Key Takeaways
- Search tool: NH QuickStart, free, run by the New Hampshire Department of State, Corporation Division
- Search by business name, business id, filing number, or registered agent
- Name reservation available for $15 (120 days)
- New Hampshire lists LLC members/owners in the public record
- New LLC names must include a designator such as "limited liability company," "LLC," or "L.L.C."
- Same-day name-availability confirmation and formation filing available through LLC Attorney at no markup on state fees
Searching New Hampshire's QuickStart portal for a business name is free and fast, and the state's guidance actually steers filers away from one common extra step — a formal name reservation — since New Hampshire lets you file your Certificate of Formation directly without reserving first.
This guide covers exactly how to search for a New Hampshire business or check LLC name availability in 2026 — the QuickStart search tool and its match modes, New Hampshire's distinguishable-upon-the-records standard, why reservation is optional, trade name registration, and what a search actually reveals about an existing business's ownership.
How to Search for a Business in New Hampshire
Use the New Hampshire Department of State, Corporation Division's NH QuickStart to search for an existing business or check whether a new LLC name is available. Search by business name, business id, filing number, or registered agent. The search is free.
Search directly at quickstart.sos.nh.gov/online/BusinessInquire.
State guidance specifically recommends using "All Words" mode rather than "Exact Match" — Exact Match can miss a similar name that just has an extra filler word added, which is exactly the kind of variant New Hampshire's distinguishability standard still treats as a conflict.
The results table shows Business Name, Business ID, Home State, Previous Name, Business Type, Principal Office Address, Registered Agent, and Status; clicking through reveals the full filing history with viewable and downloadable documents, including formation certificates and annual reports.
Checking Name Availability Before You File
Search QuickStart in "All Words" mode to catch near-variants New Hampshire's distinguishability rule still blocks. Since New Hampshire doesn't require a formal reservation before filing, most filers use this same search directly ahead of submitting their Certificate of Formation rather than reserving first.
New Hampshire's Distinguishability Standard
New Hampshire's statutory standard is explicitly "distinguishable upon the records" of the Secretary of State — and the state spells out what doesn't count as distinguishing: different designators (LLC vs. Inc.), filler words, pluralization, numerals vs. spelled-out numbers, phonetic variants, and abbreviations, punctuation, or spacing differences are all treated as the same name.
Reserving a Name in New Hampshire Before You Form
Name reservation available: For $15, you can reserve your chosen name for 120 days before filing.
File Form 1 (Application for Reservation of Name) online, by mail, or in person for $15, holding the name for 120 days. New Hampshire's own guidance frames this as optional and arguably unnecessary in most cases, since the state doesn't require a reservation before filing — you can go straight to your Certificate of Formation if you're ready to file promptly. Mail processing runs roughly 5–8 business days.
Searching for DBAs and Fictitious Names in New Hampshire
New Hampshire's trade name registration is filed with the state (Corporation Division) via an Application for Registration of Trade Name for $50, with online processing in 3–7 business days or 1–3 weeks by mail. Notably, New Hampshire runs the naming rule in reverse for unincorporated filers: sole proprietors and partnerships are restricted from using corporate-style words (Inc., Corp., LLC, etc.) in a trade name unless they're actually incorporated — the opposite of the usual designator requirement.
New Hampshire LLC Naming Requirements
Your new LLC's name must include a designator such as "limited liability company," "LLC," or "L.L.C.".
One specifically documented restricted term is "Farmers' market," reserved for entities meeting the legal definition. General professional/financial restricted-word practices (bank, attorney, insurance, engineer) likely apply under standard New Hampshire statute, though the complete list should be confirmed directly with the Corporation Division before treating any specific term as cleared.
An Available LLC Name Isn't the Same as a Trademark-Safe Name
New Hampshire's Corporation Division does register trademarks and service marks separate from entity name registration; the current specific fee should be confirmed directly via sos.nh.gov or by calling (603) 271-3246 before relying on a quoted figure.
QuickStart only checks your name against other New Hampshire-registered entities, not federal trademarks. Search the USPTO's TESS database separately, since a clean New Hampshire search offers no protection against an existing federal mark held elsewhere.
What a New Hampshire Business Search Reveals
New Hampshire's Certificate of Formation includes a built-in Manager/Member Information section, so names go on the public record from day one, and the annual report reconfirms at least one name publicly going forward — a more disclosure-forward setup than states that keep this information off the initial formation filing.
New Hampshire lists LLC members/owners in the public record, so a search can reveal ownership information.
QuickStart's filing history includes viewable and downloadable documents — formation certificates, annual reports, and amendments — directly from an entity's record.
Getting a New Hampshire Certificate of Good Standing
You can confirm an LLC's good standing status and request a Certificate of Good Standing through the same NH QuickStart, for $5 standard; $30 expedited (some online orders print immediately; mailed requests take a few additional days).
How to Search and Reserve Your New Hampshire LLC Name
If You Do It Yourself
Step 1 — Search the NH QuickStart at quickstart.sos.nh.gov/online/BusinessInquire.
Search by business name, business id, filing number, or registered agent to confirm your desired name isn't already taken.
Step 2 — Apply the state's distinguishability standard, not just an exact-match check.
