How to do business with us

As a Texas public school district, we abide by laws set forth by the Texas Legislature pertaining to large purchases. The laws are designed to ensure that public funds are used wisely.

Register for iSupplier

iSupplier is a portal program designed to provide suppliers the ability to view a history of purchase orders and invoices and serves as GISD's supplier collaboration network.

Completing the registration process is used to establish a database of interested suppliers and does not guarantee approval to provide goods or services to the Garland Independent School District. Remember to attach your completed W9 before clicking the register tab.

To register as a supplier with GISD, please login to the iSupplier online registration portal then submit the items referred to under "Documents required for registration" via email to

Once all of the documents required for registration have been received and approved by the Purchasing department, you will receive an email with login information for the iSupplier network and be registered as a supplier for GISD.

Documents required for registration

iSupplier login and training

Registered suppliers may access iSupplier vendor functions including sourcing (electronic bidding) here.

Note: Oracle works best with the web-based products: Up to Internet Explorer 10 on Windows 7 or 8 (without Metro), (Internet Explorer 11 is currently not supported), Firefox ESR 24.x on Windows 7 or 8 (without Metro), Safari on OS X (number of certified combinations), Note: Google Chrome is not supported.

Forms and manuals

Conflict disclosure

If conflict exists, please complete the Conflict of interest questionnaire and return it to:

Garland ISD
Mr. Mark Booker
Director of Purchasing
P.O. Box 469026
Garland, TX 75046-9026

Disclosure of Lobbying Activities 

Complete this form to disclose lobbying activities pursuant to 31 U.S.C. 1352.

Construction Minimum Safety Program Guidelines

View the Garland ISD Construction Minimum Safety Program Guidelines Manual for all companies to consider when submitting their proposals.

Oracle bulk load catalog

As part of any solicitation you may be required to submit an Oracle bulk load catalog spreadsheet.

This spreadsheet includes information required to load a vendor's products internally in the district's database.

If the bulk load catalog is required, it will be so-noted in the solicitation (see current bids/specifications).

Invoices & payments

By law, the school district has 30 days after receipt of an invoice to present payment. It is the intent of the school district to pay all invoices as promptly as possible; however, by acceptance of a Garland Independent School District purchase order you have agreed to the 30 day payment policy.

All invoices are submitted to:

Garland Independent School District
Accounts Payable Department
P.O. Box 461228
Garland, TX 75046-1228