Skip to content
Homepage Top Ad

See what’s driving real impact at Trellis Impact 26 | June 23–25 in San Francisco. Register today.

Trellis Trellis
  • Topics
  • Events
    In-person Events
    View All
    • Trellis Impact
      Trellis Impact
    • GreenBiz 27
      GreenBiz 27
  • Webinars
  • Network
  • Job Board
  • About

Subscribe to Trellis Briefing
Sustainability news and insights in one concise morning email.

Please enable JavaScript in your browser to complete this form.
Loading

Subscribe to Trellis Briefing
Sustainability news and insights in one concise morning email.

Please enable JavaScript in your browser to complete this form.
Loading

Ellen Jackowski

Chief Sustainability Officer and EVP
Mastercard
Ellen Jackowski is the Chief Sustainability Officer at Mastercard, spearheading the integration of environmental and social impact into the organization, including its commitment to achieving net-zero emissions by 2040 and initiatives like the Priceless Planet Coalition. Previously, she served as Chief Impact Officer at HP, focusing on climate action and human rights. Ellen has been recognized as a TIME100 Climate Leader, a Greenbiz Badass Woman Shaping Climate Action, and contributes to global sustainability efforts through advisory roles with organizations such as the World Economic Forum and the Ocean Plastics Leadership Network.
Trellis
Sign in to Trellis Network
Explore
  • Resources
  • Articles
  • Webinars
Events
  • Trellis Impact
  • GreenBiz 27
Products
  • Trellis Network
  • Trellis Briefing
  • Events
  • Media Kit
  • Job Board
About
  • Company
  • Careers
  • Editorial Guidelines
  • Contact Us
Follow Us
  • Cookies
  • Privacy Policy
© 2026 Trellis Group Inc.