Insurance Path to Partner 2026: Made and Bought Near the Market's Rate

A managing partner weighing an insurance partner hire usually asks two things: will our own associates get there in time, and should we stop waiting and buy. Sartori & Partners data on insurance law partner promotion give an unusually plain answer to both. In the 12 months to May 2026, insurance and reinsurance groups promoted 0.82 lawyers to partner for every lateral partner they hired, close to the market's 0.79. Over the past 5 years, the median insurance partner reached the title 10.0 years after starting practice, the same as the 10.0 years for all practices. Few practices sit this close to the benchmark on both counts at once. Insurance runs the market's partner track in miniature, and that moves the hiring question away from timing and onto who is doing the hiring.

The make-or-buy ratio is the clearest sign. Sartori & Partners recorded 147 promotions to partner involving insurance and reinsurance between June 2025 and May 2026. Set against lateral partner hires of the same months, that comes to 0.82 promoted partners per lateral partner. Across the whole market, 2,955 promotions met 3,749 lateral partner hires, a ratio of 0.79. The practices around insurance do not all share that balance. Product liability, which appears on 16.1% of insurance lateral moves, ran at 0.75, leaning a little further toward the lateral market. Litigation, present on 84.7% of insurance moves, ran at 0.80. Elsewhere the spread is wide: employment promoted 0.95 partners per lateral partner and restructuring 0.47. For a firm, the balance means neither route is the exception in insurance. A group that fills a partner seat from outside is doing about what the market as a whole does, and a group that waits for its own associates is not swimming against the practice either.

Speed tells the same story as the ratio. The middle half of insurance partners was promoted between 9.0 years and 12.0 years after starting practice, the same band as the market's 9.0 years to 12.0 years. Within 12 years, 76.3% of insurance partners had made it, against 75.4% across all practices, a gap of 0.9 points. At the fast end the practice sits slightly behind: 22.5% were promoted within 8 years, against 23.2% for the market. The average insurance partner took 11.1 years, against 11.1 years. These figures rest on 485 insurance promotions with a known first year of practice, enough to read the shape with some confidence. The nearest neighbor runs a longer tail: in product liability, 72.4% of partners were promoted within 12 years. For a firm reviewing its insurance associates, this removes one common argument. An associate who reaches the 10.0 years mark without a decision is at the median, not behind it, and a firm cannot point to a slow or fast insurance track to justify a lateral hire.

Where insurance does depart from the benchmark is in the lateral market itself. In the Sartori & Partners lateral database, partners accounted for 30.5% of insurance lateral moves in the 12 months to October 2026, against 27.7% for all practices. Counsel took 16.2% against 12.7%, and associates 52.7% against 58.5%. The lateral window runs to October 2026 and the promotion window to May 2026, so this mix describes who moves, not a second make-or-buy measure. Insurance laterals also step up more often on the way: 16.5% joined at a higher title than the one they left, against 12.9% market-wide. A balanced ratio therefore sits on top of a move market that is heavier at the senior end. A firm buying insurance partners will meet a deeper field of movers than the practice's size suggests, and part of that field will be counsel and senior associates taking the partner title on arrival.

On settled 12-month windows, insurance lateral partner hiring held flat (+14.5%), at 189 partners against 165. The percentage looks large, but on counts this small chance alone can produce a gap of that size, so it does not count as a real change. The market's lateral partner hiring rose 8.4% over the same windows, at 3,858 against 3,558. Insurance is not riding the wider lateral upswing; its partner traffic is steady at a level that already gives partners a larger slice of moves than elsewhere. For planning, the supply of insurance partners willing to move is neither tightening nor expanding fast, and a search opened now meets much the same field as one opened a year ago.

When the clock and the ratio both match the market, what separates one insurance partner hire from another is the firm on the other side of it. Partner hiring in insurance runs through a narrower group of firms than the market: the top 10 hirers took 32.1% of insurance lateral partner moves, against 13.5% market-wide. The size of the hiring firm sets insurance apart as well. Firms of 1,000+ lawyers took 46.1% of insurance lateral moves, against 53.6% in the market, while firms under 150 lawyers took 15.1% against 9.7%. Promotion speed, by contrast, barely shifts with firm size: across all practices, 74.6% of new partners at firms of 1,000+ lawyers were promoted within 12 years, and 74.4% at firms under 150 lawyers. So a candidate's years of practice are a weak signal in an insurance search. The platform, the panel relationships it supports and the rival bidders are the strong ones. The firms that hired the most lateral insurance partners in the 12 months to October 2026 are listed below.

Treat the insurance partner decision as a question of fit, not of time. The internal track delivers at the market's pace, a median of 10.0 years with 76.3% of partners made within 12 years, so a firm whose insurance associates are on that schedule has no timing reason to buy. A firm that buys anyway is still in line with the practice, which promotes 0.82 partners for each lateral partner it hires. The real test of a lateral is whether the candidate brings carrier relationships, a coverage or reinsurance specialty, or a regional desk that the internal candidates cannot supply within that window.

On the buying side, expect competition from the firms that concentrate insurance partner hiring and from smaller platforms, which take 15.1% of insurance lateral moves against 9.7% in the market. Expect also that a sizable group of candidates will be counsel or senior associates seeking the title on arrival, since 16.5% of insurance laterals moved up a level. Price the hire against the firm that would otherwise win the candidate, not against how long your own bench would take to produce one.