Just heard back frow Swire UK (Shippers) via a good friend of mine. They are
a) unable to assist the UK boats with any form of sponsorship even if we carry their logo/name on hulls and or sails
b)unable to quote for shipping to/from Singapore

They seemed to try to help especially as it turned out afterward that they don't have a route UK-Singapore direct, and genuinely seemed interested.

It was worth a try, I'll now work on some others. Anyone else got a suggestion?