# Food for thought: Building a tech 4 good movement

- URL: https://www.askattest.com/blog/video/food-for-thought-building-a-tech-4-good-movement
- Published: 2022-06-08
- Updated: 2026-07-16
- Description: Here's Tessa Clarke, Co-founder & CEO of food sharing app OLIO, and her awesome presentation at the inaugural Attest Brand Growth Summit in London.

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Tessa shares the [OLIO](https://olioex.com/) journey from a proof of concept via Whatsapp, to a global movement of over 6 million users. She also shares her experience of building a modern sustainability brand combining profit with purpose, and how to harness a community driven model of growth.

### Watch [more insights and stories](https://www.askattest.com/blog/category/video?) from top brands at the Brand Growth Summit.