Realyze Ventures

What Realyze Ventures does

Realyze Ventures is a Cologne, Germany-based early-stage venture capital fund focused exclusively on European PropTech and ConTech startups. Established in 2022 as the successor to BitStone Capital and formalized through a March 2025 merger with MOMENI Ventures, the fund completed its first closing in June 2025 with approximately €50 million in assets under management. The fund deploys €0.5M to €3M tickets across pre-seed to Series A rounds, organized around three investment themes: rooting sustainability (compliance-driven ESG solutions), accelerating the energy transition (decentralized renewable generation and energy management), and addressing the shortage of craftsmen (productivity tools for trades).

The fund's core operating model is platform-based: investments are sourced and validated through an exclusive network of 40+ industry partners — Art-Invest Real Estate, Cordes & Graefe KG, Goldbeck, MOMENI, ZECH, Deutsche Pfandbriefbank AG — and supplemented by the December 2025 ATechX partnership providing access to a combined €130 billion real estate portfolio across Vonovia, Aroundtown, LEG, Supernova, and Round Hill Capital. Portfolio companies include plancraft (trades SaaS, €38M Series B led by Headline), companion.energy (industrial energy management, €7.8M seed), encosa (commercial battery storage, €25M seed), viboo (AI building management, €3.3M seed), alago (construction document AI, €7M pre-seed), VESTIGAS (construction supply chain, €8M seed), Vamo (heat pumps, €10M+ seed), and Fuchs & Eule (digital energy consulting).

Revenue is generated through conventional VC fund mechanics: a roughly 2% annual management fee on committed capital (~€1M run-rate on the €50M first close) plus carried interest exposure on exits. The management team of five General Partners — Tim Fischer (ex-JLL, Prologis, MOMENI), Manfred Heid (BitStone co-founder, €150M+ realized exits), Stefan Läufer (CDO of GC Group), David Nadge (ex-MOMENI Ventures, 750+ startup evaluations), and Kai Panitzki (BitStone founder) — is supported by eight venture partners, two investment managers, an investment associate, and a Director of Finance. The fund's customer base (LPs) consists of strategic industry players, family offices, and a European banking-sector institutional investor, with portfolio company end customers including STRABAG, GC Group, TotalEnergies, KPN, and Port of Antwerp-Bruges.

Name

Realyze Ventures

Legal name

Realyze Ventures Management GmbH

Website

https://realyzeventures.com

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

1–10 employees

Short description

Realyze Ventures is a Cologne-based European venture capital fund investing €0.5M–€3M in early-stage PropTech and ConTech startups. With ~€50M AUM at first closing, the fund targets sustainability, energy transition, and skilled labor solutions, supported by 40+ industry partners.

Ownership category

akta.pro rank

Product category

Venture Capital / Private Equity

NAICS

Other Financial Vehicles (525990), Portfolio Management and Investment Advice (523940)

SIC

Investors, Nec (6799)

akta.pro primary industry

Real Estate / PropTech Growth Equity (FSANACAH)

akta.pro secondary industries

Sustainable Real Assets (Green Real Estate, Land, Forestry) Funds (FSANAJAD), Renewables & Energy Transition Funds (Solar, Wind, Hydrogen, CCUS) (FSANAEAD)

Keywords

• Venture capital fund
• PropTech investments
• ConTech startups
• Early-stage equity investment
• Sustainable real estate technology

Headquarters

HQ city

Köln

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Others

Revenue model

1. Venture Capital Fund Management: Realyze Ventures generates returns through management fees and carried interest from its VC fund. The fund targets early-stage European technology startups driving climate and process efficiency in the built world, with a focus on real estate, construction, and energy sectors.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Realyze Ventures is a sector-focused early-stage venture capital fund that invests from pre-seed to Series A in European technology startups driving climate and process efficiency in the built world. The fund deploys initial investment tickets of €0.5M to €3M, supported by an exclusive network of 40+ industry partners that provide real-world testing environments and portfolio company validation across real estate, construction, energy, and skilled trades.

Product overview

Realyze Ventures operates as a sector-focused early-stage venture capital fund with approximately EUR 50 million in assets under management. The fund invests in European technology startups driving climate and process efficiency in the built world across three focus areas: rooting sustainability, accelerating the energy transition, and addressing the shortage of craftsmen. The portfolio includes portfolio companies such as Companion.energy (AI-driven energy management platform), encosa (battery storage solutions), alago (AI-powered construction workflow automation), viboo (AI-based building management), Vestigas (construction supply chain digitization), Fuchs & Eule (digital energy consulting), Vamo (heat pump platform), and plancraft (craft business SaaS).

