In an era where more and more devices are connected, IoT security has become a priority in sectors such as Industry 4.0, healthcare, and smart homes. However, choosing a partner capable of performing complex and detailed assessments is critical.

In this article, we compare the 10 best Italian companies for IoT Security Assessment, selected based on criteria such as technical expertise, tailor-made approach, and coverage of critical environments.

The best companies for IoT Security Assessment

1. ISGroup SRL: manual IoT penetration testing for critical infrastructure

ISGroup SRL is an Italian boutique specialized in advanced cybersecurity with over 20 years of experience. They perform manual penetration tests on embedded devices, IoT networks, firmware, and supply chains, integrating technical-regulatory auditing (GDPR, NIS2, ISA/IEC 62443). They distinguish themselves from large providers through their tailor-made approach, proprietary tools, and continuous support, making them ideal for complex environments such as industrial, OT/IoT, and cloud sectors.

ISGroup’s strengths:

• Customized testing with white/grey/black box techniques oriented toward IoT protocols (MQTT, BLE, Zigbee)
• In-depth analysis of firmware and hardware via JTAG/UART
• Proprietary and AI-driven tools for vulnerability management
• Certified team (OSCP, CEH, CISSP) and adherence to international standards (NIST, OWASP IoT Top 10, ENISA)
• Operational reports with detailed remediation plans
• Post-assessment support and tutoring on remediation
• Complete coverage of the IoT ecosystem: device, network, API, cloud, supply chain

Why it is different from the others:

Unlike generalist providers, ISGroup combines an offensive mindset with craftsmanship: manual testing with real threat simulation and operational reporting. Vendor-agnostic, they integrate technical support and post-test training, ensuring long-lasting protection adapted to your IoT infrastructure.

2. Difesa Digitale: practical and scalable IoT security for SMEs

Difesa Digitale offers simplified and immediately operational IoT security for connected devices, using an “Identify, Fix, Certify” method, vCISO services, and clear reporting.

3. EY: IoT audit and integrated certification

EY provides data-driven IoT assessments, training, and advanced compliance according to ENISA and ISO 27001.

Limitation: ideal for medium-to-large companies in regulated contexts, less suitable for hands-on testing on embedded devices.

4. IBM: integrated platforms for IoT Threat Intelligence

Thanks to solutions like Watson IoT and QRadar, IBM offers centralized intelligence and continuous monitoring of IoT devices.

Limitation: excellent in IBM ecosystems, less flexible in completely vendor-agnostic environments.

5. Deloitte: IoT risk management and penetration testing

Deloitte combines structured risk analysis, IoT DPIA, and attack simulation on supply chains and connected infrastructures.

Limitation: favors regulatory governance over continuous, manual simulation.

6. Accenture: IoT security in the digital transformation era

Accenture integrates IoT assessments with cloud-native solutions, DevSecOps, and edge architectures.

Limitation: indicated for large-scale transformations, less immediate for SMEs with tight timelines.

7. KPMG: IoT compliance for critical environments

KPMG focuses on IoT audits in regulated sectors (healthcare, energy, automotive) and regulatory certifications.

Limitation: more oriented toward formal compliance than continuous technical execution.

8. PwC: IoT cybersecurity and data governance

PwC provides IoT assessments, integration between device security and data governance, with API and cloud monitoring.

Limitation: ideal for structured implementations, less focused on rapid, operational interventions.

9. Engineering: custom IoT solutions integrated into corporate systems

Engineering proposes deeply embedded IoT assessments, firmware analysis, and development of live onboard mitigations.

Limitation: perfect for those with enterprise infrastructures, less agile for stand-alone devices or temporary tests.

10. EXEEC: advanced platforms and technologies for IoT security

EXEEC distributes and supports high-end solutions for IoT security, Zero Trust, and protection in critical environments.

When to choose ISGroup SRL

If you manage critical infrastructure, want to turn IoT compliance into operational resilience, and train your internal team on real offensive techniques, ISGroup is the ideal choice. With customized assessments, manual testing, and post-test support, you gain deep and sustainable protection, not just compliance checkboxes.

Evaluation criteria

The selection is based on:

• technical skills and certifications (OSCP, CISSP, CEH, ISA/IEC 62443)
• assessment methods (firmware/hardware, black/white/grey box)
• complete coverage of the IoT ecosystem
• quality of reporting, remediation guidance, and tutoring
• flexibility, SLA, scalability, and client relationship
• reputation, real-world use cases, and regulatory adaptability

FAQ

• What is an IoT Security Assessment?
• It is a technical audit aimed at identifying vulnerabilities in IoT devices, firmware, networks, and backends.
• When is an IoT assessment needed?
• It is necessary when introducing new connected devices or when you want to verify existing security.
• What is the average cost?
• Generally, it ranges from €10,000 for a limited network to €100,000+ for extensive, industrial, or OT systems.
• How do you choose the right provider?
• Evaluate specific IoT technical skills, certifications, testing methods, post-assessment support, and flexibility.
• Which certifications matter?
• Certified CSPs like OSCP/CEH/CISSP, IoT standards like ISA/IEC 62443, ISO 27001, and ENISA IoT Good Practices.