Blackthorn GRC Limited | 190 followers on LinkedIn. Providing secure CMS web-based solutions for Public Sector, Banking, Military and Aerospace | Blackthorn is a UK based industry leader in information technology services. Helping organisations achieve effective oversight through enterprise, Governance, Risk and Compliance (eGRC) programmes. Driven by a dedicated, reliable and technically knowledgeable team with over 40 years of experience within the field, Blackthorn provides high quality and secure Case management and software solutions.