Team Deppmann

We believe that our people are the cornerstone of our company. As such, R. L. Deppmann is 100% employee owned through our Employee Stock Ownership Plan (ESOP). Each employee who has a year of tenure owns a percentage of the total company stock.

Every employee has a vested interest in making sure the customer is satisfied and continues to do business with us. We live by our core values and understand why we continue to be a successful resource in the industry. You'll find our employee-owners doing everything they can to answer YES to your needs.

RLD Group Photo

Executive Team

Robert Van Goor


Bob is the President for the R.L. Deppmann. He has been with the company for more than 33 years and in that time has held various sales positions in the organization. His education is from Calvin College in Engineering and Davenport School of Business. Bob has had various industry involvement in numerous HVAC organizations over the course of his career. In his free time, he enjoys traveling and playing golf.

Norman Hall

VP of Strategic Solutions

Norman E. Hall is a Vice President for the Company and former President. Norm graduated from Wayne State University in Electrical Engineering. Over the past 40 years at RLD Norm has worked on design/engineering of systems, estimating, outside sales & management. Norm enjoys golf, playing with his grandkids, teaching eighth grade catechism classes, and volunteering at local food banks.

Josh Looper

VP of Sales

Josh earned his BS degree in Mechanical Engineering from Case Western Reserve University. He also holds a PE license. Josh has been an integral part of the Deppmann team for 16 years. In his spare time, Josh spends time with his wife and four daughters, plays golf, volunteers with local charities and plays an active role in his church.

Robert Schmitt

VP of Finance

Bob graduated from Michigan State University and initially worked for a large CPA firm.  From there, Bob worked in corporate finance roles before coming to R.L. Deppmann in 2005 where he is the Vice President of Finance. Bob likes working with wood and also enjoys the fall and tailgating at MSU football games.

Christopher Lieder

Senior Sales Leader

Chris Lieder is the lead salesman in the New Construction Department. Chris has held various positions within R. L. Deppmann over the last 31 years. He is an active member of the ASHRAE Detroit Chapter and the SMACCA. Outside of work, Chris enjoys golfing, fishing and hunting. When asked about Chris, customers note that “Chris is very thorough and makes sure we are satisfied with our order”.

Outside Sales

John Emmendorfer

New Construction Manager

John works in the new construction sales department in Northern Ohio. He has been in the HVAC industry for approximately 25 years, concentrating on the hydronic industry for the last 15 years. When not at work John enjoys golfing or spending time with his family.

Kyle Wefing

Engineering Manager

Kyle is a the Engineering Manager for R.L. Deppmann. He started with the Company in 2017 as a Sales Engineer and has been in the HVAC industry for ten years. In his free time, he enjoys snowboarding, traveling to see friends and spending time with his family.

Tim Mitzel

Package Division Manager

Tim has a Bachelors in Mechanical Engineering from the University of Notre Dame, and holds a Professional Engineer license. Tim worked for a mechanical contractor for 10 years before joining R.L. Deppmann in 2012. Tim spends time with his wife and four children and plays as well as coaches hockey.

David Chwalibog

Outside Sales Representative

Dave has 20 years in the building science industry with emphasis on energy efficiency. He is a 1989 graduate of Michigan State University in Marketing. When not at work, Dave likes to hunt, fish, coach and mentor junior football players. He has been married 25 years and enjoys spending quality time with his 4 children.

Tim Dawson

Outside Sales Representative

Tim is a graduate of Northern Michigan University. He has been in the industry since 1997, working in distribution and now new construction. Tim is committed to continually grow his knowledge in the industry by actively pursuing addition training and educational opportunities. Tim enjoys hunting, fishing and working with dogs. He has titled multiple dogs over the years.

Todd Dopkowski

Outside Sales Representative

Todd has over 20 years of customer service and sales experience. He has been with R.L. Deppmann since 2011. Todd has worked in various positions including Customer Service, Estimating, and Outside sales. In his spare time Todd enjoys spending time outdoors fishing, hunting, camping or hiking with his dogs. Customers note that “Todd is very responsive and always goes the extra mile to help”.

David Dyer II

Outside Sales Representative

David has been with R.L. Deppmann since 2011 as an Outside salesman in the Distribution segment. Before joining R.L. Deppmann, David worked in pharmaceutical and manufacturing sales. David enjoys spending time with his wife and daughter, coaching his daughter’s soccer team and playing golf. When asked about David, customers say, “David follows thru with everything – going above and beyond for us”.

