the new economy: investing in tomorrow, today
the future of investing
catalyzing progress by investing in innovative, high-growth, high-return companies that drive technological, environmental, and societal advancements and shape the new economy.
We are a Zurich-based investment boutique / multi-family office allocating private and institutional capital in exceptional direct investments and specialized funds in the alternative markets space. We target market returns and risk-return adjusted profiles while aligning our investments with environmental and social goals. Our active, hands-on approach aims at adding value throughout the value chain of our portfolio companies, coaching and helping them grow. Highly collaborative by nature, we pool expertise and capacity with aligned co-investors and specialists, leveraging our vast international network in the sustainability segment to minimize risk and maximize both financial and societal impact.
urban agriculture with in-door, vertical basil herb farming with energy efficient special LED lighting, combining fish aquaculture with hydroponics
with a nearly USD 200bn value and growth rates of over 20% annually, e-mobility is a promising solution for future greenhouse gas reduction
zero-waste, reusable plastic-free and eco-friendly daily utensils can help prevent marine pollution and preserve aquatic ecosystems
with more than 400,000 species found in almost every habitat, beetle diversity showcase co-evolution and adaptation and how easily biodiversity can be threatened from overconsumption and pollution
half of small and medium enterprises of less advanced, peripheral and developing world economies, while being major contributors to job creation and local economic development, have trillions of annual unmet financing needs
urban agriculture with in-door, vertical basil herb farming with energy efficient special LED lighting, combining fish aquaculture with hydroponics
with a nearly USD 200bn value and growth rates of over 20% annually, e-mobility is a promising solution for future greenhouse gas reduction
zero-waste, reusable plastic-free and eco-friendly daily utensils can help prevent marine pollution and preserve aquatic ecosystems
with more than 400,000 species found in almost every habitat, beetle diversity showcase co-evolution and adaptation and how easily biodiversity can be threatened from overconsumption and pollution
half of small and medium enterprises of less advanced, peripheral and developing world economies, while being major contributors to job creation and local economic development, have trillions of annual unmet financing needs
the swiss impact office
track record
exceptional track record,
spanning three decades,
with hundreds of millions
into well balanced diversified portfolios, with funds and direct investments sourced from a vast global sustainability network
investment opportunities
we focus on innovative companies and funds, addressing high growth areas of the future economy, that can deliver superior returns while maintaining balanced risk profiles in alignment with environment and society
our offering
bespoke strategic advisory
paired with comprehensive A-Z investment management,
from sourcing to due diligence, structuring, execution,
and portfolio monitoring and reporting
investment areas examples
combining agriculture and technology with use of aquaponics and biofertilizers in vertical farming production with renewable energy sources can achieve zero pesticides use and substantially less land and water use
USD 50 billion market by 2030
over 10% annual growth rate
reducing greenhouse gas emissions from the transportation sector (largest contributor to global carbon emissions); e-mobility represents a shift towards electric vehicles and related infrastructure for a cleaner, better future
USD 2 trillion market by 2030
over 20% annual growth rate
the market for green real estate is expected to more than double by 2030, driven by increasing environmental concerns, innovative new materials and energy efficiency / carbon reduction regulation
USD 1.3 trillion market by 2030
over 10% annual growth rate
thought leadership in sustainable investments
At the SIO we believe that successful investments require deep market insights, strong partnerships, and access to a rich pipeline. High-quality industry events allow us to identify synergies to help our portfolio companies scale, source new investments, and share our expertise to inspire and drive the global impact community forward.
These conferences are platforms for dialogue and collaboration and allow us to navigate the rapidly evolving landscape of sustainable finance, technological innovation, and pressing global challenges.
Every year we actively participate, present at, and strategically support leading industry events that shape the future of Impact Investing.
