The Top 10 “Other” Stockholders:

1. Jack W. Schuler, Lead Director of the Stericycle Board of Directors, Chairman of the Nominating and Governance Committee and member of the Stericycle Audit Committee

2. Mark C. Miller, Stericycle President and CEO

3. John Patience, Member of the Stericycle Audit Committee and the Nominating and Governance Committee

4. Rod F. Dammeyer, Chairman of the Stericycle Audit Committee and member of the Nominating and Governance Committee

5. Susquehanna International Group, LLP

Contact: Drew Milstein

Mailing Address: 401 City Avenue, Suite 220, Bala Cynwyd, PA 19004-1188

6. Frank J. M. ten Brink, Stericyle Executive Vice President, Chief Financial Officer, and Chief Administrative Officer

7. Thomas R. Reusch, Former member of the Stericycle Board of Directors

8. Richard L. Foss, Stericyle Executive Vice President, International

9. KBC Group NV

Contact: Jan Vahnhevel, CEO KBC Group or Luc Popelier, CEO Market Activities

E-mail: Jan.Vanhevel@kbc.be or Luc.Popelier@kbc.be 

10. Richard T. Kogler, Stericycle Chief Operating Officer