There are some unexpected links between Triodos Bank and some of the magical stuff I've been researching. I first found out when I checked the upcoming events at the Bristol Theosophical Lodge and saw a director of the bank would be giving a talk there. Apparently the bank is rooted in the ideas of Rudolf Steiner's anthroposophy. The Guardian says:

Its roots (like the UK bank Mercury Provident, which it took over in 1995), are in the anthroposophy movement. This refers to the ideas of the Austrian spiritualist thinker Rudolf Steiner, who died in 1925 and whose interests included education, 'biodynamic' agriculture, eurythmy (movement as art) and therapeutic medicine.

Triodos Bank's statutes committed it to anthroposophical principles until 1999, when this formal link was dropped, and in recent years the bank, under its current head Peter Blom, has embarked on a policy of reaching out beyond Steiner adherents and of broadening its appeal. Nevertheless, Triodos's origins are reflected in the fact that most of the Dutch directors come from within anthroposophy, and it is banker for many Steiner-inspired projects.