Passendo is the leading European platform commercialising newsletter inventory. Founded in 2016 by two digital advertising pioneers, our award-winning email ad server and SSP provides value for publishers and advertisers worldwide, with over 4,000 premium publishing house newsletter inventories across the world. Partnering with some of the world’s largest media publishers, we help them activate new incremental revenues in an existing and untapped media channel - in-email advertising - reaching new audiences to unlock new and exciting opportunities.