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Protected cell captives: evaluating a cell before you join

In a protected cell structure, a sponsor operates a licensed insurer divided into cells. A participant's premium, assets and liabilities sit in its own cell and are separated from other cells and from the sponsor's core — to the extent the domicile's law provides.

A cell-based structure that separates participant assets and liabilities within a sponsored or cell company framework.

Cell options compared

Terminology varies by jurisdiction. Statutes use terms such as protected cell, incorporated cell, segregated account or series, and they are not interchangeable; confirm the exact legal form in the domicile you are considering.

FactorUnincorporated cellIncorporated cellRent-a-captiveStandalone captive
Separate legal entityNo — part of the sponsorYes, where the statute providesNoYes
Basis of separationStatute and cell agreementStatute and separate entityContract and accountingSeparate company
Your controlWithin sponsor rulesMore, through the cell’s own boardWithin sponsor rulesFull
LeavingCell termination needs approvalCan be more portable; check the lawContractual exitYour decision, subject to run-off

Counsel familiar with the domicile's cell statute should review the cell agreement; ask the sponsor for its own financial statements and how it handles a failing cell.

Benefits and limitations

Potential benefits

  • Captive-style retention without forming and licensing a standalone insurer.
  • The sponsor already holds the license, infrastructure and regulatory relationship, which usually shortens set-up.
  • Statutory segregation is designed to keep other cells' losses away from yours.
  • A practical way to test retention before committing to a standalone captive.

Key considerations and limitations

  • In most cell structures you do not own the insurer; you operate within the sponsor's governance.
  • Segregation is a legal construct: its strength depends on the domicile's cell legislation, the documents and the sponsor's solvency.
  • Unincorporated and incorporated cells are different legal forms with different reporting and control.
  • Sponsor fees, cell administration and collateral sit on top of the retained risk, and each new cell typically needs regulatory approval.

Is this relevant to me?

When it may be worth exploring

  • You want to retain risk in a captive-style structure without your own insurer.
  • Your premium does not yet justify a standalone captive's fixed costs.
  • You are comfortable working within a sponsor's rules.

When it may not fit

  • You want full ownership and control of the vehicle.
  • Your program has grown to where a standalone captive makes more sense.
  • You are not comfortable with your risk in a shared structure, however segregated.

15 companies

Oct 20, 2026How are these providers ranked?

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