Effective Friday, May 1, 2020, county buildings will re-open to the public. Should you need to speak to purchasing staff or schedule an appointment, please contact 972-548-4165 or Purchasing will continue to operate by appointment only until further notice.

Thank you for your understanding.

In a continued effort to operate safely and avoid person-to-person interaction to prevent the spread of COVID-19, Collin County Purchasing will temporarily only accept IFB, RFP, RFQ and Quote submittals electronically in Ionwave (eBid) or via parcel carrier until further notice. Please do not deliver your solicitation response in person.

All bid openings will be completed on schedule and witnessed by Collin County Purchasing staff to ensure all procurement statutes, policies and state laws are followed.

Appointed Official​

Michelle Charnoski, CPPB
Purchasing Agent

Collin County Purchasing
Collin County Administration Building
2300 Bloomdale Rd., Suite 3160
McKinney, TX 75071


972-548-4165 (McKinney)
972-424-1460 ext. 4165 (Metro)
972-548-4694 (Fax, Main Office)
972-547-5305 (Fax, Justice Center Remote Site)
8 a.m. - 5 p.m., Monday - Friday

Staff Directory

To provide feedback to Purchasing, send an email to

Our Mission

The Collin County Purchasing Department provides a unified purchasing system that ensures integrity and fairness, with centralized responsibility for oversight of solicitation, vendor selection, negotiation, award, contract management, reporting, and disposal of surplus property for the benefit of Collin County agencies.

The department is dedicated to providing and managing for our agencies the most effective and efficient procurement processes and procedures for the acquisition of quality goods and services in support of Collin County's mission and goals. Our focus is to provide the best possible quality goods and services, at the best value, to the citizens of Collin County while providing qualified suppliers with open and fair competition for County business.


Professional Affiliations

In order to do the best possible job for the citizens of Collin County, Texas, an exchange of ideas and techniques related to purchasing, administration, and management is essential. Therefore, we hold membership in NIGP, The Institute for Public Procurement (NIGP), the National Purchasing Institute (NPI), the Dallas Fort Worth Metroplex Chapter of NIGP (DFW NIGP), and the Public Purchasing Association of North Central Texas (PPANCT). We are proud to announce that the Collin County Purchasing Department has received the prestigious NPI Excellence in Procurement Award for the past 18 years, 2003-2020.


Contact Us

We are always ready and willing to help. If you have a product or service to sell, please call for an appointment. Office hours for salespeople wanting to see the Purchasing Agent or staff are by appointment only between the hours of 8:00 a.m. and 5:00 p.m. This office is closed on weekends and legal holidays.

It will be appreciated if you will make this Department the first point of contact when presenting your products to Collin County. Because of the nature of your product, it may be desirable to put you in contact with the departments which use or may use such materials. Many of these departments are spread throughout the County, so your initial contact with us is important.


Excellence in Purchasing for 18 Years Running

The Collin County Purchasing Department is the recipient of the 2020 Achievement of Excellence in Procurement Award. Collin County is one of only 40 Counties in the United States and Canada to receive the award. Collin County has received the award for eighteen (18) consecutive years.