ZoomInfo by Domains - company lookups keyed on a domain
A company domain is the most reliable key in B2B data. It arrives with every signup, sits on every CRM record, and unlike a company name it does not come in six spellings. Resolving that domain to a company record - industry, headcount, revenue, location, phone - is what turns a list of email domains into something a routing rule or a territory model can act on. This service is pointed at ZoomInfo for that purpose: submit domains, get one row each.
What an export declares is fourteen columns: the submitted query echoed back, the company name and website, a phone number, headcount, revenue, industry, founding year, street address, city, state, country, stock ticker and a logo link. Those names are copied byte-for-byte from a real export header, which is the only reason this page can list them at all.
What our runs returned is different, and it is stated here rather than buried. Five real exports sit behind this page. Four of them came back with a single row in which the company fields were empty and a status column read, word for word, that the request was blocked because ZoomInfo is paid and protected and needs a residential proxy and an account. The fifth returned no rows whatsoever. Not one company field has ever been observed holding a value. Those runs also reveal two entirely separate schemas: a four-column status envelope - domain, company name, ZoomInfo URL and status - that reports the outcome of a request, and the fourteen-column company header that appeared with nothing underneath it. The two share no field names at all, the envelope calling the domain "domain" where the wide header calls it "query", so an importer has to tolerate either and should branch on status before it looks for data fields. Everything on this page is therefore described as declared rather than confirmed: no fill rates, no example values, and no claims about formats, including whether headcount arrives as an exact number or a band.
The reason is not mysterious, and it shapes how this page should be read. ZoomInfo is a commercial B2B data provider whose database is a product it sells and whose access sits behind a paid account - our own status string names that directly. This is not a public register like WHOIS or an open map like OpenStreetMap, and the assurance that appears elsewhere in this catalogue, that nothing sits behind a login, is deliberately absent here because we cannot make it. Two things follow: ZoomInfo's terms of use are an agreement between you and ZoomInfo, so satisfy yourself that your intended use is compatible before running a large job; and the declared schema includes a phone number and a company address, so B2B marketing rules and a defensible retention period apply to whatever you keep. If domain-keyed firmographics are what you actually need, Company Insights answers the same question with columns measured from real exports rather than declared by an empty header. No third-party trackers run on the data layer, exports auto-delete after 30 days, and your first 500 rows are free - on this service in particular, spend them before you spend anything else.