Merger mania: what's driving so many AM Law mergers and what will the combined firms look like?

12 September 2024

In the first half of September, Troutman Pepper (51st in the AM Law 200) and Locke Lord (97th) voted to approve their merger, Womble Bond Dickinson (88th) announced they were combining with Lewis Roca (175th), and Ballard Spahr (99th) revealed their plans to merge with Lane Powell (sub-200).


This burst of activity clearly represents a desire from some AM Law firms to scale and grow. But why are so many firms planning mergers in 2024 and what will the combined firms look like once complete? We've taken a look using publicly-available data tracked by Pirical Legal Professionals.

Second 50 AM Law firms have experienced slower growth than the top 50 and are merging in order to stay competitive

In 2020 & 2021, AM Law firms ranked 51-100 achieved much higher rates of annual Partner growth than their top 50 peers. However, since 2022 that trend has reversed and over the last 36 months the top 50 firms have registered stronger and more consistent headcount growth.


1-50 ranked firms are growing steadily, but for lower ranked firms "it's harder to grow through laterals without being dented by attrition of your own." In the last 12 months AM Law 50 firms have increased Partner headcount by 3.2%, compared to just 0.7% from the second 50 firms.


In an effort to keep up with their competitors, continue to grow, and increase revenue, more & more firms outside of the top 50 are looking to merge.

Annual partner headcount growth rates across major firms, Aug 2020 - Aug 2021. Green bars show Top 50 & Mid-size firms. Dark bars show 7-Mid firms.

Troutman Pepper will grow their Partnership in a few key cities and gain a foothold in Texas for the first time

The merger is likely to create a 1,600-lawyer firm, with revenue of around $1.5 billion, and rank in the top 30 of the AM Law. Troutman Pepper and Locke Lord share several key practice areas, namely Litigation, Real Estate and Corporate.

Map showing projected partner headcount of Troutman Pepper after merging with Locke Lord, with locations in the US highlighted.

Womble Bond Dickinson will significantly grow their presence in the Southwest

The merger is likely to create a 1,300-lawyer firm, with revenue of around $742 million. By combining with Lewis Roca, Womble Bond Dickinson will primarily increase headcount across the firm's Litigation, Real Estate and Intellectual Property practices.

Map showing Wemble Bond Dickinson partner headcount in US after the merger with Lewis Roca; green indicates new presence.

Ballard Spahr will open a new regional presence by expanding into the Northwest

The merger is likely to create a 750-lawyer firm, with revenue of around $584 million. Ballard Spahr will be boosting depth in Litigation and Corporate practice areas by merging with Lane Powell.

Map showing Ballard Spahr's Partner headcount in the U.S. after merging with Lane Powell, highlighting locations.

Written using publicly-available data from Pirical Legal Professionals (PLP)

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