Our Team


Meet The

Customer Service Team


 Marek Menger

Marek Menger

CEO / President

As founder and president of Petro-Valve, Inc., Marek Menger independently built the company from its start-up phase to one that achieved $50 million in revenue. He began the company with $20,000 of his own savings and within a year had driven revenues of more than $3 million. The next year, Marek Menger built a 10,000-square-foot warehouse and office facility in Houston. As the oil and gas industry in Texas faced challenges, Mr. Menger continued to grow Petro-Valve's market share. He secured $10 million in revenue by the end of the company's first decade and shortly thereafter moved the organization into a new facility that was 250 percent larger than the first. By Petro-Valve's 20th anniversary, he had established the company as an authorized stocking distributor for several top manufacturers. The company went on to secure many other such relationships and to enter a new 40,000-square-foot facility.

Currently, Marek Menger utilizes his valve industry expertise in a new venture. Menger Valve, Inc., opened in 2017 with its founder's entrepreneurial experience as its driving force. 


MOrgan Picture

Morgan Kiser

Customer Service

35 year valve industry veteran Morgan Kiser joins Menger Valve adding great value to the customer service team. 23 years working with Marek Menger at Petro-Valve, Morgan’s extensive technical knowledge of the valve industry is a valuable addition to the growing Menger Valve family.




Terri Kerr

Customer Service

Terri Kerr joins the Menger Valve Team, departing Petro-Valve after 16 years. Terri's inside sales customer support with extensive valve experience adds value to customer expectations. The growing Menger Valve family with staff experience and knowledge welcomes the opportunity to serve you! 



Wallis Green

Customer Service

Wallis Green joins Menger Valve with over 40 years of experience in the business. Having worked on both the supply side and the manufacturing side, we are excited to have him on our team!


Mary Alice Castillo Menger Valve

Mary Alice Castillo

Customer Service

Mary Alice Castillo joins Menger Valve with exceptional experience as a Credit Analyst, recently working 6 years for Petro-Valve. Mary Alice and Menger Valve are pleased to have her join the team!




Charea Holz

Customer Service

Charea Holz is an industry veteran with 36 years in the valve industry.  Charea spent 11 years working with Marek Menger at Petro-Valve and then spent time working with Ferguson, Lockwood and Newco/Cameron. Charea’s extensive technical valve knowledge adds additional value to the Menger Valve Team!




Denese Rancheran

Customer Service

Denese has been with Menger Valve since February 2018. She previously was employeed with Petro-Valve for 5 years.

She attended school at Santa Monica College in California.


Drew King  

Drew King

Warehouse / Customer Support

Customers and Vendors! Menger Valve has its 1st Valve Baby!  Drew King the son of Industry 38 year veteran Bob King ( 23 years working with Marek Menger at Petro-Valve ) is following his father’s footsteps!  Drew’s self-initiative and desire to learn adds value to the Menger Valve Customer Service Team!



Sonia Caron  

Sonia Caron

HR & Driver Safety Manager 

Sonia Caron joins Menger Valve with over 10 years’ experience as a Human Resource professional. Sonia’s time working in the Oil and Gas Industry and with Petro-Valve, contribute to her credentials, success, and membership with HR Houston and SHRM. Menger Valve welcomes Sonia to the Team!


Staff Motivation Team



Lucas                                                          Peanut



(713) 636-5500


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Contact us at the email below for FREE HELP on technical questions, sourcing, mod questions, etc.  We have qualified staff available to assist you.



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