Our People
Sophia B. Castillo
Partner
Azim Chowdhury
Partner
Mitzi Ng Clark
Partner
Gregory A. Clark
Partner
In the News
Azim Chowdhury Interviewed for Nicotine Insider Article on PMTA Reform
In The News
Keller and Heckman Partner Azim Chowdhury was interviewed for the Nicotine Insider article, “As FDA Rethinks
David Fischer Quoted in Inside TSCA Article on EPA’s Limited Time to Implem...
In The News
Keller and Heckman Partner David Fischer was quoted in the Inside TSCA article, “TSCA Watchers Doubt EPA’s A
Herb Estreicher, David Fischer, and Lauren Gates Quoted in Chemical Watch A...
In The News
Keller and Heckman Partners Herb Estreicher and David Fischer, plus Counsel Lauren Gates, were quoted in the
Lauren Gates Quoted in Inside EPA Article on Methylene Chloride Ruling Shap...
In The News
Keller and Heckman Counsel Lauren Gates was quoted in the Inside EPA article, “Industry Cites Landmark TSCA
Events
Partner Herb Estreicher to Present at Global Chemical Regulatory Developments 2026
Speaking Engagement
11.10.2026
Partner Rachida Semail to Present at the RTE Packaging Seminar 2026
Speaking Engagement
11.04.2026
11.05.2026