I'd never heard of them, but here's their heading from their...

I'd never heard of them, but here's their heading from their main site:

http://www.wolseley.com/

Welcome to the world’s number one
distributor of heating and plumbing
products. The professionals' choice
for all kinds of building materials,
operating locally with customers in
14 countries across Europe and
North America. Expert sourcing
and application advice on a diverse
range of top brand equipment.
Industry leading distribution
networks at every level, a truly
international business operating
in local markets. Delivering
products and services where
they are wanted, when they
are needed.