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Stewart Constantine

Stewart Constantine is a Director of C5 Alliance Professional Services and specialises in Cloud, infrastructure and security solutions covering both hardware and software covering multiple vendors.


Stewart has many years’ experience in business development, account management and partner management roles. He has worked with both clients and partners as a ‘Trusted Advisor’ providing advice to help reduce costs, drive productivity and growth, increase profits and improve customer satisfaction.

Stewart also uses his experience in partner relationships to manage C5’s affiliation with Microsoft and its other strategic vendor partners, helping C5 deliver best-in-class solutions to their clients.


Stewart has been involved in Microsoft Cloud Solution Provider licensing program since its introduction in 2015. He holds numerous Microsoft sales certifications in Windows, Teams, Microsoft 365 and Azure and has a deep understanding of the Microsoft licensing arena. He is also sales certified by HPe, Dell and Sophos.

Fun fact:

Stewart is an avid traveller and has visited North America, Africa, Asia, Australasia and Europe. In 2023, he spent a week’s holiday touring Cyprus – which was the 50th worldwide country that he has visited.

Read Stewart Constantine's Blogs