About Us

Mark Powley, President, grew up in a family owned sand & gravel operation.  After returning from mechanics school, Mark went to work at his family’s gravel operation.  He started in maintenance and worked himself up to Superintendent of the gravel operation.  He started selling sand & gravel equipment in 1998 and came to work at Loos Service & Supply, Inc. in 2001.  Mark has over 32 years of working knowledge in the aggregate industry.

Ron Witt, Outside Sales, came to work for Loos Service in the spring of 2006.  He previously worked at a gravel operation where he was involved in crushing, screening, dredging and equipment maintenance. Ron has over 30 years of experience in the gravel industry.

Jessica Murphy, Inside Sales and Administrative Assistant, joined Loos Service in the fall of 2013.

Jared Powley, Shop Manager, came aboard in 2015. He has a welding degree with years of experience.

Nicki Powley, Secretary/Treasurer, rejoined the company in January of 2018 after previously working here for 5 years.

We have over 100 years of experience in the sand and gravel industry to offer our customers.  We look forward to working with each of you.