An agency that places 40% of its premium with one carrier has a relationship worth having and a dependency worth pricing. The contingent commission that relationship earns may be a large part of the agency's income; the appointment may not transfer on the same terms; and one carrier's appetite change can move a sizeable piece of the book.

This post stays with the illustrative Prairie Lantern Insurance Group, where one invented carrier, Quillmark Mutual, writes 40.2% of premium and the top three carriers write 74.2% of $22.78M. Carrier names here are invented for the demo.

Use case card
ActorsDeal lead, practice leader, the acquirer's carrier-relations team
TriggerAnalyze at the analysis stage
Agency IllustrativePrairie Lantern Insurance Group — top carrier 40.2% of premium
Agents involvedConcentration analyst, carrier mapping agent, revenue quality analyst, supervisor agent
Controls that fireCARRIER_CONCENTRATION (one carrier over 35% of premium — refer), UNAPPOINTED_CARRIERS (over 20% of premium with carriers the acquirer isn't appointed with — warn)
Decisions and authorityAppointment requests (deal lead), the sign-off (practice leader)
OutcomeThe dependency and the contingent agreement checked before pricing; appointments requested for the gaps
What is measuredCarrier shares of premium; top-three share; premium by appointment status; contingent income by carrier

Premium for concentration, revenue for value

Carrier concentration is measured on premium — what the carrier writes — because that is what an appetite change moves. Producer and client concentration are measured on revenue, because that is what an acquirer buys. The engine keeps both and every finding says which it used.

Workspace · Carriers
The Carriers zone for an illustrative agency with one dominant carrier
Carriers on the illustrative Prairie Lantern: one carrier with 40.2% of premium.
flowchart LR B["Book rows"] --> P["Premium by carrier"] P --> T{"Top carrier
over 35%?"} T -->|"40.2%"| CC["CARRIER_CONCENTRATION
refer"] P --> A["Against the acquirer's
appointments"] A --> U{"Not fully appointed
over 20%?"} U -->|"22.4%"| UA["UNAPPOINTED_CARRIERS
warn"] B --> CI["Contingent income
by carrier"] CC --> Q["Questions for the seller:
contingent agreement,
appointment transfer"] CI --> Q style CC fill:#fdecec,stroke:#e57373 style UA fill:#fff4e2,stroke:#f4a03a

Step by step

A dominant carrier, checked before pricing Prairie Lantern Insurance Group, illustrative.
1
Carrier sharesconcentration_agentAnalyze

Quillmark Mutual writes 40.2% of premium; the top three write 74.2% of $22.78M. Cited to 530, 244 and 139 rows.

2
Appointment overlapcarrier_mapping_agentAnalyze

22.4% of premium sits with carriers the acquirer isn't fully appointed with: two appointed in some states, three not appointed.

3
Controlssupervisor_agentAnalyze

CARRIER_CONCENTRATION refers to the practice leader: check the appointment and the contingent agreement before pricing.

4
Seller questionsDeal leadDay 2

Is the contingent agreement with the dominant carrier assignable? What did it pay in each of the last three years? Does the appointment survive a change of control?

5
Appointments requestedDeal leadDay 3

Accepting the carrier mapping agent's prepared decision records the requests for a person to send.

6
Sign-offPractice leaderBefore IC

Answered on the decision record, with what the seller said about the contingent agreement.

What the seller is asked

QuestionWhy it matters to the price
Is the contingent agreement with the dominant carrier assignable?If not, the contingent income it pays is not part of what is being bought.
What has it paid in each of the last three years?Contingent commission moves with the carrier's loss ratio; one good year is not a run rate.
Does the appointment survive a change of control?A new appointment can take weeks; renewals do not wait.
Has the carrier signalled an appetite change in the agency's main classes?40% of premium can move with one underwriting guideline.
sequenceDiagram participant Lead as Deal lead participant RU as InsightRollup participant PL as Practice leader participant Seller RU-->>Lead: CARRIER_CONCENTRATION referral and the finding with its rows Lead->>Seller: Contingent agreement, three years of payments, change-of-control terms Seller-->>Lead: Documents to the data room Lead->>RU: Upload, the playbook's carrier items read them PL->>RU: Sign-off with a note (decision record)
AgentWhat it preparedWhat it citesWho decides
Concentration analystQuillmark Mutual writes 40.2% of the book's premium; the top three write 74.2%530, 244 and 139 book rowsDeal lead
Carrier mapping agent22.4% of premium with carriers the acquirer isn't fully appointed with; appointment requests preparedRows per carrier; the acquirer's appointments by stateDeal lead
Supervisor agentPractice leader sign-off: three controls firedThe controlsPractice leader
SectionHitOutcome
CarriersCARRIER_CONCENTRATION: top carrier 40.2% of premiumrefer
CarriersUNAPPOINTED_CARRIERS: 22.4% of premiumwarn
Key peopleKEY_PRODUCER: top producer 32.0% of revenuerefer

For the deal team

The carrier questions go to the seller with the shares and the rows behind them, not as a generic checklist.

For IT

The acquirer's appointments are a table keyed by carrier and state; the overlap is a join, recomputed on every Analyze.

For corp-dev leadership

A dependency on one carrier is priced knowingly, with the contingent terms in the data room and a sign-off on record.

Questions we get asked

Are the carrier names real?

No. Every carrier in the demo book is invented. Your deployment uses your appointment data.

Can the threshold be per region?

A rule can be scoped by state in Rules Studio; the shipped control applies everywhere.

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