Winnow announces ex-Dyson David Walker as Chief Commercial Officer

London, Monday 9th September 2019

Winnow, the hospitality tech firm bringing Artificial Intelligence (AI) into the kitchen to fight food waste, has appointed David Walker (formerly of Dyson, Sky TV and Barclays) as Chief Commercial Officer. 

David’s arrival follows the successful launch of Winnow Vision, an AI-enabled technology which gives chefs powerful insight to minimise waste and cut costs in their kitchens. The technology has already been rolled out to over 100 sites and is trusted by brands like IKEA, IHG and Emaar Hospitality.

David has joined Winnow to oversee the acceleration of commercial activities globally. He brings with him a wealth of experience in directing and leading growth, including 7 years as the Chief Commercial Officer at Personal Group, a leading provider of employee engagement platforms and apps, and working with Neyber, a leading London based Fintech. David also launched the Dyson Airblade hand dryer to the world, leading the Dyson Professional business across Europe and the USA. He also led Sky television’s commercial sales function, and his own career started from driving worldwide  business development for Barclays.

Using a camera, a set of smart scales and the same type of machine learning technology found in autonomous vehicles, Winnow Vision ‘learns’ to recognise different foods being thrown in the bin and calculates the financial and environmental cost of this discarded food to commercial kitchens. 

Businesses and chefs can then adjust their food purchasing decisions accordingly, reducing their spending and tackling a fundamental problem of food waste: overproduction. A typical kitchen would expect to cut food waste in half within a year, saving 3%-8% on food purchasing costs. 

Globally, a third of all food never reaches our forks. If food waste were a country, it would be the third largest emitter of greenhouse gasses after the USA and China. Food waste is also a completely unnecessary financial burden for businesses to bear, costing the global economy around $1 trillion in lost output – equivalent to around 1.5 percent of global GDP. Food waste costs commercial kitchens between five and 15 percent of all food purchased, with some kitchens wasting up to 20 percent of all the food they buy. Food waste costs the hospitality industry alone around $100bn every year – a number that Winnow Vision will slash.

About Winnow 

Winnow develops cutting-edge digital tools to help chefs run more profitable, sustainable kitchens. Launched in a single staff restaurant in 2013, Winnow is trusted today by thousands of chefs in over 40 countries, where kitchens’ food waste is consistently cut in half. Together Winnow and its partners are saving over 23 million meals a year from the bin: the equivalent of $33 million in food cost savings for our clients. For more info: