Industrial Control Systems (ICS) Electronics & Technology Manufacturing: Insurance, Risk and Resilience (UK Guide)

Introduction: why ICS manufacturing is different

Industrial Control Systems sit at the heart of modern industry. Whether you manufacture PLC modules, HMIs, SCADA components, sensors, gateways, embedded boards, power supplies, or complete control panels, your products often end up in high-stakes environments: utilities, food production, pharmaceuticals, transport, building management, and critical infrastructure.

That matters because the consequences of failure can be bigger than a typical electronics product. A faulty component can trigger downtime, safety incidents, contamination, environmental harm, or regulatory scrutiny. And because ICS products are increasingly connected, cyber and software risks sit alongside traditional manufacturing risks.

This blog breaks down the key risks for UK-based ICS electronics and technology manufacturers, the practical steps that reduce claims, and the types of commercial insurance that can help protect the business.

What counts as ICS electronics and technology manufacturing?

ICS manufacturing is a broad category. It can include:

• Printed circuit boards (PCBs) and assemblies used in control environments
• PLC and I/O modules, relays, and industrial networking equipment
• Sensors, transducers, and measurement devices
• Control panels, switchgear integration, and panel wiring
• Embedded firmware and software that controls industrial processes
• Industrial IoT gateways and remote monitoring devices
• Safety instrumented systems (SIS) components

Many firms are hybrid businesses: part manufacturer, part designer, and part software developer. That blend is one reason the risk profile is complex.

The core risk areas for ICS manufacturers

1) Product liability (including “failure to perform” arguments)

With ICS components, customers may claim that a product defect caused:

• Downtime and lost production
• Damage to other machinery
• Safety incidents or near misses
• Spoilage or contamination (food, pharma, chemicals)
• Environmental releases

Even when the root cause is unclear, manufacturers can be pulled into disputes. Clear specifications, documented testing, and traceability are your best friends.

Practical controls that help:

• Robust incoming inspection and supplier QA
• Batch/serial traceability for components and finished goods
• Environmental and burn-in testing where appropriate
• Clear installation and operating instructions (including limitations)
• Defined “intended use” and exclusions for misuse
• Change control for firmware/software and hardware revisions

2) Professional indemnity (design, advice, and specification risk)

If you design boards, specify components, provide integration advice, or deliver firmware/software, you can face claims that your work was negligent—even if the physical product itself is fine.

Examples include:

• Incorrect specification for hazardous environments
• Poorly documented interfaces leading to integration failures
• Firmware bugs causing unexpected behaviour
• Advice that leads to a customer selecting the wrong architecture

This is where Professional Indemnity (PI) insurance is often relevant, especially for businesses doing design and consultancy alongside manufacturing.

3) Cyber risk and operational technology (OT) exposure

ICS is a prime target for cyber incidents. Even if you are “just the manufacturer,” you may still face:

• Ransomware disrupting your production and shipping
• Data breaches involving customer designs, credentials, or support logs
• Supply chain compromise (malicious firmware updates, compromised build systems)
• Liability claims if a vulnerability in your product contributes to an incident

Practical controls that help:

• Secure development lifecycle (threat modelling, code review, SBOMs)
• Signed firmware and secure update mechanisms
• Segregated networks for production, test, and office IT
• MFA for remote access and privileged accounts
• Incident response plan and tested backups

4) Product recall and rectification

If a component batch is faulty—or a firmware update introduces a critical defect—you may need to:

• Notify customers
• Replace or repair units
• Ship replacements urgently
• Send engineers to site

Recall/rectification costs can be painful even without third-party injury or property damage.

5) Intellectual property (IP) and contractual disputes

Technology manufacturing often involves:

• Licensing disputes
• Allegations of IP infringement
• Contract arguments over acceptance testing, delivery milestones, or performance

While insurance isn’t a substitute for good contracts, some covers can help with legal defence costs depending on wording.

6) Business interruption (BI) and supply chain disruption

ICS manufacturing can be sensitive to:

• Component shortages (chips, connectors, specialist sensors)
• Single-source suppliers
• Long lead times n- Calibration and test equipment downtime
• Fire, flood, or power issues at your premises

BI cover (usually part of a Commercial Combined policy) can help replace lost gross profit after an insured event, but it needs to be set up correctly.

Key insurance covers to consider (UK)

Insurance should match what you do: manufacture, design, integrate, and/or provide software and support. Common covers include:

Public and Products Liability

Helps protect against claims for injury or property damage caused by your business activities or products.

