Our experienced manufacturing group adapts commercial vaccine technologies to create USDA approved bacterial and viral products.

Pam McKennon

Pam McKenney

Virology Supervisor

Pam has more than 30 years of experience in both virology and bacteriology research as well as 5 years developing potency assays, and working in the viral autogenous area expanding isolates for vaccines. Her experience in these areas is a huge plus when working with existing as well as new isolates for production.

"I grew up on a family farm and my husband and I continue to farm with our son and his family. Knowing you are a small part of helping farmers care for their animals is very rewarding. I enjoy working with a group who have pride in what they do and dedication to get the job done well and on time.”

"I like to spend time with my family. Farming, camping or just hanging out. Especially with my grandson who makes everyone smile."

"I would have to say our cruise through the Panama Canal. We were able to visit 5 countries on the trip and thoroughly enjoyed our vacation."

Dayton Williamson

Dayton Williamson

Production Manager

Dayton has spent his entire career in the animal health industry, having spent time in Manufacturing for Merck Animal Health before joining the Cambridge team in 2016. As Production Manager, he ensures that various departments including Media Prep, Batching & Bottling, and Bacterial Culture operate efficiently to produce high-quality products that meet or exceed both company and regulatory standards.

"I spend time hunting, working as an active member of the Worthington Fire Department, and spending time with my wife Amanda, Step-daughters Breann and Alea, our son LeRoy, and our dog Chewbarka (Chewie)."

J Mahlberg New 2024

Jon Mahlberg

Chief Operating Officer

Jon has over 20 years of experience in animal health biologics. Prior to Cambridge, he worked at Newport Laboratories in Diagnostics, Research and Development, Quality Systems, and Manufacturing. He has held various management positions in Production, R&D, Technical Transfer, and Regulatory Affairs. Jon was the project leader for the first and only USDA-licensed modified live Haemophilus parasuis vaccine. His interests in lean manufacturing, process improvement, and KPI assessment tools will help to lead Cambridge Technologies’ manufacturing to a high level of excellence and customer satisfaction.

“We have a great team at Cambridge that I enjoy working with.”


Neil Robinson

Production Manager

Neil has been in the animal health industry for nearly 20 years. Before coming to Cambridge, he worked at Newport Laboratories as a lab supervisor and as a cost accountant. Having grown up on a farm it was an easy decision to pursue a career in animal health. When Neil isn’t in the lab, he spends time as a basketball skills trainer, helping players of all ages develop their skills.

“I like working for a company where the owners are local, and you get to know who you are making product for.”

"Basketball Skills Trainer."

"Traveling to Los Angeles in 2017 and spending two weeks assisting with on-court training of over a dozen NBA players."

Nathan Mahlberg

Nate Mahlberg

Site Director

Nate has built an extensive career in the animal biologics industry, with experience in various positions in manufacturing and quality departments. At Cambridge, his work has also been critical in attaining USDA product licenses and approval for regulatory requirements. Growing up on a farm raising pigs and beef cattle, and having an interest in microbiology naturally drew him into the career he started so many years ago. Nate previously worked at Newport Laboratories as Senior Manager, Biologics Quality Group.

“I like working with a great group of experienced people looking to provide solutions to our customers’ problems.”

"Gluing carpet strips to dock sections."

"Being outdoors with family."

Ian Fleace

Ian Fleace

Facility Supervisor

Ian joined Cambridge in 2016. As the Facility Supervisor, he directs a staff that maintains the buildings and grounds at our Sioux Center facility. Ian also oversees the maintenance and upkeep of equipment and all critical records or repair/installation and certifications/calibrations.


Shawntel Ryan

Quality Supervisor

Shawntel joined Cambridge in 2018. As a Quality Assurance Specialist, she follows standard operating procedures and aseptic practices to assist the lab supervisor in various projects.


Peter Simonson

Procurement/Cost Management Supervisor

Peter has been with Cambridge since 2018. As the Procurement/Cost Management Supervisor, he is responsible for purchase and inventory management of all raw materials in our vaccine production facility. Prior to coming to Cambridge, Peter was a professional actor and chef.

“I enjoy the speed of growth here, it keeps things interesting.”

"Playing Teddy Roosevelt in a one-man show and in the Medora Musical in the ND badlands for 5 months."

"Going to Amsterdam for fun, before acting in a musical in the Edinburgh Fringe Festival in Scotland."

Cody McDonald

Cody McDonald

Production Supervisor

Cody brings years of hands-on experience to Cambridge Technologies from his work as a Laboratory Technician in QC ELISA at Elanco Animal Health. Prior to that, he worked in the poultry nutrition laboratory at Iowa State University.

“Working at Cambridge allows me to see several parts of how the company works rather than just focusing on one job function.”

"Hunting and fishing. Hiking with my wife and two dogs. Smoking food for friends."

"My wife and I went to Backbone state park in eastern Iowa and stayed in a cabin for a couple of days. Enjoyed lots of hiking with our dogs and they were able to find several dropped deer antlers which they had been trained to do."

Jared Rademacher

Jared Rademacher

Shipping Supervisor

As the Shipping Supervisor at Cambridge Technologies, Jared is responsible for ensuring that all orders are picked, packed, addressed, and shipped correctly and in a timely manner. Prior to coming to Cambridge, he spent a number of years in broadcasting, including time as a sports play-by-play announcer which helped him hone his “think-on-your-feet” mentality that is needed when working with logistics. He also oversees incoming shipments, ensuring that the production facility has the correct amounts of ingredients and supplies on hand to deliver uninterrupted service. Jared enjoys the day-to-day challenges that can arise when working with couriers and weather and said his favorite part of being a member of the Cambridge team is seeing the dedication of his co-workers as they innovate together. His department strives every day to assist customers in ensuring their product arrives to its destinations as efficiently as possible.