Wall left BCD M&I on 31 January after more than five years with the events agency.
He took on the newly created role of vice president of industry and partner relations EMEA in July 2013 after 18 months as vice president of operations, EMEA.
Andrew Perolls, managing director of BCD M&I, EMEA, said: "Matthew's role in industry relations has always been led from the US and it was decided we needed to reorganise the business. Sue Burgess, senior operations director, will take on part of this role and will liaise directly with the US.
"We are forecasting strong growth for the year ahead and we have a strong leadership team in place. We are aiming to grow the business in terms of revenue by 10%, both from the events business and strategic meetings management. We will also be recruiting eight new members of staff across Europe."
Wall exclusively told C&IT: "Returning in the New Year, BCD M&I had conducted a review of roles and offered me the opportunity to take redundancy. This coincided with my wish to move on after five years with the agency, so it was a great opportunity to pursue a new challenge elsewhere.
"Although setting up my own business is definitely an option, I’m also looking at agencies and indeed corporates that reflect how passionate I am about the power of live communication."