Penetration Testing / Ethical Hacking Certifications

Known certifications;

Offensive Security Certified Professional (OSCP) (Offensive Security dot Com)
Certified Expert Penetration Tester (CEPT) (Information Assurance Certification Review Board (IACRB))
Certified Ethical Hacker (CEH) (EC-Council)
Certified Open Source Security Penetration Tester (OPST)
SANS ? (GPEN) (http://www.giac.org/certifications/security/GPEN.php)

Any other known certs ? Please help and contribute to the list.