IoT Contract Manufacturing in Ireland
RTR Electronics provides IoT contract manufacturing in Ireland, building the connected devices, sensors and edge electronics that power smart-home products, industrial IoT systems and connected health applications. Our ISO 9001:2015 facility in Limerick handles every stage from prototype PCB assembly to box build, with the tight integration of sensors, connectivity modules and microcontrollers that IoT products demand.
Custom PCB Assembly : Precise, high-quality PCB assembly designed to fit within compact IoT devices without compromising performance.
Advanced Testing : Comprehensive testing procedures to ensure connectivity, resilience, and security, meeting industry standards for IoT devices.
Prototyping & Iteration : Flexible prototyping and iterative development to meet the fast-paced demands of the IoT market.
Quality Assurance:Rigorous quality controls and certification support to ensure your IoT product is reliable, safe, and ready for deployment.

IoT Manufacturing Capabilities
Our IoT contract manufacturing line is built around the things connected products actually need:
- Low-power PCB assembly for battery and energy-harvesting designs
- RF and wireless module integration — BLE, Wi-Fi, LoRa and cellular
- Sensor sub-assemblies and antenna placement
- In-line firmware flashing during assembly
- Low- to medium-volume production
- Full traceability on every build
From Prototype to Connected Product
A lot of IoT work starts as a startup’s first prototype. We take that early board through design-for-manufacture feedback, hardware design support and pilot assembly, then scale into repeatable production as your volumes grow. Because prototype and production happen in the same Limerick facility, your IoT contract manufacturing partner stays the same as you move from ten units to ten thousand.
Box Build and Final Integration
Most connected products are more than a bare board. Our box build service integrates your PCB, enclosure, sensors and connectivity into a finished unit, then functionally tests it so it leaves us working. That makes RTR a single IoT contract manufacturing partner from the first prototype through to a packaged product ready for your customers.
IoT Applications We Support
We build for the full spread of connected products, from consumer smart-home devices and wearables to industrial IoT gateways, asset trackers and connected-health monitors. Each market has its own demands — battery life and size for wearables, ruggedness and long-range connectivity for industrial sensors, traceability and documentation for anything medical — and our engineers tune the build around them. Whether you are a startup shipping your first batch or an OEM scaling a proven design, you get the same Limerick team, the same quality system and the same single point of contact. That continuity is the real advantage of doing your IoT contract manufacturing under one roof: design feedback, assembly and testing all talk to each other, so problems are caught early and your product reaches market faster.
Frequently Asked Questions
Can RTR integrate wireless modules and antennas?
Yes. We integrate BLE, Wi-Fi, LoRa and cellular modules, and place and tune antennas as part of the assembly.
Do you flash firmware during production?
Yes. We can flash firmware in-line during assembly, so boards arrive programmed and ready to test.
What IoT volumes do you support?
From prototype batches for startups through to medium-volume production for established OEMs.
Can you handle sensor calibration as part of box build?
Yes. Sensor calibration and functional test can be built into your box build and test plan.
Planning a connected product? Our IoT contract manufacturing team in Limerick can take it from prototype to production. Get in touch to talk it through.