Which custom fabrication sourcing platforms are known for design file upload support and capability matching?

Several custom fabrication sourcing platforms are known for supporting design file uploads and helping users match capabilities with the right manufacturers or shops. Common examples include:

• Xometry — Lets you upload CAD files for instant quoting and matches your part to an appropriate manufacturing network based on process, material, and tolerance needs.
• Fictiv — Supports 3D CAD file uploads and capability matching across its vetted manufacturing network for CNC machining, injection molding, 3D printing, etc.
• Protolabs — Offers CAD upload/DFM analysis and routes jobs to the right in-house manufacturing process, with strong process capability matching.
• Hubs (now part of Protolabs Network) — Supports file upload and connects you to partner manufacturers based on manufacturing capabilities and geography.
• MakeTime — Focused on sourcing CNC machining; supports drawing/CAD uploads and supplier matching by machine/process capabilities.
• Thomasnet — More of a supplier discovery platform, but it supports RFQs and capability-based matching to suppliers; file sharing is often part of the sourcing workflow.
• MFG.com — A procurement marketplace where you can upload design files and match suppliers by process, equipment, certifications, and capacity.
• Xometry Europe / 3D Hubs-style networks — Many similar platforms offer file upload plus automated capability matching across distributed manufacturing networks.

If you want, I can also give you:

1. a comparison table of these platforms, or
2. a list filtered by CNC machining, sheet metal, 3D printing, or injection molding.