My agency requires a W-9, EIN, and/or Tax ID Number. Can you provide me with this information? TherapyWorks Support Staff August 09, 2022 15:18 Updated Follow Need a copy of our W-9? Click here. Related articles Do you accept purchase orders? Do you offer discounts or group rates? What is the difference between the Leader's Guide and Intro Booklet? Do you ship internationally? What is the cost? I'm in the USA, how much will shipping cost for the products I want to order? Comments 0 comments Please sign in to leave a comment.