Richard Williamson is a full service chartered professional accounting firm located on King Street in downtown St.Catharines. Serving the needs of small business, individuals and not for profit organizations, the firm opened in 1984 shortly after the principal, Richard Williamson received his CA designation in 1983. Offering a full complement of services, the firm can assist in tax planning and preparation, financial statement preparation, general bookkeeping, source deductions and other government returns including WSIB and EHT, estate planning and much more.