Plantsea
2 known investors
PlantSea develops seaweed-based packaging materials as an alternative to single-use plastics. It targets companies seeking eco-conscious packaging solutions.
Founders & leadership
RR
Rhiannon ReesCo-Founder & CEO
AN
Alex NewnessCo-Founder & COO
Investors · 2
Companies House · registry record
View on Companies House ↗- Registered name
- PLANTSEA LTD
- Company number
- 12551709
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 Apr 2020
- Registered office
- Optic Technology Centre, St. Asaph Business Park, St. Asaph, LL17 0JD
- Nature of business (SIC)
- 72110 — Research and experimental development on biotechnology
- Accounts
- last made up to 30 Apr 2025 · next due 31 Jan 2027
- Confirmation statement
- last made up to 7 Apr 2026 · next due 21 Apr 2027
Current officers · 3
- Belinda Katharine Howell — director, appointed 20 Apr 2026
- Alex Timothy Newnes — director, appointed 8 Apr 2020
- Rhiannon Lynne Rees — director, appointed 8 Apr 2020
Source: Companies House public register · retrieved 16 Aug 2026. Contains public sector information licensed under the Open Government Licence v3.0.
Frequently asked questions
- What does Plantsea do?
- PlantSea develops seaweed-based packaging materials as an alternative to single-use plastics. It targets companies seeking eco-conscious packaging solutions.
- Who founded Plantsea?
- Plantsea was founded by Rhiannon Rees, Alex Newness.
- Who are Plantsea's investors?
- Plantsea's investors include Sustainable Ventures, SFC Capital.