These three tools get shortlisted together and they do not do the same job. Working out which one you were actually looking for saves more time than any feature table, so that is where this starts.
Person level and company level are different products
RB2B identifies individual people. An anonymous visitor lands on your site, and it attempts to return a name and a professional profile by matching against an identity graph assembled from other sources. Coverage is US only, and that is a deliberate design choice rather than a gap.
Leadfeeder, now part of Dealfront, works at company level. It takes the visitor's IP address, looks it up against a firmographic database, and tells you which organisation the address belongs to. You learn that someone at a company visited. You do not learn who.
Clearbit, absorbed into HubSpot, was primarily an enrichment layer. You bring it a domain or an email and it returns structured detail about the company or person behind it. The reveal product sat alongside that and behaved much like the company-level tools above.
So a shortlist containing all three usually means the underlying question has not been settled yet. Do you want a person, a company, or better data on records you already hold? Those lead to different tools, and only one of them is really a visitor identification problem.
What Raydar does, and who it is wrong for
Raydar does not do any of the above, and it is worth being blunt about that before anything else.
There is no identity graph behind it, no firmographic database, and no data broker relationship. An anonymous stranger arriving from a company you have never spoken to will stay anonymous. If your requirement is to see which businesses browsed your pricing page this week so sales can work the list, Raydar will not do that and none of the rest of this page will change that answer.
What it does is narrower. It matches your own known contacts to later anonymous sessions using a hashed IP address, which is covered properly in who clicked my link. The short version: it works only for people who have already dealt with you, which is a far smaller pool than a reveal tool advertises and a much easier one to justify.
The trade is coverage for provenance. You get fewer identified visitors, and you can say exactly where every identification came from, because the person handed it to you.
The match rate question
Every tool in this category has a match rate, and the number is rarely volunteered in a form you can compare. Company-level reveal depends on whether the visitor's IP is registered to their employer, which increasingly it is not. Remote work moved a large share of business browsing onto residential connections that resolve to a consumer internet provider and nothing more useful.
Person-level matching carries the same problem plus a harder one, since it needs the individual to exist in the graph at all.
Raydar publishes its uncertainty instead of smoothing it. Every match carries a confidence tier, and only a clean residential connection earns the top one. Anything routed through a phone network, a VPN or a shared office gateway is marked down, because those put several people behind a single address. Hiding that would quietly devalue every other number on the page.
The privacy question is not decoration
Identifying named individuals who never consented is under active legal pressure, and the regime that applies depends on where your visitor is sitting rather than where you are. Tools in this space have historically handled that by restricting coverage geographically, which is why person-level identification tends to stop at the US border.
First-party matching sidesteps most of the argument because the person gave you the information. That is not a claim of blanket compliance and you should still take your own advice on consent, but the difference between inferring an identity and being told one is the difference that most of the scrutiny turns on.
Picking
If you need anonymous companies resolved for an outbound sales motion, use a company-level tool built for it. Leadfeeder and its peers exist for that and Raydar is not a substitute.
If you need named individuals off anonymous traffic and you are comfortable with the coverage limits and the legal position, that is RB2B's category rather than ours.
If your traffic comes from a bio link, a QR code, or a campaign you are running yourself, and what you actually want is to know which of your own contacts came back and what they clicked, that is the case first-party matching was built for. It pairs with asking people directly, which stays the most accurate identification method available and the only one nobody can object to.