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AENU

aenu.com

“Rewriting the VC rulebook to deliver high returns with high impact. We invest in founders building climate and social impact technologies with intentional, measurable, net-positive outcomes at meaningful scale.”

$1M – $4M
Check Size
Leads
Lead Tendency
01Investment Thesis

Rewriting the VC rulebook to deliver high returns with high impact. We invest in founders building climate and social impact technologies with intentional, measurable, net-positive outcomes at meaningful scale.

Exclusion Criteria

Not interested in traditional VC approaches, companies without clear impact intention, or investments that don't align with climate or social equality themes

02Founder Preferences

Ambitious founders building proprietary technology solutions, founders committed to impact outcomes, entrepreneurs with track record or strong technical expertise

03Investment Team
SB
Siobhan Brewster
04F4 Research Brief

AENU Ventures Research

Investment Thesis and Philosophy

AENU is a European venture capital firm dedicated to rewriting the venture capital rulebook to deliver high returns with high impact. Founded by experienced entrepreneurs (Dailydeal, Forto) and investors (Earlybird, Speedinvest), AENU operates as an evergreen impact fund focused on climate technology and social equality companies. The fund's core belief is that the venture capital industry must evolve to align returns with positive impact, creating value for founders, investors, and society.

The AENU team is united by the ambition to drive systemic change in venture capital towards impact-driven investing, accessibility, and stakeholder alignment. They are executing against a 30-year roadmap for transformation and are certified as a B Corporation, walking the talk on their commitment to stakeholder value.

Investment Strategy and Focus Areas

AENU concentrates on two primary impact areas:

Climate Impact (majority of portfolio)

  • Energy transition: production, storage, distribution
  • Carbon removal: capture, sequestration, circularity
  • Food & AgriTech: plant-based/lab protein, regenerative farming
  • Enabling tech: carbon/biodiversity SaaS, mobility, fintech
  • Deep-tech moonshots and enabling technologies

Social Impact

  • Inclusive education technology (pre-school to higher education)
  • Empowerment of underrepresented groups (diversity, equality, inclusion)
  • Reskilling/upskilling including VR/AR learning
  • Sustainable fintech (microfinance, insurance, social security)

Each investment is assessed on impact intentionality, measurability, net-positive outcomes, interlock with core business, and meaningful scope relative to the problem being addressed.

Investment Stage and Ticket Size

Investment strategy:

  • Stage: Seed and Series A primarily, occasional pre-seed for serial entrepreneurs
  • Ticket size: €1-4 million initial investments, with follow-on capacity up to €10 million
  • Role: Preferred co-lead or lead investor with board representation
  • Geography: Europe with focus on DACH, UK, and Nordics
  • Approach: Active value creation across entrepreneurial experience, impact know-how, B2B market access, and capital formation

AENU focuses on early stage companies where proprietary technology with high defensibility is core to the company's DNA, spanning both software and hardware.

Fund and Capital Status

AENU successfully closed its first fund significantly above target:

  • Fund size: €170 million (hard-cap closure)
  • Target size: €140 million
  • Fund type: Evergreen impact fund
  • Status: Actively deploying capital with strong institutional LP base

The fund's above-target close demonstrates strong LP confidence in the impact-driven thesis and track record.

Team and Leadership

Founders & Partners:

  • Fabian Heilemann - Founder & CEO, former serial entrepreneur and investor
  • Ferry Heilemann - Founder & Partner
  • Siobhan Brewster - Partner, brings investor expertise
  • Philip Specht - Partner

Investment Team:

  • Melina Sánchez Montañés - Principal
  • Robert Stoecker - Principal
  • Melusine Bliesener - Impact Investor
  • Leo Allgoewer - Impact Investor

Operations & Impact:

  • Daniel Zakowski - CFO & Operating Partner
  • Elena Harumi Stark - Head of Impact & Platform
  • Michelle Piontek - Impact & ESG Analyst

Ambassadors: Sebastian Steudtner (big-wave surfing world record holder) and Maya Gabeira (female wave record holder) serve as ambassadors embodying the fund's ethos of controlled risk-taking for transformative goals.

The team brings together successful entrepreneurial experience, deep investor expertise, and passionate commitment to climate and social impact.

Recent Activity and Market Position

AENU is one of Europe's 30 most active impact VCs:

  • Total investments: 49 companies
  • Latest investment: January 9, 2026 (Equitable Earth - €12.6M investment in nature-based carbon projects)
  • 2025 status: Ranked among Europe's most active impact venture investors
  • Certification: Certified as a B Corporation
  • 2024 Impact Report: Documented measurable impact across portfolio

The fund maintains consistent deal flow and has demonstrated ability to support follow-on rounds, with recent large investments indicating strong capital availability.

Value-Add and Support Model

AENU provides comprehensive support beyond capital:

  • Proprietary AENU resource hub for portfolio companies
  • Entrepreneurial experience and operational guidance
  • Impact methodology and measurement frameworks
  • B2B market access and customer introduction networks
  • Capital formation support for follow-on fundraising
  • Active board participation and governance
  • Access to ecosystem of impact-driven founders and investors

The fund's 30-year transformation roadmap positions it as a thought leader and infrastructure provider in impact-driven venture capital.

05Selected Portfolio
Aerospace & Defense
Beagle Systems
AgTech & Agriculture
Agreena
Climate & Sustainability
Monta·Heirloom·Alcemy·Greenlyte·Trawa
EdTech
Edurino
Fintech & Payments
ScyAI
Healthcare & Digital Health
Plume
Other
Equitable Earth·Aris·EPYR·UNDO
Open the full portfolio→
06Recent Updates

Fresh signals from public announcements, essays, and portfolio activity.

See full activity (8) →
Published an essay explaining the thesis behind AENU's seed investment in Plume, a geospatial AI platform for renewable energy site selection.
ESSAY·aenu.com
JUL 20, 2026
Published an essay on energy efficiency and demand-side flexibility as the cheapest path to grid capacity.
ESSAY·aenu.com
JUN 23, 2026
Released 2025 impact report demonstrating portfolio progress on climate and social impact metrics.
ESSAY·aenu.com
MAY 5, 2026
AENU's Siobhan Brewster discussed how the push for energy resilience is turning the tide for climate tech funding, in an interview with Impact Loop.
PRESS·impactloop.com
MAY 2026
Published essay exploring how operational data drives climate tech solutions.
ESSAY·aenu.com
APR 21, 2026
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Quick Reference
Check Size
$1M – $4M
Stages
Seed · Series A
Decision
Partnership
Sector Focus
Fintech & PaymentsReal Estate & PropTechBiotech & Life SciencesEdTechClimate & SustainabilityAgeTech & Longevity
Models
Climate TechClean EnergyCarbon RemovalAgriTechImpact Tech
Technology
Deep TechHardwareSoftware
See all Fintech & Payments investors →See all Real Estate & PropTech investors →See all Biotech & Life Sciences investors →
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Focus Areas
Fintech & PaymentsReal Estate & PropTechBiotech & Life SciencesEdTechClimate & SustainabilityAgeTech & Longevity

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F4 Intelligence Report · Last Researched August 3, 2026F4 Research Engine