Newton, whose employment with Grass Roots is to come to an end on 17 November after almost five years with the agency, will remain in the industry and has set up his own consultancy.
Newton joined Grass Roots in 2009 after nine years at Zibrant, where he was head of procurement. He has also enjoyed prominent roles within a number of industry associations, including Eventia, ISES and the HBAA, and has been a regular blogger for C&IT.
His new business, Arni Consulting, is offering meetings and events consultation for corporates, agencies, DMCs and hotel groups.
Talking to C&IT, Newton said: "I was headhunted by Grass Roots in 2009 and given a great opportunity. I am really proud of the work we delivered.
"Consultancy is something I've really enjoyed, so I have set up Arni Consulting, where I will draw on my experience and expertise, particularly my background in procurement. I am working on a number of potential projects at the moment, including a corporate organisation and a destination that is looking for advice on how to attract and create business within the meetings and events sector."
Grass Roots issued a statement regarding Newton's departure. It said: "Grass Roots Meetings & Events has confirmed that the role of director of supply chain has unfortunately been made redundant and Alan Newton is to leave the company.
"Going forward, responsibility for supplier relationship management will be split across a team working across several Grass Roots offices. This change in strategy is designed to give suppliers greater access to all Grass Roots divisions and extend the breadth of relationships. Alan Newton leaves with Grass Roots' very best wishes for the future."