Highline Mushrooms was founded in 1961 by Dr. Murray O’Neil. We have four growing facilities (two in Leamington, Ontario, one in Kingsville, Ontario, and one in Wellington, Ontario) and a distribution centre based in Montreal, Quebec. From humble beginnings, we have grown to become the largest mushroom grower in Canada. We can attribute this to a number of factors; however, there are three fundamental principles that have guided us throughout the years:

  • Focus on Excellence – “First we will be best, then we will be first.” – Dr. Murray O’Neil
  • Associate Care – we are a family business and every Associate is a member of our family
  • Customer Service – our customers deserve the very best from us

With a passion for quality and innovation, Highline has driven to the forefront of many great technological advances in the North American mushroom industry. Our highly developed cropping techniques have enabled us to grow all white, mini bella and portabella mushrooms without the use of any pesticides or fungicides regularly required in the cultivation of mushrooms.

Change is key to our sustained growth and success and we recognize that it comes in many forms; sometimes this means finding new machines, sometimes it means working out how to do things better and sometimes it means adding new products and different packaging. From changes in our work processes to the adoption of state-of-the-art growing technology, the ultimate goal is to be Always Growing.


Our Address:

339 Conley Road, Wellington


43.97139, -77.3220842