Strooming

What Strooming does

Strooming is an independent Dutch consultancy specializing in indoor environment (binnenmilieu) and occupational hygiene research, founded in 1986 as a family business now in its third generation. The company conducts calibrated field measurements across eight core service lines: lighting research (NEN-EN 12464-1), sound nuisance investigations in residential buildings, indoor air quality research (VOCs, formaldehyde, PM, CO, microbiological factors), odor research, moisture and mold investigations, draft and thermal comfort assessments, Legionella management plans, and hazardous-substance exposure assessments (NEN-EN 689). Measurement work uses calibrated instruments (luxmeters, sound level meters, thermographic cameras, moisture meters, gas detection devices, smoke test equipment) supplemented by accredited external laboratory analyses for air, mold/yeast cultures, and formaldehyde samples. The interpretive methodology—combining measurement data with building characteristics, usage patterns, and applicable regulations to identify root causes rather than simply logging readings—is the core differentiator from generalist inspection firms.

Strooming operates a hybrid go-to-market. For business clients (housing corporations, government, educational institutions, industrial firms, installers, legal/insurance parties, retail), the company runs a direct quote-based enterprise sales model delivering formal technical reports and expert-witness testimony; this is the primary revenue stream. For private consumers in the Randstad region, a self-serve webshop offers five fixed-price investigation packages ranging from €297 (general indoor environment, odor, draft, moisture/mold) to €697 (odor transfer investigation requiring neighbor cooperation). All residential prices include VAT, with invoicing due within 14 days and no recurring component. Distribution is direct-only, with no intermediaries; clients reach the company via website quote requests, phone, and an extensive blog/YouTube content library. Leadership comprises Sam de Ligt (Algemeen directeur, since 2007 takeover) and Michel Melis (Operationeel directeur, since 2020), with a deliberately compact team structure. Strategic partnerships with Longfonds, MVO Nederland, ISIAQ, and Gezond Binnen provide sectoral credibility and referral pathways rather than commercial distribution.

Name

Strooming

Legal name

Strooming

Website

https://strooming.nl

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

11–50 employees

Short description

Strooming is an independent Dutch consultancy founded in 1986 that specializes in indoor environment and occupational hygiene research. It serves business clients across the Netherlands via project-based consulting and private consumers through a fixed-price webshop.

Ownership category

akta.pro rank

Product category

Indoor Environment & Occupational Hygiene Consulting

akta.pro primary industry

Laboratory & Cleanroom Cleaning (IMAIADAD)

akta.pro secondary industry

Custodial Supplies, Inventory & Equipment Management (EDALALAJ)

Keywords

• Indoor environment research
• Occupational hygiene consulting
• Building physics investigations
• Air quality measurement
• Legionella management plans

Headquarters

HQ city

Zwijndrecht

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Fixed-price residential investigation services: Strooming offers fixed-price investigation packages for private consumers (particulieren) through a webshop. Services include Binnenmilieu onderzoek at €297, Geuronderzoek at €297, Geuroverdrachtsonderzoek at €697, Tochtonderzoek at €297, and Vocht- en schimmelonderzoek at €297. These are one-time service fees with no recurring component. The company explicitly states that research results and any advice reports are only shared with the client and not with third parties.
2. Custom project-based consulting for business clients: Strooming serves business clients (zakelijke opdrachtgevers) through custom project-based engagements. Clients submit quote requests and receive tailored proposals. Services span building physics research, occupational hygiene, Legionella management plans, and expert witness investigations. Pricing is determined per project based on scope, complexity, and required measurements. This is the primary revenue stream.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Strooming is an independent Dutch consultancy conducting indoor environment and occupational hygiene research. The company performs calibrated on-site measurements (lighting, sound, air quality, odor, moisture/mold, draft, Legionella, hazardous substances) and translates findings into actionable technical reports and recommendations. It serves business clients (housing corporations, government, education, industry, legal/insurance) via custom project-based consulting, and private consumers via fixed-price webshop investigation packages.

