Here are the Top 10 environmental, water and natural resources law firms in Arizona, based on public voting for the 2026 edition of Ranking Arizona, the state’s biggest and most comprehensive business opinion poll. Ranking Arizona is based purely on opinion and ranks companies based on how voters answer this simple question: with whom would you recommend doing business?

DEEPER DIVE: Read all the Ranking Arizona Top 10 lists here

INDUSTRY INSIGHTS: Want more news like this? Get our free newsletter here

Want to buy a copy of the 2026 edition of Ranking Arizona when it becomes available? Click here. Want information on advertising in the 2027 edition of Ranking Arizona? Click here.

Top 10 environmental law firms in Arizona

Here are the Top 10 environmental, water and natural resources law firms in Arizona, as featured in the 2026 edition of Ranking Arizona:

1. Gammage & Burnham

Background: Celebrating more than 40 years since its founding, Gammage & Burnham continues to deliver results by leveraging an unmatched understanding of Arizona — its laws, values, customs, and people. Since 1983, the firm has played an integral role in shaping the state’s dynamic growth alongside many of its core institutions and industries. Locally owned and operated, Gammage & Burnham is powered by a team of dedicated professionals whose reach extends throughout Arizona, across the United States, and internationally. With deep connections and decades of experience, the firm combines local insight with global perspective. The firm’s water law attorneys collaborate closely with its real estate and land use practice groups, providing clients with comprehensive, multidisciplinary legal strategies. This integrated approach enables the team to anticipate issues before they arise, align legal tactics with real-world business priorities, and deliver efficient, forward-thinking solutions that clients value and trust.

2. Resnick & Louis

3. Sacks Tierney

4. Snell & Wilmer

5. Clark Hill 

6. Ballard Spahr

7. Polsinelli

8. May, Potenza, Baran & Gillespie

9. Fennemore

10. Gust Rosenfeld

Ranking Arizona: Think someone else should be on the list? To make your vote count in the 2026 edition of Ranking Arizona, click here to vote.