Skip to content

William Funderburk

  • William Funderburk of Castellón and Funderburk LLP
  • Partner
  • Castellón & Funderburk LLP


    Based in Los Angeles, California, attorney William Funderburk is a partner at the boutique business law firm Castellón and Funderburk LLP. Funderburk concentrates on environmental administrative compliance, as well as government and private party enforcement litigation. His practice encompasses the Clean Air Act, the Clean Water Act, Superfund, and numerous other laws. He has provided testimony to the United States Congress and various federal departments to discuss regulations and policy matters. A graduate of Georgetown University Law Center, Funderburk has written extensively on legal issues. The California Environmental Law Reporter published his articles on California's storm water regulations, the Superfund Recycling Equity Act, and case studies involving chemical companies. Other topics he has covered include how administrative group decisions can influence the progress of alternative energy production and defense strategies in Proposition 65 litigation. Beyond these achievements, William Funderburk supports several community organizations including the board of directors (executive committee) for the Roy W. Roberts II Watts/Willowbrook Boys & Girls Club. Additionally, he chaired the board of directors of Wildlife on Wheels for four years, and when he was a stockbroker/institutional salesman in the 1980s, helped spearhead the implementation of the Stock Market Game--a program aimed at teaching children in underserved communities the mechanics of tracking and trading stocks.

    Professional experience


    Castellón & Funderburk LLP

    January 1999 - Present

    Education history

    Georgetown University Law Center

    January 1980 - January 1983(3 years)