Vertical Communications, Inc. is a corporation that specialized in premises-based private branch exchanges, i.e., business telephone systems.

[5] Stylus Innovation, noted for its Barcode-based remote shopping product, was founded in 1991 by Krisztina 'Z' Holly, Mike Cassidy and John Barrus.

Stylus Innovation came to public attention by winning the Grand-Prize in the 1991 MIT $100K Entrepreneurship Competition.

The latter, which subsequently was acquired by PC Micro, continued to market and maintain LANtastic.

Version 8.01, released in 2006, can network PCs running MS-DOS (also PC DOS) 5.0 or later and Windows 3.x up to 7.