You need to confirm a name is free before you file, or confirm a company is real before you sign. A Maine business entity search does both. Maine runs one free tool for this: the Corporate Name Search inside ICRS, the state’s online corporate records system.
This guide shows how to run a state of Maine business search correctly, read the results, and act on them. Every fee and deadline below is current for 2026 and cited to the Maine Secretary of State (SOS) and Maine statute.
| Question | Quick answer |
|---|---|
| What is the tool? | Corporate Name Search, Maine SOS |
| Cost to search? | Free (certificates and copies cost extra) |
| Who runs it? | Division of Corporations, Maine SOS |
| Canonical URL | apps3.web.maine.gov/nei-sos-icrs/ICRS |
| Phone | (207) 624-7752 |
Source: Maine Secretary of State, Division of Corporations.
What Is the Maine Business Entity Search?
The Maine business entity search is the free Corporate Name Search in the state’s ICRS system, run by the Division of Corporations (officially the Division of Corporations, UCC & Commissions) within the Bureau of Corporations, Elections and Commissions at the Maine Secretary of State. It returns public records for corporations, LLCs, partnerships, and nonprofits.
Use it for three jobs: check a name before formation, run due diligence before a deal, and confirm your own entity stays compliant. One caution matters. The Division of Corporations “strictly prohibits mining data” and warns that “use of automated tools in any form may result in the suspension of your access,” per the Corporate Name Search page. Maine’s tool is built for one-off lookups, not bulk due diligence pipelines. High-volume researchers need another workflow.
How Do You Perform a Maine Business Entity Search?
Open the Corporate Name Search, type a keyword from the name or a charter number, and review the matching entities. Results list four columns: Legal Name, Charter Number, Filing Type, and Status. Click “Information Summary” on any entity to open its full record, including registered agent, filing history, and principal address. The search is free to view and print.
Steps:
- Open the Corporate Name Search.
- Enter a keyword from the name (60 characters max) or a charter number (10 to 11 digits). The category dropdown in the page source is currently disabled, so keyword and charter number are the two live inputs.
- Scan the results by Legal Name, Charter Number, Filing Type, and Status.
- Click “Information Summary” for the entity’s registered agent, filing date, jurisdiction, and address.
Search tip: use the core name, drop suffixes like “LLC” and punctuation, so the keyword matches broadly.
What Entity Types Can You Search in Maine?
The search covers every entity category Maine files: domestic types, foreign types labeled “Doing Business in Maine,” and held-name categories. A keyword search matches across all of them at once. The table below maps the main categories to what they represent.
| Category | What it is |
|---|---|
| Business Corporation | Domestic for-profit corporation |
| Limited Liability Company (LLC) | Domestic LLC |
| Limited Partnership (LP), Limited Liability Partnership (LLP) | Domestic partnerships |
| Nonprofit Corporation (Title 13 and Title 13-B) | Domestic nonprofits |
| Cooperative, Financial, Insurance, Railroad Corporation | Other domestic special types |
| “… Doing Business in Maine” | Foreign entities qualified in Maine |
| Reserved Name, Registered Name | Names held or protected, not active entities |
| Mark | Registered trademarks |
Source: Maine SOS ICRS filing categories.
What Do Maine Entity Search Statuses Mean?
The Status column tells you whether an entity is compliant and active. Maine’s Information Summary record carries this value alongside the agent and address. These are the statuses you will see most often:
- Good Standing / Active: compliant and authorized to operate.
- Not in Good Standing: a report or fee is overdue.
- Administratively Dissolved: the state dissolved a domestic entity for noncompliance.
- Revoked: the state withdrew a foreign entity’s authority.
- Merged: the entity merged into another and no longer exists alone.
- Withdrawn: a foreign entity voluntarily ended its Maine authority.
- Expired: a reserved or registered name whose hold lapsed.
How Do I Check If a Business Name Is Taken in Maine?
Search the core name, without suffixes or punctuation, across the tool. Zero close matches suggests the name is available, but only the Secretary of State’s review at filing is final. Maine applies a distinguishability standard: your name must be distinguishable on the record from existing entities and reserved names.
Under Maine’s distinguishability statute, 31 M.R.S. (Maine Revised Statutes) §1508, a name must be distinguishable from every registered corporation, LLC, LP, LLP, assumed name, and registered mark. Trivial differences do not count: adding “the,” “and,” or punctuation will not distinguish two names. You can still use a taken name with the holder’s written consent plus a name-change undertaking, or with a court judgment. Your name must also carry the correct designator, such as LLC, L.L.C., or Inc.
How Do You Reserve a Business Name in Maine?
A name reservation is a filing that holds a name exclusively for 120 days while you prepare formation paperwork. File the Application for Reservation of Name for your entity type. Reserved names then appear in the search under the Reserved Name categories, so others see the hold.
| Filing | Fee | Source |
|---|---|---|
| Reservation of Name, business corporation and LLC | $20 | Maine SOS |
| Reservation of Name, nonprofit corporation | $5 | Maine SOS |
When the 120-day hold lapses, the name is exposed again. Confirm current renewal rules with the Division of Corporations before you rely on extending a reservation.
