Concept
In insurance, you can issue policies under someone else's license. An MGA (managing general agent), also known as a coverholder, receives delegated underwriting authority—the right to underwrite and issue policies on the "paper" of a licensed insurer under binding authority. In the Lloyd's market, this is a coverholder working with a managing agent. This is the insurance vertical of the same license-rental pattern as BaaS in banking, agents in payments, and host AIFM in funds—general overview in embedded finance.
Fronting is when a licensed fronting carrier provides the "paper" (a policy under its license and rating), while the agreed share of insurance risk is transferred through reinsurance to a reinsurer or to a proprietary captive. The MGA brings in and services the business; the carrier provides the license and rating; the reinsured share passes to the reinsurer, while the carrier keeps its policy obligations and any agreed retention.
Where it comes from: the model grew up with program business and the excess-and-surplus (E&S) market. As specialist MGAs multiplied, they needed licensed paper and a rated balance sheet without becoming insurers themselves, and a class of fronting carriers formed to supply exactly that. Conning estimates US MGA direct written premiums at US$114.1 billion for 2024; the market figures and their different scopes are set out below.
How It Works
Three roles. The MGA sells, underwrites within the mandate, and services policies and claims. The fronting carrier issues the policy under its license and A-rating, so the policy is accepted by clients and counterparties. The reinsurer or captive assumes the agreed reinsured share of the economic risk. Everything is tied together by binding authority (binder)—an agreement that describes exactly what the MGA is authorized to sign on behalf of the carrier. The diagram below shows who issues the policy, who holds the risk and who answers to the regulator.
What You Need to Launch
Model Act #225 requires producer licensing; additional MGA licensing or registration depends on enacted state law. Arrange the carrier and binder, applicable surety bond and any required E&O. The table describes the model’s requirements, subject to state implementation.
| Element | Requirement |
|---|---|
| Licenses | producer licence; additional MGA licence/registration where state law requires |
| E&O (errors & omissions insurance) | at the carrier's discretion — the Model Act permits an insurer to require E&O but sets no fixed amount (§4H) |
| Surety bond | at least $100K or 10% of the annual premium the MGA produced for that insurer in the prior year, whichever is greater, capped at $500K per insurer (Model Act §4G) |
| Contracts | written MGA–insurer agreement allocating responsibilities (Model Act §4); other contracts follow the program structure |
| Infrastructure | fronting carrier + binding authority (binder) |
Compliance
Obligations are defined by the binder: permitted lines, territory, limits, commission rates, bordereaux reporting (regular registers of issued policies and claims), carrier audit rights, and termination conditions. The carrier is obligated to substantively control the program: verify underwriting, reporting, and claims settlement, as well as collateral supporting reinsurance recoverables. After Vesttoo, collateral verification and operational oversight have been tightened.
How It's Done in the Market
Fronting carriers commonly used to open programs include Clear Blue, Trisura, Accredited, State National (Markel), MS Transverse (MS&AD), Knight and Sutton National. Ownership moves fast: Accredited became independent under Onex in 2024 after parent R&Q went into liquidation, and Transverse now sits inside MS&AD as MS Transverse. The field is mapped in the carrier catalog below. The economics are commission-led: the MGA earns commission on the premium it writes and may also share in program profit — where it can influence that profit through reserving or claims, Model Act #225 §4L defers interim profit shares for one year on property and five years on casualty business and until they are verified — while the carrier charges a fronting fee and holds agreed collateral supporting ceded liabilities.
What to look for when choosing a fronting carrier: rating and admitted/non-admitted status (determines where you can sell), collateral requirements, depth of operational control (higher after Vesttoo), binder terms—audit and termination, willingness to work with your lines and volumes. Delegated authorities at Lloyd's and fronting practice provide guidance on deal structure.
Fronting Carriers: Who's Who
The carriers themselves deserve a closer look. MS Transverse expressly offers retained-risk capacity, while Trisura describes a highly reinsured program model. Retention and collateral are negotiated for the program; there is no universal 10–30% rule. Reinsured obligations can be supported by letters of credit, trust accounts or funds withheld. If the reinsurer fails to pay, the obligation to the policyholder stays with the carrier, which is why the quality and verifiability of collateral matter as much as the fronting fee itself.
