| Sr No. | Office | Address |
|---|---|---|
| 1 | Head Office | 15460 Laguna Canyon Road, Irvine, CA 92618, USA |
| 2 | Billing/Lockbox Address | McGraw-Hill School Education Holdings, LLC BMO Harris Bank, N.A.
Lockbox 71545,
Chicago, IL 60694-1545 Contact No.: +(866) 253-5016 Email: k12orders [at] aleks [dot] com Fax No.: (714) 619-6898 |