Does anyone have any recommendations or advice on institutions and companies that can help guide/kick start development of public-space digital art ideas? e.g Phone apps for use in public spaces; this Rain exhibition: http://www.bbc.co.uk/news/uk-england-london-19873953

Currently I have several ideas that are quite ambitious. Unfortunately, I have very little experience in how to go about getting these ideas delivered. Currently I'm based in London, if that helps in anything.

Thanks