Company lists · Data refreshed September 2026
Top 25 Seaweed cultivation companies worldwide
RevenueBase identified 583 seaweed cultivation companies worldwide as of September 2026 and tracks 4,030 professional contacts across them, including 871 with verified work emails. The United States is the largest market and Qingdao the largest hub.
This list covers seaweed cultivation companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026. Country and city lists for seaweed cultivation companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest seaweed cultivation companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 92 contacts → | ||||
Partial evidence “In five decades since it was founded, W Group has made a name for itself in the Philippine business groups in seaweed trading and carrageenan production, investment, and real…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 81 contacts → | ||||
Indirect evidence “We grow giant kelp forests around the globe to boost the health of the oceans and to store CO2.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 80 contacts → | ||||
Indirect evidence “Fundada em 2006, a Oceana fabrica produtos de algas marinhas do gênero Lithothamnium para a Nutrição Animal e Nutrição Vegetal.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 68 contacts → | ||||
Indirect evidence “With over 30 years of experience, Alimex S.A.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 61 contacts → | ||||
Indirect evidence “Bienvenue à la SATMAR!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 51 contacts → | ||||
Partial evidence “Algaia, part of the JRS Rettenmaier group, is a company developing, producing and commercializing Natural Extracts, mostly made out of seaweed.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 51 contacts → | ||||
Indirect evidence “AquAgri Processing Pvt.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 50 contacts → | ||||
Indirect evidence “Alginor seeks towards a green and sustainable future based on treasures from the sea.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 48 contacts → | ||||
Indirect evidence “At Seasol we are in the business of growing and nurturing!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 41 contacts → | ||||
Indirect evidence “Depuis 40 ans, AGRIMER est spécialisée dans le développement de produits à base d'actifs marins pour les secteurs de la cosmétique, de l'agriculture et de la diététique.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 39 contacts → | ||||
Indirect evidence “Grieg Seafood BC is now part of the Cermaq Canada family.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 37 contacts → | ||||
Indirect evidence “Patagonia Biotecnología es una empresa chilena que produce bioestimulantes y fertilizantes en base a extractos de algas marinas orgánicas, naturales y de doble acción…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Partial evidence “50 years ago, Afrikelp positioned itself as a leader in the manufacturing of liquid seaweed biostimulants.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 33 contacts → | ||||
Partial evidence “Founded in January 2020, Carbonwave (previously C-Combinator) is the world's leading developer of ultra-regenerative, plant-based, advanced biomaterials from seaweed.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 31 contacts → | ||||
Indirect evidence “With diminishing resources like arable land and clean water, amidst an ever expanding global population, farmers strive to remain competitive.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 30 contacts → | ||||
Indirect evidence “Hortimare is a company with activities and products from seed source to efficient deployment.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 29 contacts → | ||||
Indirect evidence “We are a pioneering blue growth company located in the Faroe Islands, in California, USA, and in Baja California, Mexico.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 27 contacts → | ||||
Partial evidence “Manufacturer and sale of agricultural foliar fertilisers that contain seaweed to stimulate and promote the growth and crop yield of crops.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 27 contacts → | ||||
Partial evidence “Sea Forest Limited is a science-based environmental technology company harnessing the power of Australian seaweed Asparagopsis, and replicating its bioactives, to drive…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 26 contacts → | ||||
Partial evidence “At Cascadia Seaweed, we grow local species of seaweed on marine farms in partnership with coastal First Nations.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 26 contacts → | ||||
Partial evidence “SEADLING is a seaweed biotechnology and manufacturing company driven by a regenerative and sustainable mission.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 26 contacts → | ||||
Indirect evidence “Somos especialistas en ciencias marinas y bioestimulación vegetal.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 24 contacts → | ||||
Strong evidence “Nordic SeaFarm is a Swedish company pioneering sustainable seaweed cultivation and processing.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 23 contacts → | ||||
Partial evidence “ClimaCrew Pvt Ltd is working towards scaling seaweed production through the use of data, technology and social sciences.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 20 contacts → | ||||
Partial evidence “Welcome to BANYU - Transforming Indonesia's Seaweed Industry with Innovation and Sustainability At BANYU, we envision a future where technology and innovation converge to reshape…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: seaweed cultivation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names seaweed cultivation companies.
- Partial evidence
- Its own public description names part of seaweed cultivation companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name seaweed cultivation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 583 seaweed cultivation companies worldwide
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Seaweed cultivation companies worldwide at a glance
As of Sep 22, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among seaweed cultivation companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for seaweed cultivation companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “seaweed cultivation companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names seaweed cultivation companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among seaweed cultivation companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 871 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Seaweed cultivation companies by location
3 lists · largest firstEvery Seaweed cultivation companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names seaweed cultivation companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many seaweed cultivation companies are there worldwide?
RevenueBase identified 583 seaweed cultivation companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
W Group, headquartered in Taguig Manila, tops this list with the largest team on record.
Which country has the most seaweed cultivation companies?
The United States leads with 61 companies, followed by the United Kingdom (38) and Australia (29). Every seaweed cultivation companies list by country and city is linked on this page.
Which city has the most seaweed cultivation companies?
Qingdao leads with 12 headquartered companies, followed by Jakarta (7) and Chennai (5).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 871 verified decision-maker contacts tracked across these 583 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.