Mark Fine

Outside Sales Representative

Mark has worked at the R.L. Deppmann Company since 2001. He graduated from Lawrence Technological University with a Bachelor of Science in Mechanical Engineering. He takes pride in his work and values the close ties with his customers. Mark is supported by his wonderful wife, Lisa and his beautiful children Kailee, Joshua and Jessica. For pleasure, he enjoys boating, golfing, concerts and trips with his family.

Paul Mylonas

Outside Sales Representative

Paul represents the R.L. Deppmann Company as a New Construction sales representative. Paul has been in the in the HVAC industry for over 8 years. In his free time Paul enjoys speeding time with his family as well a coaching his children’s baseball and basketball teams.

Nathan Oliver

Outside Sales Representative

Nathan graduated from Western Michigan University in 1990 with a construction management and technology degree. After graduation, Nathan worked in the construction industry and has been with R.L. Deppmann for the last 18 years. Nathan enjoys mountain biking, snowboarding, going to concerts and drinking Michigan craft beer.

Gerald Potapa

Outside Sales Representative

Gerry has been in the industry for over 40 years. He worked as a consulting engineer from 1977 until 2010 when he joined R.L. Deppmann. He enjoys spending time with his family, hunting, fishing and all outdoor activities. He is also a past President of the Band Boosters at his daughter’s high school.

Paul Prentice

Outside Sales Representative

Paul is a graduate of the University of Michigan with a degree in Mechanical Engineering. He joined R.L. Deppmann in 2005 as a sales engineer. Prior to R.L. Deppmann, Paul spent 22 years as a sales engineer assisting engineers and contractors in product application. Paul enjoys time with his family biking, golfing, skiing and traveling.

Jim Raley

Outside Sales Representative

Jim went to college for Business Management, then HVAC. Prior to working at R.L. Deppmann, Jim performed test and balance of air & hydronic systems of “clean rooms” for the microelectronic industry. Jim’s recreational interest include cross country and downhill skiing, motorcycling, golf and the beach.

David Roberts

Outside Sales Representative

David graduated from Ferris State University with a Bachelor’s Degree in HVAC/R Engineering in 2008. He has worked in the HVAC/R industry for 15 years. His customers would tell you that he is a great communicator and is dedicated to the success of every project. David enjoys spending time with his family while hunting and fishing throughout Michigan.

David Shugars

Outside Sales Representative

Dave has been around the HVAC business his entire life. Dave was a heating manager for 10 years at Bond Supply. He then became a Sales Engineer at R L Deppmann (25+ years). Dave is a LEED-AP, a Past ASHRAE Chapter President, Region V CTTC Chairman, Society Communication Coordinator for CTTC. Dave enjoys camping, cooking, family and golf.

Mike Singer

Outside Sales Representative

Mike graduated from The University of Akron with a Bachelors Degree in Mechanical Engineering. Prior to joining the R.L. Deppmann team, he spent 8 years working in the biomedical industry. In his free, time Mike enjoys the outdoors and spending time with his wife, daughter, and dog.

Richard Smiecinski

Outside Sales Representative

Rick entered the industry in 1983 and has worked as an estimator for a piping contractor and as sales for a competitive supplier prior to coming to R.L. Deppmann in 1998. He is an outside salesman in the New Construction segment, has a Bachelors degree in HVAC Engineering from Ferris State University and enjoys spending time in Caseville with family and friends.

Rhonda Cotleur

Project Coordinator

Rhonda attended the Ohio State University and has twenty-two years of combined administrative and accounting experience in sales, construction and engineering industries. In her free time she enjoys reading, running, golfing and spending time with her family. When asked about Rhonda, customers say, “Rhonda responds to my needs quickly and efficiently”.


Matthew Overweg

Estimation Manager

Matt has been with R. L. Deppmann since 2007. He holds an HVAC/R Engineering Degree from FSU and was a Senior Estimator for 10 years. Matt enjoys time camping with his family and visiting amusement parks. When asked about Matt, customers say that “Matt is hard-working, and determined. His motivation comes from the heart.”

William Kritzman


Bill started in the industry in 1984 with the W.T. Andrew Company in Highland Park, MI. Ten years later, Bill worked for a manufacturers rep sales agency selling pumps, boilers, plumbing and hydronic engineered HVAC specialties. Today, Bill continues to support customers as an Inside Sales team member. He enjoys golf, hunting, fishing and spending time with his family.

Randy Kruger


Randy graduated from FSU with a Bachelor’s Degree in HVAC/R Engineering in 2012. In his spare time, he likes to go camping, fishing and enjoying the outdoors. Randy also likes to spend time with his wife and dogs. Recently, a customer noted that “Randy is a helpful, knowledgeable employee who will work hard to make sure our needs are met”.

