ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/cad/  direct

[DIR]z88/  direct  729+ twin directories
[DIR]xcircuit/  direct  1362+ twin directories
[DIR]vipec/  direct  1064+ twin directories
[DIR]varkon/  direct  1052+ twin directories
[DIR]transcalc/  direct  1191+ twin directories
[DIR]tochnog/  direct  1026+ twin directories
[DIR]tkgate/  direct  1067+ twin directories
[DIR]tclspice/  direct  161 twin directories
[DIR]systemc/  direct  263+ twin directories
[DIR]spice/  direct  1133+ twin directories
[DIR]slffea/  direct  99 twin directories
[DIR]scv/  direct  95 twin directories
[DIR]scotch/  direct  678+ twin directories
[DIR]sceptre/  direct  305+ twin directories
[DIR]qucs/  direct  1074+ twin directories
[DIR]qmls/  direct  102 twin directories
[DIR]qfsm/  direct  181 twin directories
[DIR]qcad-partslib/  direct  90 twin directories
[DIR]qcad/  direct  1987+ twin directories
[DIR]pythoncad/  direct  778+ twin directories
[DIR]pdnmesh/  direct  128 twin directories
[DIR]pcb/  direct  1415+ twin directories
[DIR]p5-GDS2/  direct  86 twin directories
[DIR]oregano/  direct  1252+ twin directories
[DIR]opencascade-tutorial/  direct  87 twin directories
[DIR]opencascade/  direct  871+ twin directories
[DIR]ngspice_rework/  direct  92 twin directories
[DIR]netgen/  direct  666+ twin directories
[DIR]mars/  direct  332+ twin directories
[DIR]magic/  direct  2947+ twin directories
[DIR]linux-gid/  direct  88 twin directories
[DIR]linux-eagle/  direct  183 twin directories
[DIR]libgeda/  direct  1224+ twin directories
[DIR]leocad/  direct  115 twin directories
[DIR]klayout/  direct  86 twin directories
[DIR]kicad/  direct  1197+ twin directories
[DIR]jspice3/  direct  133 twin directories
[DIR]iverilog/  direct  329+ twin directories
[DIR]irsim/  direct  191 twin directories
[DIR]impact/  direct  219+ twin directories
[DIR]gwave/  direct  1020+ twin directories
[DIR]gtkwave3/  direct  82 twin directories
[DIR]gtkwave/  direct  1120+ twin directories
[DIR]gspiceui/  direct  585+ twin directories
[DIR]gplcver/  direct  772+ twin directories
[DIR]gnucap/  direct  1320+ twin directories
[DIR]gmsh/  direct  845+ twin directories
[DIR]gerbv/  direct  1118+ twin directories
[DIR]geda-utils/  direct  1009+ twin directories
[DIR]geda-symcheck/  direct  92 twin directories