PreSonus is an American manufacturer of audio and digital audio workstation (DAW) equipment and software, used to create, record, mix, and master music and other audio. 
It was founded in 1995, in Baton Rouge, by Louisiana State University engineering graduates Jim Odom and Brian Smith.
“From Jim Odom on down, our ranks are filled with musicians and sound engineers. We make products we want to use, and we gig and record with them constantly. That’s why our groundbreaking StudioLive™ AI Active Integration™ mixers and StudioLive AI Active Integration loudspeakers, Studio One® digital audio workstation, Sceptre™ and Eris™ studio monitors, USB and FireWire audio interfaces, and myriad other products sound great and are easy to use, while delivering the features musicians and sound engineers really need—and some very cool features you didn’t realize you needed until we delivered them.”