I'm a Tcl user since 1997, now retired. I used to work for Bloomberg LP in London - I am not authorised to give out any information about what tools they may or may not use.
I previously worked for COMPANY: Alcatel, mostly writing plain C, but squeezing in a little Tcl now and then.
Before Alcatel I was at Intrasoft SA, Greece, before that at Dundee University, Scotland.
I can be emailed at colin.macleod(at)mailbox.org . I use the id "CGM" on this wiki, on the Tcl chat and on reddit.
I'm doing a little blogging at https://colin-macleod.blogspot.com
Tartaniser - Make your own Scottish tartan.
gush - a Graphical User SHell.
Diskusage - a little utility to help out when your disk gets full.
Flog - log-follower utility.
AdvertSkipper for YouTube - what it says, Windows-specific.
Why I'm Tcl-ish - Advocacy.