Marseille (France) – 20 January 2026 – Opsealog, a pioneer in operational and environmental performance solutions for maritime fleets, today announced a major evolution in its corporate structure following a strategic carve-out. The management team has joined forces with the Impact Ocean Capital fund (managed by GO Capital) and Sud Mer Invest (Banque Populaire Group) to acquire the entire share capital of the company.
A New Level of Autonomy to Accelerate Global Expansion
After ten years of continuous growth and the deployment of its solutions across more than 1,000 vessels worldwide, Opsealog is gaining full strategic independence. This transaction provides the company with renewed financial and operational agility to scale internationally and reinforces product innovation by leveraging AI and machine learning models. It also enables Opsealog to seize emerging opportunities driven by the decarbonization of the maritime industry, with the ambition of establishing itself as the leading global name in offshore and maritime operations management within five years.
Technological Expertise Validated by Concrete Results and Through Long-Term Client Partnerships
Leveraging advanced analysis of onboard operational data, Opsealog empowers members of the maritime industry to achieve both economic efficiency and measurable decarbonization. Its solutions deliver up to 30% reduction in fuel consumption per vessel, representing average annual savings of 210 tonnes of CO₂ per unit.
Over the last 10 years, Opsealog has helped prevent more than 200,000 tonnes of CO₂ emissions worldwide – a testament to the impact and scalability of its technology.
Beyond Fuel: A Comprehensive Operational Intelligence Platform for Maritime
While fuel efficiency remains a cornerstone of Opsealog’s value, the company is extending its supporting capabilities to clients across a much broader set of operational challenges, including contract performance and vessel invoicing; fleet utilization optimization; waste management performance monitoring; regulatory reporting and compliance; as well as ESG and decarbonization tracking at scale.
This integrated value proposition positions Opsealog as a holistic operational excellence partner, not only a fuel optimization tool, combining operational performance and environmental impact reduction.
Arnaud DIANOUX, Founder & CEO of Opsealog: “After celebrating Opsealog’s 10th anniversary, we are proud to embark on this new chapter alongside GO Capital. This moment marks a renewed commitment to combining maritime expertise and digital innovation to improve operational efficiency and accelerate decarbonization worldwide.”
“This strategic transaction will allow us to scale our commercial development, enhance our solutions, and deliver even greater value to our clients – supporting the maritime industry’s transition toward more efficient and environmentally responsible operations.”
Jérôme GUERET, Managing Director of GO Capital – Impact Océan Capital: “This transition marks a decisive milestone in Opsealog’s journey. We are convinced that this new structure, built through close collaboration with the management team, gives the company the agility and resources needed to capture significant market opportunities. Opsealog’s technological excellence and the expertise of its teams position it as a future leader in maritime and offshore performance and decarbonization.”
Benoît VIGUIER, President of Sud Mer Invest: “Opsealog is already a key partner for maritime energy performance. This carve-out empowers the management team to deliver an ambitious growth plan centered on emissions reduction and environmental performance. We are delighted to support this new phase of development.”
-END-
About Impact Ocean Capital (GO Capital)
GO CAPITAL is a leading impact-focused asset management company authorized by the AMF. Now part of the MAGELLIM Group (nearly €5 billion in assets), GO Capital manages close to €400 million across several thematic funds. The Impact Ocean Capital fund accelerates the maritime sector’s ecological transition by investing in SMEs committed to decarbonizing maritime transport, protecting marine ecosystems, and strengthening the blue economy.
Learn more: https://www.gocapital.fr/en/fonds-impact-ocean-capital
About Sud Mer Invest
Sud Mer Invest supports the development of maritime and coastal activities in the South and Occitanie regions. As a subsidiary of Banque Populaire du Sud and managed by GO Capital, the fund aims to invest €7 million across the Mediterranean coast in innovative companies strengthening the blue economy.
About Opsealog
Opsealog is a French SaaS company specialized in the Marine Offshore sector. It blends field expertise with advanced technology to drive operational excellence. Through its Efficiency as a Service model, Opsealog turns raw vessel data into actionable recommendations, ensuring they drive real impact onboard while benefiting key decision makers.
Since 2015, it has empowered over 1,000 vessels worldwide. Opsealog ensures charterers and shipowners optimize performance, cut costs, and reduce their environmental impact.
Key stakeholders
- Company: Opsealog (Arnaud Dianoux, Damien Bertin)
- Financial Investors: GO Capital (Clémentine Pecastaing, Jérôme Guêret, Damien Jouanneau)
- Company and Executive Lawyers: Spark (Florian Mayor and Guilhem Sauve)
- Financial Investors’ Lawyers: Fidal Avocats (Jacques Darbois and Anais Abchar)
- Financial Investors – Financial Due Diligence: Excelis
- Financial Investors – Legal, Tax, and Employment Due Diligence: Excelis
- Financial Investors – Impact and ESG Due Diligence: Lysi