Stone22 B.v.

What Stone22 B.v. does

Stone22 B.V. is a privately held Dutch real estate development and property management firm headquartered in Rotterdam, specializing in science parks, campus locations, monumental building redevelopment, and unique creative-industry properties across the Netherlands. Founded in 2009 by partners Geert Haksteen, Paul Nijhout, and Paul Graven, the company operates as an integrated boutique developer and asset manager serving institutional investors, universities, research organizations, housing corporations, and end-user tenants. Its core services encompass delegated project development, adaptive reuse of historic buildings, integrated property management (commercial, technical, financial, and tenant services), and campus advisory/master-planning work. Notable technical specializations include low-vibration floors for nanotechnology research (Matrix VII), climate-stabilized laboratories, and circular construction methods demonstrated by BioPartner5 Leiden — the Netherlands' first circular laboratory building, constructed from 165,000 kg of reused steel and certified Paris Proof.

The company executes its work through three named partners supported by a small in-house team, supplemented by specialist architectural and engineering partners (Group A, Popma & Ter Steege, Nieman, IMd, Deerns). Revenue is generated through project-based professional services fees for development mandates and recurring managed-services fees for property management (e.g., Stadgenoot's Panama Paar and The Bell since 2014; De Amsterdamse Compagnie's 20,000 m2 GLA portfolio). Pricing is custom and not publicly disclosed. The firm's commercial model is anchored by a strategic partnership with the a.s.r. Dutch Science Park Fund (formed 2018), through which it develops science park buildings for sale to the fund, creating a recurring mandate pipeline. STONE22 operates a wholly-owned subsidiary, STONE22 Development B.V., for project-specific execution. Active projects as of 2024-2025 include Innovation Center VU (Zuidas, Amsterdam), the Sanquin Lewis Building, and the broader Health & Innovation District New West campus development for Sanquin Health Solutions.

Name

Stone22 B.v.

Legal name

Stone22 B.V.

Website

https://stone22.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Short description

Stone22 B.V. is a Rotterdam-based Dutch boutique real estate developer and property manager specializing in science park projects, campus developments, and monumental building redevelopment for institutional clients including universities, research institutes, and institutional investors.

Ownership category

akta.pro rank

Product category

Commercial Real Estate Development

NAICS

Commercial and Institutional Building Construction (23622), Nonresidential Building Construction (2362), Architectural Services (541310)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Non-Operating Establishments (9995)

akta.pro primary industry

Urban Planning & Master Planning (BPAHAKAD)

akta.pro secondary industries

Capital Projects, Renovation & Minor Construction (EDALALAF), Project Management & Owner’s Rep Services for School Capital Projects (EDAEABAN)

Keywords

• Science park development
• Research building development
• Monumental building redevelopment
• Commercial property management
• Campus development advisory

Headquarters

HQ city

Rotterdam

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Project Development Services: STONE22 develops buildings as delegated developer, managing projects from concept through construction and delivery.
2. Redevelopment Services: Specialized redevelopment of monumental and existing buildings for new uses.
3. Property Management: Integrated property management services including commercial, technical, financial, and tenant services.
4. Advisory Services: Consulting and advisory services for campus development, master planning, and real estate strategy.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

STONE22 develops, redevelops, and manages specialized buildings, focusing on science parks, campus locations, and unique business locations in the creative sector. The company acts as a delegated developer managing projects from concept through construction and delivery, while also providing integrated property management (commercial, technical, financial, and tenant services) for owned and third-party portfolios. Their work spans research laboratories, accelerator buildings, monumental building redevelopments, and healthcare/cultural facilities across the Netherlands.

Product overview

Stone22 B.v. is a Dutch real estate development and property management company operating as a single integrated service offering rather than a platform-plus-modules architecture. The company provides three core services: project development for science parks and campus locations (including research buildings, laboratories, and accelerator facilities), redevelopment of monumental buildings, and real estate management services. The company has developed a portfolio of named projects across the Netherlands including the Matrix buildings (Matrix VI, VII, ONE) at Amsterdam Science Park, BioPartner5 Leiden (the Netherlands' first circular laboratory building), NEXT Delft accelerator building, TNO Lab Delft, Innovation Center VU, and campus developments for Health & Innovation District Amsterdam. STONE22 also manages several commercial properties including Panama Paar, The Bell, and provides advisory services for High Tech Campus Eindhoven. Projects span science parks (Leiden Bio Science Park, Amsterdam Science Park, TU Delft Campus, Utrecht Science Park), monumental building redevelopment (British School of Amsterdam, Springhouse Amsterdam, HQ Nikon Europe), creative industry spaces (WOW Amsterdam, Botel), and healthcare facilities (Zorgboulevard Rotterdam, Sanquin Lewis building).

