Mike Williamson


Number of operations

7 Farm Sites

How many partner farmers do you work with?

5 Nation Partners

In operation

2 years

Production methods

  • Horizontal longlines in the ocean
  • Tanks on land



  • Saccharina Latissima (Sugar Kelp)
  • Alaria marginata (Winged kelp or West Coast Wakame)
  • Develarea mollis (Red Ribbon or Pacific Dulse)


  • Food, direct consumption
  • Agrifeeds

What food products are made from your seaweed?

  • Formulated/value-added product
  • Ready to eat foods
  • Frozen/dried
  • Additives (thickeners, emulsifers, gellers, preservatives)

Canada | British Columbia | Sidney



Sidney, BC, Canada, V8L 3A4

Regional Challenges
  • Transport
  • Lack of experienced seaweed processors
  • Matching growing volumes with offtake.

Mitigate the Effects of Climate Change

Are you using or transitioning to renewable energy sources?

Yes, currently using.

What renewable energy resources are you switching to?

  • Hydro.

Are you growing seaweed for livestock feed additives to reduce greenhouse gas emissions?


Are you monitoring or conducting research into carbon uptake by seaweeds?



Cascadia Seaweed is growing to be the largest North American provider of ocean cultivated seaweed — a climate-positive crop with a variety of uses requiring only the sea and sunlight to grow. This British Columbia based corporation was founded in 2019 by three maritime professionals who believe in building a profitable and scalable business that enhances the natural environment and provides economic opportunity for rural and coastal communities.

Ocean cultivated seaweed requires no freshwater, fertilizers, pesticides or arable land to grow. It utilizes nutrients from the sea, sequesters more carbon than land plants, mitigates acidification, creates habitat, is renewable and fast growing. It is the definition of regenerative aquaculture and this new and burgeoning sector directly supports the development of Canada’s growing Blue Economy.