Purchasing Teams

The Williamson County Purchasing Department is comprised of teams who specialize in certain areas of procurement and contracting. This allows end-users easier access to resources based upon individual need.

The Project Services Team services end-user departments with primary need for Construction Projects, Professional Services and Technology Projects and also handles Cooperative Purchasing Contracts, Interlocal Agreements and Administrative Support. The Contract Specialist who is part of the Project Services Team services all County Departments while assisting with Contract Renewals, Change Orders, Amendments and Vendor Performance Reporting.

The Support Services Team services end-user departments with primary need for Commodity Procurement and also handles Assets, Procurement Card Administration, Training and Testing of Purchasing Software for all County Departments.

Team Assignments

Purchasing Staff
Purchasing Agent
Joy Simonton, MPA, CPPB Purchasing Agent/Director 512-943-1555 joy.simonton@wilco.org
Kerstin Hancock, NIGP-CPP, CPPB, CPPM, CPP Deputy Purchasing Agent 512-943-1546 khancock@wilco.org
Project Services
Johnny Grimaldo, NIGP-CPP, CPPB, CPC Senior Purchasing Coordinator
(Team Lead/Professional Services)
512-943-1553 johnny.grimaldo@wilco.org
Kim Chappius Purchasing Specialist III
512-943-1478 kim.chappius@wilco.org
Andy Portillo Purchasing Specialist II
512-943-3860 andy.portillo@wilco.org
Dianne West Contract Specialist
(Contracts/Vendor Performance)
512-943-1692 dianne.west@wilco.org
Support Services
Brenda Fuller, CPPB, CPCP Senior Purchasing Coordinator
(Team Lead/P-card Admin)
512-943-1607 brendafuller@wilco.org
Mary Watson Purchasing Specialist III
512-943-1620 mary.watson@wilco.org
Erica Smith, NIGP-CPP, CPPB Purchasing Specialist III
512-943-1554 erica.smith@wilco.org
Vacant Purchasing Specialist II
(Front Desk/POs)