WMKL is a mid-sized public accounting firm where our knowledgeable and experienced staff of over 60 accounting professionals is committed to providing excellence in delivering services to all sectors of the community including retail, manufacturing, service, professional, agribusiness, construction, and not for profit.Wormald Masse Keen Lopinski LLP was first established in 1977 by partners Donald Beaton and Richard Wills in a small office building in downtown St. Catharines, Ontario. Lawrence Wormald and Laurent Masse were admitted as partners in 1990 while Richard Wills and Donald Beaton retired in 1996 and 1999 respectively. In 1992, the firm purchased the building where it is currently located at 344 Lake Street in north St. Catharines. William Keen, Michael Lopinski and Arthur Lopinski became partners in 1997, 1999 and 2002 respectively. Greg de Prinse joined the firm in 2005 as managing tax partner. Since then, WMKL has continued to grow with admittance of three additional partners – Kevin Burtch in 2007, Todd Zavitz in 2008 and Algis Jovaisas in 2009. Angie Greenwood became a partner in 2014, Dan DiGirolamo and Steve Sakes in 2015, followed by Mike Dale in 2020. Ryan O' Sullivan, Greg Angelone and Christy Holland were then admitted as partners in January 2022. Most recently, Joanna Dolce, Nathan Black, Brett Linklater & Dan Zadorozny were admitted as partners in 2023.