Trademark vs domain vs company name
Registering a company, buying a domain, and registering a trademark are three separate systems, and completing one gives you nothing in the other two. The company register reserves a legal entity name in one jurisdiction, the domain gives you an address on the internet, and only the trademark protects the name as a brand in your class of goods or services. Most founder naming disasters trace back to treating any one of these as if it covered the other two.
| Trademark | Domain | Company name | |
|---|---|---|---|
| What it is | A brand right in a class of goods or services | A contract for an internet address | A legal entity name on a companies register |
| Who grants it | A trademark office (USPTO, EUIPO) | A registrar, first come first served | A state or national companies register |
| What it protects | The name as a brand, against confusingly similar use in your classes | Only that exact address, while you renew it | Only the entity name, in that jurisdiction |
| What it does not do | Reserve the domain or the entity name | Confer any brand or legal naming right | Stop anyone from trademarking or branding the same name |
| Typical cost | $350 per class (USPTO), EUR 850 first class (EUIPO), as of August 2026 | Around $10 to $20 per year for a .com | Bundled into incorporation fees |
| How to check it | Registry search: USPTO and EUIPO | Live availability lookup | The companies register where you incorporate |
The company name: an entity, not a brand
When you incorporate, the companies register checks that no identical entity name exists in that register and reserves yours. That is the entire service. It is jurisdiction-scoped, so the same entity name can exist in fifty other registers, and it is not a brand right, so it does not stop anyone from trademarking the same word and then enforcing that mark against your trading name. The reverse trap is just as common: founders find the entity name free, incorporate, and read that as clearance. A companies register never checked the trademark registers, and incorporation certificates are no defense in an infringement claim. Your legal name and your brand can differ, which is why so many companies trade under a mark that is not their registered entity name.
The domain: an address, not a right
A domain is allocated first come, first served, by contract with a registrar, and renews for as long as you pay. It confers no intellectual property right in the name. The asymmetry is what founders miss: holding the domain gives you no defense against a trademark holder, while a trademark holder with prior rights can take the domain from you through UDRP proceedings. The domain still matters commercially, because the .com is where brand trust defaults, and a taken .com usually signals an existing business already trading under the name, sometimes with unregistered rights a register search will not show. Check it first because it is instant: how to check if a domain is available covers the authoritative way, and every name this site generates has had its .com checked live at generation time.
The trademark: the only one that protects the brand
A trademark is the system with legal teeth. Registered with an office like the USPTO or the EUIPO, it protects the name as a brand within the classes of goods and services you file in, against identical use and against confusingly similar use, which is a far wider net than exact duplication, as the identical versus confusingly similar page shows with examples. It is also the system founders check last, or never, because the registers feel like lawyer territory. That ordering is backwards: the trademark register is where the expensive collisions live. A name that is incorporated and hosted but collides with a live mark in your class is a rebrand with extra steps.
The order to check them, and why
Check the domain first, because it is instant and eliminates most candidates cheaply. Screen the trademark registers second, because that is where legal and financial risk concentrates: run exact, phonetic, and fuzzy passes in your classes rather than a bare spelling lookup, by hand via a knockout search or automated here, where the US (USPTO) check is free on any name and the EU (EUIPO) register is on the paid check. Check the companies register last, because entity names are the easiest to vary and the cheapest to fix. A name that survives all three systems is one you can incorporate, host, and eventually file, without one registration quietly contradicting another. The start-to-finish checking guide runs the whole sequence in detail.
What this comparison does not cover
This page maps the three registration systems; it does not decide legal questions inside any of them. The trademark screen here is an automated registry search of the US and EU registers, not legal advice and not a clearance opinion, and it does not check company registers, social handles, or national registers beyond those two offices. Unregistered common-law rights, which arise from trading rather than registering, sit outside all three systems and are exactly the kind of question that belongs with a trademark attorney before you commit real money to a name.
Questions, answered
Is registering a company name the same as trademarking it?
No. Company registration reserves your legal entity name with a state or national companies register so no identical entity can incorporate there. It gives you no brand rights: a company registration does not stop someone else from trademarking the same name and then stopping you from trading under it. Only a trademark protects the name as a brand.
Does owning the domain give me any rights to the name?
Ownership of a domain is a contract with a registrar, not an intellectual property right. It stops anyone else from using that exact address while you hold it, and nothing more. A trademark holder with prior rights can win the domain from you through UDRP proceedings, while owning the domain gives you no defense against a trademark claim.
Can I trademark a name if someone else owns the .com?
Sometimes, because the systems are separate: the domain holder may have no trademark rights at all. But a taken .com is a signal worth reading. It often means an existing business is trading under the name, possibly with unregistered rights, and it means your brand would live on a compromise address. Check who holds it and what they do before deciding.
Which should I check first: domain, trademark, or company register?
Domain first, because it is instant and eliminates fastest: if the .com is taken by an active business, most founders move on. Trademark second, because it carries the legal risk: screen the US (USPTO) register free here on any name, with the EU (EUIPO) register on the paid check. Company register last, because entity names are jurisdiction-scoped and usually easy to vary. A name worth keeping survives all three.
Do I need all three registrations?
A trading startup ends up with all three: an incorporated entity, a domain, and, once the name is settled and worth defending, a trademark. But they arrive at different times. Incorporation happens when you form the company, the domain when you pick the name, and the trademark filing typically once the brand is carrying real value. What should never be deferred is checking all three systems before you commit to the name.
Related: the free US trademark search, whether you need to trademark at all, and what a trademark costs.
Trademark results are an automated database search against the USPTO and EUIPO registries, not legal advice and not a clearance opinion. Registries change daily; results are dated. Before filing, have counsel run full clearance.