It depends on the type of product you're sourcing. I run Lumi.com which offers high redundancy to our customers, but we are a marketplace for packaging/collater

It depends on the type of product you're sourcing. I run Lumi.com which offers high redundancy to our customers, but we are a marketplace for packaging/collateral which are highly commoditized products. For manufacturing techniques that are more specialized doing this at scale can be much more challenging, because vetting, implementing training, QC, etc, has a high upfront cost. https://www.lumi.com/features/source https://www.lumi.com/features/source