Winstead values diversity in action by actively participating in and sponsoring a number of key organizations and events, including:
- ABA Judicial Intern Opportunity Program
- Asian American Bar Association of Austin, Dallas and Houston
- Asian Law Students Association
- Carolina Asian-American Chamber of Commerce
- HBA Gender Fairness Association Program
- Hispanic Bar Association of Austin, Dallas and Houston
- Hispanic Law Students Association
- Hispanic National Bar Association
- Houston Diversity Council (Winstead is a founding member)
- Houston Lawyers Association
- J.L. Turner Legal Association
- Jackie Robinson Foundation
- John S. Leary Bar Association
- Judicial Intern Opportunity Program
- National Asian Pacific American Bar Association
- National Association of Women Lawyers Partnership
- Real Estate Council Diversity Program
- Rocky Mountain Black Law Student Association
- Sunbelt Minority Job Fair
- Texas Diversity Council Symposium
- Texas Minority Corporate Counsel Program
- When and Where I Enter, Inc.