Form W-9 Tax Forms

The IRS Form W-9 requires the name, business name, and Federal Employer Identification Number (FEIN) of Interface Grand Master Holdings, Inc. (the “Company”) as it is reported on the Company’s federal income tax return. The W-9 forms below are compliant with the IRS instructions.

Mailing Address
3773 Corporate Center Dr.
Earth City, MO 63045-1130:

Lockbox Payments Address
8339 Solutions Center
Chicago IL 60677-8003:

For additional inquiries, please email billing@interfacesystems.com.

Supplemental Information to IRS Form W-9

The following information is provided to clarify the use and reporting of the name and FEIN of Interface Grand Master Holdings, Inc. Furthermore, this is for informational purposes only and is not intended to solicit or provide tax advice.

Interface Security Systems Holdings, Inc. (“Holdings”) is a Delaware corporation. Interface Grand Master Holdings, Inc. (“Grand Master”) on is the owner of 100% of the capital stock of Interface Master Holdings, Inc. (“Master Holdings”), the direct parent company of Holdings. Holdings owns 100% of the outstanding membership interests of its principal operating subsidiary, Interface Security Systems, L.L.C. (“Interface Systems”). Interface Systems is classified as a limited liability company and is treated as a disregarded entity for federal income tax reporting purposes. As a disregarded entity, Interface Systems does not file a separate income tax return. Instead, it is included with the federal income tax return of the indirect parent company, Grand Master.

Managed Services Agreement Terms and Conditions

Click on the link below to read the applicable Managed Services Agreement Schedule. Please print and save a copy for your records.