Certifications.
Cornerstone is proud to be certified by the British Standards Institute (BSI) for: ISO 9001 Quality Management, ISO 14001 Environmental Management, OHSAS 18001 / ISO 45001 Occupational Health and Safety Management, ISO 22301 Business Continuity Management and ISO 27001 Information Security Management.
BSI ISO certification marks are internationally recognised for representing quality, reliability and continual improvement. They give assurance and peace of mind to:
- Our joint venture shareholders Vodafone and Telefónica and to the other operators who place their equipment on our infrastructure and
- To the tens of millions of customers who rely on us for their mobile connectivity
In 2015, we were the first UK company in the telecommunications industry to obtain all five certificates in one year, and we remain committed to achieving and maintaining excellence.
Cornerstone’s Integrated Management System (IMS) is the integration of our five management systems certification. At Cornerstone, we uphold our brand values and believe in ‘Maximising the chances of a great outcome’ through applying the ISO concepts of ‘Process Approach and Risk-Based Thinking’ to which we are certified.




