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.

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“We are proud of what we 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 and endorsements reflect Platte River's and portfolio company management's opinions and beliefs regarding the company and the investment. Such opinions and beliefs are subjective, do not represent a complete assessment of the company, the market or Platte River's overall investment performance and cannot be independently verified. Such statements are being offered as references for purposes of demonstrating the benefits of working with the Platte River team and not for the purpose of soliciting investors. Portfolio company executives receive/received a salary and economics from the portfolio company. No executives were paid for their testimonial or endorsement. There is a conflict of interest in these unpaid testimonials and endorsements in that all speakers stand to benefit from Platte River’s success, and they work/worked for a Platte River portfolio company.


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