolizing the perpetual enthusiasm for research and the firm promise to its sustainability.

A color range of K0~K100 can be applicable depending on the logotype in combination with background color:

BLACK C0 M0 Y0 K90

ORANGE C0 M81 Y94 K0

GREY C0 M0 Y0 K50