So who are we Addison Medical Services is essentially a sole trader partnership with SSG UK Specialist Ambulance Service where I work currently as a Emergency Care Assistant Grade at this time on one of their many NHS Trust contracts doing frontline A&E ambulance service work, if shifts were slow etc then I may also as a sole trader do other cover such as events etc for other companies too. Contact for a quote. website given for partner company as currently don't have a website only linkin and fb pages