In 2025, we are proud to play a key role in two major conferences:
3rd International Hellenic Impact Investing Conference (#HIIC25) – "Scaling Impact" Southeast Europe’s premier impact event, taking place in Athens in early October (dates TBA), followed by an Impact Weekend featuring cultural and culinary experiences. www.impactconference.gr
Phenix Impact Summit Europe – "The New DNA of Institutional Investments" A flagship gathering in Amsterdam (April 1-2, 2024), bringing together institutional investors, fund managers, and thought leaders to drive impact investment strategies. www.phenixcapitalgroup.com
(contact organizers for sponsorship opportunities, side events, partnerships and speaker inquiries)
our thematic priorities
environmental advancement
nature finance /
carbon strategies
elimination of threats and promotion of global biodiversity, with a pro-active approach, through investments in innovative technologies and smart business models
clean tech
clean energy
transition to clean energy sources with renewable energy infrastructure, environmental and energy efficient technologies
sustainable lifestyles
sustainable
food chains
improvement of nutritional value of food, and protection of environmental capital through local production / consumption, new processes, and smart technologies
responsible
consumer goods
transition to responsible consumerism with sustainable, natural, low-waste, carbon-neutral, recycled and recyclable goods in fashion, cosmetics and household
access to finance
sme lending
factoring
promotion of local economic development to alleviate poverty by providing access to finance to micro-, small- and medium enterprises in peripheral Europe and the developing world
trade
finance
transformation of the international trading system to support environmental protection and social progress, through the optimization of trade value chains from sourcing to distribution
environmental advancement
biodiversity
protection
elimination of threats and promotion of global biodiversity, with a pro-active approach, through investments in innovative technologies and smart business models
clean tech
clean energy
transition to clean energy sources with renewable energy infrastructure, environmental and energy efficient technologies
sustainable lifestyles
sustainable
food chains
improvement of nutritional value of food, and protection of environmental capital through local production / consumption, new processes, and smart technologies
responsible
consumer goods
transition to responsible consumerism with sustainable, natural, low-waste, carbon-neutral, recycled and recyclable goods in fashion, cosmetics and household
access to finance
sme lending
factoring
promotion of local economic development to alleviate poverty by providing access to finance to micro-, small- and medium enterprises in peripheral Europe and the developing world
trade
finance
transformation of the international trading system to support environmental protection and social progress, through the optimization of trade value chains from sourcing to distribution
our focus
strategy
vision / mission alignment
thematic priorities
portfolio construction
direct investments
growth stage venture capital
club deals
co-investments
investment products
special purpose vehicles
specialized funds
new thematic products
our focus
strategy
vision / mission alignment
thematic priorities
portfolio construction
direct investments
growth stage venture capital
club deals
co-investments
investment products
special purpose vehicles
specialized funds
new thematic products
comprehensive services offering
INVESTMENT MANAGEMENT
IMPACT FUNDS
Semi-liquid evergreen debt funds
Thematic VC / PE funds
IMPACT DIRECTS
Series A
Series B
ADVISORY
STRATEGY
Vision / mission alignment
Thematic priorities
Portfolio construction
PRODUCTS
Financial impact products structuring
Monitoring & reporting
INVESTMENT READINESS
Compliance to frameworks
“Impact” marketing & fundraising
investment showcase
Generation Forest Invest
Generation Forest Invest is a Dutch holding company focused on mostly native, biodiverse reforestation & enhanced carbon sequestration in the tropics, aiming to develop as many Generation Forests as possible in the shortest amount of time.
It combines a unique Nature Based Solution with enhanced investor returns through the sale of sustainable timber and carbon certificates while achieving a high impact profile through biodiversity restoration, carbon sequestration and the reduction of rural poverty.
Generation Forest Invest is part of three different entities under the Generation Forest umbrella, including a foundation and a cooperative, where everyone can support the Generation Forest cause at an individual level.
examples from our fund investments
Food Transition Impact Fund
Luxembourg / Europe
Evergreen impact fund investing in innovative ventures throughout the European food value chain to facilitate the long-term transition to sustainable food and agriculture.
Impact Trade Finance Fund
Luxembourg / Global
Trade finance fund with global operations and strong impact focus focusing on short-term financings with commodity trading, and import/export credit facilities.
SME Lending Impact Fund
Luxembourg / Europe & EM
Impact fund focusing on providing factoring and short- to medium-term credit products to underserved micro- and small enterprises in peripheral Europe and emerging markets.
Fintech Loans Impact Fund
Luxembourg / Emerging Markets
High performing Impact Fund focusing on access to finance by providing smart loans and fintech solutions to innovative, growth companies in selected, stable emerging markets.
Food Transition Impact Fund
Luxembourg / Europe
Evergreen impact fund investing in innovative ventures throughout the European food value chain to facilitate the long-term transition to sustainable food and agriculture.
Impact Trade Finance Fund
Luxembourg / Global
Trade finance fund with global operations and strong impact focus focusing on short-term financings with commodity trading, and import/export credit facilities.
