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About Rupp/Rosebrock, Inc.

A Dedicated Team: Our Greatest Asset

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Founded in 1989 by Perry Rupp and John Rosebrock, Rupp/Rosebrock, Inc. has flourished into a reputable business while maintaining the personal "small-town" ideologies that form the backbone of our company. We are proud to serve Northwest Ohio by assisting Owners in their pursuit for excellent construction results.

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Rupp/Rosebrock, Inc. takes great pride in its outstanding team of experts. Our team is made up of project managers, engineers, estimators and a competent and hardworking field crew.

 

Regardless of your particular construction needs, we have the personnel to get the task done quickly and efficiently.

 

Meet some of our office staff below:

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Justin Groll, President / C.E.O. (Equity Partner)

  Direct: (419) 613-5006

  Email: justin.groll@rupprosebrock.com

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Scott Spengler, Executive Vice President / C.O.O. (Equity Partner)

  Direct: (419) 613-5011

  Email: scott.spengler@rupprosebrock.com

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TJ Thieken, Business Development

  Direct: (419) 613-5012

  Email: tj.thieken@rupprosebrock.com

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Laurie Hill, Accounting Manager

  Direct: (419) 613-5009

  Email: laurie.hill@rupprosebrock.com

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Jordan Cook, Project Manager

  Direct: (419) 613-5007

  Email: jordan.cook@rupprosebrock.com

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Brad Tymiak, Project Engineer / General Superintendent

  Direct: (419) 613-5010

  Email: brad.tymiak@rupprosebrock.com

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Mitch Grosjean, Project Engineer

  Direct: (419) 613-5008

  Email: mitch.grosjean@rupprosebrock.com

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​​​Chelsea Underwood, Administrative Assistant

  Direct: (419) 613-5013

  Email: chelsea.underwood@rupprosebrock.com​

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Additional Resources

 

   General Inbox (Invoicing)

      Email: rr@rupprosebrock.com

 

   Estimating Inbox (Bids)

      Email: bids@rupprosebrock.com

© 2025 by Rupp/Rosebrock, Inc.

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