Penetration Testing for Energy & Utilities
Energy and utility companies operate critical infrastructure that underpins society, including power generation, electricity distribution, gas networks, water treatment, and renewable energy systems. These organisations face threats from nation-state actors, cybercriminals, and hacktivists targeting operational technology (OT) systems that control physical processes.
The convergence of IT and OT networks has created new attack vectors, with compromises of IT systems potentially providing pathways to industrial control systems. Penetration testing for energy and utilities must address both IT infrastructure and OT/SCADA systems, requiring testers with specialised expertise in industrial protocols and safety-critical environments.
Testing must be carefully planned to avoid disrupting essential services and must comply with sector-specific regulations including NIS 2 in Europe and NERC CIP in North America. The increasing deployment of smart meters, distributed energy resources, and IoT sensors across energy networks further expands the attack surface and testing requirements.
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.
NCC Group
Global cybersecurity consultancy with CREST, CHECK, and CBEST accreditation, renowned for deep technical research and comprehensive penetration testing services.
Nettitude
CREST, CHECK, and CBEST accredited UK consultancy within Lloyd's Register, delivering premium penetration testing for government and critical infrastructure.
Pen Test Partners
The UK's largest independent security testing firm, renowned for IoT/OT research, CBEST red teaming, and CHECK/CREST-accredited penetration testing across all sectors.
PwC Cyber Security
Global Big Four professional services firm delivering CREST, CHECK, and CBEST-accredited penetration testing and red teaming services from London, serving the UK's largest enterprises and regulated organisations.
Dionach
Global enterprise cybersecurity consultancy founded in 1999 in Oxford, holding rare CREST STAR-FS accreditation and delivering penetration testing, red and purple teaming, and PCI QSA services across five international offices.
Aristi
CHECK and CREST-accredited Birmingham-based cyber security consultancy with over 15 years of experience delivering penetration testing, red teaming, and OT security assessments for government and private sector clients.
Bridewell
Fast-growing CREST and CHECK-accredited UK cybersecurity consultancy with deep expertise in critical national infrastructure sectors.
Mandiant
World-renowned cybersecurity firm now part of Google Cloud, delivering threat intelligence-led penetration testing and red teaming informed by front-line incident response experience.
LRQA
The only organisation worldwide with a full suite of CREST accreditations. 250+ cybersecurity specialists operating in 55+ countries across pen testing, red teaming, and incident response.
Salus Cyber
Award-winning Cheltenham-based cybersecurity consultancy with NCSC CHECK Green Light status and CREST approval, specialising in defence, government, and critical national infrastructure security.
SensePost (Orange Cyberdefense)
Elite ethical hacking team within Orange Cyberdefense with 20+ year track record. Known for building industry-standard security tools and groundbreaking research.
Energy & Utilities Pen Testing FAQs
Can live OT/SCADA systems be safely pen tested?+
Yes, but with extreme care. Experienced ICS pen testers use passive techniques on live systems and may use offline replicas for active testing. Safety protocols and rollback plans are essential.
What regulations govern energy sector pen testing?+
NIS 2 (EU), NERC CIP (North America), and national energy regulators set cybersecurity requirements. Many require regular security testing of both IT and OT systems.
How do we test IT/OT convergence points?+
Testing should examine network segmentation between IT and OT, data diodes, historian servers, jump servers, and any systems that bridge the IT/OT boundary. These convergence points are critical attack paths.