To pay an invoice using a standard check, please make the check out to “Somos, Inc.” and mail it to:
Somos, Inc. - Lockbox 28287
28287 Network Place
Chicago, IL 60673-1282
Please Note: Include the Somos® payment receipt located at the bottom of the first page of the invoice and include the account number on the check. If making payments to multiple accounts, please include all payment receipts and write all account numbers on the check.