The EU ECO-TANDEM project is a cross-border program which aims to identify key challenges in the European Tourism value chain with specific regard to eco-sustainability and green transition, matching European Tourism SMEs and innovators (i.e. startups, innovative SMEs) to tackle ECO-TANDEM challenges through the so called “TANDEM™ cooperation”. The Project’s main goal is to boost eco-sustainable Tourism development, and capacity of Tourism SMEs through transnational cooperation and knowledge/tech transfer. The project is implemented from 2020 to 2023 and its target population are: traditional tourism SMEs (hotels and similar accommodation holiday and other short-stay accommodation camping grounds, recreational vehicle parks, and trailer parks travel agencies, tour operator reservation services and related activities), innovative startups, or business entities working in the eco-sustainable field. Its main results: build powerful connections in the tourism industry for boosting sustainable innovations industry-specific skills improvement around standards for sustainability in travel and tourism build sustainability capacities of professionals in the tourism value.