IoT Penetration Testing Providers

IoT penetration testing evaluates the security of Internet of Things devices, their firmware, communication protocols, cloud backends, and mobile companion apps. This holistic approach examines the entire IoT ecosystem for vulnerabilities that could allow attackers to compromise devices, intercept data, or use IoT devices as entry points into corporate networks.

Testers analyse hardware interfaces (JTAG, UART, SPI), extract and reverse-engineer firmware, examine wireless protocols (Bluetooth, Zigbee, LoRa, Wi-Fi), test cloud APIs and management platforms, and assess the security of update mechanisms.

IoT pen testing is critical for manufacturers of connected devices, organisations deploying IoT at scale, and critical infrastructure operators. Common vulnerabilities found include hardcoded credentials, unencrypted communications, insecure firmware update mechanisms, and weak authentication. As IoT devices proliferate across industries from healthcare to manufacturing, ensuring their security is vital for protecting operational technology environments and preventing large-scale compromises.

Related compliance:NIST CSFISO 27001NIS 2
7 providers
Top UK ProviderElite TestersResearch-Driven
SECFORCE logo

SECFORCE

Leading UK offensive security consultancy based in Canary Wharf, delivering CREST-accredited penetration testing and adversary simulation to organisations with the most demanding security requirements.

95
Score
LOCLondon, United Kingdom
Web ApplicationNetworkMobile App+9
CRESTISO 27001Cyber Essentials
Best UK ProviderBest for EnterpriseResearch Leaders
NCC Group logo

NCC Group

Global cybersecurity consultancy with CREST, CHECK, and CBEST accreditation, renowned for deep technical research and comprehensive penetration testing services.

75
Score
LOCManchester, United Kingdom
Web ApplicationNetworkMobile App+13
CRESTCHECKCBEST+6
Nettitude logo

Nettitude

CREST, CHECK, and CBEST accredited UK consultancy within Lloyd's Register, delivering premium penetration testing for government and critical infrastructure.

64
Score
LOCLondon, United Kingdom
Web ApplicationNetworkMobile App+10
CRESTCHECKCBEST+2
WithSecure logo

WithSecure

Leading European cybersecurity firm offering penetration testing with deep expertise in EU regulatory compliance including GDPR, NIS 2, and TIBER-EU.

49
Score
LOCHelsinki, Finland
Web ApplicationNetworkCloud+7
CRESTISO 27001
SEC Consult logo

SEC Consult

Leading European cybersecurity consultancy from Vienna with a prolific vulnerability research program and deep expertise in IoT and embedded systems security.

43
Score
LOCVienna, Austria
Web ApplicationNetworkMobile App+7
ISO 27001
IOActive logo

IOActive

Elite boutique security consultancy specializing in IoT, SCADA/ICS, embedded systems, and hardware security research with world-renowned researchers.

42
Score
LOCSeattle, Washington, United States
Web ApplicationNetworkIoT+7
OSCP Employer
Praetorian logo

Praetorian

Offensive security firm founded by former DoD professionals, offering elite penetration testing and the Chariot continuous attack surface management platform.

40
Score
LOCAustin, Texas, United States
Web ApplicationNetworkCloud+7
SOC 2

IoT Penetration Testing FAQs

What types of IoT devices can be pen tested?+

Any connected device can be tested including industrial sensors, medical devices, smart home products, automotive systems, wearables, and building management systems.

Do you need physical access to the device?+

Hardware testing requires physical access for interface analysis. Remote testing can cover cloud backends, APIs, and network communications, but physical access enables the most thorough assessment.

What IoT-specific vulnerabilities do testers look for?+

Testers look for hardcoded credentials, insecure firmware updates, unencrypted communications, exposed debug interfaces, weak authentication, and vulnerabilities in wireless protocols.