“We started using ThunderDog Delivery to pick up our outgoing mail everyday after our old courier became unreliable. We have been using ThunderDog since September of 2018. ThunderDog shows up everyday right on time. I work for a big organization that sends out a lot of confidential and time sensitive mail. I would recommend ThunderDog Delivery to anyone. I am happy to say that ThunderDog is the official courier of the Seattle Mariners."