Emeny, who first joined Fuller, Smith & Turner in 1996, will take up the position on 1 July when current executive chairman Michael Turner will switch to serving as a chairman in a non-executive capacity.
Announcing the appointment this morning, Turner said the move represented the next stage in the company's succession plan.
"Simon’s record of success has been outstanding. He has delivered a first class performance during his time with Fuller’s and I know he is the right person to lead the company on to the next step in its long-term development as a leader in its field," he said.
The 47-year-old taking the helm at the famous London firm joined Bass brewery in 1987 as a graduate trainee. He spent nine years at the business in various roles culminating in a period as strategic planning manager.
Emeny then joined Fuller's to run the company's managed pubs; he joined the main board in 1998 and was promoted to become managing director of Fuller's Inns in 2006. He became group managing director in 2010.
"I feel proud to be appointed chief executive of a company based on strong values, quality, and long term vision," said Emeny today. "I would like to thank Michael for his inspirational leadership and I look forward to continuing to work closely with him in the future."
Founded in 1845, Fuller's remains an independent family brewer and still operates from its original Chiswick base.
The company operates a beer company and a pub division which now runs over 380 pubs, bars and hotels in the south of England. Around half of the company's pubs are managed, the rest are leased or tenanted.
In November last year Fuller's revealed it had shrugged off the bad weather in the second half of 2012 to deliver increased revenues and profits. The strong performance was driven in part by the growing strength of new acquisitions including two pubs which were added to the portfolio in the six months to 29 September.