What Prommenz does

Prommenz is a Dutch integrated advisory and engineering consultancy headquartered in Schagen, North Holland, providing multidisciplinary services for spatial, civil, and environmental projects. The firm operates across seven service pillars — Infra, Ruimte & Ontwikkeling, Survey, Milieu, Ecologie, Smit Groenadvies, and Buro Mien Ruys — covering the full lifecycle of spatial developments from vision to execution. Technical capabilities include 3D scanning (NavVis), GIS-based surveying, NEN-standardized infrastructure inspections (NEN 2767, NEN 5725, NEN 5740), AERIUS nitrogen deposition modeling for Natura 2000 areas, BOPA/GoFlo permit applications under the Omgevingswet, and proprietary measurement tools such as the Aardvark soil permeability device and the Exotenvanger invasive crayfish trap. Service lines span infrastructure engineering, soil and environmental research, ecological surveys and species management planning, spatial development and zoning, surveying, landscape architecture, and green advisory.

The firm generates revenue through project-based professional services engagements with Dutch municipalities, waterboards, housing corporations, project developers, and construction companies. Pricing is quote-based on project scope, with no public rate cards or subscription tiers. Client relationships are managed through direct B2B sales and integrated bouwteam project delivery with construction partners such as Max Bögl, BAM, Van Geemen GWW, and Topgrass. Notable clients include Gemeente Schagen, Gemeente Den Helder, Gemeente Medemblik, Gemeente Waterland, Gemeente Amsterdam, Hoogheemraadschap De Stichtse Rijnlanden, Het Grootslag, Ymere, Woonstichting Lieven de Key, C. Nelis Bouw & Ontwikkeling, and Flevo-Landschap.

Prommenz has grown from a 2011 Schagen-based startup into a 100+ employee group through three acquisitions — Smit Groenadvies (2021), Buro Mien Ruys (2023), Bouwkundig Adviesbureau SAS and Hollands Kroon Architectuur (2025) — and a July 2026 corporate rebranding that unified all subsidiaries under a single Prommenz Groep brand. The firm remains privately held under owner and director Foppe Timmer, with Cor Klaassen serving as general director, and operates with no external institutional or venture funding. Geographic concentration remains in North Holland, with emerging project presence in the Amsterdam metro and select national engagements.

Name

Prommenz

Legal name

Prommenz B.V.

Website

https://prommenz.nl

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

101–250 employees

Short description

Prommenz is a Dutch integrated advisory and engineering consultancy delivering multidisciplinary spatial, civil, environmental, and ecological services — including 3D surveying, NEN inspections, AERIUS modeling, and landscape architecture — to municipalities, housing corporations, developers, and contractors across the Netherlands.

Ownership category

akta.pro rank

Product category

Engineering Consultancy Services

NAICS

Landscape Architectural Services (541320), Surveying and Mapping (except Geophysical) Services (541370), Architectural Services (541310), Architectural Services (54131)

akta.pro primary industry

Landscape Architecture & Site Design (BPAHAKAC)

akta.pro secondary industries

Regional & Land Use Planning (BPAHAKAE), Geotechnical & Subsurface Engineering Consulting (BPAHAIAB), Urban & Regional Planning (Land Use, Zoning, Master Planning) (BPAIANAD), Infrastructure Planning, Capital Programs & Project Delivery Offices (PMOs) (BPAIALAJ), Commercial Landscape Design & Installation (HSAIABAJ), Landscape Renovation & Re-Design (Yard Makeovers) (HSAIABAC)

Keywords

• Spatial planning services
• Civil engineering consultancy
• Environmental advisory services
• Infrastructure design services
• Ecological survey services

Headquarters

HQ city

Schagen

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. Engineering and Advisory Consulting Services: Project-based consulting fees for spatial planning, infrastructure design, environmental assessments, ecological surveys, and landscape architecture services. Revenue is generated through direct client engagements with municipalities, developers, housing corporations, and construction companies. Services are delivered across seven disciplines under one roof.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels8 records

Core offering

Prommenz is an all-round advisory and engineering consultancy delivering total solutions for spatial projects across seven service pillars: Infra, Ruimte & Ontwikkeling, Survey, Milieu, Ecologie, Smit Groenadvies, and Buro Mien Ruys. The firm serves Dutch municipalities, project developers, housing corporations, and construction companies with services spanning spatial planning, civil engineering, infrastructure design, environmental and soil research, ecological surveys, 3D scanning/surveying, permit application support, and landscape architecture. Operates as a one-stop-shop from spatial vision through execution under the unified Prommenz Groep brand.

