Ashurst and Perkins Coie Merge to Form $2.7bn Transatlantic Legal Powerhouse

Ashurst and Perkins Coie Announce Landmark Merger

In a move set to reshape the global legal landscape, London-headquartered Ashurst and Seattle-based Perkins Coie have announced their merger to form Ashurst Perkins Coie, a transatlantic megafirm expected to rank among the world’s top 20 by size and revenue. The combined entity will boast 3,000 lawyers, USD 2.7 billion in annual revenue, and a presence spanning 52 offices in 23 countries. Flagship hubs will be established in Seattle, London, Sydney, and New York, reflecting the firms’ deep-rooted strengths in both hemispheres (Legal Cheek, Capital Brief).

Leadership, Structure, and Strategic Vision

Leadership of the new firm will be shared by Bill Malley of Perkins Coie and Paul Jenkins of Ashurst, serving as global co-CEOs. Karen Davies (Ashurst) and Brian Eiting (Perkins Coie) will co-chair the combined firm, while Mark Birnbaum will continue as chair of Perkins Coie’s executive committee until his term ends in late 2025 (Capital Brief). This dual leadership structure signals a commitment to balance, collaboration, and continuity during a pivotal transition.

The merger, subject to partner approval and standard closing conditions, is slated for completion in autumn 2026. Until then, both firms will continue to operate independently, preparing for integration on every front—from client services to internal culture.

Complementary Strengths and Sector Synergies

Ashurst’s expertise in energy, infrastructure, financial services, and real estate will combine with Perkins Coie’s reputation for technology, intellectual property, privacy, fintech, life sciences, and environmental law. This blend is more than a sum of parts: both firms are touting their shared ambition in innovation, particularly around artificial intelligence and legal technology (Legal Cheek).

Perkins Coie’s history with high-profile tech clients and Ashurst’s international reach in cross-border transactions position Ashurst Perkins Coie to advise on issues at the intersection of technology, finance, and regulation. The merger comes at a time when clients face unprecedented legal complexity, from global data privacy regimes to the fast-evolving landscape of digital assets.

According to Bill Malley, “Perkins Coie has a proud history of partnering with the world’s most innovative companies, helping them grow, and growing alongside them, which has underpinned our strong financial performance in recent years. Ashurst complements our geographic reach and capabilities and shares our ambition to build a firm defined by ingenuity and collaboration.”

Paul Jenkins adds, “Our ambition for many years has been to grow in the U.S. with the right partner: a firm with deep, trusted expertise that complements our own. We have now found that partner—Perkins Coie is an ambitious, forward-thinking law firm meeting its clients at the forefront of technological change.”

Market Impact and Precedent

The Ashurst Perkins Coie merger follows a recent wave of transatlantic tie-ups, including Allen & Overy’s union with Shearman & Sterling (forming A&O Shearman in 2023) and Herbert Smith Freehills’ merger with Kramer Levin in early 2025. These moves reflect a growing trend: global law firms seeking scale, reach, and sector depth to compete in an increasingly complex market (Legal Cheek).

For Perkins Coie, the merger marks a strategic turn after legal challenges connected to its representation of high-profile political clients, including a successful court challenge against an executive order from the Trump administration. The government is still appealing the ruling, but the firm’s resilience and ability to navigate turbulent waters may strengthen its standing in the new entity.

Unlike traditional models, Ashurst Perkins Coie will not have a single head office. Instead, it will operate around flagship hubs, leveraging local strengths and global collaboration. This decentralized approach reflects the realities of cross-border legal work, where expertise and client relationships are spread across continents.

Talent, Training, and the Road Ahead

Talent remains a key focus. Ashurst currently offers 38 training contracts annually in London, while Perkins Coie’s London trainee program has been more modest, with around four contracts per year. Salary disparities are notable: Ashurst’s newly qualified solicitors earn £140,000, while Perkins Coie pays up to £180,000 for NQ lawyers. No official statement has been made about future trainee intake or pay at Ashurst Perkins Coie, leaving young lawyers and recruiters waiting for clarity.

For clients, the merger promises access to broader expertise, deeper sector specialization, and more seamless service across jurisdictions. For staff, it presents both opportunity and uncertainty as cultures, systems, and career paths converge.

Legal Industry Trends and Outlook

The Ashurst Perkins Coie merger is not happening in isolation. Global legal services are under pressure from clients demanding more integrated, technology-driven solutions. As regulatory complexity grows and digital transformation accelerates, firms able to combine scale with sector expertise are likely to thrive. The new firm’s stated emphasis on innovation and collaboration reflects this reality.

Yet, mergers of this scale are never simple. Integrating systems, aligning cultures, and harmonizing client relationships will require careful management. The leadership’s willingness to embrace a co-CEO structure and decentralized hubs suggests an understanding of these challenges—and a belief that the rewards outweigh the risks.

As the legal world watches, Ashurst Perkins Coie will face intense scrutiny. Will the combined firm deliver on its promise of world-class service and growth? Or will the complexities of global integration slow its momentum? For now, clients, competitors, and insiders await the autumn 2026 completion date with anticipation.

The Ashurst Perkins Coie merger represents not just a union of legal expertise, but a strategic bet on the future of cross-border law. If the leadership can harness their complementary strengths and navigate integration challenges, this new entity could set a benchmark for how global firms evolve in a rapidly changing world.