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Top PCB Assembly Manufacturers in Europe for IoT Products
When you’re designing and manufacturing IoT products—like Shelly’s smart thermostatic radiator valve head—the importance of finding the right PCB manufacturer can’t be overstated. The precision, scalability, and reliability of your PCB assembly can make or break your product. If you want your devices to perform at their best, you need a partner who can handle the demands of high-volume production and ensure flawless execution every time.
In this guide, we’ll take a close look at the best PCB manufacturers in Europe who specialize in producing high-performance PCBs for industries like IoT, automotive, and medical technology. Whether you’re looking for a fast prototype or ready to scale for mass production, we’ve got you covered.

Why Choosing the Right PCB Manufacturer Matters for IoT Products
IoT products require a high level of performance, connectivity, and reliability, all of which are heavily dependent on the quality of the PCB. For products like Shelly’s smart thermostatic radiator valves, which are part of a home automation system, you can’t afford to take risks with your PCB assembly. Here’s why choosing the right manufacturer is essential:
Precision in Design and Manufacturing
The demand for precision in IoT devices is non-negotiable. IoT devices often have tight form factors and complex circuitry, making the quality of the PCB absolutely crucial. Even a tiny error in the PCB design or assembly can lead to device malfunctions, connectivity issues, or even complete failure in the field. This is especially critical for smart home products, which need to perform flawlessly under various environmental conditions.
- Eurocircuits – PCB & PCBA Prototypes
- Description: Eurocircuits specializes in PCB prototyping, small series production, and fast, reliable PCB assembly services, making it ideal for IoT products and high-tech manufacturing.
Scalability and Volume Production
Once your prototype is ready and tested, you’ll likely need to move into mass production. The ability of your PCB manufacturer to seamlessly scale from small runs to large-volume production is vital. Whether you’re producing hundreds or millions of units, it’s essential that the manufacturer can maintain consistency in quality, all while meeting deadlines.
Expertise in Advanced PCB Technologies
Most IoT products require advanced PCB designs, like HDI PCBs (High-Density Interconnects) and flexible PCBs, to meet the complex needs of the device. For example, HDI PCBs allow for smaller, more intricate designs with more functionality packed into a compact space—ideal for IoT products. An experienced PCB manufacturer will know exactly how to tackle these advanced designs and deliver them on time.

Top PCB Assembly Manufacturers in Europe for IoT Products
Now, let’s dive into the top PCB manufacturers in Europe that specialize in IoT products. These manufacturers are well-equipped to handle the unique demands of high-volume production, precision, and innovation required by devices like Shelly’s smart thermostatic valves.
1. AT&S (Austria)
AT&S is a heavyweight in the European PCB manufacturing space. They specialize in multilayer and HDI PCBs, both of which are essential for creating high-performance IoT devices. What sets AT&S apart is their ability to handle both rapid prototyping and mass production without compromising on quality. Their precision and innovation make them an excellent choice for companies like Shelly, who need high-quality PCBs for smart home devices that must perform perfectly.
AT&S is also known for their reliability in manufacturing high-density boards that are often used in automotive and medical devices, making them a trusted partner for any high-performance product.
2. TTM Technologies (UK)
Based in the UK, TTM Technologies has more than 40 years of experience in the PCB industry. They are known for their flexible PCBs, multilayer boards, and high-frequency boards, which are essential for advanced IoT products. TTM’s expertise in high-speed data transfer and reliable connectivity makes them a great fit for devices that require constant communication, such as smart thermostats or connected appliances.
TTM Technologies also prides itself on quick turnaround times, which is crucial if you’re looking to bring your product to market quickly. Their ability to handle both small prototype runs and large-scale production ensures that they are capable of supporting your growth from early-stage development to full-scale manufacturing.
- Top PCB Manufacturers in Europe – MorePCB
- Description: This guide covers the top PCB manufacturers in Europe, including AT&S, TTM Technologies, and others, offering insights into their capabilities and production standards.
3. Schweizer Electronic (Germany)
For over 60 years, Schweizer Electronic has been providing high-reliability PCB assemblies to various industries, including automotive, telecommunications, and IoT. They specialize in HDI technology, making them an excellent choice for companies that require compact, high-performance PCBs.
Schweizer’s ability to deliver high-quality multi-layer PCBs is essential for IoT devices, where the need for space optimization is paramount. Their commitment to quality assurance and customer satisfaction makes them a reliable partner for companies like Shelly, who prioritize innovation and precision in their products.
4. AT&P (Austria)
AT&P stands out for their expertise in creating advanced PCBs for applications like automotive electronics, IoT, and medical devices. They are particularly skilled in managing high-volume production while maintaining the high-quality standards required for complex IoT products. AT&P is a great choice for companies that need fast prototyping and quick turnarounds, making them a go-to option for tech companies looking to scale their production quickly.
- Top 10 PCB Manufacturers in Europe – OURPCB
- Description: This article lists the top 10 PCB manufacturers in Europe, highlighting their advanced capabilities, quick-turn solutions, and commitment to sustainability.

