What Groosman does

GROOSMAN B.V. is a Dutch multidisciplinary architecture and engineering firm headquartered in Rotterdam, founded in 1948 by Ernest Groosman. The firm serves residential developers, housing corporations, municipalities, and mixed-use developers across the Netherlands, delivering integrated architecture, structural engineering, and construction engineering services for housing projects that range from compact urban infill to large-scale area developments of 600 to 800+ homes. Its client base includes established Dutch developers and partners such as BPD, Amvest, Rijnboutt, Aroundtown, Zondag Ontwikkeling, ABB Bouwgroep, and Hoogvliet Beheer, along with housing corporation Havensteder and municipalities including Gemeente Rotterdam, Gemeente Haarlem, and Gemeente Alphen aan den Rijn. The firm operates as a private limited partnership with six partners and is structured for professional service delivery.

The firm operates four core service lines—Architectuur (architectural design), Engineering (integrated building physics, fire safety, and installations using BIM), Constructie (structural engineering), and Visuals (visualization)—delivered under one roof by a team of approximately 55 architects, structural engineers, construction modelers, and administrative staff. Its workflow is anchored by an integrated BIM-driven design process using Revit, Solibri, BIM Collab, and Dynamo, combined with parametric design and a proprietary AI and data tool called GroosStudio developed internally to support data-driven design decision-making. The firm emphasizes maakbaar (buildable), betaalbaar (affordable), and socially relevant design, with documented capability in circular construction evidenced by the Kop West project's Most Circular Project Award and broader sustainability positioning.

GROOSMAN operates as a private professional services firm generating revenue through project-based professional service fees. Pricing is not publicly disclosed; commissions are negotiated individually based on scope, complexity, and client. The firm acquires work through competitive tenders, public procurement (e.g., the openbare aanbesteding for P+R Meijersplein), and direct commissions from repeat enterprise and government clients. Its go-to-market is sales-led, leveraging 78 years of accumulated reputation and an established network with Dutch municipalities, housing associations, and private developers. Revenue figures are not publicly disclosed.

Name

Groosman

Legal name

GROOSMAN B.V.

Website

https://groosman.com

Company type

Private

Founded year

1948

Operating status

Operating

Headcount range

11–50 employees

Short description

GROOSMAN B.V. is a Dutch multidisciplinary architecture and engineering firm founded in 1948, headquartered in Rotterdam. It serves Dutch residential developers, housing corporations, and municipalities by delivering integrated architecture, structural engineering, and construction services for housing and area development projects.

Ownership category

akta.pro rank

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

Revenue model

1. Architecture and Engineering Services: GROOSMAN generates revenue through providing integrated architectural design, structural engineering, and construction engineering services for building projects. Revenue is earned through professional service fees on project commissions, which can range from early-stage concept development through to full execution and delivery. The firm works on residential, mixed-use, and area development projects for developers, housing corporations, and municipalities.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels8 records

Core offering

Groosman is an integrated architecture and engineering firm providing architectural design, structural/construction engineering, integrated engineering, and architectural visualization services for building projects. The firm delivers maakbaar (buildable), betaalbaar (affordable), and socially relevant buildings using BIM-driven workflows and its proprietary AI tool GroosStudio. Services span from early-stage concept development through to full execution and delivery, covering residential, mixed-use, and area development projects across the Netherlands.

Product overview

Groosman is a multidisciplinary architecture and engineering firm founded in 1948, offering integrated services under one roof combining Architecture, Engineering, and Construction. The firm operates with approximately 55 employees including architects, structural engineers, and construction professionals. Groosman focuses on societal relevance, designing buildings that are practical, buildable, affordable, and sustainable. Their service offering encompasses architectural design (Architectuur), integrated engineering with BIM capabilities (Engineering), structural/construction engineering (Constructie), and architectural visualization (Visuals). The firm emphasizes co-creation, flexibility, and integral collaboration from initial sketch to final delivery, with a focus on housing, area development, facilities, and multifunctional projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectuur (Architecture) Architectural design services focused on societal relevance, addressing housing crises, climate change, and urban development. The firm creates buildings that are practical, buildable, and contribute to community well-being.
• Engineering Integrated engineering services combining construction, building physics, fire safety, and installations. The firm uses BIM (Building Information Modeling) for virtual realization of buildings and early risk identification.
• Constructie (Structural Engineering) Structural engineering services designing load-bearing structures for buildings. The firm focuses on sustainability, circularity, and creating flexible, future-proof constructions.
• Visuals (Architectural Visualization) Visualization services translating architectural visions into compelling imagery. Integrally connected with design and strategy work, creating coherent conceptual anchoring in every developed image.

Quantifiable outcome

• GroosStudio tool enables architects to take on a connecting role in design decisions using data-driven insights
• +1 more outcomes

Named customers9 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

20 partnerships are on record, tiered core and minor.

