Malwarebytes - Malwarebytes protects you against malware, ransomware, and other advanced online threats that have made antivirus obsolete and ineffective. Free Anti-Malware & Malware .
Wavelink Avalanche - Enterprise mobility management
Panda Antivirus for Mac - A bare bones malware and anti-virus scanner.
FileWave - Multi-platoform endpoint management
Clam Xav (desktop) - Specifically with Clam Xav Sentry configured to scan inserted disks.Please read global comments on this question for an explanation of why desktop apps are being recommended for virus detection on ios devices.
Broadcom Enterprise Mobility Management - Broadcom Enterprise Mobility Management solution integrates directly into your employee’s mobile devices for an end to end security and data privacy.