The five major studios produced the greater number of serials.
The other two major studios are Mascot Pictures, which later merged into Republic, and Pathé Exchange, which ceased serial production before the advent of sound.
These studios were the main producers of serials.
Note: Mascot later became part of Republic (see below) Note: All of Pathé Exchange's serials were Silent Universal produced more serials (137) than any other company.
28 Northern These studios produced only small numbers of serials.