• Zeinstra Veerbeek ArchitectencoreStrategic or Co-development PartnerJointly responsible for the architectural design of a portion of the De Noordoevers area development (~800 homes) in H-I-Ambacht and Zwijndrecht, alongside GROOSMAN's structural engineering contribution.
• ABB BouwgroepcoreStrategic or Co-development PartnerDevelopment and construction partner for De Noordoevers, giving shape to a new residential area on the banks of the Noord river in collaboration with Zeinstra Veerbeek Architecten and GROOSMAN.
• RijnbouttcoreStrategic or Co-development PartnerArchitectural partner on the Rootz development in Haarlem (Blossom, Leaf, Breeze — 600+ homes) and on Lincolnpark in Hoofddorp. GROOSMAN collaborates on translating the architectural design into buildable engineering.
• AmvestcoreStrategic or Co-development PartnerDeveloper for the Rootz residential development in Haarlem, transforming the former Belcanto building area into a car-free urban neighborhood with over 600 homes.
• AroundtowncoreStrategic or Co-development PartnerProperty owner and development partner for the Coolse Poort transformation in Rotterdam, with GROOSMAN responsible for the architectural redesign.
• BPD (Bouwfonds Property Development)coreStrategic or Co-development PartnerDeveloper for De Caai in Eindhoven, where GROOSMAN has been providing structural engineering for all five towers since 2020, with a flexible structural system for approximately 550-750 homes.
• KAAN ArchitectenminorStrategic or Co-development PartnerOne of four architectural firms contributing to the distinctive architectural shells of the five towers in De Caai, Eindhoven, alongside Mei architects and planners, LEVS architecten, and Studioninedots.
• Mei architects and plannersminorStrategic or Co-development PartnerOne of four architectural firms contributing to the distinctive architectural shells of the five towers in De Caai, Eindhoven.
• LEVS architectenminorStrategic or Co-development PartnerOne of four architectural firms contributing to the distinctive architectural shells of the five towers in De Caai, Eindhoven.
• StudioninedotsminorStrategic or Co-development PartnerOne of four architectural firms contributing to the distinctive architectural shells of the five towers in De Caai, Eindhoven.
• Zondag OntwikkelingcoreStrategic or Co-development PartnerDeveloper that selected GROOSMAN for multiple plots in the Wilderszijde area development in Bergschenhoek (GR1 and GR5), approximately 174 homes.
• MTD landschapsarchitectenminorStrategic or Co-development PartnerLandscape architecture partner for the De Noordoevers development, responsible for the overall landscape design.
• Van WijnenminorStrategic or Co-development PartnerConstruction partner for the Coolse Poort transformation project in Rotterdam, alongside Aroundtown, Roldecaste, and DEV Real Estate.
• Gemeente Alphen aan den RijnminorStrategic or Co-development PartnerMunicipality that, together with the Economic Development Board Alphen, organized the Circulair Bouwen learning trajectory where GROOSMAN's Kop West project won the most circular project award.
• Blink en LingottominorStrategic or Co-development PartnerPartners in the Kop West circular development project that won the most circular project award in Alphen aan den Rijn.
• Vorm Holding and TrebbecoreStrategic or Co-development PartnerDevelopment and construction partners for MARK in Cascadepark, Almere, where GROOSMAN delivered both architecture and engineering for two 30-meter residential towers.
• LOL A Landscape ArchitectsminorStrategic or Co-development PartnerLandscape architecture partner for MARK in Cascadepark, Almere.
• HavenstederminorStrategic or Co-development PartnerHousing corporation for whom GROOSMAN designed 34 sustainable social rental homes at Schans and 2e Schansstraat in Delfshaven, Rotterdam.
• BNA (Bond van Architecten)minorStrategic or Co-development PartnerGROOSMAN associate partner Muamer Tabakovic represented BNA at VTW Bouwdag 2026, delivering a workshop on AI and data use in the design process.
• PLAIA-groepminorStrategic or Co-development PartnerProfessional network group within which GROOSMAN partner Lars Rutten is active, contributing to the firm's involvement in large-scale area developments.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• MVRDV: Rotterdam-headquartered architecture and urban design practice known for data-driven, parametric design. Groosman similarly emphasizes BIM/parametric workflows and is based in Rotterdam, making MVRDV a strong direct competitor for Dutch commissions.
• Studioninedots: Amsterdam-based architecture and research firm with strong housing and mixed-use portfolios. Co-collaborator on De Caai with Groosman and a direct competitor in Dutch residential and urban redevelopment.
• KAAN Architecten: Rotterdam-based architecture firm active in residential, cultural, and public projects. Already a co-collaborator with Groosman on De Caai (Eindhoven), KAAN directly competes for the same Dutch developer and housing corporation clients.
• ZUS (Zones Urbaines Sensibles): Rotterdam-based practice specializing in architecture, urbanism, and area development with strong public-sector engagement. Direct overlap with Groosman's residential and municipality-focused Dutch portfolio.
• Mecanoo: Dutch architecture firm headquartered in Nijmegen with a similar multidisciplinary practice covering architecture, urban planning, and landscape. Comparable to Groosman in offering integrated design services for residential and public projects in the Netherlands.
• LEVS architecten: Amsterdam-based architecture practice known for social housing and urban renewal. Comparable to Groosman in serving housing corporations and municipalities with buildable, socially relevant residential designs.
• Rijnboutt: Rotterdam-headquartered architecture firm and existing partner of Groosman on Rootz and Lincolnpark. Directly competes for the same developer-driven residential and area development commissions.
• KCAP: Dutch architecture and urban planning firm with a strong track record in area development, housing, and mixed-use projects. Overlaps with Groosman on Dutch residential and urban redevelopment dossiers.
• Mei architects and planners: Rotterdam-based architecture firm focused on housing, area development, and public buildings. Co-architect on De Caai alongside Groosman and a direct competitor for Dutch residential commissions.
• de Architekten Cie. Amsterdam-based architecture firm with strengths in residential and mixed-use urban projects. Comparable to Groosman in serving Dutch developers and housing corporations with mid-to-large scale commissions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/groosmannl
• Instagraminstagram.com/groosman_nl
• Xx.com/groosmannl
• Facebookfacebook.com/GroosmanNL

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Groosman