Chartered accountant Tomlinson has been group finance director of the British pizza restaurant chain since 1990 and is planning to return to Australia.
A spokesman for the company said that he was now helping its nominations committee look for a replacement.
Whoever is appointed is expected to start early in 2002. Tomlinson will leave the company after a short period of overlap.
Tomlinson, who trained with Peat Marwick Mitchell, has overseen the expansion of the chain, which also owns Cafe Pasta, both in the UK and in overseas locations such as Dubai and Tokyo.
The chain now has more than 250 restaurants in the UK. Its 2000 results showed profit before tax of £19.5m on a turnover of £89.5m.
Just one half of UK practices have implemented a pricing structure around auto enrolment implementation and advice - with many suffering increased costs
Deloitte's north-west Europe foray; BDO, Smith & Williamson investment paths; Shelley Stock Hutter; and Wilkins Kennedy discussed by editor Kevin Reed on our Friday Afternoon Live broadcast
Accountants should alter their perspective on auto-enrolment to maximise business opportunities, according to Eric Clapton.
Kevin Reed discusses whether new accountancy group Cogital can rival the Big Four...and its likely direction of travel