What is Excess & Surplus (E&S) Insurance?
Excess and Surplus (E&S) insurance is the non-admitted market that covers risks that admitted carriers cannot or will not write under standard policy forms and rates — including catastrophe-exposed property, emerging technology risks, and distressed accounts — governed by a separate regulatory framework that allows greater pricing and form flexibility.
The E&S market exists because the admitted insurance market — where carriers must file rates and forms with state regulators and gain approval before use — cannot efficiently price and structure coverage for every type of risk. When a risk is genuinely unusual, catastrophe-exposed, or otherwise hard to place in the standard market, it can be exported to the non-admitted or surplus lines market.
Surplus lines carriers are licensed in their home states but are not admitted in the states where they write business. Instead, they operate under surplus lines laws that allow them to write risks "exported" by licensed surplus lines brokers. Before placing a risk in the E&S market, brokers in most states must conduct a diligent search — demonstrating that at least three admitted carriers have declined the risk. Some states have streamlined this for certain classes through exempt commercial purchaser provisions.
Because E&S carriers are not subject to rate and form filing requirements in the state of risk, they can respond faster to market dislocations, price emerging risks more accurately, and structure non-standard coverage forms. This flexibility comes with tradeoffs: E&S policies typically are not covered by state guaranty funds, meaning policyholders bear the insolvency risk of the carrier.
The US E&S market has grown significantly in recent years, driven by hardening in coastal property, social inflation in casualty lines, and the rise of new risk classes like cannabis, gig economy liability, and parametric covers. In 2023, direct written premium in the US surplus lines market exceeded $100 billion for the first time, roughly doubling in five years.
Key E&S hubs include Lloyd's of London (which functions as a non-admitted market in the US), the wholesale broker market concentrated in cities like New York, Chicago, and Atlanta, and a growing number of insurtech MGAs writing on E&S paper.
Most Vortic customers are E&S-focused MGAs writing coastal property, specialty casualty, and hard-to-place commercial risks. Orb's agents are specifically tuned for E&S workflows: the flood and wind zone agents cross-reference FEMA and HVHZ data automatically, the treaty agent checks coastal aggregation limits, and the pricing agent benchmarks against E&S rate indicators. The result is a decision memo structured around the non-standard risk factors that matter most in the surplus lines market.
Frequently asked questions
What is the difference between admitted and non-admitted insurance?
Admitted carriers have filed their rates and policy forms with state insurance regulators and received approval to use them. Non-admitted (surplus lines) carriers have not done so in the state of risk — they can use flexible, bespoke forms and rates but are subject to fewer consumer protections, including exclusion from state guaranty funds.
When should a broker place a risk in the E&S market?
E&S placement is appropriate when the risk has characteristics that make it difficult to place in the admitted market: unusual construction type, severe coastal exposure, prior losses, emerging or unrated risk classes, or the need for non-standard coverage terms. A diligent search showing admitted market declinations is typically required before surplus lines placement.
Is Lloyd's of London an E&S market?
Yes. Lloyd's operates as a non-admitted surplus lines insurer in all US states. Lloyd's syndicates are eligible surplus lines insurers on the NAIC list, and Lloyd's coverholders who write US business are binding on non-admitted paper — meaning their policies carry surplus lines taxes and are excluded from state guaranty fund protection.