# BOUND 4 BLUE, S.L.

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/bound-4-blue-s-l

- Industry: Transportation Services
- Headquarters: Spain
- Website: www.bound4blue.com
- Total disclosed funding: $61M
- Latest round: Series B (Dec 9, 2025)
- Investors on record: 12

## About

Based in Cantabria, Spain, and founded in 2015, Bound4blue, SL is a designer and developer of foldable and autonomous wingsail systems. 
In December 2025, BOUND 4 BLUE, S.L. raised USD 44 million in venture funding co-led by new investors Katapult and Octave, with participation from other new investors Kai Capital, Motion Ventures, Rederiet Odfjell, and RE:OCEAN. Returning investors Center for Technological & Industrial Development, GTT Strategic Ventures, and Shift4Good also participated in the round.
The company offers automated wind-assisted sails systems for shipowners, shipping companies, and maritime transport industries to reduce fuel costs and pollutant emissions. The company through eSAIL® system provides effective thrust from existing winds.
The company will use the December 2025 funding to scale production of its automated suction sail systems, expand manufacturing in Spain and China, and advance research and development to meet demand for retrofit and newbuild vessels.

## Funding rounds

- Series B, Dec 9, 2025, $44M — Center for Technological & Industrial Development, Katapult, Octave Capital, Motion Ventures, Shift4Good, GTT Strategic Ventures, Rederiet Odfjell
- Series A, Aug 30, 2023, $17M — Louis Dreyfus Company B.V., Center for Technological & Industrial Development, Sustainable Oceans Alliance, European Innovation Council, Shift4Good, Ocean Born Foundation, GTT Strategic Ventures, Sun Return

## Investors

- Louis Dreyfus Company B.V. — Series A
- Center for Technological & Industrial Development (https://capitalatlas.ai/funds/center-for-technological-industrial-development) — Series A, Series B
- Sustainable Oceans Alliance — Series A
- European Innovation Council (https://capitalatlas.ai/funds/european-innovation-council) — Series A
- Shift4Good (https://capitalatlas.ai/funds/shift4good) — Series A, Series B
- Ocean Born Foundation — Series A
- GTT Strategic Ventures (https://capitalatlas.ai/funds/gtt-strategic-ventures) — Series A, Series B
- Sun Return — Series A
- Katapult (https://capitalatlas.ai/funds/katapult) — Series B
- Octave Capital (https://capitalatlas.ai/funds/octave-capital) — Series B
- Motion Ventures (https://capitalatlas.ai/funds/motion-ventures) — Series B
- Rederiet Odfjell — Series B