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O’Sullivan’s Accountancy Practice  

Learn how our tailored telecoms services seamlessly integrated their operations, enhanced communication, and maximized productivity. Uncover the tangible results, cost savings, and improved customer experiences that propelled O’Sullivan’s Accountancy to new heights.


O’Sullivan Accountancy is a progressive business who have recently expanded their client base and headcount. O’Sullivan’s needed a modern IT solution that was secure and efficient and would allow them to continue to grow easily. After reaching out to HCS, TJ O’Sullivan (Director) was introduced to our Microsoft Cloud PC solution, which he felt met his needs perfectly and at the right budget.


O’Sullivan’s operated an office based server prior to engaging with HCS. There were problems with response times, down time, flexibility and security with their existing solution. Also O’Sullivan’s needs had evolved with more face to face client meetings they needed secure remote access to sensitive client data. Also they needed to meet compliance standards and allow staff to work remotely without any connectivity or security issues.


HCS designed and deployed Microsoft Cloud PC into O’Sullivan’s moving all users’ data, PCs, files, folders and applications to the Microsoft Cloud. HCS also updated O’Sullivan’s outdated phone system to a new VOIP solution that integrates with MS Teams.


HCS’ system underpins O’Sullivan’s expanding business. Remote workers can access their desktop, data and applications securely from anywhere. Client data is much more secure. Processes have been streamlined and staff are more productive. O’Sullivan’s can now service their clients better and take on new clients and staff with ease.




“I would highly recommend HCS in moving forward with all IT business. HCS have provided us with a platform that will futureproof our business and keep us ahead of the curve.”

TJ O'Sullivan

Director, O'Sullivan Accountancy

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