About Portcullis

Portcullis Christmas Party

Since our formation in 1986, Portcullis has developed into a widely recognized and respected provider of Information Security services with the strong foundation that comes from being an independent, mature and financially stable Company.

Portcullis’ revered reputation stems from our Security Testing Service, launched back in 1996, which flourished into the professional and high quality service that our Clients benefit from today. This is further endorsed by Portcullis’ array of industry accreditations and the numerous accredited CHECK Team Leaders / Members and CREST Application / Infrastructure Consultants we have, which stands testament to the investment Portcullis makes in its staff, training and R&D.

Over the years Portcullis has also expanded its key portfolio of services, which now fall into 4 main disciplines – security testing, digital forensics, cyber defence and security consultancy services. The most recent addition to our range of specialist services has been the launch of our Cyber Threat Analysis and Detection Service (CTADS®) and eDisclosure Service. These specialist IT security services not only broaden Portcullis’ offering to its clients but they also enhance and compliment each other, enabling us to deliver comprehensive solutions to our clients as a trusted security advisor and dependable security partner.

Today, Portcullis is in the proud position of employing one of the largest multidiscipline information security resources in the UK across two locations, in Pinner, London (Middlesex) and Cheltenham (Gloucestershire), and has extended this capability further with international offices in San Francisco (USA) and Madrid (Spain). To accommodate the continued growth of our services and staff, we have recently commissioned a new purpose built Headquarters in Northwood that will include an HMG standards based secure facility.

With a client base encompassing Central and Local Government, Banks, Manufacturing, Charities, Telecoms, Utilities, Insurance, Retail, Healthcare, Energy, Education, Fast Moving Consumer Goods, Technology, Financial Services, Media and many international Blue Chip clients operating in EMEA and the Americas Portcullis’ breadth of expertise and experience is second to none.

View all our accreditations and affiliations

Get in touch!

Would you like to know more about our services? You don’t know where to begin? Get in touch and speak to an expert consultant on UK +44 20 8868 0098 or US +1 415 874 3101.You may also fill out the form below!

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