We've always played on the fact the we are vendor agnostic and independent from the WCM companies we partner with. Sometimes it's not an easy space to occupy with some vendors being less than comfortable with the arrangement due to numerous perceived 'conflicts of interest' - mostly brought about by their paranoia and blind faith in their 'best of breed' product.
For us, becoming agnostic simply made good sound commercial sense. Afterall, when we started trading almost three years ago we were a 100% Obtree C4 house and what with its end of life in sight (there, someone finally said what everyone knows!) if we hadn't adapted, our own end of life would be fast approaching too.
Now we're actively supporting clients with WCM solutions and developments in Immediacy, Sitecore, EpiServer, Pepperio as well as RedDot and good old soon to be departed (oops, said it again) Livelink WCMPS/Obtree C4.
Simon has blogged many times about our WCM to WCM Migration offering, MIM:Switch. It's very exciting for us that the MIM:Switch toolset is now being used in anger for the first time at a major UK organisation to assist in their move away from Livelink WCMPS/Obtree C4. Which solution are they moving to? They/we don't know yet but that's not important... we're vendor agnostic!