Oklahoma City, OK



Investment Status


Investment Date

Nov 2012

Realized Date

Jul 2014

Sold to

The Dover Corporation

Headquartered in Oklahoma City, OK, WellMark produces a full line of liquid and pneumatic flow controls and valves to the oil and gas and petrochemical industries. WellMark carries a broad line of diaphragm operated valves, pneumatic and electrical level controls, safety relief valves, chemical pumps, liquid level indicators, switches, point level electronic controls, and various accessory products. The company sells products under the WellMark, Cemco and Major brands.

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“We are proud of what we have accomplished during our partnership with Platte River. We expanded our sales footprint and developed exciting new products to better serve our customer base.”

Luis Gomez, CEO


Testimonials are provided to demonstrate the benefits of working with the Platte River Team. They are not provided to solicit limited partners in a Platte River Fund. Some portfolio company executives featured in the testimonials may also have an interest in a Platte River Fund; such executives’ testimonials are not offered on the basis of being an investor in a Platte River Fund but rather as an executive who works with the Platte River Team.


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