Department profile
WilmerHale

Environment

USA Guide 2026 : California


WilmerHale

Rankings

About

Provided by WilmerHale

Our lawyers draw on a long history in environmental law, energy project financing and permitting, public land use, climate change policy, and environmental justice to solve complex challenges. Clients depend on our legal skill and insight from government service to achieve their objectives, and they also depend on our industry and technical understanding—we have represented entities from a wide range of industries, including oil and gas, renewable energy, gas and electric transmission and distribution, mining, recreation, aviation, defense, real estate, education, life sciences and pharmaceuticals, and financial services.

We help these clients to manage environmental enforcement and other litigation challenges; to develop and permit energy production, transmission, and generation projects in the renewable, oil and gas, and nuclear sectors; and to navigate an increasingly complex regulatory playing field, including on matters related to climate change and environmental justice. Our team, which includes former high-ranking officials at the US Interior and Defense Departments, and the US Justice Department’s Environment and Natural Resources Division, is well prepared to assist clients in government investigations and to respond to other facets of high-profile crises. 

To learn more, visit: https://www.wilmerhale.com/en/solutions/energy-environment-and-natural-resources

Chambers Review

Provided by Chambers

Environment - California

Band 5

Band 5


What the Team is Known For
WilmerHale helps leading corporates navigate all manner of environmental investigations and litigation. The team also advises clients on regulatory requirements, environmental risk and third-party liability. The team is staffed with lawyers who have extensive prior experience working for federal and state regulatory agencies.

Notable Practitioners

Provided by Chambers

  • Band 2Peggy O Otum
    Band 2Peggy O Otum

    Peggy O Otum

    Peggy Otum is especially active advising clients on Superfund matters, hazardous waste issues and enforcement proceedings. She offers adroit counsel across environmental compliance, transactional support and complex litigation.

Ranked Individuals at WilmerHale (1)

California

Members

Provided by WilmerHale

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