Know-How Exchange : Other

I need a reliable Contact data provider, that actually does have fresh (close to real time) data. It would be great to have a large email coverage with emails that actually work. Are there any new players, with new ideas, other than just having a database refreshed once per year? The reason I am actually starting this thread is that the legacy database I have has actually become outdated, so cleaning/refreshing/email and phone enrichment needs to be done as soon as possible. Maybe even some additional "out of the ordinary" data points added as well to assist the sales efforts...