Endian 4i

Industrial security gateway for OT networks, available as ruggedized hardware or as software/virtual deployment. Endian 4i is a line of security gateways designed specifically for industrial OT environments, combining robust hardware with secure remote access. Deploy Endian 4i on your own hardware or as a virtual machine for a flexible and scalable security solution. Endian's 4i Security Gateway is designed for these environments, featuring a ruggedised chassis with DIN rail support, extended temperature range (-20 to +60°) and industrial power supply. It is available as a hardware appliance and a virtual appliance.

Current Version

6.9

Product Page

endian.com/products/4i

Market

Critical InfrastructureOT / ICS

Licence

Paid

Price

Quote

Record Created

2026-09-19

Last Updated

2026-10-10

Endian is an Italian company from Appiano, in South Tyrol, founded in 2003, that builds its firewalls on open-source foundations and publishes a free community edition alongside the commercial products — the same model several European network vendors in this index use. Endian UTM is the general-purpose appliance, available as hardware, software or a virtual machine, covering firewalling, VPN, web and mail filtering and intrusion prevention. Endian 4i is the industrial line, built for factory and utility networks where the requirement is secure remote access to machinery and segmentation between plant and office networks rather than protecting office PCs. Its industrial products are the more distinctive half of the business. As a network vendor it is not assessed by the malware laboratories whose results fill much of this index. Vendor page →

Website

endian.com

Country

🇮🇹Italy

Headquarters

🇮🇹Bolzano, Italy

Year Established

2003

Customers

4,000 organisations

Users

50K devices protected

Revenue

$10.0M (2026)