Professional indemnity (PI) insurance in the United Kingdom is placed through one of two markets, and sometimes through both on the same risk. The Lloyd's market operates as a society of members underwriting through syndicates on a subscription basis. The company market consists of insurance companies that write risk directly. The structural difference matters — it affects capacity, claims handling and financial protection.
Lloyd's of London is a society of members constituted under the Lloyd's Act 1982. It is not itself an insurance company. Members provide capital to syndicates, which are annual ventures managed by managing agents. Underwriters at each syndicate accept a percentage of a risk by signing a slip prepared by a broker. A leader takes the largest line and sets the terms; followers subscribe on the same wording.
Two features distinguish the Lloyd's market. The first is capacity for specialist and non-standard risks — syndicates compete for expertise in areas company underwriters may decline, including construction professional risk and financial institutions PI. The second is the Lloyd's Central Fund, a mutual protection mechanism that stands behind every policy issued at Lloyd's. If a syndicate is unable to meet its liabilities, the Central Fund steps in. Lloyd's overall carries an A+ financial strength rating from Standard & Poor's.
Company market insurers are limited companies authorised by the Prudential Regulation Authority and regulated for conduct by the Financial Conduct Authority. Household names — Aviva, AIG, Allianz, Hiscox, QBE and others — underwrite PI risk directly. On a given placement a company insurer may accept the whole exposure itself, or it may subscribe alongside other companies (or alongside Lloyd's syndicates) as part of a co-insurance arrangement.
The advantages of the company market are practical. The broker deals with one balance sheet on that layer, claims run through a single team, and the relationship is direct. Financial strength varies by carrier — most PI-active companies hold A or A+ ratings from AM Best or Standard & Poor's, but ratings should be checked at each placement. Company insurers operate under the Solvency II framework, which sets capital requirements calibrated to the risks underwritten.
Whether the placement sits at Lloyd's or in the company market, larger PI limits are commonly built on a subscription basis. A slip is prepared setting out the risk, the terms and the wording. The leader signs first and its terms bind the followers. Followers accept a stated percentage of the risk on those same terms. Claims are handled by the leader on behalf of the market, with followers bound by the leader's decisions within agreed protocols. For a policyholder that means one point of contact at claim, even where a dozen underwriters share the exposure.
Broker market choice on a PI placement depends on the complexity of the risk, the capacity required, the ratings the client is willing to accept, and the relationships each market offers on that class. A straightforward mid-sized accountants' PI or independent financial adviser PI risk with a £2 million limit may be placed comfortably in the company market with a single insurer. A larger architects' PI or surveyors' PI programme carrying construction exposure may be better suited to Lloyd's, where syndicate appetite for professional construction risk has historically been deeper.
Under ICOBS 4 an intermediary must disclose to the client the basis on which the risk has been placed, including the identity of the insurer or insurers and the broker's remuneration arrangements. Apex Insurance Brokers documents that market rationale on every placement.
The example below is illustrative only and does not describe any particular client or transaction.
A mid-tier architectural practice requires £10 million of PI cover. The broker approaches the market on two tracks. In the company market, two A-rated insurers quote a stacked programme — £5 million primary from insurer X, £5 million excess from insurer Y. At Lloyd's, a syndicate leader offers to take 40 per cent of a £10 million line on a single wording, with three follower syndicates subscribing for 25 per cent, 20 per cent and 15 per cent respectively.
The client selects the Lloyd's placement for three reasons. First, a single limit and a single wording avoids the layering complications that arise when a claim moves between primary and excess. Second, the Lloyd's Central Fund provides a backstop that no individual company insurer, however well rated, can match on its own. Third, on this occasion, the Lloyd's premium is competitive with the stacked company-market alternative. The broker documents the reasoning, discloses the leader and followers, and records the market comparison on file.
Both markets are regulated for consumer protection and financial stability. Both operate under UK insurance contract law, including the Insurance Act 2015. Both accept the duty of fair presentation from commercial clients. The differences are structural, not qualitative. The role of the broker is to match the risk to the market that fits it, and to document why.
Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority. Firm reference number 724952. This entry is general information, not advice on any particular policy.