The mark consists of "OES" stands for "Olson Engineering Solutions". The "O" is a benzene ring..
OLSON ENGINEERING SOLUTIONS
The color(s) Turquoise: (RGB 0, 178, 157) (HEX #00B29D)
Black: (RGB 0, 0, 0) (HEX #000000) is/are claimed as a feature of the mark.