Built to Lift.
Trusted for 50 Years.
Custom-made synthetic slings, round slings, and cargo control built in the U.S.A. and proven through decades of performance.
Legacy &
Craftsmanship
About OSP Sling
For more than 50 years, OSP Sling Products has been manufacturing high-quality synthetic lifting slings, cargo nets, and load-control solutions for industries that depend on safety and reliability.
Family-owned and now in its fourth generation of leadership, our foundation has always been built on craftsmanship, consistency, and customer service.
From our facility in Sequim, Washington, we produce every sling with domestically sourced nylon and polyester and partner with trusted suppliers to ensure unmatched quality from start to finish.
Our Capabilities
At OSP Sling, we don’t just BUILD slings.
we build confidence in every lift.
Custom Manufacturing
Every sling is made to order to meet your exact specifications.
Certified Testing
Our in-house 600,000-lb. ASTME-4 certified Proof-Cert test machine ensures every product meets the highest safety standards.
Complete Product Line:
Why Choose
OSP Sling
Made in the U.S.A.
50 Years of Proven Experience in manufacturing and design
In-House Testing & Quality Control for every product
Responsive Service: real people, real support, every time
“We take great pride in the quality of our entire product line. Quality isn’t just something we measure — it’s something we live by.”
All OSP Sling products are designed and tested to meet or exceed ASME B30.9 and WSTDA standards.
Our in-house testing capabilities allow us to verify load ratings, elongation, and performance, so you can lift with confidence.
Safety &
Certification
Ready to Build
Your Next Sling?
Let’s talk about your specs and start your next project.
Made in the USA • Built for Industry • Proven for Generations