Unix
Theo de Raadt
Computers, Software, Operating Systems, Unix - Theo de Raadt. OpenBSD founder Theo de Raadt's domain, Theo's.
https://theos.com/
Iron Systems, Inc. - Rackmount Servers, Storage, and High Performance Computing
Computers, Software, Operating Systems, Unix - High performance rack mounted Ecommerce equipment. System solutions for the large sophisticated corporate high end market delivering custom high performance equipment with integrated operating system software and assorted server applications supported by renown technical staff.
https://www.ironsystems.com/