Thirty-5 Capital, a Chicago-based venture capital firm, announced a new partnership with ProXR LLC, a St. Louis-based sports technology firm that develops, markets and licenses ergonomic grip design with products targeting baseball, hockey, golf and others.

“I’m excited to lead the growth of ProXR’s brand. The products they’ve developed are precisely what athletes around the world are searching for – innovations that improve performance and increase power,” said Ron Saslow, founder and president of Thirty-5 Capital. “ProXR has 15 years of proven product innovation, so this is an exciting opportunity to use our strategic leadership to elevate this enterprise to the next level.”

“For ProXR, this relationship with Thirty-5 Capital represents the inflection point we’ve been building toward,” said Grady Phelan, founder and president of ProXR. “Ron brings international business leadership and focused corporate vision to this venture. ProXR will do for hands what Nike did for feet.”

A three-way partnership will lead ProXR with the addition of Dr. Robert Morley, a long-time ProXR investor and board member. Morley, a retired professor of Electrical and Systems Engineering at Washington University in St. Louis.

Saslow will become chief commercial officer focusing on marketing and expansion into global markets. Phelan will become chief innovation officer focusing on product innovation and development.