Ohio business entity information, including entity name, type, number, and formation date, is available through the Ohio SOS business portal. This online database provides immediate access to the details you need for onboarding, compliance, or business transactions.

Below, you will find exactly how to search the Ohio database, where to find each piece of information, and what format each data point takes in Ohio's system.

Summary table: finding your Ohio entity information

The table below outlines where to locate each key data point and what to expect when you find it.

How to search for Ohio business entities

Access the Ohio business search portal to look up any registered business. The portal supports searching by business name, entity number, agent or registrant name, organizer or incorporator, and includes separate tabs for trademark and service mark searches. This makes the portal useful whether you are searching by name, entity number, or registered agent in Ohio.

Enter your business name in the Business Name search field. Searching "Acme" returns "Acme Industries, LLC" and similar entities. The portal supports both partial matching and exact-match searches, with on-portal guidance available through a "Name Search Help" link.

You can filter results by status: "All," "Active," "Cancelled," "Dead," or "Fraudulent." The "Fraudulent" status was added following Senate Bill 98, signed by Governor DeWine and effective October 24, 2024, which introduced new protections against fraudulent business filings.

For best results, try searching with and without business designators like "LLC" or "Inc.," since including or omitting them may affect results. Click any entity name in the results to view complete details, including entity number, formation date, agent information, and filing history.

What you'll see in search results

• Legal entity name (exact spelling and punctuation)

• Entity type (LLC, Corporation, PLLC, Professional Association, Limited Partnership, etc.)

• Entity Number (labeled Charter Number, License Number, or Registration Number depending on entity type)

• Filing date

• Current status (Active, Cancelled, Dead, Hold, or Fraudulent)

• Agent or registrant information (name, address, effective date, and status)

• Location (city and county for domestic corporations)

Per the portal's own disclaimer, data is for informational purposes only; certified records require a separate request through the Certificates of Good Standing portal.

How to find your entity number in Ohio

Your Ohio entity number is a numeric identifier assigned by the Ohio Secretary of State when your entity was formed or registered. The specific label for this number varies by entity type.

Ohio entity number terminology

The umbrella term is "Entity Number," but the label applied to your entity depends on its type:

This terminology mapping reflects Ohio SOS administrative practice and is referenced in the Ohio Department of Taxation's CAT registration instructions, which cite "charter number, registration number or license-to-conduct-business number issued by the Ohio Secretary of State." When submitting information to Ohio state agencies, use the entity-type-appropriate label to avoid processing delays.

Where to locate your Ohio entity number

1. Ohio business search

• Prominently displayed in search results and at the top of the entity details page

• Labeled "Entity #" on the detail page, with the entity-type-specific term applied

• Format: a numeric sequence (e.g., 12345678). The digit count is not specified in the Ohio Revised Code and appears to be an SOS administrative practice

2. Certificate of Formation or Incorporation

• Usually at the top of the document

• May be labeled "Charter Number," "Registration Number," or "License Number" depending on entity type

• Issued by the Ohio Secretary of State

3. Biennial reports, periodic filings, and state correspondence

• Appears on all official Ohio Secretary of State documents

• Used as your account identifier for biennial and periodic filings

• Referenced in compliance notifications

How to find your entity type in Ohio

Ohio recognizes a wide range of business entity types, listed exactly as shown in your business search results and formation documents.

Recognized Ohio entity types

The most common entity types and their governing statutes include:

• For-Profit Corporation (domestic and foreign), governed by ORC Chapter 1701

• Nonprofit Corporation, governed by ORC Chapter 1702

• Limited Liability Company in Ohio (domestic and foreign), governed by ORC Chapter 1706, which became effective February 11, 2022 and replaced the prior Chapter 1705

• Professional Corporation (PC), governed by ORC Chapters 1701 and 1785

• Professional LLC (PLLC), governed by ORC Chapters 1706 and 1785

• Limited Partnership (LP), governed by ORC Chapter 1782

• Limited Liability Partnership (LLP), governed by ORC Chapter 1776

• Professional Association (PA), governed by ORC Chapter 1785

Professional Corporations and Professional Associations are different statutory entities, even though both involve Chapter 1785: PCs are corporations formed under Chapter 1701 with the additional professional-entity provisions of Chapter 1785, while PAs are formed directly under Chapter 1785. Do not use the two terms interchangeably.

The portal also tracks registrations that are not full entity formations, including foreign name registrations, trade names, fictitious names, name reservations, trademarks, and service marks.

Where to find your Ohio entity type

1. Ohio business search (most accessible)

• Displayed prominently in search results under "Type"

• Shows the full legal designation (e.g., "Limited Liability Company," "Corporation")

2. Certificate of Formation or Incorporation

• At the top of your formation document

• States the specific entity type using Ohio's official terminology

3. Periodic filings and amendments

• Listed in entity information and cannot be changed without a formal amendment filing

How to find your formation date in Ohio

Your formation date, which is when the Ohio Secretary of State officially filed and approved your business entity, appears in Ohio business search results as the "Filing Date" and on your Articles of Organization (for LLCs) or Articles of Incorporation (for corporations).

Where your Ohio formation date appears

1. Ohio business search (easiest access)

• Listed as "Original Filing Date" on the entity detail page

• Shows the date the filing or transaction was effective

2. Certificate of Formation or Incorporation

• At the top of the document, with the Ohio Secretary of State stamp

• Sometimes includes both filing and effective dates

3. Filing history on the detail page

• A filings table shows each filing type, date, and document ID

• Useful for tracking compliance history and future filing requirements

Formation date vs. effective date

Ohio allows businesses to specify a future effective date when filing. Per ORC § 1706.16(B), an LLC "is formed when the articles of organization are filed by the secretary of state or at any later date or time specified in the articles of organization."

• Formation date (file date): When the Ohio Secretary of State processed your paperwork

• Effective date: When your entity officially began operations, if you specified a later date

The statute permits only a "later" date or time, so retroactive effective dates are not authorized. Most Ohio entities have the same formation and effective dates, as delayed effective dates are less common.

Simplify Ohio entity compliance with Discern

With your Ohio entity details in hand, onboarding to Discern's platform takes minutes. The platform coordinates Ohio's filing requirements alongside your other state obligations, tracking deadlines and managing registered agent services so nothing slips through the cracks.

For firms managing entities across multiple jurisdictions, Discern eliminates the complexity of tracking different filing schedules, fee structures, and compliance requirements. Whether you have a handful of Ohio registrations or a portfolio spanning dozens of states, Discern's automated filing and registered agent services keep every entity in good standing without manual oversight.

Schedule a demo to see Discern in action