It follows the retirement of former Rockfish NED John Barnes and comes as the South West-based restaurant group prepares to open new sites in Lyme Regis, Salcombe and Sidmouth.
Miller, whose previously spent eight years overseeing the marketing strategy at rapidly expanding upscale bakery chain Gail’s, will support Rockfish in its customer engagement and brand building.
The appointment of Grieg-Gran, meanwhile, is described as a ‘key step’ in the group’s vision to lead the online fish sector, building on its existing success that now sees over 12,000 homes receiving fresh seafood directly from the daily landings at Brixham via Rockfish’s online seafood market platform.
“This is a pivotal year for Rockfish as we open beautiful new restaurants, invest further in our people and brand, and build the country’s most exciting online seafood business,” says Mitch Tonks, Rockfish founder and CEO.
“Robert’s insight and track record in building one of the UK’s most successful online food businesses will be invaluable as we scale this part of the business to its full potential.
“Both Romy and Robert bring exactly the right kind of energy, vision and experience to support this leg of the Rockfish journey.”
In November last year Rockfish took home the Innovation Award at Restaurant’s R200 Awards for its pioneering Virtual Fishmonger offer.