RedEye offers many different benefits. BUPA healthcare, discounted gym membership (not by much though, and only selected gyms), free breakfast food (but you can eat at any time), pension, extra holiday after 2 years and lots of free social events.
Very generous annual leave, free breakfasts
Free breakfast, Discounted gym, 25 days of holidays + Birthday off, Purchased holidays, Discounted private medical insurance, life insurance are all good. Flexible working hours aren't very flexible though.
List based on reports from current and former employees. It may not be complete.