It's a surprisingly crowded space they are in, and I didn't get the impression they were seeing any growth, at least not enough for a VC backed company.

how familiar are you with the space they are in? can you name some of their competitors? from what i can tell, they were basically competing at the $999/mo price range for inventory management software to tie into Amazon/eBay/Shopify

Skubana, TradeGecko, Zoho Inventory, Infoplus, Dear Systems, CoreCommerce, Cin7, DSCO, Nexternal, and Unleashed are a few that immediately come to mind, but there are tons more out there. There are lots which are also an ERP or WMS rolled into one, but since Stitch Labs was not that I tired to list ones that were mostly or exclusively similar to Stitch Labs.