The Carrier Catalog
The carriers that open most programs, set side by side on the points a program owner checks first: who owns the paper, how much it writes, what rating it carries and where it operates.
| Carrier | Owner | 2024 premium | AM Best rating | Footprint | What stands out | US admitted / E&S paper — checked 26 September 2026 |
|---|---|---|---|---|---|---|
| State National | Markel (since 2017, $919M) | About US$3.64B gross premium volume (Markel 2024 Form 10-K) | — | US | Largest fronting carrier | Admitted: State National Insurance Company, National Specialty Insurance Company, City National Insurance Company. E&S: United Specialty Insurance Company; the page also names Independent Specialty Insurance Company, which Markel sold to Velocity in June 2023 according to its 2024 Form 10-K. Group advertises access across all 50 states; confirm the writing entity and line for the program. |
| MS Transverse | MS&AD (January 2023, ~US$400M plus earnout) | MS Transverse Specialty only (NAIC 41807): US$1.865B national direct premium; US$1.903B gross premium. One entity, not a group fronting total | A+ (upgraded 2025) | US | Hybrid model with retained risk | Admitted example: MS Transverse Insurance Company, NAIC 21075, active in Missouri. E&S: MS Transverse Specialty Insurance Company, NAIC 41807, on the Texas eligibility list. Group offers both markets; one entity’s admission does not cover its affiliates. |
| Accredited | Onex (28 June 2024; US$420M cash consideration, 2024 SFCR) | Over US$2.1B, 70+ programs | A- | US, UK, Europe | Sold out of the R&Q liquidation | Admitted example: Accredited Surety and Casualty Company Inc., NAIC 26379, active in Missouri. E&S: Accredited Specialty Insurance Company, NAIC 16835, on the Texas eligibility list. Check the chosen company in each target state. |
| Clear Blue | — | About US$1.67B DPW | A- (affirmed November 2023) | US | Vesttoo exposure; US$25M recapitalisation; suing China Construction Bank | Admitted example: Clear Blue Insurance Company, NAIC 28860, New York writing powers. E&S: Clear Blue Specialty Insurance Company, NAIC 37745, on the Texas eligibility list. Group-wide nationwide marketing is not an entity-by-entity licence schedule. |
| Trisura | Trisura Group (Canada) | US$1.40B DPW | — | US, Canada | Canadian group with US fronting operations | Connecticut’s June 2026 list distinguishes Trisura Insurance Company (22225, property/casualty) from Trisura Specialty Insurance Company (16188, E&S). The 2025 AIF reports admitted capacity in 49 states and E&S in 50 for the US platform; check the exact entity and line rather than assume universal admission. |
| Sutton National | — | Over US$1B | — | US | — | Sutton National Insurance Company is admitted; Sutton Specialty Insurance Company supplies E&S capacity. The group publishes separate state maps: admitted, May 2026 and E&S eligibility. Match the chosen company and class to the target state. |
| Accelerant | — | Over US$1B | — | — | One of four fronting companies (with Sutton, Transverse and State National) that Conning counts above US$1B of 2024 premium | Accelerant National Insurance Company, NAIC 10220, is authorised and domiciled in Delaware; Accelerant Specialty Insurance Company, NAIC 16890, is an Arkansas-domiciled surplus-lines insurer. This disclosure does not establish each entity’s authority in every other state. |
| Knight | — | — | — | US | — | Admitted example: KnightBrook Insurance Company, NAIC 13722, active in Missouri. E&S: Knight Specialty Insurance Company, NAIC 15366, on the Texas eligibility list. These are separate companies; check other states and classes individually. |
Three conclusions follow from the grid. Ownership changes faster than programs do: two of the largest carriers changed hands in 2023–2024, and a binder signed with one owner is administered by the next, so a change-of-control clause in the binder matters as much as the rating. The rating column is the one clients see, and two carriers on the list have been at A- — the floor many commercial buyers and lenders accept — including one whose rating was affirmed only after a recapitalisation. The table does not establish a comparable market-share ranking. For a new program, compare actual underwriting appetite, retained risk and collateral terms in the proposed binder rather than inferring them from premium volume alone. The premium column contains historical figures with different scopes. The MS Transverse entry now identifies one legal entity and must not be read as the group’s fronting total or as a directly comparable ranking. Its 2024 figures come from the 2024 column of FSLSO’s Q3 2025 report. The new licensing column uses the named carrier disclosures and state records; the E&S entries identified as Texas-listed are supported by SLTX’s eligible-insurer list. Admission and surplus-lines eligibility are different routes. Neither a group name nor an AM Best rating authorises every company in every state or class; check the exact policy issuer, target state, permitted line and applicable placement requirements.
The Market in Numbers
Conning’s June 2025 fronting study release estimates 2024 gross written premiums at US$19.6B, up 26%. Its separate 2025 MGA study estimates US MGA direct written premiums at US$114.1B, up 16%. These are different market measures: fronting gross premiums and MGA direct premiums must not be treated as interchangeable or added together. The carrier figures in the table also have different entity and business scopes.
Vesttoo in numbers: on the first interim report of the board's investigation, filed with the US Bankruptcy Court for the District of Delaware on 7 September 2023, almost US$3.36B of standby letters of credit were implicated as forged — US$2.81B on China Construction Bank, US$362.5M on Standard Chartered and US$186M on Santander. The round "US$4B" of the headlines is the upper estimate of total LoC volume, not the figure in the report. By ALIRT Insurance Research's count, roughly 20% of the letters of credit held by the fronting carriers it tracks were China Construction Bank paper of the kind Vesttoo used, and Aon booked a US$197M legal settlement expense for Vesttoo-related claims in its fourth-quarter 2023 results. Hence the "penny tests" — drawing a nominal amount to confirm the bank even knows the letter of credit exists.