New Hampshire's statutory standard is explicitly "distinguishable upon the records" of the Secretary of State — and the state spells out what doesn't count as distinguishing: different designators (LLC vs. Inc.), filler words, pluralization, numerals vs. spelled-out numbers, phonetic variants, and abbreviations, punctuation, or spacing differences are all treated as the same name.
Step 3 — Check your name against restricted/regulated words.
One specifically documented restricted term is "Farmers' market," reserved for entities meeting the legal definition. General professional/financial restricted-word practices (bank, attorney, insurance, engineer) likely apply under standard New Hampshire statute, though the complete list should be confirmed directly with the Corporation Division before treating any specific term as cleared.
Step 4 — Confirm your name includes a required LLC designator.
Your name must include a designator such as "limited liability company," "LLC," or "L.L.C.".
Step 5 — Reserve your name for $15 if you're not ready to file yet.
File Form 1 (Application for Reservation of Name) online, by mail, or in person for $15, holding the name for 120 days. New Hampshire's own guidance frames this as optional and arguably unnecessary in most cases, since the state doesn't require a reservation before filing — you can go straight to your Certificate of Formation if you're ready to file promptly. Mail processing runs roughly 5–8 business days.
Step 6 — Run a separate USPTO trademark search before you commit.
QuickStart only checks your name against other New Hampshire-registered entities, not federal trademarks. Search the USPTO's TESS database separately, since a clean New Hampshire search offers no protection against an existing federal mark held elsewhere.
Step 7 — File your formation documents promptly once you've confirmed availability.
If you didn't reserve the name, nothing holds it for you — another filer could take it first.
Step 8 — Watch for New Hampshire-specific search quirks.
New Hampshire's most distinctive quirk is its reverse designator rule for trade names — sole proprietors and partnerships are barred from using corporate-style words (Inc., Corp., LLC) in a DBA unless actually incorporated, the opposite of what filers typically expect. The second quirk is that the state itself discourages using its own name-reservation service, with official guidance describing it as unnecessary in most cases since you can file your Certificate of Formation directly without reserving first.
If LLC Attorney Does It for You
- Submit your desired business name at llcattorney.com along with one or two backup options.
- LLC Attorney runs the New Hampshire name-availability search, checks it against restricted-word rules, and confirms your designator is correctly formatted before filing.
- Receive confirmation once your name is filed, plus access to flat-fee attorney consultations (no retainer) if a trademark conflict or distinguishability question comes up.
When Should You Talk to an Attorney About Your New Hampshire LLC Name?
Talk to an attorney before finalizing a New Hampshire LLC name if you're deciding whether the optional name reservation is worth the $15 given your filing timeline, if you're a sole proprietor or partnership wanting to register a trade name and need clarity on New Hampshire's reverse designator restriction, or if member/manager privacy on the initial Certificate of Formation is a concern given New Hampshire's built-in disclosure requirement.
What You Actually Get With LLC Attorney's New Hampshire Name Search
New Hampshire's distinguishability rule treats filler words and minor variants as no different from an existing name — LLC Attorney runs an All-Words-mode check as part of every formation order so a near-miss name doesn't surface as a rejection after filing.
- A New Hampshire name-availability search run for you before you pay any state filing fee.
- Restricted-word and distinguishability screening, so your filing isn't rejected for a naming issue you didn't know about.
- Formation starting at $49, with your confirmed name filed the same day where the state allows it.
- Access to professionally trained Business Success Advisors at no charge, plus flat-fee attorney consultations (no retainer) for trademark-conflict questions.
Since New Hampshire's Certificate of Formation puts manager/member names on the public record immediately, LLC Attorney walks you through that disclosure upfront during formation, not as a surprise once your filing is public.
Ready to Form Your New Hampshire LLC?
Once you've confirmed your name is available, LLC Attorney can handle the rest of your New Hampshire LLC formation, starting at $49. See our full pricing for all service tiers.
Frequently Asked Questions
Yes. NH QuickStart is free to search, with match modes for Starts With, Exact Match, Contains, or All Words and no login required.
Search QuickStart using "All Words" mode rather than "Exact Match," since New Hampshire's "distinguishable upon the records" standard treats filler words, pluralization, numerals, phonetic variants, and punctuation differences as the same name — Exact Match can miss those variants.
Yes, but it's optional and arguably unnecessary per state guidance, since New Hampshire doesn't require a reservation before filing. It costs $15 and lasts 120 days if you do want one, via Form 1.
No — New Hampshire's Certificate of Formation includes a built-in Manager/Member Information section, so names are part of the public record from the initial filing, reconfirmed via the annual report.
You can order a Certificate of Good Standing for $5 standard or $30 expedited, with some online orders printable immediately.
New Hampshire's trade name registration costs $50, filed with the Corporation Division. Notably, sole proprietors and partnerships are barred from using corporate-style words (Inc., Corp., LLC) in their trade name unless actually incorporated — the reverse of the usual rule.
Your New Hampshire LLC name must include "limited liability company," "LLC," or "L.L.C." and must be distinguishable upon the records of the Secretary of State — filler words, pluralization, and punctuation differences don't count as distinguishing. "Farmers' market" is a specifically restricted term.
No. QuickStart only checks against New Hampshire entities, not federal trademarks. Search USPTO's TESS database separately, and confirm New Hampshire's own trademark registration fee directly with the Corporation Division.
Yes. LLC Attorney runs a New Hampshire name-availability search as part of every formation order, and flags any restricted-word or distinguishability issue before you pay a filing fee.