Perforce software includes software developed by the University of California, Berkeley and its contributors. This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/).

Perforce software includes software from the Apache ZooKeeper project, developed by the Apache Software Foundation and its contributors. (http://zookeeper.apache.org/)

Perforce software includes software developed by the OpenLDAP Foundation (http://www.openldap.org/).

Perforce software includes software developed Computing Services at Carnegie Mellon University: Cyrus SASL (http://www.cmu.edu/computing/).