Product overview

Prommenz is an integrated advisory and engineering firm offering spatial planning services across seven departments: Infra (infrastructure engineering), Ruimte & Ontwikkeling (spatial development), Milieu (environmental/soil research), Survey (surveying/3D scanning), Ecologie (ecological research), Smit Groenadvies (green advisory, acquired 2021), and Buro Mien Ruys (landscape architecture, acquired 2023). The company provides end-to-end solutions for spatial projects, from vision to execution. Core services include soil and environmental research (Milieu), ecological surveys and species management, infrastructure design and inspection, 3D surveying and scanning technology, spatial planning permits (BOPA/GoFlo), and landscape architecture. Recent developments include the full rebranding (2025-2026) consolidating all subsidiaries under the unified Prommenz brand.

Differentiator

Problem solved

Functional benefit

Products and services

• Infra Infrastructure engineering services including road design, bridge construction, civil works, drainage systems, public space design, asset management, tendering, and execution support for municipalities and contractors.
• Ruimte & Ontwikkeling Spatial development and planning services including zoning plans, environmental permits, BOPA applications, GoFlo documentation, participation processes, and urban planning for municipalities and developers.
• Milieu Environmental services including exploratory soil research (NEN 5740), water bottom research, asbestos investigation, groundwater research, soil remediation guidance, and nitrogen deposition calculations (AERIUS) for construction projects.
• Survey Surveying and measurement services including 3D scanning (NavVis), model measuring, monitoring, stakeout, as-built documentation, 3D modeling, and zero measurements for construction projects.
• Ecologie Ecological research services including species surveys (bats, swallows, house sparrows, natterjack toads), protected species permits, ecological field work, construction supervision, and biodiversity assessments.
• Smit Groenadvies Green advisory services including landscape architecture, garden design, sports field design, nature development, tree management, climate-adaptive solutions, and water buffer systems for municipalities, housing corporations, and developers.
• Buro Mien Ruys Landscape architecture services specializing in garden and landscape design with focus on green in public spaces and the influence of green on well-being and health.

Quantifiable outcome

• 3,000 homes targeted for sustainable renovation by 2030 through species management planning
• +3 more outcomes

Named customers14 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

15 partnerships are on record, tiered minor and core.

• Bouwkundig Adviesbureau SASminorStrategic or Co-development Partner · 1 January 2025Acquired in 2025 as part of Prommenz's expansion strategy, adding structural engineering advisory services to the group's offerings.
• Hollands Kroon ArchitectuurminorStrategic or Co-development Partner · 1 January 2025Acquired in 2025 to expand architectural design capabilities within the Prommenz group.
• Buro Mien RuyscoreStrategic or Co-development Partner · 6 January 2023Acquisition/partnership formalized January 2023. Buro Mien Ruys, a landscape architecture firm with heritage dating to the 1950s and Mien Ruys' philosophy on green in public spaces, joined Prommenz to strengthen the design team while preserving quality and expertise.
• Van Geemen GWWcoreImplementation/ SI/ Consulting Partner · 1 January 2022Strategic construction partner in bouwteam arrangement for Marken infrastructure project. Won joint proposal for dam wall and quay wall replacement project in collaboration with Prommenz's multidisciplinary team.
• Smit GroenadviescoreStrategic or Co-development Partner · 1 January 2021Acquisition/partnership formalized January 2021. Smit Groenadvies brought expertise in garden & landscape design, sports fields, green advisory, nature development and ecology with nearly 20 employees. The partnership expanded Prommenz's service offerings and employee count significantly.
• Max BöglcoreImplementation/ SI/ Consulting PartnerConstruction partner for Amsterdam Central Station redevelopment (De Entree). Prommenz provided survey services in partnership on this major infrastructure project.
• BAMcoreImplementation/ SI/ Consulting PartnerConstruction partner for Amsterdam Central Station redevelopment project.
• DruktemakerminorGTM or Marketing PartnerCreative and filming agency that produced the company's April Fools' Day video campaign (tunnel to Texel, Formula 1 rotondes).
• Omgevingsdienst Noord-Holland NoordminorImplementation/ SI/ Consulting PartnerRegional environmental authority that processes environmental permit applications submitted by Prommenz on behalf of clients.
• Helderse UitdagingminorGTM or Marketing PartnerLocal challenge organization connecting businesses with community projects. Prommenz donated boat trailer to Solar Team of Lyceum aan Zee through this initiative.
• Topgrass BVcoreImplementation/ SI/ Consulting PartnerConstruction partner for climate-resilient hockey field with water buffer system in Schagen. Part of 'Sportcarrousel' climate-adaptive sports park project.
• HSV WilnisminorStrategic or Co-development PartnerWater body owner that provided test location for Smit Groenadvies's innovative invasive crayfish trap research.
• Oosterhof HolmanminorImplementation/ SI/ Consulting PartnerConstruction contractor for Boerenverdrietbrug restoration project in Den Helder, working under Prommenz's direction and supervision.
• Zeestad CV/BVcoreStrategic or Co-development PartnerUrban development company for Den Helder. Prommenz provides civil engineering advisory for various projects in the Stadshart and Willemsoord area.
• Helder Vastgoed BVminorStrategic or Co-development PartnerReal estate company in Den Helder collaborating on urban development and renovation projects.

