How a National Carrier Launched an Excess Casualty Line in 15 Weeks

In the fast-moving Excess & Surplus (E&S) market, launching a new line of business usually takes 12 to 18 months. Between legacy constraints and complex integration requirements, speed-to-market is often more of a goal than a reality.

The High-Stakes Bet

When a national P&C carrier identified a massive opportunity in the Excess Casualty market, they didn’t have a year to wait. They set an aggressive 15-week deadline to stand up a fully functional underwriting workbench across five lines of business: GL, Auto, Employers Liability, Umbrella, and Excess.

The goal was ambitious. The technical requirements, including third-party data enrichment and complex downstream integrations, were daunting.

How Did They Bypass the Traditional Development Cycle?

This case study breaks down the configuration-led strategy that allowed this national carrier to replace manual workflows with a unified backbone in record time, without sacrificing functional depth.

Inside the Case Study:

• The blueprint for a 15-week implementation
• How to handle thin broker data through automated enrichment
• The secret to integrating complex Excel raters directly into a digital workflow

Read the Case Study