We are hard at work on a new website for 2023. Look for something fresh, arriving February 1!

growing. packing. shipping. marketing.

Keystone is a leader in the Produce industry, providing our customers with authentic sweet onions 52 weeks a year! We grow, pack, ship, and market sweet onions from many geographical locations to provide our valued customers with sweet onions that are truly sweet!

From all of us at Keystone, Happy New Year!

our commodities

our history

Established 1977

Bob Evans and Marvin Carbaugh founded Keystone in 1977 with the goal of providing exceptional marketing services to local apple and peach growers throughout the mid-Atlantic region. In the years to follow, Bob, Marvin, and new owners Kurt Schweitzer, then Marty Kamer, expanded to achieve global reach for Keystone. At the beginning of 2017, Keystone Fruit Marketing merged with Progressive Produce, uniting two companies with compatible values and goals. Today, the current owner, Marty Kamer, along with his team members, continue to evolve with our growers and customers and are excited about the future growth of the business in the years to come.

Contact Us

Want to get in touch? Let us know which commodity you are interested in, or provide us with whatever question you might have. We’ll be sure to direct your information to the appropriate Keystone team member and address your need as quickly as possible. We’re looking forward to hearing from you!

Our locations

Greencastle, PA

Northwest Office
Walla Walla, WA

Southeast Office
Vero Beach, FL

Southwest Office
Los Angeles, CA