Beaven replaces John Weir, who leaves the company at the end of June. Beaven has been running Future Network's subsidiary FXM International, which manages Future's international Xbox-related activity outside the US, since June 2002.
Roberts steps up to publishing director from her current role of group publisher, where she was responsible for Future's 13 games titles.
Robert Price, managing director of Future Publishing, said: "These are extremely well-deserved promotions. Dom and Mia have excellent track records, with extensive publishing and marketing experience. They will play a key part in achieving Future's growth plans by growing their portfolios, seeking opportunities in new and existing sectors and by maximising profitability."
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