The Portcullis brand was launched in 1986; subsequently Portcullis Computer Security Limited (CSL) was founded in 1992 by three pioneers of the IT Security Industry. The founders of the company are still the Directors of the company today.

From those early days of providing anti-virus software, data encryption, identification and authentication products, remote PSTN secure dial-in solutions and consultancy services, Portcullis CSL grew with the industry but unlike so many others we remained dedicated to the security sector.

Our Guardian Angel range of workstation identification and authentication (I & A) products set new and exacting standards for the security of client systems and the data they hold. This customer-led solution underwent constant development through several versions over three decades.

Alongside product development Portcullis was also an early provider of Security Testing Services, complementing our activities in consultancy.

The accumulated knowledge of our Technical Department naturally led to the development of further products designed to answer specific client's needs in areas such as data erasure, encryption, malware detection and prevention.

Portcullis has been associated with the Government's Communications Electronics Security Group (CESG) for nearly 20 years and was the first company to be accepted into all three CESG Industry Partnership Schemes.

Throughout the 90's the Security Testing Services sector of the business grew as individual clients requested specific jobs to address particular problems. From such client led beginnings our Security Testing Team has grown into one of the largest and most professionally-skilled in the in the UK.

It follows quite naturally that this year Portcullis launched our new offering, professional Forensics Services, again as a result of identifying an definite need from our clients and feeling that what the marketplace had to offer was far from exhaustive. This department operates out of a secure operations centre in Cheltenham and is headed up by Andrew Henry, formally a senior forensics investigator with CESG.

At Portcullis we never rest on our laurels because we know that the nature of information security threats never stands still. Our dedication and vigilance is our clients' guarantee that we put their security first.