How Do You Verify an LLC Is in Good Standing in Maine?
The free search shows status, but official proof is a paid Certificate of Existence, Maine’s name for a certificate of good standing. Issued under 31 M.R.S. §1664, it is conclusive evidence the entity exists or is authorized. Annual reports must be current first. Foreign entities receive a Certificate of Qualification instead.
You will need one to open bank accounts, close financing, pass M&A (mergers and acquisitions) due diligence, and foreign-qualify in other states. Document and certificate fees:
| Document | Fee | Source |
|---|---|---|
| Filing image (per page) | $3 | Maine ICRS |
| Certified copy | $5 | Maine ICRS |
| Certificate of Existence, for-profit | $30 | Maine ICRS, 31 M.R.S. §1664 |
| Certificate of Existence, nonprofit | $10 | Maine ICRS |
How do you authenticate a certified Maine document?
Every certified document from the site carries a document authentication number in its lower-left corner. Anyone, a bank or a counterparty, can enter that number in Maine’s Authentication Service to confirm the document is genuine. This lets a third party trust a PDF certificate without contacting the state directly, which speeds up bank and financing reviews.
What Is a Registered Agent in Maine?
Every registered Maine entity must list a clerk (for corporations) or a registered agent (for other entities) under Maine’s Model Registered Agents Act, 5 M.R.S. chapter 6-A, adopted in 2007. The agent’s details appear on the entity’s Information Summary in the search.
Maine recognizes two types. A commercial registered agent files a listing statement with the Secretary of State and serves many entities as a business. A noncommercial agent is anyone else, listed entity by entity. Either way, the agent needs a physical Maine street address, not a P.O. box, and must be available during business hours. The job is accepting service of process, meaning lawsuits, and state notices. An unreachable agent means missed lawsuits and default judgments.
How Do You Register a Foreign Entity in Maine?
An entity formed elsewhere must file for authority before doing business in Maine. Once approved, it appears in the search under the “Doing Business in Maine” categories. Every application requires a certificate of existence from the home state dated within 90 days of filing.
| Form | Filing and entity type | Fee | Source |
|---|---|---|---|
| MBCA-12 | Application for Authority, foreign corporation | $250 | Maine SOS |
| MLLC-12 | Statement of Foreign Qualification, foreign LLC | $250 | Maine SOS |
| MLPA-12 | Application for Certificate of Authority, foreign LP | $250 | Maine SOS |
| MLLP-12 | Application for Authority, foreign LLP | $250 | Maine SOS |
| MNPCA-12 | Registration, foreign nonprofit | $45 | Maine SOS |
What Comes After Your Maine Entity Search?
For a new business, file formation documents with the Division of Corporations. Maine splits naming by type: LLCs file a Certificate of Formation (form MLLC-6, under Title 31 chapter 21), and corporations file Articles of Incorporation under Title 13-C.
| Filing | Form | Fee | Source |
|---|---|---|---|
| LLC Certificate of Formation | MLLC-6 | $175 | Maine SOS |
| Expedited service, 24-hour | any filing | $50 | Maine SOS |
| Expedited service, same-day | any filing | $100 | Maine SOS |
Download forms from maine.gov and file by mail or in person. Maine has no single statewide business license: licensing runs by industry and municipality. State registration is also separate from federal trademark protection.
When Is the Maine Annual Report Due?
Every Maine entity files an annual report by June 1, with the filing window open from January 1 to June 1, through Maine’s Annual Reports Online. Fees depend on entity type.
| Entity type | Annual report fee | Deadline | Source |
|---|---|---|---|
| Domestic corporations and LLCs | $85 | June 1 | Maine SOS |
| Foreign entities | $150 | June 1 | Maine SOS |
| Nonprofit corporations | $35 | June 1 | Maine SOS |
Missing June 1 triggers a late filing penalty from the Maine SOS. Left unpaid, it leads to administrative dissolution for domestic entities or revocation of authority for foreign entities, which flips the search status out of good standing. Confirm the current penalty amount with the Division of Corporations before you budget for a late filing.
Why Does My Maine Entity Search Return No Results?
A no-result search usually has a simple cause. The business may operate under an assumed name, be a sole proprietorship (which does not register with the SOS), or be registered in another state without Maine qualification. Your keyword may also be too specific.
Try a shorter keyword, drop suffixes and punctuation, and search the core word only. If you still find nothing, call the Division of Corporations at (207) 624-7752, staffed 10 a.m. to 5 p.m. weekdays.
How Commenda Helps With Maine Entity Compliance
Maine’s search shows you status, but keeping every entity in good standing across states is the harder job. Commenda’s entity management platform handles formation filings, registered agent details, and annual report deadlines like Maine’s June 1 date, in Maine and every other state you operate in, from one dashboard. Track filings with the Commenda compliance calendar and clear names with the company name checker before you file.
Book a demo to get a free compliance-calendar review of every entity you own, with each state’s report deadline mapped for you.