Product overview

Strooming is an independent research and consulting firm specializing in indoor environment and occupational hygiene. Founded in 1986, the company offers a portfolio of measurement and analysis services for both businesses (zakelijk) and private individuals (particulieren). The core services include light measurement, sound measurement, air quality research, odor research, moisture and mold research, draft research, Legionella management plans, and hazardous substances exposure research. For private consumers, Strooming offers standardized packages including Binnenmilieu Onderzoek (€297), Geuronderzoek (€297), Geuroverdrachtsonderzoek (€697), Tochtonderzoek (€297), and Vocht- en schimmelonderzoek (€297). The company operates as a family business with a compact team of experienced advisors, focusing on translating measurements into practical and sustainable solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Lichtmeting (Light Measurement) Independent lighting research in workplaces (offices, production, warehouses, education, healthcare) assessing illumination level, distribution, glare, reflections and daylight entry against NEN-EN 12464-1 standards. Delivered for business clients with formal technical reports.
• Geluidsmeting (Sound Measurement) Independent research into noise nuisance in residential buildings, including long-duration sound level registration, audio recordings, and acoustic analysis to identify sources and transmission routes.
• Luchtkwaliteitsonderzoek (Air Quality Research) Comprehensive air quality investigation in utility buildings covering ventilation/air change, VOCs, formaldehyde, particulate matter, CO, microbiological factors and odor, including building inspection, sampling, ventilation measurements and accredited laboratory analyses.
• Geuronderzoek (Odor Research) Independent odor investigation in buildings to objectively determine the cause and spread of odor nuisance, including ventilation assessment, smoke tests, ventilation measurements, air samples and building envelope analysis.
• Vocht- en schimmelonderzoek (Moisture and Mold Research) Independent moisture and mold research in homes investigating condensation, leaks, building defects, ventilation, temperature, humidity and microbiological contamination, using thermographic and long-duration climate monitoring.
• Tochtonderzoek (Draft Research) Independent research into draft complaints and thermal comfort in homes, measuring air velocity, temperature distribution, ventilation, thermal bridges and air leaks using thermography.
• Legionella Beheersplan (Legionella Management Plan) Development of practical and technically substantiated Legionella management plans including water installation risk analysis, identification of risky components, control/inspection activities, sampling obligations and organizational responsibilities/registrations.
• Blootstellingsonderzoek Gevaarlijke Stoffen (Hazardous Substances Exposure Research) Occupational hygiene exposure assessment compliant with NEN-EN 689, evaluating inhalation exposure to hazardous substances (welding fumes, solvents, dust, vapors, aerosols) using personal and stationary air measurements, work observations and Similar Exposure Groups (SEG) methodology.
• Binnenmilieu Onderzoek voor particulieren (Indoor Environment Research – Residential) Fixed-price (€297 incl. VAT) comprehensive indoor environment assessment for private homeowners including inventory, broad range of measurements, building inspection, data analysis and recommendations. Sold via webshop.
• Geuronderzoek voor particulieren (Odor Research – Residential) Fixed-price (€297 incl. VAT) odor investigation service for homeowners experiencing unexplained odors (sewage, chemical, musty, mold), including inventory, measurement plan, odor source and concentration measurement. Sold via webshop.
• Geuroverdrachtsonderzoek (Odor Transmission Research – Residential) Fixed-price (€697 incl. VAT) odor transmission research between apartments and within homes using smoke simulation, air flow analysis and particulate matter concentration measurements. Requires neighbor cooperation. Sold via webshop.
• Tochtonderzoek voor particulieren (Draft Research – Residential) Fixed-price (€297 incl. VAT) draft and cold air research for homeowners using smoke tests, thermal imaging and temperature measurements to identify draft sources and cold air infiltration, with action plan and ventilation assessment. Sold via webshop.
• Vocht- en Schimmelonderzoek voor particulieren (Moisture and Mold Research – Residential) Fixed-price (€297 incl. VAT, additional air samples €130 each) moisture and mold research for private individuals including measurement plan, mold source identification, moisture level measurements, air sampling and laboratory analysis. Sold via webshop.

