IPO Action is a financial research site that provides real-time tracking of IPO filings from the SEC's EDGAR database. For investors and finance professionals, that kind of service can be useful — and the site does a lot right. It has been around for over 13 years, uses modern security protections, and publishes both a privacy policy and terms of service. That's more than many smaller financial sites bother with.
However, there are two things worth noting. First, there's no obvious contact information on the homepage or a clear legal entity disclosure. For a site that positions itself as a professional research tool, knowing who's behind it matters. Second, while the site has social media links and an About page, the ownership details are thin. That doesn't make it a scam — but it does mean you should proceed with a healthy dose of caution if you're considering submitting personal data or paying for any premium features.
For basic browsing and IPO research, ipoaction.com appears legitimate. Just don't treat it as an established, fully transparent institution until they add clearer contact and ownership information.