How to Choose the Right PCB Manufacturer for Your IoT Product
Selecting the right PCB manufacturer is one of the most important decisions you’ll make when developing your IoT product. Here’s a checklist of things to look for when evaluating potential partners:
1. Precision and Reliability
For IoT products, precision is paramount. Look for manufacturers who have ISO 9001 certification and a proven track record of producing high-quality, reliable PCBs. This is especially important for products like Shelly’s smart thermostat, where a faulty PCB could result in product malfunctions, customer dissatisfaction, or even warranty claims.
2. Experience with IoT and Smart Devices
Look for PCB manufacturers that have experience with IoT devices, smart home products, and similar technologies. They should be familiar with the specific challenges that come with producing compact, highly functional, and cost-effective PCBs for these applications.
3. Expertise in Advanced PCB Technologies
If your IoT device has advanced requirements—like HDI or flexible PCBs—make sure the manufacturer has experience with these technologies. The ability to produce high-density interconnects or flexible boards is essential for many IoT products, especially those that need to be small but still deliver excellent performance.
4. Scalability
Once your product moves into production, it’s crucial that your PCB manufacturer can handle large-scale orders without compromising quality. Ask potential manufacturers about their capacity to scale, their lead times for high-volume runs, and their ability to deliver on time.
- LACROIX Electronics
- Description: LACROIX Electronics designs and manufactures embedded systems and industrial IoT solutions, making them a strong player in the IoT PCB assembly market.

Frequently Asked Questions
HDI (High-Density Interconnect) PCBs are crucial for IoT devices because they allow for more compact designs, enabling smaller, high-performance devices. These boards can pack more functionality into a smaller space without compromising on reliability or performance.
Ensure the PCB manufacturer follows rigorous quality control processes, such as electrical testing and thermal cycling, to check for reliability. Certifications like ISO 9001 and UL approvals can also help ensure that the manufacturer meets high standards.
Yes, many PCB manufacturers specialize in scaling from small prototype runs to mass production. Look for manufacturers with experience in both rapid prototyping and high-volume production, ensuring consistency and quality across all units.
The manufacturing time for IoT PCBs varies depending on complexity, but typically it takes 2-3 weeks for prototyping and up to 6-8 weeks for mass production. Be sure to confirm the lead times with your manufacturer to avoid delays.
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Conclusion
The success of your IoT product largely depends on the quality of the PCBs that power it. Whether you’re creating a smart thermostat like Shelly’s or any other IoT solution, it’s essential to partner with a PCB manufacturer who understands your needs and can provide the precision, scalability, and advanced technologies required to bring your vision to life.
Top PCB manufacturers in Europe, like AT&S, TTM Technologies, and Schweizer Electronic, are equipped to handle your high-volume production needs while maintaining the highest standards of quality. By partnering with the right PCB manufacturer, you’ll ensure that your IoT product performs reliably and efficiently in the real world.

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Additional Resources:
- How to Repair Circuit Boards: A Step-by-Step Beginner’s Guide
- Capacitor on Circuit Board: A Comprehensive Guide
- What Are PCB Conformal Coatings? Types, Benefits, and Applications Explained
- SMD Size Codes Explained: A Complete Guide to Understanding Surface-Mount Component Dimensions
- AC vs DC: Key Differences, Applications, and Advantages in Modern Electronics
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