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? I'm in the USA, how much will shipping cost for the products I want to order? What is the difference between the Leader's Guide and Intro Booklet? Do you ship internationally? What is the cost? Comments 0 comments Please sign in to leave a comment.