Someone Is Using My Business Name — What Are My Options?

Finding out that another company is operating under your business name is unsettling — but it does not automatically mean your rights have been violated, and it does not automatically mean you have to sue. U.S. trademark law turns on a handful of practical questions, and the answers determine which moves are realistic. This guide walks through them in order.

First question: do you actually have rights to the name?

In the United States, trademark rights come primarily from use in commerce, not from paperwork. The business that first uses a name to sell goods or services generally acquires rights to it — these are called common-law rights, and they exist even without any USPTO registration. The catch is that common-law rights are usually limited to the geographic area where you actually operate and are known to customers (plus, in some cases, a natural zone of expansion).

A few things people often assume create trademark rights but do not, on their own:

• Forming an LLC or corporation with the name at the state level.
• Reserving or buying a domain name.
• Registering a “DBA” / fictitious business name.

Those steps matter for other reasons, but trademark priority generally goes to whoever used the name in genuine commercial sales first. So the threshold question is: who used this name in commerce first, and for what?

If you hold a federal registration with the U.S. Patent and Trademark Office, you are in a much stronger position. Federal registration provides nationwide constructive notice of your claim, a legal presumption that your mark is valid and that you own it, and the ability to sue in federal court. You can confirm a registration’s status and ownership through the USPTO’s public records. If you only have common-law rights, you may still have a claim, but it will be narrower and harder to prove. (For the full picture on registering, see the pillar guide, How to Trademark Your Business.)

Is it really infringement?

The core legal test for most trademark disputes is likelihood of confusion — whether ordinary consumers are likely to be confused about who is behind the goods or services. It is not enough that two names look or sound alike; the question is whether real customers would mistakenly believe the two businesses are the same, affiliated, or endorsed by one another.

Courts weigh several factors (the exact list varies by federal circuit, but the themes are consistent):

• How similar the names are — in spelling, sound, appearance, and meaning.
• How related the goods or services are. A bakery and a software firm with the same name may coexist; two bakeries cannot as easily.
• Whether you operate in overlapping geographic markets — especially important for common-law rights.
• How strong or distinctive your name is. Invented or arbitrary names get broad protection; descriptive ones get little until they become well known.
• Evidence of actual confusion, if any exists.
• The other party’s intent — did they knowingly copy you?

Two businesses can lawfully share a similar name when they sell unrelated things in different places to different audiences. That is why “someone is using my name” is the start of the analysis, not the end of it. Before sending any accusation, honestly assess whether confusion is genuinely likely — overreaching claims can backfire and even expose you to counterclaims.

Your options, from lightest to most aggressive

Once you believe you have rights and there is a real likelihood of confusion, you generally have an escalating ladder of choices. Experienced counsel usually pick the least aggressive step that actually solves the problem.

1. Monitor and document. If the conflict is minor or the other party is small and distant, the right move may be to keep records — screenshots, dates of first use, sales evidence — and watch for the situation to grow. Good documentation also strengthens any later action.

2. Informal contact. Sometimes a short, professional message clears it up, especially when the other business adopted the name innocently. Many disputes resolve here without lawyers ever exchanging fire.

3. Cease-and-desist letter. A formal letter from you or your attorney states your rights, explains the conflict, and asks the other party to stop (or to phase out, rebrand, or limit their use). It creates a paper trail and often opens a negotiation. Tone and accuracy matter — a sloppy or threatening letter can prompt a “declaratory judgment” lawsuit asking a court to declare no infringement. See our guide to a trademark cease-and-desist letter for what one should and should not say.

4. UDRP complaint (for domain names). If the real problem is someone holding a confusingly similar domain name in bad faith — classic cybersquatting — the Uniform Domain-Name Dispute-Resolution Policy (UDRP) is often faster and cheaper than court. Through a provider such as WIPO, you must show three things: (1) the domain is identical or confusingly similar to a mark you have rights in; (2) the registrant has no legitimate interest in it; and (3) it was registered and is being used in bad faith. A UDRP panel can order the domain transferred or cancelled — but it cannot award money damages. It is a tool for domains, not a general infringement remedy.

5. TTAB opposition or cancellation (at the USPTO). If the other party has applied to register or already registered the name federally, you can challenge it at the Trademark Trial and Appeal Board. An opposition tries to block a pending application; a cancellation seeks to remove an existing registration, often on grounds such as likelihood of confusion or non-use. Crucially, the TTAB decides only registration rights — it cannot stop the other party from using the name, award damages, or issue an injunction. It is about the federal register, not about money or shutting down use.

6. Lawsuit in federal (or state) court. When use must actually stop, or when you are seeking money, infringement litigation under the federal Lanham Act is the venue with real teeth. A court can issue an injunction ordering the other party to stop, and it can award monetary relief. Litigation is also the slowest and most expensive option, so it is usually a last resort or a response to serious harm.

These tools are not mutually exclusive — for example, you might send a cease-and-desist letter, file a UDRP for the domain, and oppose a pending application, all at once.

What you can realistically recover

Manage expectations early. The realistic outcome of most disputes is that the other party stops or rebrands — not a large cash payout.

• A UDRP gets you the domain (transfer or cancellation). No damages.
• A TTAB proceeding gets you a registration blocked or cancelled. No damages, no injunction against use.
• A court can order an injunction and, under the Lanham Act, may award remedies such as the defendant’s profits, your actual damages, and the costs of the action. In exceptional cases, a court may award attorney’s fees, and in some circumstances enhanced or statutory amounts may apply. These awards are discretionary, fact-dependent, and far from guaranteed — proving and collecting them is its own battle.

Because litigation costs can quickly exceed what you would recover, the smart question is usually “what outcome do I actually need?” — often that is simply making the confusion stop.

Where registering first would have changed things

Many of these fights are harder than they need to be because the owner relied on common-law rights alone. A federal registration would have:

• Put your claim on nationwide constructive notice, undercutting a later user’s “we didn’t know” defense.
• Given you a presumption of validity and ownership, so you spend less proving you own the name.
• Opened the door to federal court and the Lanham Act’s remedies.
• Made it far easier to oppose or cancel a conflicting application — and to win a UDRP, where a registration is strong evidence of rights.

If you are reading this before a dispute, registering your strongest names is one of the highest-leverage protective steps available. For what the process actually costs, see trademark costs in 2026, and browse our trademark archive for case-by-case examples of how these principles play out.

The bottom line

“Someone is using my business name” is a question, not a verdict. Work through it in order: confirm you have rights (usually by using the name first), confirm confusion is genuinely likely, and confirm your markets overlap. Then choose the lightest effective tool — a message, a cease-and-desist letter, a UDRP for a domain, a TTAB challenge for a registration, or a lawsuit when use must truly stop. The most common and realistic win is getting the other party to rebrand or back off, not a windfall. And if you ever wish you had more leverage, that is the case for registering your key marks before the next conflict arises.

This guide is general education, not legal advice, and does not create an attorney–client relationship. Trademark rights are fact-specific and vary by jurisdiction. Before acting on a dispute, consult an attorney licensed in your jurisdiction.