Search and Apply for Assumed Names/Co-Partnerships

Business name searches and registrations for Assumed Names and Co-Partnerships are available through the Oakland County Clerk's Office. 

• An Assumed Name consists of one or more parties.  It is more binding since all parties listed must sign the documents in front of a notary public and no changes can be made without the signatures of all parties involved.
• A Co-Partnership consists of two or more parties and may be dissolved or changed by the signature of any party.

The Oakland County Clerk's Office is required to ensure that the business name you are seeking is not being used as an Assumed Name or Co-Partnership within Oakland County. You may apply in person at the Vital Records office or by mail. 

Additional questions regarding small businesses can be directed to the Oakland County Business Center.

You may visit the State of Michigan for information regarding how to file corporations and non-profit organizations.

Online Search: Free search of Oakland County business name records.

State of Michigan's Corporation Division Business Entity Search 
Also find out if your business name has not been filed as a Corporation with the state before filing with our office.

You may first search the online business name search above for availability of a name.  Please note that final approval of a business name is the decision of the Oakland County Clerk's Office.  

Each business name is valid for 5 years, subject to renewal.

We are prohibited by law from accepting a name for filing that is the same as or similar to another name already on file.  Keep in mind that spelling variations may exist.

• Assumed Name Certificate and Instructions
• Discontinuance of an Assumed Name
• Assumed Name - Address Change/Legal Name Change
• Assumed Name - Out of State Consent
• Co-Partnership Certificate and Instructions
• Discontinuance of a Co-Partnership

Certificates may be submitted in person or by mail.  You must include a stamped, self-addressed envelope.