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CRA Compliant Firmware Development for Connected Products

The EU Cyber Resilience Act is already in force, with a 24 hour exploited-vulnerability reporting rule live since 11 September 2026. We build the secure boot, secure OTA, and SBOM practices your firmware needs to meet it, not just a promise.

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Firmware built for a regulation that is already live

  • Secure boot and signed firmware images, so an unauthorized build cannot run on your hardware
  • Secure over-the-air update infrastructure, built to be patchable the moment a vulnerability is found
  • A generated Software Bill of Materials (SBOM), in CycloneDX or SPDX format, for every firmware release
  • Vulnerability handling built into the development process itself, not bolted on before an audit
  • A real office in Ludwigsburg, Germany, for a face-to-face point of contact on EU compliance questions
  • The same team that writes the firmware also owns the mechanical and PCB design around it, so security is not an isolated afterthought
CRA compliant firmware and PCB development at CADLETE Designs

Our CRA Readiness Process

The same disciplined process whether this is your first connected product or a firmware update to an existing one.

01

Architecture & Threat Review

Your product architecture is reviewed for secure boot, update, and communication requirements before firmware development starts.

02

Secure Firmware Development

Firmware is written with signed images and a secure boot chain built in from the first commit, not added at the end.

03

SBOM Generation

A Software Bill of Materials is generated and versioned alongside every firmware release, in CycloneDX or SPDX format.

04

OTA Update Infrastructure

A secure over-the-air update path is built so a discovered vulnerability can be patched in the field, not just documented.

05

Documentation & Handover

Architecture, SBOM, and vulnerability-handling documentation are handed over in a form your compliance team can actually use.

Where CRA Compliant Firmware Applies

The CRA applies to any product with digital elements sold into the EU. The firmware discipline is the same across categories.

Consumer IoT Devices

Connected home and lifestyle products with a network-facing attack surface.

Industrial Automation

Embedded controllers and monitoring hardware sold into EU industrial buyers.

Wearables & Health Tech

Battery powered connected devices with firmware that must stay patchable in the field.

Smart Infrastructure

Connected sensors and gateways deployed at scale across a facility or fleet.

Security & Access Systems

Products where a firmware compromise has real physical-security consequences.

Medical & Diagnostic Devices

Connected devices where secure update infrastructure is already an expectation, not new.

What Founders Ask About the EU Cyber Resilience Act

Is the Cyber Resilience Act actually in force yet, or is this still a future deadline?

The CRA's 24 hour exploited-vulnerability reporting obligation is already in force, live since 11 September 2026. Full binding enforcement across the rest of the regulation lands December 2027, with penalties running up to €15M or 2.5% of global turnover for non-compliance.

Does the CRA actually apply to firmware, or just software sold as a standalone product?

It applies to any product with digital elements sold into the EU, which explicitly includes embedded firmware. Secure boot, secure update mechanisms, and a Software Bill of Materials are named requirements, not implied ones.

What is an SBOM and why does our firmware need one?

A Software Bill of Materials is a structured list of every software and firmware component in your product, in a standard format like CycloneDX or SPDX. The CRA requires one so a known vulnerability in a component can be traced to every affected product quickly.

Does CADLETE issue CRA compliance certification?

No. We build the firmware engineering practices the CRA requires, secure boot, secure OTA infrastructure, SBOM generation, and vulnerability handling built into the development process, and hand over documentation your compliance or legal team can use. Formal regulatory certification is a legal process, not something an engineering partner issues.

We're a US company, does the CRA apply to us?

If your product is sold into the EU market, the CRA applies regardless of where your company is headquartered. This is common enough that we build the same secure boot, OTA, and SBOM practices into firmware for US clients shipping into the EU as we do for our German clients directly.

How does communication work if your engineering team is based in India?

Our office in Ludwigsburg gives you a real point of contact in Germany for EU compliance questions, in addition to our firmware and PCB engineering team in India.

How do you protect our source code and firmware IP, given the CRA is itself about supply chain security?

A non disclosure agreement and any written IP paperwork your project needs are signed before any code or design file is shared, and you own the source code and firmware IP outright on delivery. All development is done in-house by our own engineers, nothing is subcontracted to China or a third-country vendor, so your code never leaves our facility or passes through any other party, the same supply chain discipline the CRA itself is written to enforce.

Trusted By Product Companies Worldwide

Verified reviews from clients in USA, UK, Germany, Australia, Canada and more.

Javier Campos
14 October 2025
Google

Very good professional, exhaustive and detailed work with great follow-up on the proposed revisions and always willing to make the requested modifications. In addition, a proactive attitude to follow the steps of the project. If you have the opportunity, I recommend working with him, you won't be disappointed.

