Marissa Johnston


Marissa Johnston - Manager - Business & Finance

Marissa is the Manager - Business & Finance at TSA. Marissa has over 20 years’ experience in accounting and business managerial roles.

Prior to starting at TSA, Marissa was the Financial Controller for four years at Adams Food Group; an external sales management company for one of Australia’s largest recognised integrated supermarket chains.

Before taking on the FC role, Marissa lived and travelled abroad. During this time, she was employed under the Finance and Domestic Bursars’ at Balliol College, an academic College in the heart of Oxford, UK.

Marissa spent the first 12 years of her career at Cooke and Dowsett Plumbing as Assistant Accountant and Office Manager. Marissa was instrumental in helping the plumbing organisation grow exponentially from a domestic plumbing company with 7 employees to a national business with over 300 employees.

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