SME Lending Impact Fund
Luxembourg / Europe & EM
Impact fund focusing on providing factoring and short- to medium-term credit products to underserved micro- and small enterprises in peripheral Europe and emerging markets.
Fintech Loans Impact Fund
Luxembourg / Emerging Markets
High performing Impact Fund focusing on access to finance by providing smart loans and fintech solutions to innovative, growth companies in selected, stable emerging markets.
Food Transition Impact Fund
Luxembourg / Europe
Evergreen impact fund investing in innovative ventures throughout the European food value chain to facilitate the long-term transition to sustainable food and agriculture.
Impact Trade Finance Fund
Luxembourg / Global
Trade finance fund with global operations and strong impact focus focusing on short-term financings with commodity trading, and import/export credit facilities.
SME Lending Impact Fund
Luxembourg / Europe & ΕΜ
Impact fund focusing on providing factoring and short- to medium-term credit products to underserved micro- and small enterprises in peripheral Europe and emerging markets.
Fintech Loans Impact Fund
Luxembourg / Emerging Markets
High performing Impact Fund focusing on access to finance by providing smart loans and fintech solutions to innovative, growth companies in selected, stable emerging markets.
examples from our direct investments
Agrivoltaics Technology
Greece / Netherlands
Market leader in agrivoltaics nanotechnology producing innovative glass solutions for the greenhouse and open installation agricultural photovoltaics markets.
Solar Infrastructure Bond
UK / SE Europe
Primary issue of short-maturity green bond to bridge finance advancement of existing GW pipeline with the development, construction and operation of solar parks in Eastern Europe.
Reforestation & Carbon
Netherlands / Panama
Proven, innovative forestry concept that combines climate protection and economic returns through biodiverse reforestation and carbon sequestration in the tropics.
Ethical Cosmetics
Greece / Cyprus
Pioneering 10-year impact venture focusing on sustainable, ethical and professional personal care products with distribution in online B2C platforms and specialized B2B channels.
Agrivoltaics Technology
Greece / Netherlands
Market leader in agrivoltaics nanotechnology producing innovative glass solutions for the greenhouse and open installation agricultural photovoltaics markets.
Solar Infrastructure Bond
UK / SE Europe
Primary issue of short-maturity green bond to bridge finance advancement of existing GW pipeline with the development, construction and operation of solar parks in Eastern Europe.
Reforestation & Carbon
Netherlands / Panama
Proven, innovative forestry concept that combines climate protection and economic returns through biodiverse reforestation and carbon sequestration in the tropics.
Ethical Cosmetics
Greece / Cyprus
Pioneering 10-year impact venture focusing on sustainable, ethical and professional personal care products with distribution in online B2C platforms and specialized B2B channels.
Reforestation & Carbon Sequestration
Netherlands / Panama
Proven, innovative forestry concept that combines climate protection and economic returns through biodiverse reforestation and carbon sequestration in the tropics.
Solar Infrastructure Bond
United Kingdom / Eastern Europe
Primary issue of short-maturity green bond to bridge finance advancement of existing GW pipeline with the development, construction and operation of solar parks in Eastern Europe.
Agrivoltaics Technology
Greece / Netherlands
Market leader in Agrivoltaics nanotechnology producing innovative glass solutions for the greenhouse and open installation agricultural photovoltaics markets.
Ethical Cosmetics
Greece / Cyprus
Pioneering 10-year impact venture focusing on sustainable, ethical and professional personal care products with distribution in online B2C platforms and specialized B2B channels.
tell us about your business model
we would love to learn more about what your vision and business model - to submit your investment proposal, click below:
about the founder
Kostis Tselenis – managing partner SIO
Kostis founded the SIO with the aim of advancing sustainable and impact-driven investments. With over two decades of experience in investment banking and investment management, he has been involved in a range of investments in innovative companies and funds, focusing on long-term positive financial and societal outcomes. He has served on the boards of forward thinking organizations contributing to efforts that bridge finance and sustainability. Kostis values thoughtful decision-making and collaboration, working closely with his international network of investors, experts, and sustainability leaders. He regularly participates in international discussions sharing insights from his experience. His work is driven by a belief in the potential of finance to support a more sustainable and resilient economy.
selected speeches and panels
REPowerEU panel
Opening Words
Sustainable Finance panel
impact investing lectures
