About our company
21st Century SCIENTIFIC
Made in the USACoeur d’Alene, Idaho
Quality mobility products since 1978.
BOUNDER and BIG BOUNDER power wheelchairs are made in the USA at our facility in Coeur d’Alene, Idaho. Each chair is custom built with a focus on durability, practical engineering, and the needs of the individual.
Our purpose is straightforward: build dependable mobility equipment that helps people stay active and enjoy life.
Our approach
The person comes first.
No two power wheelchair users have exactly the same needs. Seating, controls, daily routines, and the places a person needs to go all influence how a chair should be configured.
We work with users, dealers, and therapists as needed to understand those requirements. That collaboration helps guide the details of each chair, from its dimensions and positioning features to the controls and accessories that make it useful in daily life.
Listening to customers has shaped our company from the beginning. It remains central to how we approach our work today.
American manufacturing
Made in the USA.
Built in Idaho.
A power wheelchair is equipment its owner relies on throughout the day. We place a strong emphasis on durable construction, using TIG-welded steel frames and rugged drive systems as the foundation of our chairs.
Manufacturing in Coeur d’Alene brings that work together at our Idaho facility. Each BOUNDER is custom fabricated for its owner, combining a strong foundation with choices in seating, positioning, and controls.
Serviceability matters, too. Features such as the sliding battery box reflect a practical focus on maintaining equipment over the course of its use.
Our history
From wheelchair components
to complete power chairs.
Ronald E. Prior, Ph.D., founded 21st Century Scientific in Los Angeles, California. The company’s early products addressed practical needs in power mobility. As customers asked for additional capabilities, the product line grew—eventually leading to the complete BOUNDER power wheelchair.
- 1978
A beginning in power mobility
The 1-BB Bare Bones power wheelchair motor kit was introduced.
- 1981–1982
The product line grows
A Group 27 sliding battery box was followed by electric power brakes, horns, lights, and a rear-view mirror.
- 1985–1987
Responding to customer requests
A Universal Hand Control and Circuitry Module expanded the range of components.
- 1988
The BOUNDER takes shape
Frames, wheels, and upholstery brought those components together into a complete power wheelchair.
- 1992
BIG BOUNDER debuts
BIG BOUNDER was introduced to address the mobility needs of bariatric users.
- 2000
The H-frame redesign
A new H-frame design gave BOUNDER a more modern appearance.
- 2006
Expanded outdoor capability
The optional Off-Road Package expanded BOUNDER’s capabilities on unpaved terrain.
- 2020
New electronics options
The addition of LiNX and R-net electronics broadened the selection of wheelchair controls.
Today, that history continues in Coeur d’Alene, Idaho, where we build BOUNDER power wheelchairs for people with a wide range of mobility needs.
The products behind our name
One approach.
A range of individual needs.
Our product family includes BOUNDER power wheelchairs and BIG BOUNDER bariatric models. Across the range, our emphasis remains the same: durable construction and a chair configured for its owner.
Available choices include seating and positioning systems, specialty controls, and accessories. Selected BOUNDER models can also be configured with an Off-Road Package for users whose routines include outdoor terrain.
Product details are available on our wheelchair pages.
We welcome your questions.
Whether you use a power wheelchair, assist someone who does, or work as a dealer or clinician, we would be glad to hear from you.