Verified Google Review
Bells Leonberger
5 October 2025
Google

Working with Cadlete Designs has been a real pleasure. They helped with so many design aspects I hadn't considered and offered many suggestions that I would have never thought of. Professional, prompt, and always willing to go the extra mile. I was extremely lucky to have found them! (Patent Pending)

Verified Google Review
Abdul Haseeb
17 September 2025
Google

Great experience working with Cadlete Designs team, they were professional with quick turnaround times and providing detailed explanations with each iteration. Will work with them again in the future.

Verified Google Review
Fernando Rodriguez
9 September 2025
Google

Working with Smit and the Cadlete Designs team has been amazing. They are extremely diligent, professional, and always willing to go the extra mile. Every detail of our project was handled with care and creativity. Highly recommended!

Verified Google Review
Doughty Build
11 July 2025
Google

These guys are simply the best. They are professional and on time with the orders and take great care in understanding what it is you want done. They offer revisions on the product if it is off and they are so pleasant to work with, I would 10/10 recommend them to anybody looking for designs drawn up.

Verified Google Review
Will YIM
11 July 2025
Google

I had a great experience working with CADLETE Designs. Smit was professional, responsive, and very patient throughout the process. The 3D model was beautifully done and exactly what I needed. Highly recommend their team for any custom design work, they are talented and reliable!

Verified Google Review
Melvin Mathew
2 June 2025
Google

I've worked with CADLETE Design for several years, and every project has been exceptional. Their meticulous attention to detail, quick turnaround times, and consistently professional, helpful, and kind service make them a standout partner.

Verified Google Review
Okan Anter
26 May 2025
Google

I have been getting a ton of design work done. Engineered specs, renderings for the past 3 years with them. The best thing about them is that they come back quickly and with great work quality. I really appreciate all the work they done for us and continue to do.

Verified Google Review
Aaron Ellison
26 May 2025
Google

Cadlete Designs staff are very professional and will go above and beyond to build and deliver a great product! They built my custom mechanics creeper board for my company and I have nothing but the utmost respect for this company. Special recognition to Smit!

Verified Google Review
Steven Smith
26 May 2025
Google

I've been collaborating with CADLETE Design for several years, and it's been a truly great experience. Their attention to the specific details of each project is outstanding. Deliveries are always fast, and they are consistently helpful, professional, and kind.

Verified Google Review
Javier Campos
14 October 2025
Google

Very good professional, exhaustive and detailed work with great follow-up on the proposed revisions and always willing to make the requested modifications. In addition, a proactive attitude to follow the steps of the project. If you have the opportunity, I recommend working with him, you won't be disappointed.

Verified Google Review
Bells Leonberger
5 October 2025
Google

Working with Cadlete Designs has been a real pleasure. They helped with so many design aspects I hadn't considered and offered many suggestions that I would have never thought of. Professional, prompt, and always willing to go the extra mile. I was extremely lucky to have found them! (Patent Pending)

Verified Google Review
Abdul Haseeb
17 September 2025
Google

Great experience working with Cadlete Designs team, they were professional with quick turnaround times and providing detailed explanations with each iteration. Will work with them again in the future.

Verified Google Review
Fernando Rodriguez
9 September 2025
Google

Working with Smit and the Cadlete Designs team has been amazing. They are extremely diligent, professional, and always willing to go the extra mile. Every detail of our project was handled with care and creativity. Highly recommended!

Verified Google Review
Doughty Build
11 July 2025
Google

These guys are simply the best. They are professional and on time with the orders and take great care in understanding what it is you want done. They offer revisions on the product if it is off and they are so pleasant to work with, I would 10/10 recommend them to anybody looking for designs drawn up.

Verified Google Review
Will YIM
11 July 2025
Google

I had a great experience working with CADLETE Designs. Smit was professional, responsive, and very patient throughout the process. The 3D model was beautifully done and exactly what I needed. Highly recommend their team for any custom design work, they are talented and reliable!

Verified Google Review
Melvin Mathew
2 June 2025
Google

I've worked with CADLETE Design for several years, and every project has been exceptional. Their meticulous attention to detail, quick turnaround times, and consistently professional, helpful, and kind service make them a standout partner.

Verified Google Review
Okan Anter
26 May 2025
Google

I have been getting a ton of design work done. Engineered specs, renderings for the past 3 years with them. The best thing about them is that they come back quickly and with great work quality. I really appreciate all the work they done for us and continue to do.

Verified Google Review
Aaron Ellison
26 May 2025
Google

Cadlete Designs staff are very professional and will go above and beyond to build and deliver a great product! They built my custom mechanics creeper board for my company and I have nothing but the utmost respect for this company. Special recognition to Smit!

Verified Google Review
Steven Smith
26 May 2025
Google

I've been collaborating with CADLETE Design for several years, and it's been a truly great experience. Their attention to the specific details of each project is outstanding. Deliveries are always fast, and they are consistently helpful, professional, and kind.

Verified Google Review

Real Firmware, Built for Products Already in the Field

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