Growth Blue Fund, managed by Growth Partners Capital, is the only European private equity vehicle dedicated to sustainable ocean-resource businesses ("Blue Economy"), targeting profitable SMEs and mid-caps via growth and build-up strategies. With more than 85% of capital invested in Portugal and backed by a €28 m EIF anchor commitment, the fund combines rigorous due diligence, downside-protection deal structures (dividend preference, anti-dilution), and active portfolio management to achieve an IRR above 20% and 3.3× MoM over a ten-year horizon. The strategy emphasizes ESG integration, sector and geographic diversification, and a clear exit roadmap within a 5-year investment period followed by a 5-year harvest period.