The structure decides who you share results with and how much control you keep. These are typical patterns; the legal form and terms depend on the domicile and the program documents.
| Factor | Single-parent captive | Group captive | Protected cell |
|---|
| Who owns the insurer | Your organization | Several member companies | A sponsor; you use a cell (or own an incorporated cell where the law allows) |
| Whose losses affect you | Only your own | Yours, plus other members’ through any shared layer | Your cell’s, if segregation holds under the domicile’s law |
| Control over wording and claims | High | Shared through the group’s governance | Within the sponsor’s rules |
| Capital and set-up | Full license, capital and service team of your own | Member capital or collateral; shared running costs | Cell funding and collateral; sponsor fees |
| Leaving | You decide, subject to run-off of past claims | Exit terms and any continuing liability set by the program | Set by the cell agreement and regulator approval |
An actuary usually comes first, to test whether the numbers work; a captive manager, counsel and the domicile regulator follow once a structure is chosen.