Welch Allyn | 31,122 followers on LinkedIn. Welch Allyn is a part of Baxter. For nearly a century, Baxter has delivered on our commitment to save and sustain the lives of patients, working alongside providers to help them deliver the best care possible. We believe every person — regardless of who they are or where they are from — deserves a chance to live a healthy life, free from illness and full of possibility.