The chef will take over the existing Admiralty Restaurant and River Terrace Café at the 18th century building and relaunch them as Tom's Kitchen and Tom's Terrace respectively.
The 90-seat Tom's Kitchen at Somerset House, which is set to launch on 28 June, will serve an all-day menu of seasonal British dishes similar to Aikens' original site in Chelsea, which first opened in 2006.
Meanwhile the 60-seat Tom's Terrace, which will run from May until October, will be housed under a new-built canopy at the venue overlooking the River Thames. It will serve a menu of British food alongside a range of sharing platters.
Aikens said he was delighted to open the new restaurants. "Somerset House is a fantastic venue for this new look restaurant. I am looking forward to offering patrons a fresh and relaxed dining experience in outstanding surroundings," he said.
Aikens is the latest in a series of Michelin-starred chefs to join Compass including Michel Roux Jr, Albert Roux and Gary Rhodes.
Aikens was set to launch a second Tom's Kitchen restaurant in Canary Wharf but shelved plans after hitting financial difficulties. His restaurant business collapsed into administration in 2008 and was acquired by a management buy-out (MBO) team, TA Holdco.
By Kerstin KÁ¼hn
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