Although they ceased business in 1991, owner Mark Simonsen permitted the Beagle Bros name and logo to be included on the 30th anniversary reboot of I. O.

Beagle Bros was founded in 1980 by Bert Kersey and expanded over the years to include a wide variety of staff members, programmers, and designers.

[1] Beagle Bros programmer Alan Bird later devised an API for creating AppleWorks add-ons, which they dubbed TimeOut.

Many former employees have continued to be involved in the software industry, such as Joe Holt who co-authored iMovie, and Alan Bird who worked on Eudora and the OneClick shortcut utility for Macintosh.

Randy Brandt created Online Army Knife, an award-winning Macintosh spell checker, and continued publishing AppleWorks products through his JEM Software spin-off.