Proof of the sum

What Proof of the sum does

Proof of the sum is a privately held architectural design studio headquartered in Amsterdam, Netherlands, founded in 2015 by Roy Pype. The firm specializes in designing physical environments intended to stimulate knowledge sharing and innovation among research-driven organizations, including universities, research campuses, science parks, life sciences companies, and government clients. Its design methodology is grounded in neuroscience-inspired concepts — specifically the idea that innovation emerges through unexpected connections, analogous to synaptic networking — and is validated through the firm's own published research on how spatial design contributes to collaboration.

The firm delivers integrated architectural, interior, and masterplanning services spanning concept design through construction oversight, with notable technical competencies in Cross Laminated Timber (CLT) construction, BREEAM-certified sustainable delivery, circular building transformation, and flexible multi-tenant laboratory environments. Its project portfolio includes landmark commissions such as the Plus Ultra III Wageningen (the first CLT laboratory building in the Netherlands, for Kadans Science Partner), the approximately 30,000 m2 Central Laboratory for Diagnostics and Research for UMCG Groningen, the 57,000 m2 Oak Centre Stein in Switzerland for GETEC, and Vaccinopolis (Europe's first Controlled Human Infection Model center for the University of Antwerp).

The business model is B2B professional services revenue generated through project-specific design fees, with client acquisition driven by design competitions, direct commissions, and long-term client relationships. The firm operates with approximately 15 multi-disciplinary team members and works in agile project configurations, typically partnering with specialist consultants (Exilab for lab building physics, SVR Architects for co-design, Studieburo De Klerck for structural engineering) to deliver technically complex research and life sciences projects. Geographic activity is concentrated in the Netherlands and Belgium with recent expansion into Switzerland and one Austrian competition entry, and the firm has earned three major design recognitions in 2025.

Name

Proof of the sum

Legal name

Proof of the sum

Website

https://proofofthesum.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Short description

Proof of the sum is an Amsterdam-based architecture studio specializing in designing knowledge-sharing environments — research campuses, science parks, laboratories, and workplaces — for universities, life sciences firms, and government clients in Western Europe.

Ownership category

akta.pro rank

Product category

Architectural Design Services

NAICS

Engineering Services (541330), Industrial Design Services (541420)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Design-Build / EPC General Contracting (IMAFAAAD)

Keywords

• Architectural design services
• Science campus design
• Research facility design
• Laboratory building architecture
• Masterplanning services

Headquarters

HQ city

Amsterdam

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural and Interior Design Services: Proof of the sum provides architectural design, interior design, and master planning services on a project basis to knowledge-driven organizations. Revenue is generated through professional service fees for design commissions covering the full project lifecycle from concept through construction oversight.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Proof of the sum is an architectural design firm that delivers integrated architectural design, interior architecture, masterplanning, and workplace design services for knowledge-driven organizations. The firm specializes in creating environments for research centers, universities, science parks, life sciences facilities, and government buildings that foster knowledge sharing and collaboration through a neuroscience-inspired design methodology. Services span the full project lifecycle from development vision and concept design through design development, tendering, construction oversight, and fit-out delivery.

Product overview

Proof of the sum is an architectural firm offering integrated design services for knowledge-driven organizations. The company operates across four core service areas: Architectural Design (including new construction and renovation for research centers, universities, and campuses), Interior Architecture (designing shared spaces and workplaces that foster collaboration), Masterplanning and Urban Design (strategic development visions for science parks and innovation districts), and Research Services (investigating how spatial design impacts knowledge sharing). The portfolio includes landmark projects such as Plus Ultra III Wageningen (the first CLT laboratory building in the Netherlands), CLDR Groningen (Central Laboratory for Diagnostics and Research), and various campus developments across Europe. The firm also provides project implementation support through design development, tendering, and construction supervision.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services
• Interior Architecture
• Masterplanning and Urban Design
• Campus Design
• Workplace Design
• Research and Consulting

Quantifiable outcome

• Designed the first Cross Laminated Timber laboratory building in the Netherlands (Plus Ultra III) with CO2-negative construction
• +3 more outcomes

Named customers15 records

Segments4 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

14 partnerships are on record, tiered core.