Watch-outs:

• Territorial limits (UK only vs worldwide)
• Jurisdiction limits (especially if you export to the US/Canada)
• Heat/hot work exclusions (if you do on-site installation)
• “Efficacy” or “failure to perform” exclusions

Professional Indemnity (PI)

Often relevant if you provide design services, firmware/software, advice, or specifications.

Watch-outs:

• Retroactive date and “claims-made” nature
• Contractual liability clauses
• Cyber exclusions (common—needs careful review)

Cyber Insurance

Can cover incident response, ransomware, business interruption from cyber events, and third-party liability.

Watch-outs:

• Minimum security requirements (MFA, backups, patching)
• OT-specific exposures and whether they’re included

Commercial Combined (Property + BI + Liability)

A packaged policy that can include:

• Buildings and contents
• Stock and materials
• Machinery and test equipment
• Business interruption (gross profit)
• Employers’ liability

Watch-outs:

• Correct sums insured and indemnity period
• High-value equipment and specified items
• Any “unoccupied” or security conditions

Employers’ Liability (EL)

A legal requirement in most UK cases if you employ staff.

Directors’ and Officers’ (D&O)

Useful if you have investors, a board, or you’re exposed to management decisions that could be challenged.

Goods in Transit / Marine Cargo

If you ship high-value electronics, consider cover for loss or damage in transit.

Engineering Inspection / Breakdown

If your business relies on specialist test rigs, environmental chambers, or production machinery, breakdown cover can reduce downtime.

Contracts, compliance and quality: the non-insurance side

Insurance works best when it sits on top of strong operational controls. For ICS manufacturers, focus on:

• Documented QA processes and calibration records
• Supplier management and component authenticity controls
• Clear product documentation and limitation statements
• Acceptance testing criteria and sign-off
• Firmware version control and release notes
• Secure remote support policies

If you operate in regulated supply chains (medical, rail, defence, utilities), align your documentation and traceability with customer expectations early—this reduces disputes later.

Common claim scenarios (realistic examples)

• A batch of power modules fails early, causing repeated line stoppages for a food producer.
• A firmware update introduces a bug that intermittently freezes an HMI, leading to downtime.
• A panel wiring error during integration causes damage to a customer’s equipment.
• Ransomware hits your production environment and you miss delivery deadlines.
• A customer alleges your specification advice led to a non-compliant installation.

These scenarios often involve a mix of liability, PI, cyber, and BI exposures—another reason policy structure matters.

How to reduce premiums and improve insurability

Insurers typically look for evidence of control. Helpful signals include:

• ISO 9001 (quality management) or equivalent documented processes
• Secure development practices (SBOM, signed updates, code review)
• Strong supplier vetting and traceability
• Formal incident response and disaster recovery planning
• Clear contracts with limitation of liability and defined scope

Even if you’re not ISO certified, having written procedures and records can make a meaningful difference.

Choosing the right insurance structure

Many ICS manufacturers need more than a basic “electronics manufacturer” policy. The right approach often involves:

• Products liability aligned to your export footprint
• PI that reflects design/software exposure
• Cyber that matches your real operational risk
• Property and BI set to realistic worst-case downtime

The goal is not to “buy everything,” but to avoid gaps where a predictable claim would fall between policies.

Next steps: get a policy that matches your actual risk

If you manufacture ICS electronics or technology products, it’s worth reviewing your risk profile before renewal or expansion into new markets.

At Insure24, we help UK technology and manufacturing businesses arrange cover that reflects how you design, build, test, ship and support your products.

• Speak to our team on 0330 127 2333
• Or visit co.uk to discuss your requirements and get a quote

FAQs

Do ICS manufacturers need Professional Indemnity insurance?

If you design products, provide specifications, write firmware/software, or offer integration advice, PI is often worth considering. It can respond to claims alleging negligence in professional services, which products liability may not cover.

Does products liability cover downtime losses?

Not always. Many policies focus on injury or property damage. Downtime and “failure to perform” claims can be restricted by policy wording, so it’s important to check.

What if we export to the US?

You’ll want to confirm territorial and jurisdiction limits, and whether US/Canada is included. This can affect premium and underwriting requirements.

Can cyber insurance cover ransomware business interruption?

Often yes, but it depends on the policy and your security controls. Insurers may require MFA, backups, and patch management.

We do panel build and on-site installation—does that change things?

Yes. Installation work can introduce additional public liability and workmanship exposures, and may require different underwriting information (site work, hot work, height work, subcontractors).

How do we prove quality controls to insurers?

Keep records: test reports, calibration certificates, supplier audits, traceability logs, and documented change control. Underwriters like evidence, not just statements.