The Best Team in the Business

John Bruce

Operations Manager

John Bruce, Preferred Pumpís Operations Manager, joined Preferred Pump LLC shortly after its inception in 1998. Preferred Pump was created solely for Eli Lilly and Eli Lilly subcontractors.  Over 30 years experience in the pump industry with positions held beginning in manufacturing, and production that progressed to more complex positions of purchasing, pump specification, selection, application, and Project Management.  Currently John services the contractual needs for our pharmaceutical target as well inside and outside technical support for Preferred Pump.

John’s email address is

Bryan E Kesterson

Outside Account Manager

Bryan joined the Preferred Pump team in 2019 and brings over 30 years mechanical experience. He gained his experience from the corn refinery business at A.E. Staley/Tate and Lyle and the pharmaceutical business at Eli Lilly/Evonik. During Bryanís career, he has held roles as a millwright, maintenance mechanic, reliability tech, and reliability engineer. Bryan currently spends his time consulting on new pumps supplied and troubleshooting issues with older pumping systems at Eli Lilly.

Bryan’s email address is

Dawn Bruce

Accounts Associate

Dawn Bruce joined the Preferred Pump team in 2011. Dawn's duties include purchasing, accounts payable and receivable, order entry, quotation, and order status. Currently Dawn is in progression to provide detailed inside technical support for Preferred Pump.

Dawn’s email address is