Which ferry companies offer electronic tickets?

These are the companies currently offering electronic tickets. Keep in mind though that their web check-in processes might differ.

• Aegean Speed Lines
• Blue Star Ferries
• Fast Ferries
• Golden Star Ferries
• Africa Morocco Link
• Minoan Lines
• Sea Jets
• Alpha Lines
• Saronic Ferries
• ANES Ferries
• Goutos Lines