Fuller Landau LLP is a leading mid-sized accounting, tax and advisory firm with offices in Toronto and Hamilton. Fuller Landau LLP is a leading mid-sized accounting, tax and advisory firm with offices in Toronto and Hamilton. The Fuller Landau team is committed to helping owner-managers and entrepreneurs build value and grow their businesses. We are uniquely positioned to do just that because - as business advisors and entrepreneurs, ourselves - we know first-hand what it takes to meet the challenges of, and succeed in, any business environment.