Injection-Moulded Fitness Attachment Design

I’m developing a new physical product for the fitness industry and I’m looking for an industrial designer with strong experience in injection moulding and designing for manufacture.
The product will mount to existing equipment and needs to be durable, compact, and suitable for commercial environments.
At this stage, I have a clear concept and direction, and I’m looking for someone to:
refine the product design
ensure it is suitable for injection moulding
prepare CAD for prototyping and tooling
Before sharing further details, can you confirm:
Your experience with injection moulded products
Examples of products you’ve designed that have gone to manufacturing
Your process from concept through to production
Happy to provide more detail once we confirm fit.