Making Partner in London: Private Equity Fast, Litigation Slow

The question of how long to make partner in London has two answers, one set by the practice and one by the city. Sartori & Partners data show that 36.2% of the private equity lawyers promoted to partner in London over the last 5 years got there within 8 years of their first year of practice, against 10.7% of the city's litigators. London as a whole sits between the two: its median new partner had 11.0 years of practice behind them, and 18.7% were promoted within 8 years.

Each practice figure covers the partners promoted in that London practice over 5 years, and the clock is measured on a base of cases: 127 in private equity and 214 in litigation, for example. UK lawyers qualify by a shorter route than US lawyers, so London is set here only against Manchester, the one other UK city with a published promotion clock. Promotion figures run to May 2026, the last complete month.

Private equity is the quickest route in London, and quicker here than in the practice as a whole. Within 8 years, 36.2% of London private equity partners had been promoted, against 31.8% for private equity partners across every market we track, and 92.1% were through within 12 years. The London median is 9.0 years and the fastest quarter needed 8.0 years. For one practice in one city the base is solid: 194 partners promoted over 5 years, 127 of them timed.

Funds work follows close behind. In funds and investment management, 31.8% of London partners were promoted within 8 years, against 24.0% for the practice in all markets, with a median of 10.0 years. That reading rests on 66 cases, so it gives the direction more than an exact rate. London also carries unusual weight in private equity: it accounted for 14.2% of all private equity partner promotions in the 12 months to May 2026, against 8.7% of partner promotions across all practices.

That changes how a hiring firm should read a senior associate. A London private equity associate not promoted within 8 years sits behind the 36.2% of peers who were, a larger group than in any other London practice measured here, and is more likely to take a call. A firm that cannot promote on this clock should expect to hire partners laterally, or to see its strongest associates leave for firms that can.

Contentious and infrastructure work runs on a slower London clock. In the Sartori & Partners promotion records, 10.7% of London litigation partners made it within 8 years, against 21.1% for litigators in all markets. The London median is 12.0 years, against 10.0 years for the practice overall, and even the fastest quarter needed 10.0 years. Private equity partners in London were promoted within 8 years 3.4 times as often as litigators.

This is not a thin group. Among the six practices measured here, litigation is London's largest source of new partners: 356 promoted over 5 years and 68 between June 2025 and May 2026. Yet London holds only 5.6% of litigation partner promotions in all markets, well under its share in private equity.

Construction and projects belong to the same slow group. In construction, 12.2% of London partners made it within 8 years, against 26.0% for the practice in all markets, though on 41 cases the London figure is a rough size. Projects and infrastructure shares the longest median of the London practices measured with litigation, 12.0 years, against 11.0 years for the practice overall, and the slowest quarter of its new partners waited 14.0 years or more.

For a firm hiring in these teams, the slow clock is both a retention tool and a recruiting risk. A litigation associate offered a clear path near the all-market median of 10.0 years is offered a shorter wait than the London norm for the practice. Partner seats that must be filled this year are more likely to come from the lateral market, and in projects the city already leans that way.

On early promotion, banking and finance runs almost exactly on the London line. Within 8 years, 19.6% of London banking partners were promoted, against 18.7% for the city overall, with a median of 11.0 years against 10.0 years for banking partners in all markets. Sartori & Partners counted 43 banking partner promotions in London between June 2025 and May 2026, against 42 in private equity and 68 in litigation, or 12.5% of banking partner promotions in all markets.

Banking is also where London buys most. In the 12 months to October 2026 it took 25.1% of lateral partner moves into the city, an index of 162 against its share of the whole market. Projects and infrastructure, tied with litigation for the slowest promotion clock in this group, shows an index of 141, while litigation, the city's largest promotion source, stands at 48.

Across all practices, London firms promoted 0.64 lawyers to partner for each lateral partner hired in the 12 months to May 2026, against 0.79 in the whole market. In projects, a slow internal clock and heavy lateral demand point the same way: partners are bought, and they are scarce. In banking, where early promotion matches the city rate, a firm that promotes on time can lean on its own associates instead of bidding in the city's busiest lateral market.

Manchester is the only UK comparison the data allow, and it rests on a small base: 50 promotions timed over 5 years, against 849 in London. With that caution, the median Manchester partner was promoted after 13.0 years of practice, against 11.0 years in London, a gap of 2 years.

The gap opens early and widens. Within 8 years, 12.0% of Manchester's new partners had been promoted, against London's 18.7%. Further out: within 12 years, 72.7% of London's new partners were through, against 46.0% in Manchester, and the slowest quarter in Manchester waited 17.0 years or more, against 13.0 years in London.

Manchester also leans the other way on make or buy. Its firms promoted 23 lawyers to partner between June 2025 and May 2026, 0.88 for each lateral partner hired, against 0.64 in London. We compare London with Manchester alone, not with US or Canadian cities, because each country dates the start of practice by its own qualification route.

For a firm with offices in both cities, a Manchester associate not yet promoted within 12 years is on a common local path, not a stalled one, and a London team recruiting that lawyer can offer a shorter typical wait as part of the case. A London associate weighing a move north should expect a longer tail, on the evidence of a small group.

Read each London candidate's seniority against the practice, not the city average. The city's median of 11.0 years blends a private equity group where 36.2% made partner within 8 years with a litigation group where 10.7% did. A litigator not promoted within 8 years is on the normal London path; a private equity associate in the same position trails the city's fastest promoted peers and is more open to a move.

Plan partner supply practice by practice. In private equity and funds, a firm can promote its own associates on a short clock and should budget for departures if it does not. In litigation, construction and projects, where the median reaches 12.0 years in projects, seats needed soon are more likely to be filled laterally, and the city-wide figure of 0.64 promotions per lateral partner hire shows how far London already relies on that route.

Treat banking on its own terms. With 43 promotions in the 12 months to May 2026 and the highest lateral partner index in the city, it shows the most promotions among the deal practices measured here and the most contested lateral market. A firm that keeps banking associates on a predictable track avoids competing in that market for partners it could have grown.