Estonian Engineering for Industrial IoT
We design and manufacture reliable industrial IoT controllers in Tallinn, Estonia — hardware you can trust in the field.
Built in Estonia, Deployed Across Europe
FoxIoT designs and manufactures industrial IoT controllers in Tallinn, Estonia. We started because we needed reliable, affordable hardware for real industrial projects — and what was available was either too expensive, too fragile, or locked into proprietary ecosystems. So we built our own.
Over 3,000 controllers have shipped to customers across more than 10 European countries. Our devices run in solar parks, BESS installations, building automation systems, and industrial facilities — places where reliability is not optional and downtime is expensive. Every unit is tested before it leaves our hands.
We handle the full product lifecycle in-house: hardware design, firmware development, manufacturing with certified Estonian partners, system testing, and ongoing support. When something needs fixing, you talk to the engineer who designed it — not a support ticket queue.
By the Numbers
5,000+
Controllers deployed across Europe.
5+
Years building industrial-grade hardware.
700+
Units shipped per year, growing.
10+
Countries with active deployments.
Companies That Choose FoxIoT
System integrators, OEMs, and energy companies across Europe rely on FoxIoT controllers in production systems:
Fusebox
Energy-sector deployments.
Agatark
Industrial automation projects.
NV System
Systems integration partner.
Soleron
Solar / energy installations.
Estonian Engineering, End to End
From PCB design to final test, the full supply chain is under our control.
Designed in Estonia
Hardware design and firmware development done in Tallinn. No outsourced R&D, no black-box modules — we know our products from silicon to software.
Assembled by Certified Partners
Assembled by certified Estonian manufacturing partners with industrial-grade quality processes. Every batch is tested against our own test fixtures before shipment.
Full Supply Chain Control
We source components from qualified suppliers and maintain visibility across the full supply chain. No surprise shortages, no counterfeit risks, predictable lead times.
How We Work
Three principles that guide every product decision.
Reliability First
Industrial-grade design with an operating range of −40 to +55 °C. Built to run 24/7 in control panels, field cabinets, and outdoor enclosures. We don't ship hardware that can't handle the environment.
Direct Support
When you need help, you talk to the engineer who designed the hardware. No offshore support, no script-reading. We understand your integration challenge because we've solved similar ones ourselves.
Honest Engineering
We publish real specs, tested in real conditions. No marketing numbers. If a spec matters to your project, we'll tell you whether our hardware meets it — and if it doesn't, we'll tell you that too.
Want to Work With Us?
Tell us about your project — we're happy to discuss hardware requirements, custom builds, or volume pricing.