Boston Lateral Partner Hiring 2026: Top 10 Firms Take 50.0%

Boston lateral partner hiring is a market of few buyers. Sartori & Partners data show that the top 10 hiring firms took 50.0% of the lateral partners who joined Boston offices in the 12 months to October 2026. New York's top 10 took 26.1% of its partner arrivals and San Francisco's 32.4%. For a firm that wants to add a partner in Boston, the competition for each candidate is a short, nameable list of rivals, and a single team hire by one of them can take a large part of a practice's supply for the year.

Boston's top 10 partner hirers took 50.0% of the city's lateral partner arrivals, 3.7 times the share the market's own top 10 holds nationally. Any single city will read more concentrated than the whole market, because fewer firms hire there. The fair test is city against city, and Boston still stands apart: its figure is 1.9 times New York's and 17.6 points above San Francisco's.

The concentration is a partner-level effect. Across all levels, Boston's top 10 hirers took 29.7% of lateral moves into the city, so the gap between all hiring and partner hiring is 20.3 points. In New York the same gap is 4.6 points. Hiring at all levels spreads across more employers; partners land with fewer. A firm planning a Boston partner search should expect to meet the same handful of bidders on most candidates it approaches.

Concentration here does not mean volume. In the Sartori & Partners lateral database, Boston firms hired 97 lateral partners in 12 months. The three most active partner hirers, Reed Smith, Shipman & Goodwin and Merchant & Gould, each sit in the 6-10 band, and the next seven in the 3-5 band. A small absolute number of moves decides who ranks where.

Team moves sit on top of this. Lateral hires that arrived as part of a group joining the same firm made up 3.3% of Boston moves, against 1.5% across the market. The firm rankings here count individual hires only, so a team that joins one firm adds to its Boston bench without lifting its rank. In all, 104 firms made at least one lateral hire in Boston over the year, against 149 in San Francisco and 310 in New York, so the pool of buyers is narrow to begin with. A single group hire can absorb much of a practice's supply in a quarter, and a firm that waits for the market to settle may find the people it wanted already placed.

Set the two lists side by side and seven firms appear on both. The largest hirer at all levels, DLA Piper, in the 11-20 band, is absent from the partner list, as are Ropes & Gray, ranked 4th, and Kirkland & Ellis, ranked 9th. Goodwin Procter ranks 2nd at all levels, in the 11-20 band; on the partner list, Goodwin Procter ranks 7th, in the 3-5 band. Three firms go the other way: Shipman & Goodwin, White & Case and Foley Hoag rank among the partner hirers without making the all-level top 10.

The practical reading: headcount growth in Boston is only a partial guide to partner appetite. Associates made up 57.5% of all Boston moves, and the firm that hires the most lawyers at all levels does not appear among the partner buyers at all. Most active partner buyers do hire in volume too, but a few firms buy partners without a matching intake below them, and their reasons are narrower than headcount. A firm sizing up its rivals for a partner should read the partner list first, and treat the all-level list as a guide to who is building, not to who is bidding.

Intellectual property partners made up 24.7% of Boston's lateral partner arrivals, against 9.2% nationally, an index of 269. San Francisco runs at a similar 288; New York sits at 74, below the market. Corporate partners over-index in Boston at 130, while litigation, the largest practice everywhere, sits at 89.

In headcount, Boston firms took 24 intellectual property partners in 12 months. Spread across a concentrated buyer group, that is a market where most serious candidates will hear from the same few firms. The only other city with a comparable intellectual property tilt is San Francisco, which makes a West Coast search a real option for a Boston seat, at the cost of a relocation conversation.

On settled 12-month windows, Boston lateral partner arrivals came to 92 against 85 a year earlier, a change of 8.2% that is too small on counts this size to read as anything but flat. Partner moves across the market rose 8.4%, from 3,558 to 3,858. Boston's total lateral arrivals rose 23.7%, from 278 to 344.

The growth came below partner level. Partners were 26.6% of Boston's lateral moves, against 27.7% across the market. A steady partner count shared by a small group of buyers means few Boston partners are in motion at any time; a search that waits for candidates to surface will be slow, and one built on direct approaches will move faster.

Sartori & Partners data show Boston firms promoted 83 lawyers to partner in the 12 months to May 2026. Set against lateral partner hires over the same months, Boston runs at 0.81 promotions per lateral partner, close to the market's 0.79. New York, at 0.76, sits near the market too; San Francisco, at 0.55, buys noticeably more of its partners than it makes. The median time to partner in Boston is 10.0 years, the same as New York's 10.0 years.

So the concentration is not a story of Boston firms filling partner benches from inside. The balance between promotion and lateral hiring is ordinary at 0.81; what is unusual is who does the buying, with the top 10 hirers holding 50.0% of partner arrivals. For a firm outside that group, a lateral partner hire in Boston is a contested purchase, and growing the partner from inside is a real alternative to weigh against it.

Map the bidders before the candidates. With the top 10 hirers holding 50.0% of partner arrivals, a firm can name its likely rivals for almost any Boston partner and prepare its offer against them: platform, rate structure, and what the candidate's clients will see on day one.

For intellectual property, plan for a longer search. Demand runs at an index of 269 in Boston, and the one city with a similar tilt is across the country. Corporate partners, at 130, are contested too.

Move early on teams. Group moves make up 3.3% of Boston lateral hiring, more than the market's 1.5%, and partner arrivals are flat. When a team becomes available, the first credible offer often decides it.