• Kadans Science PartnercoreStrategic or Co-development PartnerKadans Science Partner is a recurring client and strategic partner for Proof of the sum across multiple multi-tenant science campus projects. Proof has designed several buildings in Kadans's portfolio including Plus Ultra III Wageningen (8,500 m2, BREEAM-Excellent, CLT construction) and Plus Ultra Gent (20,700 m2, BREEAM-Excellent, in collaboration with SVR Architects) at Tech Lane Ghent Science Park. The partnership involves ongoing design commissions for Kadans's expanding science park portfolio across the Netherlands and Belgium.
• PMVcoreStrategic or Co-development PartnerPMV (a Flemish investment company) co-invests alongside Kadans Science Partner in the Plus Ultra Gent development at Tech Lane Ghent Science Park. Proof of the sum serves as architectural designer for this project.
• POM LimburgcoreStrategic or Co-development PartnerPOM Limburg (Provincial Development Agency Limburg) is the client for the Poortgebouw Health Campus Limburg DC Diepenbeek project — a 17,150 m2 central landmark building at the health campus in Diepenbeek, Belgium. Proof of the sum serves as interior architect in collaboration with Studio Muoto and TAB Architects.
• Schipper BoschcoreStrategic or Co-development PartnerSchipper Bosch is the client and developer for the Food Innovation Park Ede project — a development vision for transforming the former NIZO campus into a 5-hectare food innovation ecosystem (21,000 m2 GFA) in Ede, Netherlands. Proof of the sum developed the spatial vision and masterplan in collaboration with Schipper Bosch, NIZO, Provincie Gelderland, OostNL, and other partners.
• GETECcoreStrategic or Co-development PartnerGETEC is the client for Oak Centre Stein, Switzerland — a project to reimagine and extend an existing 53,000 m2 structure into a 57,000 m2 integrated life sciences ecosystem on the GETEC campus. The project includes laboratories, GMP production, offices, and shared amenities with sustainability features including photovoltaic panels and green roofs.
• University of Antwerp (UAntwerp)coreStrategic or Co-development PartnerUniversity of Antwerp commissioned Proof of the sum to design Vaccinopolis — the first European CHIM (Controlled Human Infection Model) center, delivered on a compressed 1.5-year timeline (versus typical 4-5 years). The project was commissioned alongside Université Libre de Bruxelles and delivered in partnership with the IMM/Unity consortium.
• Eindhoven AirportcoreStrategic or Co-development PartnerEindhoven Airport commissioned Proof of the sum for the P3 parking facility redesign — a future-proof, energy-neutral parking building with green facades and CLT structure, part of the airport's ambition to become energy neutral by 2030.
• SVR ArchitectscoreImplementation/ SI/ Consulting PartnerSVR Architects is a recurring collaboration partner for Proof of the sum on multiple major projects including Plus Ultra Gent (with SVR as lead architect), Leuven Bioscience Centre, and Bio-Incubator V Leuven. The firms form integrated design teams for these science campus commissions.
• Studio Muoto and TAB ArchitectscoreImplementation/ SI/ Consulting PartnerStudio Muoto and TAB Architects designed the Poortgebouw tower building at Health Campus Limburg DC, with Proof of the sum commissioned as interior architect for all shared spaces including reception, meeting hubs, workspaces, and social zones. Giorgia Spadaro from Proof worked closely with the architectural team.
• ExilabcoreImplementation/ SI/ Consulting PartnerExilab is a recurring specialist consultant partner for Proof of the sum across numerous projects including Plus Ultra III Wageningen, Plus Ultra Gent, Leuven Bioscience Centre, Bio-Incubator IV Leuven, and Vaccinopolis Antwerp. Exilab brings expertise in field techniques and building physics for specialized laboratory environments.
• Karres en BrandscoreImplementation/ SI/ Consulting PartnerKarres en Brands collaborates with Proof of the sum on multiple urban design and masterplan projects including E|Sports Tech Campus Purmerend De Koog, Utrecht Science Park Bilthoven development vision, Energy & Health Campus Petten, and Power to X Campus Tilburg. The firms work in multidisciplinary teams on campus transformation and development visions.
• FABRICationscoreImplementation/ SI/ Consulting PartnerFABRICations collaborated with Proof of the sum and REBEL on the Power to X Campus Tilburg development vision. FABRICations contributed spatial scenario exploration through drawings and models in workshops with Bosch and Municipality of Tilburg.
• Studieburo De KlerckcoreImplementation/ SI/ Consulting PartnerStudieburo De Klerck serves as structural engineer in partnership with Proof of the sum on multiple projects including Leuven Bioscience Centre and Bio-Incubator V Leuven, contributing engineering expertise for complex multi-tenant research buildings.
• NuduscoreImplementation/ SI/ Consulting PartnerNudus collaborated with Proof of the sum on the Central Laboratory for Diagnostics and Research (CLDR) project for UMCG in Groningen, as part of a design consortium delivering the approximately 30,000 m2 facility.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• cepezed: cepezed is a Netherlands-based architecture studio known for high-tech, sustainable laboratory, workplace, and educational buildings. Direct overlap with Proof of the sum on flexible lab and workplace design in the Benelux market.
• Mecanoo: Mecanoo is a Dutch architecture firm with a strong portfolio in research, education, and library buildings, including science and knowledge-sharing facilities. It is one of the closest direct competitors to Proof of the sum in the Benelux research-campus niche.
• Benthem Crouwel Architects: Benthem Crouwel is a Dutch firm with deep experience in research, science, healthcare, and public buildings. Comparable to Proof of the sum in scale, Dutch origin, and focus on technically complex institutional commissions.
• de Architekten Cie. de Architekten Cie. is a Dutch firm active in housing, research, and mixed-use developments with a long track record in science and education. Comparable to Proof in Dutch institutional client base and project scale.
• EGM architecten: EGM is a Dutch firm with a strong portfolio in healthcare, research, and workplace environments. Comparable mid-sized Dutch competitor to Proof of the sum in life sciences and institutional building design.

Broad incumbents

• UNStudio: UNStudio is a larger Amsterdam-based architecture firm working across commercial, cultural, and knowledge-building typologies. Overlaps with Proof on workplace, research, and high-end institutional projects but at significantly greater scale and breadth.
• Perkins&Will: Perkins&Will is a global architecture firm with one of the world's strongest science and research-building practices. Comparable in target typology (research campuses, life sciences labs) but at vastly greater scale and geographic reach.
• MVRDV: MVRDV is a major Rotterdam-based architecture firm with a wide international portfolio including research, education, and mixed-use buildings. Competes with Proof for high-profile Dutch institutional commissions, with a much larger bench and global brand.
• HDR Architecture: HDR has a leading global practice in research, healthcare, and laboratory architecture. Overlaps with Proof of the sum's life sciences and healthcare facility work, particularly when competing for European university medical center and research campus commissions.

Emerging players

• Studio RAP: Studio RAP is a smaller Dutch practice pioneering computational design and timber (CLT) architecture. Direct overlap with Proof of the sum's CLT and sustainability-led approach, but at smaller scale and with a more experimental identity.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/proof-of-the-sum
• Instagraminstagram.com/proofofthesum

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

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 Proof of the sum