Yes, SynCommerce makes this possible.
Listings can be linked in SynCommerce in two ways.
2. The second where same products already exist on the connected stores before connecting to SynCommerce. Each of the listings on the different stores will be imported into SynCommerce as different products, and as such, will be seen as duplicates. SynCommerce allows you to easily merge these duplicates into a single base product which links to all the different listings and allow for automated synchronization.
Here's a tutorial on how to merge products.
Contact support at firstname.lastname@example.org for any further help.