• Geoff Humberstone

    Geoff Humberstone


    Has 49 years experience in high vacuum, has a BS and M.Met.E in Metallurgical Engineering, Cornell '66. He Started MHV in 1981, and has a wide engineering background covering the vacuum field from coating and processing to vacuum system design. He enjoys skiing and collecting antique automobiles.

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  • Scott Wieczorkowski

    Scott Wieczorkowski

    Plant Supervisor

    Scott attended Ferris State University, and since 1990 has been honing his machining skills. He is an excellent resource for our customers with vacuum pump and blower problems. In his spare time, he's an avid outdoorsman.

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  • Darel Roorda

    Darel Roorda

    Sales Engineer

    Darel earned a BSME from Iowa State University. He has helped many MHV customers with their vacuum pump and blower issues. He enjoys bicycle riding and is involved with his church.

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  • Kristy Young

    Kristy Young

    Purchasing and Inside Sales

    Kristy earned an Associates Degree at Davenport University, and brings much experience from the compressed air industry. Kristy is a competition handgun shooter, and enjoys roaring up to work on her motorcycle.

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  • Dave Milliman

    Dave Milliman

    Sales & Manufacturing Engineer

    Dave earned a Bachelor degree in Mfg Engrg from Western Michigan. His experience at area companies improves MHV's efficiency, and he's learning the vacuum industry quickly. Avocation: with his wife, forming their young son into an asset to society.

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  • Sally Moeller

    Sally Moeller

    Accounting, Credit, and HR

    Sally has a bachelor's degree in finance from Davenport University.  She enjoys bowling, golf, bicycling, classic car shows, and hanging out at Hutchins lake.

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