ShippingTree fully rebranded to Kase in March 2025 and now operates a network of 5 fulfillment centers across 5 states (California, Texas, Illinois, Ohio, and Pennsylvania), totaling roughly 1.08 million square feet. The company was acquired by Wisconsin-based logistics firm WSI (Warehouse Specialists, LLC) in February 2024, and the ShippingTree brand name was retired entirely in the rebrand.
Company Fast Facts
- Founded: 2015 (as ShippingTree)
- Current brand: Kase (ShippingTree rebranded to Kase in March 2025)
- Parent company: WSI (Warehouse Specialists, LLC), acquired ShippingTree in February 2024
- Headquarters: Fontana, California
- Fulfillment network: 5 fulfillment centers across 5 states (CA, TX, IL, OH, PA)
- Total footprint: approximately 1.08 million square feet across the Kase fulfillment network
- Country: United States
Headquarters
Kase, formerly ShippingTree, is headquartered at 14339 Whittram Ave, Fontana, California, which is also the site of its largest West Coast fulfillment center. The brand is backed by parent company WSI, a privately held logistics and distribution company based in Appleton, Wisconsin.
Note that the often-cited figure of more than 13 million square feet across 8 states refers to the broader WSI parent-company warehouse footprint, not the Kase fulfillment network. The Kase ecommerce fulfillment operation is the 5-facility, roughly 1.08 million square foot network described below.
Warehouse Locations
Kase operates 5 named fulfillment centers:
- Kase Fontana in Fontana, California (approximately 200,000 sq ft)
- Kase Sunnyvale in Sunnyvale, Texas (approximately 182,000 sq ft)
- Kase Chicago in Sauk Village, Illinois (approximately 496,000 sq ft, with rail access)
- Kase Columbus in Whitehall, Ohio (approximately 53,000 sq ft)
- Kase Northampton in Northampton, Pennsylvania (approximately 151,000 sq ft, in the Lehigh Valley)
Services
Kase provides omnichannel ecommerce fulfillment for direct-to-consumer and retail brands. Verified capabilities across its network include:
- Pick, pack, and ship order fulfillment
- Inventory storage and management
- Returns and reverse logistics
- FDA-registered and food-grade facilities for regulated and consumable products
- Rail-accessible distribution at the Chicago facility
Comparing ShippingTree to other 3PLs
ShippingTree, now Kase, is one of many U.S. ecommerce 3PLs, and the right fit depends on your order volume, product type, and where your customers are concentrated. A brand shipping regulated or food-grade products may value Kase's FDA-registered facilities, while a brand needing dense coast-to-coast coverage may want to compare its 5-state footprint against larger networks. Because fit varies so much by use case, it is worth comparing several providers before committing.
Fulfill.com matches ecommerce brands with vetted 3PLs based on your specific requirements, free of charge. Get started with a free 3PL match or learn how Fulfill.com helps you find the right 3PL.
Frequently Asked Questions
Is ShippingTree still called ShippingTree?
No. ShippingTree rebranded entirely to Kase in March 2025. The ShippingTree name was retired in the rebrand, and the company now operates as Kase under parent company WSI.
Who owns ShippingTree?
ShippingTree was acquired by WSI (Warehouse Specialists, LLC), a privately held logistics and distribution company based in Appleton, Wisconsin, in February 2024. It has since operated as the Kase fulfillment brand.
How many fulfillment centers does Kase have?
Kase operates 5 fulfillment centers across 5 states: California, Texas, Illinois, Ohio, and Pennsylvania, totaling approximately 1.08 million square feet.
Where is Kase headquartered?
Kase is headquartered in Fontana, California, the location of its largest West Coast fulfillment center.
Does the 13 million square foot figure apply to Kase?
No. The 13 million square feet across 8 states is the warehouse footprint of parent company WSI, not the Kase ecommerce fulfillment network, which is approximately 1.08 million square feet across 5 facilities.
