Top 5 Sustainability Startup Investors in Slovenia (October 2026)

SOA develops leaders, cultivates ideas, and accelerates solutions to the biggest problems facing our ocean through the Leadership and Accelerator programs

Investment focus

Industry: Sustainability, Software, CleanTech
Stage:Seed, Pre-Seed, Venture - Series Unknown
Geography: United States, United Kingdom, France

Investor stats

Total investments: 53
Round size: Seed $25k–$2.5M; Pre-Seed $25k–$2.5M; Venture - Series Unknown $2.7M–$14M
Lead/follow: 25% lead, 75% follow
Last fund: May invest from a new fund soon — raised $1M in 2019

Portfolio highlights

Agriloops — Agriloops is reinventing aquaculture to produce eco-friendly products that are healthier and tastier. To carry out this mission, the Agriloops team gives all its power to a sustainable and innovative production mode, by designing the first aquaponic farm in salt water.
cosma — Cosma observes, maps and monitors the seabed to deliver open, neutral and affordable data at global scale.
PierSight Space — PierSight builds application-specific SAR satellite and drone systems for persistent maritime surveillance, EEZ monitoring, IUU fishing detection, and defense reconnaissance.

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Seed-stage VC fund for Central and Eastern Europe. 90+ companies backed.

Investment focus

Industry: Software, Artificial Intelligence, SaaS
Stage:Seed, Series A, Pre-Seed
Geography: Bulgaria, United Kingdom, United States

Investor stats

Total investments: 158
Round size: Seed $54k–$3.4M; Pre-Seed $216k–$2.8M; Series A $4.4M–$22M
Lead/follow: 20% lead, 80% follow
Last fund: May invest from a new fund soon — raised $85M in 2021

Portfolio highlights

nFuse.ai — nFuse scales your B2B sales with AI. Up to 30% revenue uplift, $1 per order processing cost, live in 30 days. No new apps, no behavior change.
Veridion — Veridion is a living digital replica of the business world. Decision-grade data for enterprise scale systems
Nanogram — Nanogram is an AI-powered gaming startup that creates an instant prompt-to-game platform, allowing anyone to build and share interactive short-form video games. Frequently described as "TikTok for mobile games," the company delivers an endless, vertical social feed of byte-sized, zero-download games that players swipe through and playinstantly.

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The European Investment Bank (EIB) offers lending, borrowing, and treasury services primarily within the European Union. It provides project loans for public and private sectors, loans to banks and intermediaries, structured finance products, guarantees, and securitization instruments for debts. Additionally, EIB offers equity and fund investmentproducts, including infrastructure and environmental funds, as well as venture capital funds. EIB also supports microfinance and risk-sharing finance for research and innovation, and provides technical expertise for sustainable energy projects. Its services include infrastructure advisory, urban development support, guarantees for transport infrastructure, and funding for public-private partnerships and small- to medium-sized enterprises. The bank serves various sectors, including transportation, energy, health, education, and agriculture.

Investment focus

Industry: Biotechnology, Energy, Health Care
Stage:Debt Financing, Post-IPO Debt, Venture - Series Unknown
Geography: France, Germany, Spain

Investor stats

Total investments: 595
Round size: Post-IPO Debt $18M–$587M; Debt Financing $16M–$355M; Venture - Series Unknown $8.7M–$90M
Lead/follow: 83% lead, 17% follow

Portfolio highlights

VaxThera — VaxThera develops and produces vaccines to prevents and treats diseases.
Santander Brasil — Banco Santander in Brazil, its largest division in Latin America and one of the world's most important, accounting for 50%.
Reactive Technologies — Reactive Technologies we are committed to enabling a more intelligent use of energy, for the largest and most complex business to the smallest household. Our aim is to develop new technologies that will positively assist the energy industry to deliver cleaner, greener and more affordable energy, through more efficient and effective energymanagement and control. Through our innovative, cloud-based solution for Corporate customers – Tradenergy® – we have begun this process and with our pipeline of ground breaking new technologies we intend to continue.

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AlpVent is a Swiss investment company investing in highly promising start-ups. As a result of 25 years of entrepreneurial experience, they understand the needs of entrepreneurs extremely well. By offering their investment capital and management consulting services to their start-ups they do their best to provide so-called smart money support.Manystart-up founders are excellent at developing products and services, however, they have difficulty promoting them. In order to support them, AlpVent has established a specialized sales department. In addition to providing sales analyses and other sales consulting services, they can even become an agent or distributor for a promising start-up. The services they currently offer are available in the demanding German-speaking countries and markets of South-Eastern Europe (Germany, Switzerland, Austria, Slovenia, and Croatia).

Investment focus

Industry: SaaS, Sports, Internet
Stage:Pre-Seed, Series A
Geography: Slovenia, United Kingdom

Investor stats

Total investments: 2
Lead/follow: 50% lead, 50% follow

Portfolio highlights

Quadrofoil — Visionaries, nautical enthusiast and game-changers that developed and produced the revolutionary all electric hydrofoiling watercraft.
Taia Translations — Translate files instantly with AI that learns your terminology. Edit with your team or use 2,000+ professional linguists. 204 languages, 65+ formats.

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