Mark moved to Vermont in 1974 at the age of 20. In 1978 he opened a natural food store with Steve Birge called Black River Market.

In 1978 the store morphed into a wholesale distribution company, Black River Produce, which currently has about 150 employees. After selling Black River Produce, Mark started a new business, Vermont Family Farms. He is married to Margie Straub and they have raised four sons. He has served on numerous local and state boards including “Vermont Fresh Network.”