 In November 2013, Simmonds signed for Isthmian League club, Tilbury and featured regularly in their starting lineup, before leaving the club at the end of the season.On 2 August 2014, Donovan joined Conference North side Tamworth following a successful trial period, and was joined on the same day by Brendon Daniels and George Grayson.Simmonds joined Bishop's Stortford in October 2014.