Henshaw Short Story Competitions Run quarterly with closing dates: March 31st, June 30th, September 30th and December 31st. Prizes: first £100, second £50, third £25.
Kudos list writing competitions and much much more:
The New Zealand Poetry Society runs an annual poetry competition and has a list of competitions on its site.
Bedford Writing Competition have listed details of my competitions and I am listing theirs in return.