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Top 15 Sustainability Startup Investors in Luxembourg in September 2025

Last updated: Sep 2025 A list of 15 angel investors and VC (Venture Capital) funds that invest in Sustainability startups based in Luxembourg. We rank investors based on the number of investments they made in Sustainability companies from Luxembourg. We update this investor list every month.

Top 15 Sustainability Startup Investors in Luxembourg in September 2025

Investor	Sustainability Luxembourg investments
Eurefi	1
Gérard Schockmel	1
Industrial Development Corporation	1
William Ahlefeldt-Laurvig	1
ROC	1
Akiles	1
BonVenture	1
Andia Shtepani	1
Elisabeth Ahlefeldt-Laurvig	1
DMA	1
Sustainable Ventures	1
Carsten Ullrich	1
Demeter	1
EIC Fund	1
Diane Ries	1

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Investor list

Eurefi is contributing fully to the development of a new cross- border economic area.

Investment focus

Manufacturing, Precious Metals
Funding Round
Luxembourg

Portfolio highlights

Saturne Technology — Saturne Technology is specialized in laser-cutting, laser-drilling, laser-welding and laser-cladding, using a manufacturing process by Selective Laser Melting (SLM) (i.e. metallic 3D-printing using fine metallic-powder bed).

Gérard Schockmel

Investment focus

Social Media, Social Network, Sustainability
Seed
Luxembourg

Portfolio highlights

Greenworlder — Greenworlder is a platform for sustainability. You can share and learn tips for sustainable living, reflect on your sustainable experiences, and read or write articles on sustainability.

The Industrial Development Corporation of South Africa Ltd (IDC) is a national development finance institution set up to promote economic growth and industrial development.

Investment focus

Renewable Energy, Mobile, Energy
Debt Financing, Series A, Funding Round
South Africa, Canada, Sweden

Portfolio highlights

AMEA Power — Founded in 2016, AMEA Power has assembled a leading team of global industry experts to deliver clean energy projects across Africa, the Middle East and other emerging markets.
Pele Energy Group — Pele Energy Group owns and runs renewable energy infrastructure in addition to providing economic and community development consulting services.
Pele Green Energy — Pele Green Energy is an Independent Power Producer that develops, owns, procures, builds, and operates renewable energy power projects, including Small Scale Embedded Generation and utility scale power plants, and is the leading South African Independent Power Producer in the Renewable Energy Independent Power Producer Procurement, REIPPPProgramme.

William is an experienced engineer with a broad background including forestry, the energy sector and IT start-up ventures. He has a wide experience in taking projects from idea stage through development to launch and all the way to market. In Greenworlder, William has been the driving force behind turning Peter’s vision into reality.https://greenworlder.com/william-ahlefeldt/

Investment focus

Social Media, Social Network, Sustainability
Seed
Luxembourg

Portfolio highlights

Greenworlder — Greenworlder is a platform for sustainability. You can share and learn tips for sustainable living, reflect on your sustainable experiences, and read or write articles on sustainability.

Family Office

Investment focus

Social Media, Social Network, Sustainability
Seed
Luxembourg

Portfolio highlights

Greenworlder — Greenworlder is a platform for sustainability. You can share and learn tips for sustainable living, reflect on your sustainable experiences, and read or write articles on sustainability.

Akiles is a Belgian Evergreen Investment Company focussing on Growth Capital. Managed by Christophe Rousseaux, Kurt Huyghe, Laurent Puissant Baeyens and

Investment focus

Health Care, Software, Wellness
Funding Round, Private Equity, Series A
Belgium, France, Luxembourg

Portfolio highlights

HYPNO VR — HypnoVR is a virtual reality software for anesthesia, treatment of pain, and anxiety. It was founded in 2016 and is based in Strasbourg, France.
moonbird — Slow breathing is the easiest way to relieve stress and promote relaxation. Moonbird makes it intuitive and easy to do breathing exercises.
Saturne Technology — Saturne Technology is specialized in laser-cutting, laser-drilling, laser-welding and laser-cladding, using a manufacturing process by Selective Laser Melting (SLM) (i.e. metallic 3D-printing using fine metallic-powder bed).

BONVENTURE empowers impact-driven founders and impact investors across DACH with capital, expertise, and a strong network for true impact and return.

