All businesses are "professional". These are what we might put into the category of Solicitors, Estate Agents, Accountants etc. .... in otherwords, businesses where maybe one needs to belong to a professional body.
Robinson Webster
Aequitas Accountants
Walker Crips
Stevens Estate Agents
Fairfield Banks
Accountancy Joke
Best name we know for an Accountancy firm.
Tim Phillips - Cambridgeshire Accountants
Rimes & Co
Institute of cost management accountants of Pakistan