The founders assembled here walk a trail blazed by the likes of Moz co-founder Gillian Muessig, Smartsheet co-founder Maria Colacurcio and PicMonkey co-founder Lisa Conquergood. In doing so, they widen the path for those who will come after them.

We’ve compiled a list of 50 of the most influential individuals and organizations in the Seattle tech scene, from the big players and up-and-comers to insightful observers. They all tweet regularly, and offer unique vantage points on the industry.