[exim] Exim Enterprise Support

Are there any companies providing Exim technical support, integration
support, that kind of thing?

My organization is looking into using Exim as an MTA behind our existing
email services. I know a few other open source MTAs (Kolab, for example)
have connections to related companies that provide pay-for support for that
MTA; I was wondering if something similar existed for Exim. We don't really
need a large 'overall email solution' just an MTA, and some advice on how
to fix up our existing architecture.

Thanks in advance!
_____________
Sincerely,
Robert Price