Investment focus

Health Care, Software, SaaS
Funding Round, Seed, Series A
Germany, Austria, Estonia

Portfolio highlights

ScrapBees — ScrapBees is a pick-up service for the recycling of scrap metal from commercial businesses and private households.
project bcause — project bcause is a digital platform where individuals can fund good projects in a flexible and collaborative manner, ranging from donations to investments. project bcause is headquartered in Berlin, Germany and was founded in 2021.
Vivira — Vivira Health Lab focuses on making physical rehab programs available to everyone.

Andia Shtepani

Investment focus

Social Media, Social Network, Sustainability
Seed
Luxembourg

Portfolio highlights

Greenworlder — Greenworlder is a platform for sustainability. You can share and learn tips for sustainable living, reflect on your sustainable experiences, and read or write articles on sustainability.

Elisabeth Ahlefeldt-Laurvig

Investment focus

Social Media, Social Network, Sustainability
Seed
Luxembourg

Portfolio highlights

Greenworlder — Greenworlder is a platform for sustainability. You can share and learn tips for sustainable living, reflect on your sustainable experiences, and read or write articles on sustainability.

Family Office

Investment focus

Social Media, Social Network, Sustainability
Seed
Luxembourg

Portfolio highlights

Greenworlder — Greenworlder is a platform for sustainability. You can share and learn tips for sustainable living, reflect on your sustainable experiences, and read or write articles on sustainability.

Welcome to the home of Climate Tech. We are a full service ecosystem empowering sustainable start-ups to scale through community, investment, innovation and workspace.

Investment focus

Renewable Energy, Sustainability, Biotechnology
Pre-Seed, Seed, Funding Round
United Kingdom, Israel, Luxembourg

Portfolio highlights

PlantSea — PlantSea manufactures and develops sustainable products using seaweed and aquaculture materials. It offers bioplastics items as biodegradable alternatives. PlantSea is based in Gaerwen, England.
Uplift360 — Uplift360 is a greentech startup working in advanced material circular economy (redesign, reuse, regenerate and recycle), uniquely focused on the defence and security sector.
Danu Robotics — Danu Robotics manufactures AI guided robotic systems for sorting recyclable waste - highly accurate, modular multi-arm systems that retrofit into existing MRF operations and collates EPR data.

Carsten Ullrich

Investment focus

Social Media, Social Network, Sustainability
Seed
Luxembourg

Portfolio highlights

Greenworlder — Greenworlder is a platform for sustainability. You can share and learn tips for sustainable living, reflect on your sustainable experiences, and read or write articles on sustainability.

Demeter is a major player in venture capital and private equity for the energy and ecological transition. They invest from 500 K€ to 30 M€ to support companies at all stages of their development: innovative startups, high growth SMEs and infrastructure projects.

Investment focus

Manufacturing, Software, Renewable Energy
Funding Round, Seed, Series A
France, Germany, Slovenia

Portfolio highlights

AISPRID — AISPRID is a robotic company that manufactures autonomous robots for soft fruit picking.
Praysbee — Praysbee is a French agri-tech startup that develops innovative, environmentally friendly spraying systems for vineyards. Their main product, the Wulp® boom, reduces chemical drift by over 90%, helping winegrowers spray more precisely and sustainably.
Sirius NeoSight — Sirius NeoSight is a biotech and pharmaceutical company that detects subclinical neo-cancers and provide treatment for it.

start-ups, SMEs, technology, co-investment

Investment focus

Biotechnology, Health Care, Information Technology
Pre-Seed, Seed, Funding Round
Germany, The Netherlands, Austria

Portfolio highlights

Filuta AI — Operationalized Composite Artificial Intelligence
Resistell AG — Resistell is a antibiotic resistance test.
iThera Medical — Explore optoacoustic imaging technology for non-invasive in vivo visualization and quantification of disease-related tissue biomarkers.

Diane Ries

Investment focus

Social Media, Social Network, Sustainability
Seed
Luxembourg

Portfolio highlights

Greenworlder — Greenworlder is a platform for sustainability. You can share and learn tips for sustainable living, reflect on your sustainable experiences, and read or write articles on sustainability.

Investors by industry

Artificial intelligence

Climate

Consumer

Community