Pan European Networks (PEN) is a marketing company.
[1] They try to convince people that "publishing" with them is a way to reach European science leadership.
[1] This however appears to be untrue and it is regarded as a non-credible source.
[1] The organization is known for making calls to researchers offering to publish their work but requesting an immediate commitment.
[1] Initial proposed charges are around 10,000 USD for a publication but this appears to be negotiable.