Tyler Watkins


Tyler attended Cuyahoga Community College and the University of Akron where he earned a degree in Law Enforcement. While working towards his degree Tyler developed a passion for sales. He has five years of sales & customer service experience. In Tyler’s free time, he enjoys being on the golf course and spending time with his family and friends.

Brook Botbyl


Brook graduated from Ferris State University with a Bachelor’s Degree in HVAC/R Engineering in 2018. Before graduating, Brook worked for multiple mechanical contractors. In his spare time, he enjoys spending time outdoors golfing, disc golfing, fishing, and hunting. Brook is new to the industry and eager to learn his role on the inside sales team!

Tyler Lieder


Tyler has been working at Deppmann since 2014. His previous experience is primarily in the plumbing industry. During his non-working hours, Tyler plays in a hockey league and a softball league. Customers note that “Tyler is reliable and helpful when it comes to getting us our product and understanding the product”.

Caitlin Filipski


Caitlin is a member of the Inside Sales Team, and has been with R.L. Deppmann since January of 2014. Caitlin enjoys being outdoors, especially fishing and kayaking. She prides herself in learning new skills, both in and out of work. Customers say that “Caitlin has a very determined attitude. If she does not have the answer you are looking for or the ability to solve a problem, she will make it her mission to figure it out and get it done”.

Sandra Brunetti

Estimation Support

Sandi has been a member of the R. L. Deppmann team since 1997. She has had various responsibilities in the sales, construction and engineering industries. In her free time she loves being outdoors and spending time with her grandchildren. Customers are quick to note how dependable and efficient she is in getting their questions or concerns handled.

Jessica Zarecki

Estimation Support

Originally from the Chicago area, Jessica found her new home in Grand Rapids after receiving a BBA in Management from Grand Valley State University in April of 2017. She first joined our team in December of 2017 as part of our Administration staff, and now works for Inside Sales. In her spare time, she enjoys exploring the Grand Rapids restaurant and brewery scene, as well as visiting with friends and family.

Customer Service

Michael Kennedy

Customer Service Manager

Mike holds a Bachelors of Applied Sciences in Heating, Ventilation, Air Conditioning / Refrigeration Technology from Ferris State University. He has been in the industry since 2005, making him a valuable resource for his customers. His enjoys golfing, being outdoors, and spending time with his family. Mike is known for continually “exceeding expectations” with his customers.

Dennis Alexander

Senior Customer Service Representative

Dennis has been with R.L. Deppmann since 2001. He also spent 5 years with the previous Ohio Bell & Gossett Rep before R.L. Deppmann obtained the Northern Ohio territory. Dennis has over 19 years combined experience with Bell & Gossett product. After work Dennis enjoys biking, exploring the surrounding lakes in his kayak and spending time with his grandchildren.

Daniel Ondersma

Senior Customer Service Representative

Dan has been with the R.L. Deppmann Company for 39 glorious years! He holds a BS in Business Economics from Calvin College, Grand Rapids. Dan is a Senior Customer Service Representative in our Grand Rapids branch. Outside of work, Dan is an aquarist and member of the Grand Valley Aquarium Club. He has four aquariums at home with various species of tropical fish.

Scott Tilley

Senior Customer Service Representative

Scott has a Bachelor of Science Degree in Telecommunications: Sales Management. He as 20 + years working in both Inside & outside sales. Scott joined R.L. Deppmann in 2011 as a member of customer service and inside sales. Scott loves spending time with his wife and four kids, running, playing guitar & singing.

Jerry Kopasz

Customer Service Representative

Jerry started out his career in 1968 (fresh out of high school) in counter sales. Over the years, he worked his way through the warehouse in into shipping and receiving. In 2008, Jerry moved into the Customer Service department. In Jerry’s spare time he enjoys his ten grandchildren. Customers rely on Jerry stating that “Jerry is someone we can turn to when we need help”.

Gary Rutman

Customer Service Representative

Gary has a degree from the HVAC program at GRCC. He has extensive manufacturers training of R.L. Deppmann products lines. Gary is a member of the Customer Service Department. Gary enjoys socializing with family and friends, gardening and fitness.

Kevin Paszt

Customer Service Representative

Kevin has 30 years of experience in the refrigeration and HVAC industry. During his career, he has worked various segments of the business including technical, education, management and customer service. During Kevin’s spare time, he enjoys spending time with his family, hunting, fishing, and camping.

Chris Durfee

Customer Service Representative

Chris started working with R.L. Deppmann in 2017 and brings with him 10 years of experience in the HVAC/R wholesale industry. Six of those years were spent at the counter sales position. Chris is well known for his dedication to provide the best support he can to every customer. Customers note that Chris is eager to quickly find an accurate solution to any problem the customer may face.

