Secretary of State

The Secretary of State for a US state is generally that state’s chief elections officer, chief corporations officer, and supervisor of state archives. The Secretary of State works to enhance government transparency and to institute financial safeguards by registering and authenticating business entities. Key corporate documents such as formation documents will need to be filed with the Secretary of State in the state of formation. Each state may have different filing requirements.

Beneficial Ownership Reporting Requirements under the Corporate Transparency Act: What You Need to Know
As a result of changes in US law, most newly formed companies, as well as many existing companies, will need to comply with the beneficial ownership information (BOI) reporting rule
Glossary: Certificate of Incorporation
The Certificate of Incorporation is a legal document that establishes a corporation as a legal entity and contains basic rules for governance of the corporation.
Dissolving a Delaware Corporation
So You Owe Thousands of Dollars in Delaware Franchise Tax?
Limited Liability Companies (LLC): The Basics