Most cryobiologists don't know or care about cryonics, because it is the purview of a tiny (< 3000 peple) and eccentric minority.
However, there certainly are cryobiologists, even prominent ones, who have shown a great willingness to work with cryonics organizations and publicly associate with them.
Take Gregory Fahy as an example. He is an eminent cryobiologist who authored the seminal paper on vitrification of human embryos for reproductive medicine: http://www.biolreprod.org/content/67/6/1671.full
His company, 21st Century Medicine, created the M22 cryo...
I don't know, but he was/is involved with a stillborn cryoincs startup called Timeship. Also, he spoke at a cryonics and life extension conference recently with people like Ralph Merkle, and does seem to endorse present vitrification-based cryopreservation as "good enough." Search youtube for "fahy" and you should be able to find it.