Yes, our Mobikul Marketplace System for Magento 2 Supports Magento 2.3.x, as can be seen on the store page of the product. Kindly refer here to our store.

For more details, kindly visit our store- https://store.webkul.com/Mobikul-Marketplace-Magento2.html

Note: Mobikul Marketplace System for Magento 2 also support Magento 2.2.x