Seagreens® Information Service  0845-0640040 / +44-1444-400403
Certified ingredients

Seagreens® ingredients are the finest in their category.

We offer five seaweed species in different forms to suit a range of applications in food and nutrition products.

Seagreens® are the unique products of two decades' research and production experience.

We can support your NPD and ongoing product development with unparalled know-how, informed by our own years of trial and error.

Why Seagreens®? 

Please click here for a brief introduction, and then take a brief look at our production quality (top right side of this page).

Please involve us in your proposed application as early as possible.


We have never failed to supply from stock in 20 years. 

Our comparative analytical data, on seaweed nutrients and contaminants, is unique because we pioneered this new industry.

We still lead the field on quality assurance, applied nutrition research, and international regulatory compliance, in spite of niche competitors.

Seagreens® has independent Nutritious Food Seaweed certification  - the highest standard in the world - as well as niche certification like BRC, organic and kosher.


Also uniquely, we offer our customers the option to use our brand name to identify the ingredient in their product.

We are proud to lend our reputation to the seaweed ingredient in your product.

If there are problems or negative press from inferior seaweeds - and there have been in recent years - your product and brand is protected and consumers can see the difference for themselves.

Most of our customers identify the Seagreens® ingredient in their product, and we call them Brand Partners.

They receive valuable additional benefits on price, continuity, technical and marketing support.

Seagreens® are different and distinct from other seaweed ingredients - some of which should not enter the human food chain.

Some are produced for horticulture, animal feed or extracts, or come from unchecked artisan production, collected by hand on the shoreline.

Under direct supervision, we select and harvest at remote locations in the British Isles and Nordic region.

We conduct all our final processing in the UK.

Seagreens® are a 'made in Britain' and export to many countries around the world.


Our business model is a modern consortium, administered by the Seagreens Trust in the interests of our Partners and Customers.

For more information about standards and certification please click here.

Seagreens is the result of an Anglo-Scandinavian joint venture which began in the Trondheim archipelago in Norway in 1997.

Seagreens was set up to focus exclusively on seaweed prouction for human nutrition through food and drink ingredients and medical therapy.

Over the past 20 years we have set up to produce nutritious food seaweed in 5 locations in the british Isles and Nordic region.

We continue to lead the field in production qualty and continuity, research, range of seaweed species and ingredient products.

For more help please call Seagreens at +44 1444 400403 or email

For trade ordering please telephone +44 1342 888095, or email

Or click here for full contact information and an enquiry form.

"The UK's leading seaweed supplier"
- Organic & Natural Business magazine, October 2009

Ask your seaweed supplier these important questions:

  • Does your seaweed production Food Hygiene certified?
  • Is your seaweed certified allergen free?
  • Is every batch tested to EU Food Regs for all contaminants
  • (eg. pesticides, polyaromatic hydrocarbons, aflotoxins and dioxins)?
  • Is it British Retail Consortium certified for food production?
  • Do you dry and handle the seaweed as a Raw Food?
  • Is your ingredient Fully Traceable to the point of harvest?
  • Do you use fossil fuels like kerosene in your drying process?
  • Can I see a certified comprehensive analysis of the nutritonal composition?
  • Does it comply with all the requirements of any world market where I may want to sell my product?


Seagreens Quality Assurance: a short presentation


Download : Der Speigel 1955 article with English translation (pdf)

An article published in 1955 in the magazine “Der Spiegel” (in German) has come to light. The article is about a German man in the 50's importing seaweed from Norway and selling it to bakeries for use in bread making. Mr Lienau wanted to make seaweed usable for nutrition in Germany.

Video: Seagreens founder, Simon Ranger, talks about the use of seaweed as a food ingredient...

Video: Seagreens founder: 'Support the Seaweed Health Foundation'...