# Hana Kajimura

> Hana Kajimura is the CEO of Trellis Group, the climate media-and-events company behind GreenBiz, Circularity and Trellis Impact. Before running the room, she built it: as Allbirds' first full-time sustainability hire she stamped a carbon footprint on every shoe, open-sourced the methodology so rival brands could copy it, and authored the 'Flight Plan' to halve the company's per-product emissions. A Stanford environmental scientist who chose business over activism because companies 'move much more swiftly,' she now runs the largest gathering of sustainability professionals in North America.

- **Role:** CEO at Trellis Group
- **Organizations:** Trellis Group, Allbirds, Environmental Defense Fund
- **Nationality:** American
- **Education:** BS, Environmental Science, Stanford University
- **Known for:** Built Allbirds' sustainability program from scratch as its first full-time sustainability hire, Led Allbirds to company-wide carbon neutrality (2019), Pioneered carbon footprint labeling on every Allbirds product, modeled on nutrition labels

## Career timeline

- **2013** — Interned at the Environmental Defense Fund in its corporate partnerships program while studying at Stanford
- **2017** — Joined Allbirds as its first full-time sustainability hire
- **2019** — Allbirds reaches company-wide carbon neutrality; carbon footprint labeling rolled out on products
- **2020** — Named to the GreenBiz 30 Under 30
- **2021** — Launched the Allbirds 'Flight Plan' to halve per-unit carbon footprint by 2025; named to the Glossy 50
- **2023** — Left Allbirds after 5.5 years leading sustainability
- **2025** — Joined Trellis Group and became CEO of the climate media-and-events company

## Achievements

- Built Allbirds' sustainability program from scratch as its first full-time sustainability hire
- Led Allbirds to company-wide carbon neutrality (2019)
- Pioneered carbon footprint labeling on every Allbirds product, modeled on nutrition labels
- Open-sourced Allbirds' carbon footprint calculation methodology, tools and label templates for any brand to use free
- Authored the Allbirds 'Flight Plan' targeting a 50% per-unit carbon cut by 2025 and near-zero by 2030
- Named to GreenBiz 30 Under 30 (2020)
- Named to the Glossy 50 (2021)
- Became CEO of Trellis Group, organizer of GreenBiz, Circularity and Trellis Impact

## Latest updates

- **2025-06** — Announced as the new leader of Trellis Group, the climate media-and-events company behind GreenBiz and Circularity
- **2025-01** — Featured as a speaker across Trellis events; profile photo published on Trellis

## Links

- Website: https://trellis.net
- LinkedIn: https://www.linkedin.com/in/hanakajimura

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Profile page: https://yespress.io/hana-kajimura
Published by YesPress — https://yespress.io
Last updated: 2026-06-04