Coast 4C operates a platform that links smallholder seaweed farmers in Southeast Asia with global buyers via traceable and responsible supply chains. The company emphasizes regenerative seaweed production and traceability to support ocean-positive production models. With the newly raised seed capital, Coast 4C intends to scale its platform and expand support for smallholder farmers across the region. The firm has attracted impact and ocean-focused investors, including Hatch Blue, Conservation International Ventures, Potato Impact Partners and others. The World Economic Forum’s Blue Carbon Action Partnership and the APAC Community of 1000 Ocean Startups provided targeted support during the fundraise. Earlier support included investors such as Rumah Group & Foundation. The announcement did not disclose revenue, user metrics, founding year, or valuation.

Total raised

$3M

Funding rounds

1

Latest round

Seed

Latest activity

Jun 2026