I love this idea!
Something like that really needs to be done, and you've stepped up to the plate to begin that journey of putting all of that together!
A list of ALL startups, in one place, would really be great!
One question/caveat though -- how do you determine / how would you determine if a startup is no longer in startup mode?
That is, if the startup has become a big business, if the startup has been acquired, if the startup has failed, etc., etc.?
I guess (if the correct data wasn't present or unavailable or hard to parse, etc.) you could simply take startups off the last after a fixed time period, like maybe 12 months, 24 months, <?> months, ?.
Or, maybe add a retrieval date and source...
Two extra fields for your database... the date when it was spidered/sourced/parsed/found/uploaded/etc, and the source URL (or URL's...).
Then you could keep all of the data for all time... just let your users sort/filter on that retrieval date, for "freshness" of data, relative to their needs...
Anyway, looks great so far!
Great work!