Below is a list of professional organisations who may be able to help you with a variety of issues. Checking the relevant website will give you some idea of what they offer.
Working as an Architect, you have to be registered with ARB to practice in the UK. Here you can reregister and also search for other Architects on their register. There are also publications on their website.
RIBA is the national professional body for Architects. You can apply for RIBA membership and benefit from events, workshops, educational and CPD courses. You can also search for registered Architects and Architectural practices.