Master Magnetics Celebrates Four Decades in Business

An inventor at heart, Mr. Nellessen started Master Magnetics with a magnetic toolholder of his creation – in 13-inch and 24-inch lengths. This toolholder proved to be a popular item, and manufacturing took off. With more than 2 million toolholders sold to date, it was the product that launched a thriving enterprise.

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When Jack Nellessen opened the doors of Master Magnetics in the small town of Castle Rock, Colorado in 1976, the new company operated in a 4,000 square-foot manufacturing facility that earned $76,000 in sales. It was an impressive start.

An inventor at heart, Mr. Nellessen started Master Magnetics with a magnetic toolholder of his creation – in 13-inch and 24-inch lengths. This toolholder proved to be a popular item, and manufacturing took off. With more than 2 million toolholders sold to date, it was the product that launched a thriving enterprise.

Forty years later, Master Magnetics operates three locations in two states, totaling 109,350 square-feet of space for their manufacturing, distribution, warehousing and sales operations. While Mr. Nellessen no longer runs day-to-day operations, his daughter, Jennifer Brown, continues to grow their magnet business as chief operating officer.