Well, at least almost. Spectrum Wine holds auctions primarily in California and in Hong Kong but since some time back they have a live representative in place in Europe. It is the (ex-?) wine writer Stuart George who is in charge of developing the European market for Spectrum.
He is no doubt interested to get in touch with both potential buyers as well as potential suppliers to the auctions. Contact Stuart on in the UK on his phone: +44 773 8582 356 (Say hello from old colleagues at BKWine!)
Update: Since publishing this post, George, who is also a wine writer, has become one of the contributors to BKWine Magazine.
