The Millennium Alliance is excited to announce that Kristen Siemen, Former VP & Chief Sustainability Officer at General Motors, will keynote Our Digital Supply Chain Transformation Assembly on June 4-5 in Charlotte!

Interested in joining this Assembly? Click here to request an invite. 

About Kristen Siemen

Kristen Siemen retired from General Motors in November 2024 after serving as Vice President of Sustainable Workplaces and Chief Sustainability Officer since 2021. In this role, she was instrumental in advancing GM’s journey toward a zero-emission future, leading efforts to achieve carbon neutrality in its products and operations by 2040. Under her leadership, GM received several prestigious awards, including recognition on JUST Capital’s Most JUST Companies list, Fast Company’s Brands That Matter, and top scores in Environmental and Social categories from ISS ESG. GM was also named one of Ethisphere’s World’s Most Ethical Companies for five consecutive years, reflecting Siemen’s commitment to both sustainability and corporate integrity.

Siemen began her career with GM in 1994, holding a variety of engineering and staff positions with increasing responsibility. By 2010, she moved into senior leadership roles across global engineering functions, including Electrical Engineering, Thermal Engineering, and Energy Certification.

In addition to her technical expertise, Siemen was a strong advocate for inclusion and gender equality. She played a key role in launching GM’s “Take 2” career reentry program and the GM Women Ally Program. As CSO, Siemen received numerous individual honors, such as Crain’s Notable Leaders in Sustainability and recognition as one of Sustainability Magazine’s Global Top 100 Chief Sustainability Officers. Siemen also contributed to several influential boards, including the United Nations Global Compact USA and the Engineering Society of Detroit, where she earned both her bachelor’s and master’s degrees in Electrical Engineering.