Homebrew PCBs

I'm interested in getting more information on the
Seno line of PCB processing products. Mega Electronics
in the UK sells many of their products, including
liquid photoresist, resist developer, tinning solution,
etchant, etc.

I'd like to contact the Seno company (I believe they
are German) directly, and find out whether there are any
direct distributors or sales outlets in the U.S.

I'm thinking "Seno" is just a trade or brand name and that
the company behind the products is something entirely
different.

Any help appreciated.