Differentiator

Problem solved

Functional benefit

Products and services

• Project Development for Science Parks Turnkey development and realization of research buildings, laboratories, accelerator buildings, and campus facilities on Dutch science parks including Amsterdam Science Park, Leiden Bio Science Park, TU Delft Campus, Utrecht Science Park, and High Tech Campus Eindhoven. STONE22 acts as delegated developer managing projects from concept through construction and delivery for institutional clients, universities, and research organizations.
• Redevelopment of Monumental Buildings Adaptive reuse and transformation of historic and monumental buildings into sustainable working, learning, and cultural environments. Notable projects include the British School of Amsterdam (former House of Detention, 14,000 m2 BVO), HQ Nikon Europe in Tripolis (4,500 m2 GFA), Springhouse Amsterdam, WOW Amsterdam, and The Bell. Services address the challenge of modernizing historic buildings while preserving their character and meeting contemporary standards.
• Real Estate Management Integrated property management services for commercial properties and portfolios, encompassing commercial management, technical management, financial management, and tenant services. Current managed assets include Panama Paar (two buildings on Panama Avenue, ~2,500 m2 each) and The Bell (stately monumental building on Sarphatistraat) on behalf of Stadgenoot housing corporation, and the 20,000 m2 GLA commercial portfolio of De Amsterdamse Compagnie.
• Campus Development Advisory

Quantifiable outcome

• 40% CO2 reduction achieved through circular construction (BioPartner5)
• +3 more outcomes

Named customers17 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• TU DelftcoreStrategic or Co-development Partner · 1 January 2018Strategic partnership for campus development at TU Delft Campus. STONE22 developed NEXT Delft accelerator building for scale-ups and TNO Lab Delft on behalf of the a.s.r. Dutch Science Park Fund. TU Delft and municipality worked together on increasing housing options for technology-driven companies.
• Sanquin Health Solutions BVcoreStrategic or Co-development PartnerSTONE22 serves as advisor, facilitator, development manager, and project manager for the Health & Innovation District New West (HID) campus development. SHS is the commercial arm of Sanquin Blood Supply Foundation, active in diagnostics, scientific research, and drug development.
• Matrix Innovation CentercoreStrategic or Co-development PartnerSTONE22 (partner Geert Haksteen) held board position from 2006-2019. STONE22 developed multiple Matrix buildings including Matrix VI and VII as delegated developer, and manages Matrix Innovation Center's real estate.
• BioPartner Center LeidencoreStrategic or Co-development PartnerIncubator organization of Leiden Bio Science Park offering flexible office and laboratory space. STONE22 developed BioPartner5 in close collaboration, delivering the first circular laboratory building in the Netherlands.
• De Amsterdamse CompagniecoreChannel Partner/ Reseller/ DistributorSTONE22 operates commercial, technical, and financial property management for De Amsterdamse Compagnie portfolio (20,000 m2 GLA including Panama Paar buildings).
• StadgenootcoreChannel Partner/ Reseller/ DistributorHousing corporation. STONE22 has assumed operating activities since 2014, responsible for integrated property management of The Bell and Panama Paar properties.
• Utrecht UniversityminorStrategic or Co-development PartnerAs landowner of Utrecht Science Park, the university participates in campus development projects including The Accelerator development.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Wereldhave: Dutch listed real estate company focused on commercial property in the Netherlands, with integrated development and asset management activities. Comparable as a Dutch institutional real estate operator, though more retail/office oriented rather than research-focused.
• AM (Amvest): Dutch developer and investor with development, redevelopment, and property management activities across the Netherlands. Operates in overlapping institutional and campus-adjacent real estate segments as STONE22.
• BPD (Bouwfonds Property Development): Dutch area and real estate developer (part of Rabobank) active in residential and nonresidential development, including master-planning roles on Dutch campuses and urban projects. Comparable as a Dutch delegated developer operating in adjacent building segments.
• EDGE Technologies: Dutch developer specializing in sustainable, technology-rich office buildings across Europe. Highly comparable to STONE22 on sustainability focus, BREEAM leadership, and Dutch institutional/campus-adjacent office development.
• Dura Vermeer: Dutch construction and real estate developer with divisions covering residential, nonresidential, and infrastructure development in the Netherlands. Comparable as a Dutch full-service developer active in similar nonresidential and institutional segments.
• Heijmans: Large Dutch construction and real estate developer active in nonresidential and infrastructure projects, including public-sector and institutional buildings in the Netherlands. Directly comparable to STONE22's delegated-developer and redevelopment work, though at much larger scale and broader scope.

Emerging players

• OVG Real Estate: Dutch developer focused on sustainable and healthy office buildings, including the Edge Olympic in Amsterdam. Closely comparable niche positioning in Dutch sustainable commercial development, though without STONE22's science-park focus.

Broad incumbents

• VolkerWessels: Large Dutch construction and real estate development group with broad Dutch and international operations, including nonresidential building development. Relevant comparable for scale and Dutch institutional contracting activity.
• Tishman Speyer: Global real estate developer with science, innovation, and life-sciences portfolio experience including university and research campuses. Comparable as a developer active in research/science-oriented real estate, though at global scale and broader scope.
• BAM Group: Major Dutch construction and engineering group executing nonresidential, institutional, and sustainable building projects across the Netherlands and Europe. Comparable as a general nonresidential contractor with sustainability credentials, though not science-park specialized.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/stone22

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Stone22 B.v.