New Hampshire Corporation Name Search and Naming Rules

New Hampshire maintains a public, searchable database of every registered business entity, and you can check name availability yourself before filing. Use the QuickStart business name search operated by the Secretary of State, Corporation Division.

How to search effectively

Do not just search your exact proposed name and stop there. The state requires your name to be distinguishable from existing entities, which is a broader test than an exact match. Search:

• Your exact name, to catch a direct conflict.
• The distinctive core of your name without the corporate designator — search "Granite Peak" rather than only "Granite Peak Corporation," since the state may treat those as the same for distinguishability.
• Close variations — singular versus plural, common misspellings, and names that differ only by a small word like "the" or "and."

If you find something close, assume it could be a problem and adjust before filing. A name that is too similar to an existing entity gets rejected, which costs you time.

New Hampshire will not register a corporate name that is not distinguishable from a name already on the state's records — including corporations, LLCs, limited partnerships, reserved names, and registered trade names. Understanding what does not make a name distinguishable saves you a rejection.

Differences that usually don't count

A name generally is not made distinguishable merely by:

• Adding or changing the entity designator (turning "Corp." into "Inc." or "LLC").
• Adding or removing articles and connectors like "the," "a," or "and."
• Changing punctuation, spacing, or capitalization.
• Switching between singular, plural, and possessive forms of the same word.
• Substituting a symbol or numeral for a word that means the same thing (like "&" for "and" or "2" for "to").

Differences that do count

Genuinely different distinctive wording makes a name distinguishable. If the core, memorable part of your name is meaningfully different from everything on file, it should clear. When in doubt, lean toward a more distinctive name — it is both easier to register and easier to build a brand around.

Beyond availability, the name has to meet New Hampshire's content rules for corporations.

Required designator

A corporate name must contain a word or abbreviation that signals it is a corporation — such as "Corporation," "Incorporated," "Company," or "Limited," or the abbreviations "Corp.," "Inc.," "Co.," or "Ltd." This tells the public they are dealing with a corporation, not a sole proprietor or partnership.

Restricted and prohibited words

• The name cannot imply the corporation is organized for a purpose it is not authorized to pursue.
• Words suggesting a regulated activity — such as "bank," "banking," "trust," or "insurance" — typically require approval from the relevant state regulator before they can be used.
• The name cannot falsely suggest an affiliation with a government agency.

Truthfulness

The name should not be misleading about the nature of the business. New Hampshire, like other states, does not want corporate names that deceive the public about what the entity is or does.

Sometimes you have settled on a name but are not ready to file the Articles of Incorporation — you are still lining up co-founders, financing, or a launch date. New Hampshire lets you reserve an available name for a limited period so no one else takes it while you get organized.

How reservation works

You file a name reservation through the QuickStart portal, and if the name is available, the state holds it for you for the reservation period. This does not create the corporation — it only protects the name. When you are ready, you still file the Articles of Incorporation to actually form the entity.

Is reservation worth it?

For most people, no — they simply file when they are ready. Reservation makes sense when there is a real gap between choosing the name and filing, and you are worried about someone else grabbing it. If you are filing within days, skip the reservation and go straight to the Articles.

Clearing the Secretary of State's availability check means the name is available for state registration. It does not mean the name is free of every legal risk.

Trademarks

A name can be available in New Hampshire's business registry and still infringe someone else's trademark. State entity registration and federal trademark rights are different systems. If you are investing in a brand, it is worth searching the USPTO trademark database and, ideally, consulting a trademark attorney before you commit. A name you cannot legally use as a brand is a problem no state filing solves.

Domain and social handles

Practically, check whether the matching domain name and social media handles are available before you finalize. This is not a legal requirement, but discovering after formation that your ideal web address is taken is a frustration worth avoiding.

Trade names (DBAs)

If you want to operate under a name different from your corporation's official legal name, New Hampshire registers trade names separately. A trade name lets the corporation do business under an alternate name without forming a new entity — a distinct filing from the Articles of Incorporation, with its own term before renewal is required.

Choosing a corporate name is part legal check and part branding decision. A little structure keeps you from painting yourself into a corner.

Start with a short list, not a single name

Come up with three or four candidates rather than falling in love with one. Names get rejected for being too similar to existing entities, and trademarks or unavailable domains can rule out a favorite. Having alternatives ready means a conflict does not send you back to square one.

Run each candidate through the same gauntlet

For every name you are serious about:

• Check availability in the QuickStart business name search, including the distinctive core and close variations.
• Do a quick USPTO trademark search for conflicts in your industry.
• Check the matching domain and the main social handles.
• Say it out loud and imagine it on an invoice, a sign, and an email address.

A name that passes all four is a safe bet. A name that fails one is worth reconsidering before you file, not after.

Think ahead about growth

A name that is too narrow can box you in later. "Concord Snow Removal Inc." is precise, but it looks odd once you add landscaping and paving. If you expect the business to broaden, a name that describes what you value rather than a single service ages better. You can always register a trade name for a specific product line under a broader corporate umbrella.

When the name clears, act

Corporate name availability is a snapshot, not a reservation. Another business could register a similar name the day after you check. Once a name clears and you are ready, file — or reserve it if you need time. Do not treat a clean search from last month as a guarantee it is still open today.