Zero Trust for the plant floor. Built to industrial grade.
One 1U appliance in your rack, in front of the machines that cannot be patched or taken offline. It decides who reaches what, records every session, and keeps working whether or not the site has internet.
Access control in front of every machine
Every connection to a PLC, HMI or SCADA server is checked against a named person and a named asset. The machines themselves are never touched.
One console for the whole site
Cells, lines and the office network under one policy, managed from one screen. If you add a second site later it works the same way.
Automated OT compliance
CMMC, NIS2 and IEC 62443 evidence produced by running the system rather than by a separate project: access records, the permission matrix per zone, and a change history you export when an auditor asks.
Built for a working plant. Not a data centre.
It does everything Access Gate Essential does: asset discovery, secure remote access, protection for equipment that cannot be patched. This is what the bigger appliance adds on a site that runs around the clock.
Hardware that survives the floor
Industrial-rated components, redundant power, and a hardware bypass. Rated for continuous duty in a warm cabinet, because the line does not stop for a reboot.
Sized for the whole site
Port density and inspection headroom for a large plant with many cells and zones, not a single line. One appliance in the rack instead of a box per area.
In the path, without slowing the line
Segmentation and encryption run in hardware, so traffic passes at wire speed. The cyclic traffic between a PLC and its I/O never crosses the appliance at all.
Goes in without rewiring
No re-cabling, no re-addressing, no VLAN redesign. It sits alongside the network you already have, so there is no outage window to negotiate with production.
Nothing leaves the site
Policies, logs and session recordings stay on the appliance. No vendor cloud sits in the access path, so it runs in air-gapped and restricted environments without an exception.
Secured by design. Adopted by default.
Security is the technical win. The organizational win is giving operations services they actually want, so teams stop routing around you.
The easier path becomes the secure one. That's how security sticks.
Trusted by manufacturers and critical industries.
to deploy compliance for on-premise application in restricted on-premise environments.
Trusted by leading companies
Access Gate Performance.
Tailored to your infrastructure. Pricing based on deployment scale, site count, and throughput requirements.
Volume and multi-year discounts available.
Enterprise Hardware & Software
The appliance, Trout CyberOS, enforcement in hardware, overlay networking and the management console. All of it runs on site.
Premium Support
A direct line to Trout engineers, or a vetted local partner, for the install and for tuning as the plant changes.
“The Trout Access Gate gave us a clear path to CMMC compliance without disrupting our manufacturing operations.”
Ready to get started?
Talk to our team to see how the Trout Access Gate fits your environment.
Common Questions About Access Gate Performance.
Added latency on a brokered session. The control loop does not cross the appliance at all.
A 1U rack appliance on server-grade hardware, with redundant power and a hardware bypass. It is rated for continuous duty in a plant cabinet, not just a clean data centre.
CyberOS is the hardened operating system the appliance runs. It is set up for security enforcement rather than general use: a hardened kernel, a verified boot chain, and none of the extra services a general-purpose install would carry.
Yes. Policies, logs, recordings and management all live on the appliance. Nothing calls home for access to work, so it runs in air-gapped and restricted environments without needing an exception.
It sits alongside the network you already have rather than replacing it. Devices keep their IP addresses, the cabling does not change, and the appliance takes over only the paths you point at it. That is why it goes in without an outage window.
NIS2, IEC 62443 and CMMC at the same time. The evidence is a by-product of running it: access records, the permission matrix per zone, and a change history, exported when someone asks for them.
No. Segmentation and encryption run in hardware at wire speed, and the cyclic traffic between a PLC and its I/O stays on the underlay, so the control loop is never in the path.