I need a list of contact email addresses

I'm looking to market a B2B finance product to UK (not Ireland) independent garages . These businesses will be likely involved in providing service/repair/bodyshop/MOT/tyre's for cars/vans/motorbikes. I believe there are around 30,000 such businesses in the UK and would like to contact them by social media, email and telephone. Postcode address would be useful too.
Is this something you can quote on?
This could be for all the details in one go and/or broken down into geographical area's for a staged approach ie we could spread the work over a period of time.
Thanks