Most of fonts are stored in DAT/TAB files. All fonts from game menus
are stored like this. You can download extracted bitmaps containing
single letters here:
Download Syndicate extracted font bitmaps
The in-game font, which shows mission objective, is stored in different way, inside HREQ.DAT:
For headers on this site (like the one you should see at top of this page),
I made a higher resolution font. Its dimensions are twice as big
as original font used in the game:
Download hires Syndicate font bitmaps
From those bitmaps, some fans created FON/TTF files.
Low-quality font, from Amiga version of the game:
Download Syndicate 5pt Amiga font by Patrick Lauke
Large collection Syndicate fonts - 6 different fonts from PC version:
PC Syndicate True Type Fonts pack by GrinningGhoul
There are some other fonts named "Syndicate" and claimed to be based on the game. But those are not free, and they are very different from original fonts used in the game.
To get more fonts, check "Font files" section in "Syndicate Wars" subsite.
Reworked font files: *.DAT/*.TAB HREQ.DAT HFNT01.DAT