Considering a Cell Captive? Practical Considerations for Brokers and UMAs

We will be sharing a series of short, practical perspectives on reinsurance, UMAs and risk structures, based on what we are seeing in the market.

As a starting point, we have seen increasing interest from brokers and UMAs exploring cell captive structures as a way to take greater control over underwriting participation, product design and long-term value creation.

While the concept is generally understood at a high level, the practical realities of establishing and operating within a cell structure are often more nuanced. In our experience, the difference between a successful arrangement and a challenging one typically comes down to how well the fundamentals are understood upfront.

What is a cell captive structure?

At its core, a cell captive structure allows a business to participate in underwriting within a licensed insurer, without itself becoming a licensed insurer.

This structure can provide a pathway for brokers and underwriting managers to move beyond placing business and towards having a more direct role in how risk is carried and managed.

 When does a cell captive make sense?

A move into a cell captive is rarely a short-term decision. It tends to be most appropriate where there is:

• A sufficiently established and scalable premium base
• A desire to participate more directly in underwriting results
• The ability to influence product design and pricing
• A long-term view on building a sustainable portfolio

For many brokers and UMAs, it represents a natural evolution - from placing business to having a more direct stake in its performance.

Common misconceptions

While the appeal of cell captive structures is clear, there are a few recurring misconceptions that are worth highlighting.

A cell captive is not simply a mechanism for reducing cost. While there may be efficiencies over time, the structure introduces its own requirements in terms of governance, capital and risk management.

It is also not a "set and forget" model. In practice, ongoing oversight, performance monitoring and alignment between stakeholders are critical to ensuring the structure remains effective.

Finally, scale and diversification matter. Without sufficient volume and spread of risk, the underlying portfolio can become more volatile than anticipated.

Practical considerations

For those considering this route, it is often helpful to frame the decision around a few key questions:

• Is there sufficient scale?
• A viable cell typically requires a level of premium and consistency that can support both operating costs and risk volatility.
• How will underwriting and governance be managed?
• Clear roles and responsibilities between the broker or underwriting manager, the cell owner and other partners are essential.
• What does the risk profile look like?
• Understanding claims behaviour, volatility and potential downside scenarios is critical before taking on underwriting participation.
• How will risk be transferred or managed?

This is often where the long-term sustainability of the structure is determined.

The role of reinsurance

While the cell provides a platform for underwriting participation, the reinsurance structure is a key component in shaping the overall risk profile.

From a reinsurance perspective, thoughtful structuring can help manage volatility, protect capital and improve the stability of returns over time. In practice, the design of the reinsurance programme needs to align closely with the underlying portfolio characteristics and the objectives of the participants.

Getting this balance right early on can materially influence long-term outcomes.

Final thoughts

A cell captive can be a powerful structure when aligned with the right portfolio, partners and long-term objectives. However, it is not simply about the structure itself-the design, governance and risk framework are equally important.

For brokers and UMAs considering this path, having the right conversations early-particularly around risk, scale and sustainability-can make a meaningful difference.

Reinsurance Solutions is a reinsurance brokerage focused on supporting insurers, UMAs and cell captive clients with structuring, placement and strategic advisory across South Africa and selected African markets.