Gillies, who joined the group in May this year as sales and marketing director, replaces Ron Ferguson who joined as chief executive on a short-term contract earlier this year to reorganise the group and put in place a team for expansion.
SSMG said that since Gillies joined the group, he had helped increase turnover by 20%. He was previously sales director for William Sword where he was responsible for developing sales and strategy of pies and pastries. He has also worked at Bell Bakers, David A Hall, Enterprise Foods and Adam Cunningham.
Gillies said: “Demand for Scottish mussels, scallops and oysters has never been stronger. I am looking forward to driving ahead the remarkable growth that we have experienced in the last year.”