Scale indicators3 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• Sweco: Sweco is a European engineering consultancy with substantial Dutch operations spanning infrastructure, environment, and urban development — a broad incumbent offering overlapping capabilities across Prommenz's service portfolio.
• Witteveen+Bos: Witteveen+Bos is a Dutch engineering and consultancy firm focused on water, infrastructure, and environment — a broad incumbent whose water board and infrastructure work directly overlaps with Prommenz's engagements with entities like Hoogheemraadschap De Stichtse Rijnlanden.
• Arcadis: Arcadis is a global design, engineering, and consultancy firm with strong Dutch presence covering mobility, environment, and spatial planning — a broad incumbent competing with Prommenz for municipal and infrastructure mandates.
• Royal HaskoningDHV: Royal HaskoningDHV is a large international engineering consultancy with deep Dutch roots covering infrastructure, water, environment, and planning — a broad incumbent that overlaps with all of Prommenz's seven pillars but operates at vastly greater scale.

Direct peers

• Tauw: Tauw is a Dutch engineering and environmental consultancy providing soil research, environmental permitting, ecology, and infrastructure advisory — a closely overlapping service mix with Prommenz's Milieu, Infra, and Ecologie pillars, serving similar municipal and developer clients.
• OKRA Landschapsarchitecten: OKRA is a Dutch landscape architecture firm specialising in public space, urban greening, and climate-adaptive design — directly comparable to Prommenz's Buro Mien Ruys heritage practice and Smit Groenadvies landscape work.
• Antea Group: Antea Group is a Dutch multi-disciplinary engineering and consultancy firm offering environment, infrastructure, spatial planning, and water services — directly comparable to Prommenz's integrated advisory model with similar client base across municipalities and developers.
• BK Ingenieurs: BK ingenieurs is a Dutch multi-disciplinary engineering firm offering infrastructure, environment, and spatial advisory — a smaller-scale direct peer serving comparable municipal and developer clients in the Netherlands.
• Movares: Movares is a Dutch engineering consultancy specialising in infrastructure, spatial development, and environmental advisory for rail, road, and public space projects — comparable to Prommenz's Infra and Ruimte & Ontwikkeling capabilities.
• Copijn Groene Ingenieurs: Copijn is a Dutch green engineering consultancy combining landscape architecture, ecology, and tree management — closely comparable to Prommenz's Smit Groenadvies and Ecologie service pillars for public green space and nature development.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC_BanfecP7iK2gmr5PXcvXA
• Facebookfacebook.com/Prommenz
• LinkedInlinkedin.com/company/prommenz
• Instagraminstagram.com/prommenz
• Xx.com/prommenz

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries13 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 Prommenz