A few more.
Portugal
Air Madeira
Yugoslavia
Trans Adria
Sweden
Scanair
Turkey
BHT Bogazici Air Transport
TUR European Airways
Birgenair
Nesu Air
Belgium
Constellation International Airlines
Czechoslovakia
Air Terrex
Slovakia
Air Slovakia
UK
Southern International Air Transport - well not quite... this Viscount operator was due to use a 727, but it never came to fruition - did Dan Air operate it instead?
European Air Charter - again, not quite - had a 727 painted up, but never operated for them?
Some of these may be out of scope as they are from the 1990s, some may have operated the 727 for a short time and on lease from other airlines.