The promotion comes after Tithof spent the last three years as ANZ channel director.
Prior to joining Unit4, he worked for NetSuite for more than a decade, first as corporate account manager and then as ANZ channel manager.
Tithof previously worked as an account manager at US-based voice and data communications service provider Expanets.
"I have been working for Unit4 in this region for over three years and I see many great opportunities to further develop our presence in Australia and New Zealand since Unit4 has such a unique product in comparison to the others in the market", said Tithof.
"I am very excited to be stepping up into this new opportunity, and I am looking forward to what Unit4 can achieve in 2018."