Kyle Borstler

Customer Service Representative

Kyle started working with R.L Deppmann in the spring of 2018. He hold a Bachelors of Applied Sciences in Heating, Ventilation, Air Conditioning, Refrigeration Engineering Technology and Energy Management. Kyle has many years of experience in the customer service industry and is excited about working out of the Novi branch. In his spare time Kyle enjoys spending time with friends and family as well as golfing.

Kailee Fine

Customer Service Order Entry & RMA Specialist

Kailee is currently working towards her Associates Degree at Oakland Community College.  She joined R.L Deppmann in 2017 and works in the Customer Service department. In her spare time enjoys traveling, watching Netflix and spending time with her family. When Kailee interacts with a customer or supplier, they say that she is very helpful and friendly.

Startup and Warranty

Brad Notter

Startup & Warranty Manager

After receiving his BSEE from Saginaw Valley State University in 1996, Brad started working for Deppmann. During his career here, he has been involved with many interesting and unique projects and after being on the sales team for over 20 years, Brad has taken over the Startup and Warranty Manager position in 2017. During Brad’s non-working hours, he spends time with his family, travels, and shows his classic car at cruise-ins and car shows during the summer.

Michael Belanger

Service Technician

Mike functions as a Service Technician in the Startup and Warranty Department. He joined R.L. Deppmann in 1999, after working as a HVAC technician in the hospital industry. During his free time, Mike enjoys road cycling. When asked about Mike, customers say, “Mike is a great teacher and takes the time to educate us regarding maintenance on the equipment and products”.

Ron Bohnak

Service Technician

Ron is currently a Startup and Warranty Technician. He brings over 20 years of combined wholesale and field experience. Ron has a serious love and passion for the HVAC business. He enjoys helping others and anything that involves a challenge or problem solving. In his spare time, Ron enjoys playing basketball, cornhole, billiards and darts.

Shane Lombard

Service Technician

Shane is currently a Startup and Warranty Technician. He has successfully completed multiple Bell and Gossett training courses, Aerco technical training and Tower Tech training. Shane likes to golf in the summer and bowl in the winter. When asked about Shane customers say that they are “very pleased with the support Shane gives” them.

Dillon Neale

Service Technician

Dillon has an Associates Degree in Graphic Design and has been with the R.L. Deppmann Company for 13 years. He started in the warehouse department and over his tenure, earned his way to a Startup Warranty Technician role. During his free time, Dillon enjoys camping and supporting all Detroit sports teams.

Dylan Stark

Service Technician

Dylan received his degree in HVACR from Ferris State University in 2002. Since then he has worked for 15 years as a commercial/industrial HVAC service technician. Dylan joined our start up and warranty team in 2016 to expand our support for our boiler lines. In his spare time he enjoys spending time with his wife and their 3 young children. They spend their free time camping, traveling, hunting, skiing, and enjoying life!

Paul Starkey

Service Technician

Paul has 35 years in the HVAC industry. He has a high-pressure boilers license & 3rd class refrigeration license. Paul graduated OCC with an HVAC degree. He is a one year local 547 stationary engineers. Paul is certified in back-flow repair and in medical gas brazing and installation. Paul enjoys hunting, fishing, biking, camping and working around the house.

Casey Van Dam

Service Coordinator

Casey joined R.L. Deppmann in 2015 as a phone operator. She moved into the Startup & Warranty department as the Service Coordinator in 2017. Casey enjoys camping, bonfires and anything mother nature has to offer.  Casey’s happiest times are spent with her granddaughter Athena and her fur babies.


Jeff Rathgeb

Purchasing Manager

Jeff started working at R.L. Deppmann in 1984 in the shop.  Over the years at R.L. Deppmann, Jeff has worked in inside service and customer service before moving to the purchasing & warehouse manager.  Jeff likes to travel in his motorhome, follow NASCAR racing & spend time with his grandkids.

Richard McInnes

Purchasing Assistant

Rich has been a Purchasing Agent with the R.L. Deppmann Company since 2000. He holds a Bachelor’s in Merchandising Management from Michigan State University. During his free time, you will find Rich biking, playing basketball, and cooking. Customers enjoy interacting with Rich stating that “Rich answers all questions and concerns quickly and correctly”.

Warehouse and Inside Service

Brian Kelley

Warehouse Supervisor

Brian is driven to figure out how things operate. He has a knack for getting into a project and really learning how the ins and outs of the system. Brian is an avid disc golfer and enjoys spending time with his daughters in the outdoors (watching them learn the game of disc golf). He also enjoys working on cars and home improvement projects.

