The OpenSSL Software Foundation (OSF) represents the OpenSSL project in most legal capacities including contributor license agreements, managing donations, and so on. It is a Delaware (US) non-profit corporation with its own bylaws.
The best way to contact OSF is by sending an email to email@example.com. For postal or telephone contact, use the following:
40 E Main St, Suite 744
Newark DE 19711
OpenSSL Software Services (OSS) also represents the OpenSSL project, most notably as the Vendor of Record for the FIPS validation.