Delaware Series LLC: sourced answers
2 answers to specific questions — each with a verbatim quote from an official source and a link to it.
Every answer is checked against a verbatim quote from a stored copy of its source and has passed an independent review. This is reference information, not legal advice: rules change, and the outcome depends on your circumstances.
Legal form in a country
Which statute (act) establishes the legal form
in Delaware the creation of series companies is regulated by Delaware Code §18-215
«18-215. Series of members, managers, limited liability company interests or assets. (a) A limited liability company agreement may establish or provide for the establishment of 1 or more designated series of members, managers, limited liability company interests or assets. Any such series may have separate rights, powers or duties with respect to specified property or obligations of the limited liability company or profits and losses associated with specified property or obligations, and any such series may have a separate business purpose or investment objective. No provision of this section or § 18-218 of this title shall be construed to limit the establishment of a series that is not a protected series or a registered series. Other than pursuant to §§ 18-219, 18-220 and 18-221 of this title, a series may not merge, convert or consolidate pursuant to any section of this title or any other statute of this State; provided, however, this section shall not be construed to prevent a limited liability company with series from merging, converting or consolidating pursuant to any section of this title or as otherwise permitted by law. …»
Source: delcode.delaware.gov · source copy as of 2026-10-03
Which authority registers the structure and keeps its register
A Series LLC comes into existence on the filing of a certificate of formation with the Delaware Secretary of State
«18-201. Certificate of formation. (a) In order to form a limited liability company, 1 or more authorized persons must execute a certificate of formation. The certificate of formation shall be filed in the office of the Secretary of State and set forth: (1) The name of the limited liability company; (2) The address of the registered office and the name and address of the registered agent for service of process required to be maintained by § 18-104 of this title; and (3) Any other matters the members determine to include therein. (b) A limited liability company is formed at the time of the filing of the initial certificate of formation in the office of the Secretary of State or at any later date or time specified in the certificate of formation if, in either case, there has been substantial compliance with the requirements of this section. A limited liability company formed under this chapter shall be a separate legal entity, the existence of which as a separate legal entity shall continue until cancellation of the limited liability company’s certificate of formation. …»
Source: delcode.delaware.gov · source copy as of 2026-10-03
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