Data Scraping - Managing Directors and Marketing Managers

I want to build a database of motorhome/campervan manufacturers in the UK. Ranging from big brands who release their own converted vehicles such as VW and Mercedes, and also all the other companies who convert commercial vans into campervans themselves, like Bailey Motorhomes, and Swift motorhomes and also all the smaller companies in the uk who convert vans into campervans such as www.roadhaus.co.uk/.

I need to find marketing managers, or in the case of smaller companies just the director/owner, so that I can talk to them about potential business for content creation