Service Area
Sales Engineer
![Ralph Charbonneau - RTP Company Ralph Charbonneau](https://www.rtpcompany.com/wp-content/uploads/Ralph-Charbonneau.jpg)
Ralph Charbonneau
Wheeler, WI
Phone: (715) 658-1801
E-mail: rscharbonneau@rtpcompany.com
Customer Service Representative: Dana De La Cruz
(see contact info below)
Sales Engineer
![John Carpenter - RTP Company John Carpenter](https://www.rtpcompany.com/wp-content/uploads/John-Carpenter.jpg)
John Carpenter
Menomonie, WI
Phone: (715) 308-8779
E-mail: jcarpenter@rtpcompany.com
Customer Service Representative: Chelsey Brosig
(see contact info below)
Associate Sales Engineer
![Sydney Clausen - RTP Company Sydney Clausen](https://www.rtpcompany.com/wp-content/uploads/Sydney-Clausen.jpg)
Sydney Clausen
Winona, MN USA
Cell: (414) 333-7343
E-mail: sclausen@rtpcompany.com
Customer Service
![Dana De La Cruz - RTP Company Dana De La Cruz](https://www.rtpcompany.com/wp-content/uploads/Dana-De-La-Cruz.jpg)
Dana De La Cruz
Winona, MN USA
Toll Free: 1-844-453-5097
E-mail: ddelacruz@rtpcompany.com
Customer Service
![Chelsey-Brosig - RTP Company Chelsey Brosig](https://www.rtpcompany.com/wp-content/uploads/Chelsey-Brosig.jpg)
Chelsey Brosig
Winona, MN USA
Toll-Free: 1-844-703-2640
E-mail: cbrosig@rtpcompany.com
Technical Service
![Mike Lockhart - RTP Company Mike Lockhart](https://www.rtpcompany.com/wp-content/uploads/Mike-Lockhart.jpg)
Mike Lockhart
Phone: (224) 227-0204
Email: mlockhart@rtpcompany.com