The Fintech Analogy
The fronting carrier has a direct structural analogue — the sponsor bank in BaaS: a neobank without its own licence issues cards and accounts on a sponsor bank's paper and BIN, exactly as an MGA issues policies on a carrier's paper. In both cases the licensed entity answers to the regulator and the client, charges a fee and must genuinely supervise its partner — the same logic that underpins embedded finance.
Applicable Regulation
In the US, NAIC MGA Model Act #225 is a model for state legislation: producer licensing, written MGA–insurer contracts, a surety bond and E&O at the insurer’s discretion. The enacted state rules control. The NAIC model-law index provides the wider framework. In London the parallel is the delegated authority regime at Lloyd's, where a coverholder binds business under a managing agent's licence. The Vesttoo lesson reached fronting carriers first through their ratings: in July 2023 AM Best began reviewing the collateral arrangements of the fronting carriers it rates. Some states go beyond the model: Louisiana's 2024 HB 672 requires an MGA to send each insurer a quarterly account report and to notify the state insurance department of specified events.
| Pros | Cons |
|---|---|
| Issue policies without your own insurance license and capital for risk | The carrier is responsible for the program before the regulator; it controls tightly |
| Access to the fronting carrier's license and rating | Fronting fee and collateral requirements reduce economics |
| Commission income on written premium, plus any agreed profit share | Dependence on carrier and reinsurer; binder can be terminated |
| Flexibility on lines and territories through binder | After Vesttoo—higher collateral and operational oversight requirements |
Why It Matters for a Family Office
For a family office the appeal is access without a balance sheet. A captive or a program built on fronted paper lets the family underwrite its own exposures — property, marine, specialty liability, even parts of life cover — and reach the reinsurance market directly, where the price is actually set. It pairs with insurance-based wrappers such as PPLI and with life insurance as a succession tool, so cover sits inside the holding and succession plan rather than alongside it.
The EU and UK Picture
Outside the US the same pattern runs through different plumbing. At Lloyd's the MGA is a coverholder: a managing agent delegates binding authority, the binder fixes classes, territory, line size and capacity, and the coverholder is listed on Lloyd's register and audited against it. In the UK an MGA is either directly FCA-authorised or an appointed representative of a principal, answering to the FCA as a distributor and, where it binds for Lloyd's syndicates, to Lloyd's as an approved coverholder. In the EU delegated underwriting runs under the Insurance Distribution Directive, with intermediaries passporting across the bloc and the risk carried by an EU-licensed insurer that reinsures or fronts behind the scenes.
The bargain is straightforward: rent a licence and a rating, keep the underwriting, and cede the agreed share of risk to a reinsurer or your own captive. It holds only while the collateral behind that risk is real. Vesttoo is what happens when it is not — and it is why the carrier whose name sits on the policy now insists on real control over the program it fronts and on collateral it can verify.
Q/A
Do you need your own insurance license to open an MGA?
A full insurer licence is different. The MGA needs producer licensing and any additional state-specific MGA licence or registration; the carrier issues the policy under the written MGA–insurer agreement and binding authority.
Who bears the insurance risk in fronting?
The reinsurer or captive bears the share it assumes. The carrier can retain underwriting risk and still owes the policyholder if reinsurance is not recovered. Trisura’s annual report makes that distinction explicit. Collateral supports recoverables; it does not extinguish the carrier’s policy obligation.
What did the market learn from the Vesttoo case?
In 2023, forged standby letters of credit totalling approximately $3.36 billion, issued as collateral for reinsurance, were uncovered — $2.81 billion of it on China Construction Bank paper. After this, AM Best began reviewing the collateral arrangements of the fronting carriers it rates, and carriers tightened collateral verification and now require operational control over programs, not just providing "paper."
Why is a fronting carrier needed if the reinsurer holds the risk?
The reinsurer or captive often lacks an admitted license and rating in the required states. The carrier provides the paper, rating, and regulatory access, receiving a fronting fee and retaining any agreed share of risk.
Who is liable if the reinsurer fails to pay?
The carrier remains liable under its policy. Its negotiated retention and its exposure to a reinsurer’s default are separate risks. Collateral may reduce the latter, but a failed recovery or worthless collateral does not remove the policyholder’s claim against the carrier.
How long does it take, and what does it cost, to launch a fronted program?
Plan in months. The time goes into applicable producer/MGA licensing, the binder negotiation with the fronting carrier, and the reinsurance or captive that actually holds the risk. Recurring costs are the fronting fee, collateral for reinsurance recoverables, required E&O and the applicable surety bond, plus the carrier's audit and oversight, which have grown heavier since Vesttoo. It is far lighter on capital than owning an insurer, though the licences, fees and collateral are real.