Bookkeeping & Accounting Services in Toronto. BBS Accounting CPA is a Bookkeeping firm with offices across Toronto, providing Bookkeeping, Accounting, and Business Advisory Services with dedicated account managers. We are ranked as one of Toronto's top Accounting & Bookkeeping firms, servicing clients from across Canada and worldwide. BBS Accounting is registered with the Chartered Professional Accountants of Ontario and is known for its professional development and Business Bookkeeping services provided to numerous industries across Toronto.