Note that the COSMOS office is closed on weekends. Support responses will resume on Monday.


Before contacting the office with questions please review the online information and FAQs first.

Admissions information and campus specific inquiries, please visit:
(Including prerequisite information, cluster details, housing specifics, etc.)

UC Davis COSMOS; Tel: (530) 754 7325
UC Irvine COSMOS; Tel: (949) 824 6806
UC San Diego COSMOS; Tel: (858) 822 4361
UC Santa Cruz COSMOS; Tel: (831) 459 1766

For technical issues with the website or application, please email:

(Including residency inquiries, refund requests, applications, policies, etc.)

Tel.: (530) 752-7317 [Monday-Friday 10:00am-2:00pm]

Mailing Address:
COSMOS Statewide Office
230 Physical Sciences & Engineering Library
One Shields Avenue
Davis, CA 95616

Niels Grønbech Jensen, Ph.D., Director
Accepted Inquiries: Program direction and management only.

Johnny Chavez, Interim Assistant Director
Tel: (530) 752-7317
Accepted inquiries: General questions/information, including applications and policies.

Benjamin Cadranel, Associate Director of Development
Tel: (c) (530) 746-1790; (o) (530) 752-7331
Primary contact for Fundraising.

Allison Chilcott, Executive Director of Development
Tel: (530) 979-1439
Accepted inquiries: Fundraising.

Jaime Heppler, Assistant Development Director
Tel: (530) 754-2031
Accepted inquiries: Fundraising.