Several people have contributed ideas and/or code to the FreeBSD Port Tools:

Tim Middleton
Jens Rehsack
Lars Thegler
Sergey Matveychuk
Remi ...
Nicola Vitale
Paul Dlug
Tim Bishop
Toni Viemero
Mike Johnson
Roman Bogorodskiy
Cheng-Lung Sung
Yen-Ming Lee
Janos Mohacsi
Diane Bruce
Radim Kolar
Xin LI
HASHI Hiroaki
Dmitry Marakasov
Mathieu Arnold
Li-Wen Hsu
Winston Weinert
Hans Fredrik Nordhaug