Joanne Tanner


Job Title: Group CFO

Company: Decision Inc.


Joanne Tanner has been the group CFO of global technology services business Decision Inc. since April 2022.

Before this, she worked at Tarsus Technology Group, where she started as a group finance executive in 2014 and worked her way up to becoming group CFO in 2019. Prior to that, she was a financial controller at Gemalto, and a head of finance and Worldmark South Africa.

She started her career as an article clerk at Deloitte South Africa, and briefly served as a senior auditor for the firm’s Canadian department in 2007.

Joanne has a BAcc honours degree from the Stellenbosch University, and has taken a data analytics short course from the University of Cape Town, as well as the Royal Bafokeng Holdings’ executive development programme from Wits Business School.

She is also a member of an all-moms water polo team.

2022 – Present     Group Chief Financial Officer, Decision Inc.
2019 – 2021          Group Chief Financial Officer, Tarsus Technology Group
2017 – 2019          Senior Group Finance Executive, Tarsus Technology Group
2014 – 2017          Group Finance Executive, Tarsus Technology Group
2010 – 2014          Group Treasury and Risk Management, Tarsus Technology Group
2009 – 2010          Financial Controller, Gemalto
2007 – 2008          Head of Finance, Worldmark South Africa
2007 – 2007          Senior Auditor, Deloitte Canada
2004 – 2006          Article Clerk, Deloitte South Africa

2017 – 2017          Data Analytics Short Course, University of Cape Town
2011 – 2011          Executive Development Programme, Wits Business School
2000 – 2003          BAcc, Honours, Stellenbosch University

Decision - Crunchbase Company Profile & Funding

About company: Decision Inc. is a global technology services business helping enterprises leverage technology to create a new future for their business.

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