I don't have a webshop, but I'd like to sell on marketplaces via ChannelEngine. Is this possible?

Yes!

Many brands, wholesalers, and traders use ChannelEngine to sell online, without having a webshop. The only requirement is that you are able to provide a digitally up-to-date range of products. For instance, we are able to upload this product information directly from your ERP or stock management system. If necessary, you can enrich product information through ChannelEngine using texts, specifications and images. Contact us to find out the options for your specific situation.