corporate action data

Can someone recommend a good source for corporate action data? I need at the very least: ticker changes, dividends, splits, acquisitions and delistings. I historically used Bloomberg Back Office and am looking for a suitable replacement that is within a small team's budget besides just scraping a bloomberg terminal.

Edit: More generally where are the major places getting their data? Are they parsing each companies websites or some some sec filings that I am missing? Is it from DTCC?

Answer

Depends on your budget of course, but:

Also, consider how much IT resources you have for accurately getting, parsing, processing and storing these data.