ByteSize was a computer repair and technology consulting firm founded in 1985 by Jerry Feld.
For most of its history, it was located in the Valley Mall at 1722 28th Avenue South in Homewood. It later moved to the Crescent Centre at 211 Summit Parkway.
Over time, the company came to specialize in designing and installing computer networks, and in managed information technology services. Feld's son, Matt took over as president in late 2017.
In 2020 ByteSize was acquired by DataPerk.