AM Law 100 Partner Attrition: Which Firms Have Been Losing The Most Partners?

21 January 2026

Partner attrition can be a key metric of a firm's stability, providing an insight into which firms are effectively growing and retaining talent.


Over the course of 2025, the average rate of Partner attrition across the AM Law 100 rose slightly from 6% to 8%. So are firms across the board struggling to keep hold of Partners or are a few firms in particular causing this spike?


Using publicly-available data tracked by Pirical Legal Professionals (PLP), we've analysed how Partner attrition compares across the AM Law 100.


Note on methodology: data is derived from tracked Partner exits, numbers may be slightly incomplete due to limited public information. Exits include Partners that left but didn't lateral to another firm, eg. retired.


Ranked: Which AM Law 100 Firms Have Had the Highest Recent Partner Attrition Rates?


Firms That Have Improved Their Partner Attrition

A few AM Law 100 firms saw big improvements in Partner attrition in 2025.


BCLP had the largest drop in attrition, falling from 14% to 9%. Hunton Andrews Kurth also saw major gains, with attrition nearly halving to 4% - a change that coincides with the firm’s introduction of a non-equity Partner tier, designed to help retain & attract senior talent.


Akin and Milbank made similar improvements, both firms lowered Partner attrition from 11% to 6% in 2025.

Has There Been Any Politically-Affiliated Attrition?

While exact causation is difficult to prove, some of the firms with the highest increases in Partner attrition were caught up in the US administration's targeting of law firms in early 2025.


As Bloomberg Law reported, 4 firms fought the executive orders placed against them, while 9 firms reached settlements in which they promised to provide a total of $940 million in pro bono legal services. A sample of the firms involved shows that most of them saw seen Partner attrition increase in 2025 (compared to 2024).

Bar graph showing partner attrition rates of law firms impacted by executive orders in the US.

Which Practice Groups Have Seen the Highest Rates of Partner Attrition?

Relative to total AM Law Partner headcount, Insurance (18%) has the highest attrition rate of any major practice group. It's also the only practice group with above average attrition (15%).


So if you're recruiting for your firm's Insurance practice, you're facing some of the highest Partner attrition rates in the industry.

Bar graph showing partner attrition rates from Sept 2021 to Sept 2023 for US law firms. Insurance has the highest rate.

Which Cities Have Seen the Highest Rates of Partner Attrition?

Texas appears to be the trickiest state to retain talent, with both Houston (19%) and Dallas (17%) recording the highest rate of AM Law Partner attrition between Jan 2024 - Dec 2025.


Among other large legal markets in the US, the Bay Area (17%), Los Angeles (16%), and Chicago (16%) all had a higher than average rate of attrition over the same 24-month period.

Bar graph showing partner attrition rates from Sept 2021 to Sept 2023 for US law firms. Insurance has the highest rate.

Note on methodology

Source: Publicly-available data tracked by Pirical Legal Professionals (PLP)

Timeframe: Jan 2024 - Dec 2025


Attrition Rate % = (Number of Partner exits) ÷ (Average Partner headcount for the timeframe) × 100


Data is derived from tracked Partner exits, numbers may be slightly incomplete due to limited public information. Exits include Partners that left but didn't lateral to another firm, eg. retired. 

Analysis powered by Pirical Legal Professionals (PLP)

Pirical Legal Professionals is the largest attorney database built with the most comprehensive data on the market. Specifically designed for legal recruitment and legal market research.


Pirical seamlessly aggregates data from a wide range of public sources, tracking over 700,000 attorney profiles worldwide. Our data helps law firms source lateral talent quicker, identify candidates with key client relationships, map competitor firm strategies & team structures, and much more.

Explore PLP data

Subscribe to the latest data insights & blog updates



Fresh, original content for Law Firms and Legal Recruiters interested in data, diversity & inclusion, legal market insights, recruitment, and legal practice management.

Get updates via email
Map shows partner headcount change after a merger. US and UK maps show increases and decreases, with numbers.
by Emily Turner • 2 minute read 19 December 2025
Hogan Lovells Stands to Significantly Strengthen its Footprint in the New York City Market.
Map showing Winston & Strawn's partner headcount change by merging with Taylor Wessing. Locations in green highlight increases.
16 December 2025
By Merging With Taylor Wessing Winston & Strawn Would Bolster Their European Footprint, Primarily in London
Bar graph showing partner headcount growth by city. Green bars indicate growth.
by Lakshana Susinthiran • 2 minute read 5 December 2025
There's been a clear burst of investment in the North West legal market over the last few years.
Bar graph: Sensitivity quartile.  High sensitivity: small percentage; Low sensitivity: large percentage.
28 November 2025
Pirical has been working to test ideas about what really drives productivity across the market.
Map showing Ashurst partner headcount change by merging with Perkins Coie, with locations in the USA and England.
by Lakshana Susinthiran & Emily Turner • 2 Minute Read 17 November 2025
By Merging With Perkins Coie, Ashurst Will Bolster Their Presence Across the United States
Map showing partner headcount change by merging with Cadwalader. Locations include US and UK. Green dots indicate increases
by Aidan Scanlon • 2 minute read 7 November 2025
By Merging With Cadwalader, Alston & Bird Would Bolster Their Presence in New York City and Grow in London & Charlotte
More posts