Dan Smith

Warehouse Team Leader

Dan has been working at R L Deppmann since 2010. He draws his knowledge and experience through senior employees that help to make being an employee here both enjoyable and educational. Outside of work, Dan enjoys time with family and friends. He has a large interest in art, music and exercise.

Ronald Jones

Inside Service

Ron has 20 years experience in the R.L. Deppmann Inside Service department. When he is not working he usually can be found working in his garage on his vehicles and lawn equipment. Our customers note that “He is a great person, knowledgeable and professional in choosing the correct parts for their job and always has a smile”.

Nick Lindon

Inside Service

Nick holds a two-year certificate for HVAC and a one year certificate for welding from the William D. Ford Career Technical Center. His experience includes forklift, warehouse, maintenance, and HVAC applications. Nick loves to enjoy the outdoors through fishing and hunting. He also likes to go to the movies, the casino, sporting events and concerts.

Matthew Helms


Matt worked in a variety of industries before joining R.L. Deppmann in the warehouse department. His experience includes residential construction, irrigation systems, maintenance and landscaping. Matt’s hobbies include amateur disc golf, amateur pocket billiards, camping and canoeing.

Steve Mama


Steve joined R.L. Deppmann in November 2016 and works in the warehouse at our Novi location. Steve has experience in logistics and manufacturing. He’s currently going to school to get his motorcycle technician certification. In his spare time he likes to read comic books, watch movies, listen to music, practice Brazilian jiu-jitsu, ride and fix his motorcycles.

Corporate Services

Jan MacDonald

Credit Manager

Jan boasts 40 years of working in the Deppmann Credit department. She has a Master’s degree in Business and a Paralegal degree. Jan holds seven advanced certificates in Quality and is a past chairperson for the Detroit Chapter of ASQ. Jan is very active in the community, within her church and with several charities. She takes part in the Relay for Life, Habitat for Humanity and All About Animals Rescue.

Tim Miller

IT Manager

In the 24 years that Tim has been with R. L. Deppmann, he has worked in various areas of administration and sales, including customer service, estimation, and direct sales support. This background has proven valuable in his current role as IT Manager. As IT Manager, Tim supports every aspect of the business by managing and continually improving the R.L. Deppmann Technology strategy.

Nicole Tilley

Human Resources Manager

Nicole graduated from Eastern Michigan University with a Bachelors in Business Administration. Nicole joined R.L. Deppmann in 2005, she has worked in various corporate roles and is currently the Human Resources Manager that is responsible for all Human Resources and Marketing functions. She obtained her SHRM-CP Certification in 2015. Nicole enjoys spending time with her husband, children and traveling.

Accounting and Credit

Nadia Adam


Nadia graduated from Dorsey Business School/ Accounting in 1999. She worked at QEK Fleet management for the Big 3 in the Automotive field for 8 years in Accounts payable and Accounts Receivable/ Billing department. Nadia joined R.L. Deppmann in 2007 in the accounting department. In her free time, she enjoys crafts, swimming, shopping, and miniature golf.

Cyndi Scott


Cyndi has worked in various accounting and human resource fields since graduating from college. In Cyndi time outside of the office, she cares for her aging parents and their needs as well as her home, non-working time is a fantasy.

Team Support

Mindy Boroska


Mindy is a proud Wayne State alum, holding two degrees from the University. She has been assisting many departments of R.L. Deppmann at the administrative level since 2016. When not working at RLD, Mindy enjoys spending time with her two nieces and nephew, international travel, and attending concerts with her friends.

Deborah Freel


Debbie spent 27 years in the Mortgage Banking Industry before changing gears in 2008 when she began working for R.L. Deppmann. Currently, Debbie coordinates training between Deppmann clients and the factories. Customers appreciate Debbie stating that she makes them “feel valued” and she “goes out of her way to assist me with my needs”.

Holly Wilson


Holly holds an Associate of Arts degree. She enjoys exploring new hiking trails with her dogs. Holly also loves to cook and watch Steelers football. When asked about Holly, customers say, “We always enjoy speaking to Holly when we call into R.L. Deppmann”.

Sydney Hodge


Sydney received her Associate of Arts degree from Grand Rapids Community College. She is planning on heading back to school in the Fall of 2019 to finish up her bachelor degree. She worked in the banking industry for 2 years before she begun working at R.L. Deppmann. In Sydney’s spare time she loves to spend time with family and friends. Her favorite things to do are in the summer time, where she loves boating, camping, and going to the beach.