Fennemore and G&K Merge, Forging a Legal Behemoth in the American West

PHOENIX, AZ – September 09, 2026

In a move set to redraw the legal map of the American Southwest, Am Law 200 firm Fennemore and the venerable Arizona-based Gallagher & Kennedy (G&K) have announced they will combine forces. Effective December 1, 2026, the merger will create one of Arizona’s largest and most formidable business law firms, operating under the Fennemore name. The deal is more than a simple consolidation; it’s a strategic fusion of tech-forward ambition and deep-rooted regional expertise, signaling a new era of competition and service delivery in the legal industry.

The combined entity will boast a staggering roster of nearly 300 lawyers and legal professionals in Phoenix alone, with the firm-wide headcount swelling to over 800. This isn't just about size; it's about strategic depth. As Fennemore CEO James Goodnow stated, "It is rare to have the opportunity to bring together two firms with this much history, this caliber of talent, and such strong client relationships. We know each other, we respect what each firm has built, and we believe we will be even better together.”

Reshaping Arizona's Competitive Landscape

The immediate impact of this merger will be felt most acutely in the Phoenix legal market. Fennemore, already a fast-growing powerhouse ranked No. 171 on the 2026 Am Law 200 list, is joining with G&K, the seventh-largest firm in the state. The result is a legal juggernaut that will immediately challenge the market dominance of established players like Snell & Wilmer, Greenberg Traurig, and Quarles & Brady.

For decades, Fennemore (founded in 1885) and G&K (founded in 1978) have been pillars of the Arizona business community, their stories interwoven with the state's economic growth. This combination unites two legacies into a single, powerful brand. "Both Fennemore and Gallagher & Kennedy have played an important role in the growth of Phoenix and Arizona for generations," Goodnow noted, emphasizing the shared history that underpins the strategic move.

The sheer scale of the new Fennemore provides the capacity to handle the largest, most complex litigation and transactional matters, positioning it as a go-to firm for major corporations operating in the region. This increased scale doesn't just mean more desks; it means a deeper bench of talent and a broader spectrum of practice areas under one roof, creating a one-stop-shop that is increasingly attractive to sophisticated clients.

High-Tech Meets High-Touch: A Blueprint for Modern Law

Beyond the impressive numbers, the most compelling aspect of this merger is the synergy between Fennemore’s aggressive innovation and G&K’s specialized expertise. This isn't just a marriage of convenience; it's a carefully crafted model for the future of legal services.

Fennemore has made headlines with its ambitious "Project BlueWave AI," a firm-wide initiative to integrate artificial intelligence, automation, and alternative fee structures into its service delivery. At the heart of this is DOT (Dynamic Optimization Technology), a proprietary AI assistant built on OpenAI's enterprise platform, designed to streamline everything from legal research to document drafting. This commitment to technology, which includes a 144% revenue surge since 2020, has positioned Fennemore as a leader in legal innovation.

Gallagher & Kennedy brings a different but equally valuable asset to the table: decades of focused, high-stakes experience in areas critical to the Southwest's economy. The firm is a recognized leader in natural resources, environmental, water, and complex litigation. By integrating G&K’s deep subject-matter expertise with Fennemore’s tech platform, the new firm can offer clients something unique: the nuanced counsel of seasoned experts, delivered with the speed and efficiency of a tech company.

Kevin O’Malley, managing partner of G&K, highlighted this client-centric benefit: “Joining Fennemore will give our clients access to additional resources and capabilities, while giving two groups of people who know and respect one another the opportunity to work as one team.” This fusion promises to supercharge practices in mining, utilities, and real estate, where complex regulatory and environmental issues are paramount.

A Calculated Play for Southwest Dominance

This merger is undeniably a play for regional dominance. Fennemore has been vocal about its strategy of purposeful expansion across the West, with existing offices in Nevada, Colorado, and California. The addition of G&K provides the final, crucial piece for a comprehensive Southwest strategy: New Mexico.

G&K’s Santa Fe office and its lawyers’ deep familiarity with New Mexico's regulatory landscape are invaluable assets. Instead of building a presence from the ground up, Fennemore instantly acquires a reputable, established platform in a key neighboring state. This allows the combined firm to seamlessly serve clients with multi-jurisdictional needs across the Arizona-New Mexico corridor and beyond, solidifying its position as the preeminent legal service provider for industries driving the Western economy.

The strategic motivations are clear. In an industry where growth is paramount, this merger provides scale, expands geographic reach, and acquires top-tier specialized talent in one decisive move. It’s a testament to Fennemore’s aggressive growth strategy, which has already made it one of the fastest-growing firms in the country.

The Challenge of Weaving Two Histories into One Future

While the strategic logic is impeccable, the success of the merger will ultimately hinge on execution and cultural integration. Combining two firms with a combined history of over 200 years is a monumental task. Both Fennemore and G&K pride themselves on distinct cultures—Fennemore on its "people-first," entrepreneurial spirit, and G&K on its tight-knit, relationship-driven approach.

Leadership from both sides has publicly emphasized mutual respect and shared values as the foundation for the combination. The challenge will be to translate this goodwill into a unified operational reality, integrating everything from IT systems and compensation structures to the day-to-day workflows of attorneys and staff. Retaining top talent and reassuring clients through the transition will be the immediate priorities.

The fusion of Fennemore's tech-forward, distributed workforce model with G&K's more traditional, boutique-service ethos will be a fascinating case study in modern law firm management. If they succeed, they will not only have created a legal powerhouse but also a potential new model for how law firms can evolve—by honoring their history while aggressively building the future.