Southon leaves the role he held for six years, with Non-Executive Chairman Michael Buckley to become Executive Chairman until a replacement is found.
Co-founder Southon follows in his fellow Co-founder Simon Collins’ footsteps, who left his non-executive director position last October.
Outgoing CEO Southon said: "During my six years as CEO, the main focus of the company was on B2C real money gaming.
"However, with the last of those assets disposed of in July 2019, and the company now stable and successfully implementing its new B2B-focused game development and licensing strategy, I feel now is the right time for me to pursue a new challenge."
The announcement was made in the supplier’s pre-trading update – full year to 31 December 2019 – with FY19 revenue expected to be ahead of the board’s expectations, due to eight new licensing agreements made during this period.
Despite this, the supplier expects to post an adjused EBITDA loss of approximately £0.5m ($648,000) with preliminary FY19 results to be reported in April.
During the first half of 2019, Gaming Realms went live with William Hill, while so far in 2020, the supplier has launched its content on LeoVegas and Buzz Bingo.
