Q. In the technical writing I do it is common to reduce the full name of a company, after first mention, to a shorter version, usually dropping the Inc. or LLC or what have you. For example: “Johnson Associates, Inc. (Johnson), is the proponent of this project.” Is it correct to have a comma after the parenthesis?

A. Yes, as long as there is also a comma before Inc. Chicago also allows for dropping both commas (CMOS 6.44): Johnson Associates Inc. (Johnson) is the proponent of this project.