Differentiator

Problem solved

Functional benefit

Brands

• Rooting Sustainability: Investment theme focusing on startups helping achieve the sustainability transition through legal requirements shifting focus towards sustainability and resource efficiency.
• Accelerating the Energy Transition
• Addressing Shortage of Craftsmen

Products and services

• Realyze Ventures Early-Stage VC Fund
• Portfolio Company Platform Support

Quantifiable outcome

• Portfolio companies received more than €200 million in financing in 2025
• +2 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability8 records

Feature3 records

Partnerships

Six partnerships are on record, tiered core, partner and customer/partner.

• ATechXcoreStrategic or Co-development Partner · 16 December 2025ATechX is Aroundtown's innovation and venture platform that Realyze Ventures joined as a cooperation partner. Startups benefit from testing solutions in real-world conditions in ATechX's European real estate portfolios (€130B combined portfolio) including Vonovia, Aroundtown, LEG Immobilien, Supernova Group, and Round Hill Capital. The partnership strengthens Realyze Ventures' ability to validate and scale portfolio company technologies.
• SiemenspartnerChannel Partner/ Reseller/ Distributor · 29 September 2025Leading building technology manufacturer that viboo partners with for hardware integration, enabling scalability through leveraging established hardware ecosystem rather than proprietary devices.
• DanfosspartnerChannel Partner/ Reseller/ Distributor · 29 September 2025Building technology manufacturer that viboo partners with for IoT device integration, supporting the company's hardware-agnostic approach.
• HälgpartnerChannel Partner/ Reseller/ Distributor · 29 September 2025Installation and facility management service provider that partners with viboo for building implementations and customer deployments.
• STRABAGcustomer/partnerChannel Partner/ Reseller/ Distributor · 9 April 2025Central Europe's largest construction company that has adopted VESTIGAS' technology at scale for supply chain digitization.
• GC Groupcustomer/partnerChannel Partner/ Reseller/ Distributor · 9 April 2025Leading European HVAC wholesaler that has adopted VESTIGAS' technology, with Stefan Läufer (Realyze GP) serving as CDO of GC group.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Pi Labs: London-based PropTech venture capital firm operating across Europe. Pi Labs is a direct peer to Realyze Ventures in the European PropTech investment space and has already co-invested with Realyze in Companion.energy's €7.8M seed round.
• MetaProp: New York-based PropTech venture capital firm managing multiple funds focused on real estate technology. MetaProp is comparable in vertical focus (PropTech-only) and is explicitly named in Realyze's venture partner Julia Arlt's prior advisory portfolio.
• Fifth Wall: US-based venture capital firm focused on technology for the real estate industry, managing the world's largest PropTech fund. Comparable as a dedicated PropTech specialist VC; Realyze venture partner Julia Arlt has prior experience supporting Fifth Wall.
• Brick & Mortar Ventures: US-based early-stage venture capital firm focused exclusively on ConTech and built-world startups. Directly comparable to Realyze in the construction technology sub-vertical of PropTech/ConTech investing.
• Taronga Ventures: Australia- and US-based real estate technology venture capital investor. Comparable as a specialized PropTech VC with strategic LP relationships with major real estate operators and corporates.
• Concrete VC: Amsterdam-based early-stage venture capital firm investing in European ConTech and real estate technology startups. Direct peer in geography and ConTech focus.
• A/O PropTech: Europe-based PropTech venture capital firm. Comparable as a regional specialist PropTech investor with corporate LP backing and a focus on sustainability-oriented real estate technology.
• Round Hill Ventures: European real estate technology investment arm of Round Hill Capital. Comparable as a real-estate-operator-backed PropTech investor; also named as an ATechX partner in Realyze's distribution network.

Broad incumbents

• BitStone Capital: Realyze Ventures' predecessor fund, co-founded by Manfred Heid and Kai Panitzki. Comparable as a European Real Estate and ConstructionTech VC; now operates alongside Realyze rather than directly competing.

Emerging players

• Extend Ventures: European early-stage PropTech venture capital investor. Comparable as an emerging specialist in the same niche; smaller fund size and earlier stage positioning relative to Realyze.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/realyze-ventures

Revenue estimate

Valuation estimate

Number of profiles

Profiles18 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments10 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Realyze Ventures