Quantifiable outcome

• Customer satisfaction rating of 9.4 out of 10 based on 230 reviews
• +2 more outcomes

Named customers12 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Four partnerships are on record, tiered core and minor.

• LongfondscoreStrategic or Co-development PartnerStrooming is a 'bedrijfsvriend' (corporate friend) of the Longfonds (Dutch lung health foundation). The partnership emphasizes shared mission to improve air quality and lung health. Strooming supports the foundation's mission through financial contributions, awareness campaigns (e.g., Telegraaf 'De Longen' campaign with pulmonologist Leon van den Toorn), and research collaboration. The partnership provides Strooming with credibility in the health and respiratory sector.
• MVO NederlandcoreStrategic or Co-development PartnerStrooming is a member of MVO Nederland, the largest sustainable business network in Europe. The partnership reflects Strooming's commitment to Corporate Social Responsibility (CSR) and contributes to Sustainable Development Goals (SDGs), particularly SDG 3 (Health and Well-being) and SDG 11 (Sustainable Cities and Communities). MVO Nederland provides Strooming with a network for knowledge sharing and collaboration on sustainability projects.
• ISIAQ (International Society of Indoor Air Quality and Climate)coreStrategic or Co-development PartnerStrooming is a partner of ISIAQ, an internationally recognized organization focused on improving indoor air quality and climate. The partnership provides access to the latest scientific research and innovations in indoor environment science, enables contribution to international research, and supports exchange of expertise with professionals worldwide. This ensures Strooming's methods align with the most current international standards.
• Gezond BinnenminorStrategic or Co-development PartnerStrooming partners with Gezond Binnen, an initiative focused on raising awareness about indoor air quality and its impact on health. The collaboration aims to increase public awareness about air quality impacts, deliver scientifically grounded solutions, and support individuals and organizations in improving their indoor environment.

Scale indicators4 records

Broad incumbents

• Witteveen+Bos: Dutch engineering and consulting firm with environmental and building physics practices. Provides overlapping indoor environment and building performance services to institutional clients, often within larger project scopes than Strooming handles.
• Arbo Unie: Dutch occupational health and safety services provider with workplace exposure assessment and occupational hygiene capabilities. Adjacent competitor to Strooming's NEN-EN 689 hazardous substances exposure research services.
• Sweco: Major European engineering consultancy with Dutch operations spanning building physics, environment, and infrastructure. Offers indoor environment services as part of a comprehensive portfolio, competing for enterprise and government engagements.
• ArboNed: Major Dutch occupational health and safety service provider offering workplace health services including exposure assessments. Competes with Strooming's occupational hygiene exposure research (NEN-EN 689) as part of broader employer health services.
• Royal HaskoningDHV: Large Dutch-headquartered international engineering consultancy with broad indoor environment and building physics capabilities. Competes with Strooming on enterprise and government projects as part of a much wider portfolio of consulting services.

Direct peers

• Peutz: Dutch engineering consultancy specializing in acoustics, building physics, and indoor environment quality. Provides independent measurement and consulting services directly comparable to Strooming's core offerings across light, sound, air quality, and thermal comfort.
• DGMR: Dutch engineering firm specializing in acoustics, building physics, and environmental research. Offers competing independent measurement and advisory services in indoor environment, noise, and air quality for institutional and industrial clients.
• LBP|SIGHT: Dutch engineering consultancy focused on building physics, fire safety, and indoor environment. Competes with Strooming in independent measurements and compliance assessments for residential, commercial, and institutional buildings.
• Cauberg-Huygen: Dutch engineering consultancy with deep expertise in acoustics, building physics, and indoor environment. Provides measurement, research, and advisory services that overlap directly with Strooming's light, sound, and air quality offerings.

Others

• ISSO: Dutch knowledge institute for building services and installations. Not a direct competitor but a key ecosystem player—Strooming's ISIAQ partnership shows alignment with this industry network that shapes standards, training, and best practices in indoor environment.

Market position

Strengths5 records

Weaknesses5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/Strooming
• Facebookfacebook.com/Strooming
• LinkedInlinkedin.com/company/strooming

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Strooming