# Top 15 Oil and Gas Startup Investors in France in May 2026

## John Browne
- Type: Angel
- Relevant deals: 1
- Stages: Series A
- Focus: GPS, Energy, Big Data

John Browne serves as part of the advisory board at Giant Ventures.

## Antoine de Chassy
- Type: Angel
- Location: San Francisco, California, United States
- Relevant deals: 1
- Stages: Series A
- Focus: Advertising, Oil and Gas

Antoine de Chassy has been President of SPOT Image Corporation.Antoine De Chassy served for 13 years as Vice President for Strategy and Chief Operating Officer of SPOT Image, S.A. in Toulouse, France, where he oversaw SPOT’s network of global subsidiaries and offices. Prior to joining SPOT, Antoine De Chassy served as president of Fleximage, S.A.

## Sanne Manders
- Type: Angel
- Location: San Francisco, California, United States
- Relevant deals: 1
- Stages: Seed, Series A
- Focus: Big Data, Hardware, Software

Sanne Manders is the President at Flexport .

## Jean-Gabriel Levon
- Type: Angel
- Relevant deals: 1
- Stages: Seed, Series A
- Focus: Drones, GreenTech, Advertising

Jean-Gabriel is the COO of the Company. As an engineer and entrepreneur, he and his team lead the development of Ynsect operations in its industrial sites. He has a cumulative 8 years of experience in industrial companies and projects.Prior to founding Ynsect in 2011, Jean-Gabriel worked and traveled as a consultant for Schlumberger in the oilindustry.

## Ouest Croissance
- Type: VC Fund
- Location: Saint-herblain, Pays de la Loire, France
- Relevant deals: 1
- Stages: Series A, Private Equity
- Focus: Software, Water, Home and Garden

Partner companies not listed, Western Growth is specialized for over 20 years in operations mobility of capital and financing needs of growing businesses. Player in capital investment in the Far West, they offer the leaders of financial solutions to support the major stages in the life of the company - reclassification, transmission anddevelopment. The aim of West Growth: create long-term value for shareholders and executives.More than an investor, the Western philosophy of growth is based on partnerships with businesses. They act without constraint of time and are invested with managers in the strategic thinking, the study of growth and external financing, the optimization of the financing solutions required means and the establishment of better systems of motivation and 'shares. Since its inception, more than 400 partner companies have regional trust West Growth.

## Index Ventures
- Type: VC Fund
- Location: San Francisco, California, United States
- Relevant deals: 1
- Stages: Series A, Series B, Seed
- Focus: Software, E-Commerce, Internet

Index Ventures is an international venture capital firm with dual headquarters in San Francisco and London, investing in technology-enabled companies with a focus on e-commerce, fintech, mobility, gaming, infrastructure/AI, and security.

## Blue Oceans Partners
- Type: VC Fund
- Location: Paris, Ile-de-France, France
- Relevant deals: 1
- Stages: Series A, Series B
- Focus: Biotechnology, Aerospace, Advertising

Blue Oceans Partners invests in and supports companies scaling up innovations that help address the most critical threats to our ocean, while seizing structural market opportunities. Our primary focus is currently on solutions to overfishing and plastic pollution.
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## True Green Capital Management
- Type: VC Fund
- Location: Westport, Connecticut, United States
- Relevant deals: 1
- Stages: Seed
- Focus: Banking, Oil and Gas, Renewable Energy

Founded in July 2011, True Green Capital Management LLC is a privately owned, specialized energy infrastructure asset management firm based in Westport, Connecticut.

## Polytechnique Ventures
- Type: VC Fund
- Location: Paris, Ile-de-France, France
- Relevant deals: 1
- Stages: Seed, Series A
- Focus: SaaS, Energy, Software

Polytechnique Ventures support entrepreneurs from the School's ecosystem.

## IRIS
- Type: VC Fund
- Location: Paris, Ile-de-France, France
- Relevant deals: 1
- Stages: Series B, Series C
- Focus: Software, E-Commerce, Mobile

Iris Capital is a European VC specialized in digital, fueling entrepreneurs from early stage to growth since 1986. From Paris, Berlin, San Francisco, Tel Aviv, Tokyo and Dubai, Iris Capital supports start-ups and scale-ups in their global expansion with the unique support on its multi corporate partners, including Orange, Publicis, Valeo andBRED.Iris Capital invests in various industries, from platforms to Saas, AdTech, IT infrastructure, cybersecurity, IoT, robotics and mobile services, and is always looking for ambitious industry disrupters led by unique entrepreneurs across the world.

## Karista
- Type: VC Fund
- Location: Paris, Ile-de-France, France
- Relevant deals: 1
- Stages: Seed, Series A, Series B
- Focus: Software, Biotechnology, Health Care

Karista is an early-stage venture capital firm created in 2001 investing in Health, Digital, Tech, and NewSpace.

## Demeter Partners
- Type: VC Fund
- Location: Paris, Ile-de-France, France
- Relevant deals: 1
- Stages: Series A, Private Equity
- Focus: Manufacturing, Energy, Electronics

Demeter is a major player in venture capital and private equity for the ecological transition. We invest from €1m to €30m to support companies at all stages of their development: innovative startups, high growth SMEs and infrastructure projects.

## ODYSSEE VENTURE
- Type: VC Fund
- Location: Paris, Ile-de-France, France
- Relevant deals: 1
- Stages: Series A, Series B
- Focus: Software, Information Technology, Internet

ODYSSEE VENTURE is a private equity firm. The Company provides independent financial advisory services to management companies, family office, and major institutional networks. It was founded by Mathieu Boillet and Sébastien Sassolas in 1999 and is based in Paris, France.

## Seventure Partners
- Type: VC Fund
- Location: Paris, Ile-de-France, France
- Relevant deals: 1
- Stages: Series A, Series B
- Focus: Biotechnology, Health Care, Software

Seventure Partners is a French venture capital firm targeting in information and communication technology, and life sciences companies. It funds innovation and participates in the entrepreneurial adventure, alongside entrepreneurs and sharing their passion.Founded in 1997, Seventure Partners is one of the European leaders in venture capital, with€ 660 million under management as of December 31, 2016. It is an active partner of innovative companies that, according to the management team, show strong growth potential and evolving in two fields of activity: Digital Technologies and Life Sciences. With more than 20 employees, including some 15 investors, Seventure Partners has a proven track record and in-depth expertise in technology, entrepreneurship, and various private equity operations.Seventure's goal is to identify and support the development of tomorrow's European leaders in order to accelerate their growth. To do this, the firm provides entrepreneurs with the expertise, networks, and know-how of its internal team of investors.

## CM-CIC Capital Prive
- Type: VC Fund
- Location: Paris, Ile-de-France, France
- Relevant deals: 1
- Stages: Series A, Series B
- Focus: Software, Internet, E-Commerce

CM-CIC Capital Prive is a French investment company focused on SMEs and innovative companies.

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