About AAT

The Association of Accounting Technicians (AAT) work across the globe with around 125,000 members in more than 90 countries. Their members are represented at every level of the finance and accounting world.

Business Driver

AAT wanted a company who could provide externally hosted infrastructure and services (public and private cloud), to support new and legacy systems, and to assist AAT with the on-going development and implementation of infrastructure to support them. Trustmarque were engaged to provide cost effective ICT Infrastructure and Services and to ensure arrangements and standards were in place to modernise the infrastructure to host new systems being implemented as components of the BSS. Additionally AAT looked to Trustmarque to support the migration of their existing systems to the new infrastructure and to rationalise and retire existing infrastructure as it became obsolete, inefficient or relatively expensive to maintain.


Trustmarque established itself as AAT’s hosting partner of choice, with over 108 VM’s in Trustmarque’s cloud, delivering a variety of cloud based services to AAT and its members (SaaS, PaaS, IaaS). Providing connectivity between components of AAT’s hosted business systems architecture and resolve technical or operational issues affecting delivery, accessibility or resilience of infrastructure services provided.


AAT required an agile partner able to host its ICT systems and server infrastructure and many of its ICT services. They were looking for a partner who could provide first class professional services and consultancy as much of its existing business systems and hardware were old and outdated. Trustmarque’s cloud environment fit the business requirements, and a successful transition was implemented. This coupled with the strong relationship built on trust and assurance between AAT and Trustmarque meant that a commercially wrapped, agile solution was achieved.

Why Trustmarque

The Trustmarque team supported the needs and innovation of AAT right from the beginning, tailoring their needs into a viable solution. AAT are now running its infrastructure platform, WebDev Services, Storage and VM’s out of Trustmarque’s cloud platform with a 24x7x365 day managed service support agreement in place. AAT now experience a responsive, collaborative working environment, enabling them to work flexibly and securely.