Experts in Flex
Experts in Flex is a Dutch advisory and tooling firm serving temporary staffing, detaching, and payroll companies with regulatory compliance, cost price calculations, digitalization consulting, interim management, and proprietary tools (ET-tool, WAB-tool, FlexChecker) co-developed with industry associations NBBU and ABU.
- Company typePrivate
- Founded1987
- HeadquartersScherpenzeel, Netherlands
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Experts in Flex does
Experts in Flex is a privately held Dutch knowledge and advisory firm that serves the Netherlands' flex staffing industry — temporary employment agencies, detaching bureaus, and payroll companies. Founded by Henk Geurtsen in 1987 (with Geurtsen's flex-industry career dating to 1976) and headquartered in Scherpenzeel, the firm operates as a small partnership of roughly four core partners plus additional contributors, with a combined industry experience exceeding 130 years. Its practice covers regulatory compliance (ABU/NBBU CAO, ET-regeling, WAB, StiPP pension, SNCU controls, WHK), cost price and equal pay (inlenersbeloning) calculations, organizational and process optimization, digitalization consulting (software selection and implementation project management), and interim management support. Its primary customers are Dutch flexbedrijven, with secondary audiences including backoffice and HR personnel at those firms, served both directly and through industry association channels.
The firm's product portfolio combines professional services with a suite of proprietary calculation and workflow tools. Calculation tools include the ET-tool (expat tax arrangements for labor migrants, co-developed with ABU and NBBU across multiple versions), the WAB-tool (Wet Arbeidsmarkt in Balans premium and transition compensation effects, jointly developed with NBBU), a transitievergoeding tool for variable-income workers, a NOW subsidy calculator, and a cost price and employment conditions tool launched jointly with NBBU in November 2025. FlexChecker, developed in partnership with Fully in Control, is a modular cloud platform for managing business objectives, processes, risks and control measures, including a process builder, automated workflows, dashboards and digital audit dossiers. Distribution is partly embedded into the NBBU member online environment and partly direct.
Commercially, Experts in Flex generates revenue through four streams: (1) advisory and interim/project management engagements on a professional services basis; (2) downloadable and subscription-based tools, including FlexChecker; (3) open-enrollment and in-company workshops and webinars on topics ranging from CAO knowledge and ET-regeling to AI literacy and successful teams; and (4) the annual FlexFuture event series, including FlexFuture 2026 (December 1, 2026), positioned as the flagship annual gathering on flex legislation. Marketing is conducted primarily through thought-leadership blogs (including Flexmarkt publications), the FlexFuture event, workshops and webinars, the corporate website, and email newsletter. The firm is bootstrapped with no external funding, and has deepened its institutional footprint through sustained co-development partnerships with the NBBU (strategic) and ABU (strategic), with a more minor implementation partnership with Fully in Control for FlexChecker.
Experts in Flex firmographics
Firmographics- Name
- Experts in Flex
- Legal name
- Experts in Flex
- Website
- https://expertsinflex.nl
- Company type
- Private
- Founded year
- 1987
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Experts in Flex is a Dutch advisory and tooling firm serving temporary staffing, detaching, and payroll companies with regulatory compliance, cost price calculations, digitalization consulting, interim management, and proprietary tools (ET-tool, WAB-tool, FlexChecker) co-developed with industry associations NBBU and ABU.
- Ownership category
- akta.pro rank
Experts in Flex industry classification
Industry- Product category
- Staffing Industry Consulting
- NAICS
- Human Resources Consulting Services (541612)
- SIC
- Services-Management Consulting Services (8742)
- akta.pro primary industry
- HR Policy, Governance, Compliance & Risk Advisory (BPACAJAF)
- akta.pro secondary industry
- Labor Relations & Employment Practice Advisory (BPAHAGAK)
Keywords
Where Experts in Flex is headquartered
LocationHeadquarters
- HQ city
- Scherpenzeel
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
Experts in Flex business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Others
Revenue model
- Advisory Services: Consulting services covering compliance, organizational structure, process optimization, due diligence, M&A advisory, and SNCU control support.
- Tools and Software: Downloadable tools for ET-regeling, cost price calculation, WAB analysis, NOW calculation, transition compensation calculation, and FlexChecker platform subscriptions.
- Training and Workshops: Open enrollment workshops and in-company training sessions on topics including temporary employment CAO, ET-regeling, successful teams (Belbin), and other flex industry topics.
- Events: Annual FlexFuture events covering labor legislation and regulations in the flex industry.
Go-to-market motion2 records
Distribution channels4 records
Marketing channels5 records
Experts in Flex product offering
Product offeringCore offering
Experts in Flex provides advisory, compliance, and digitalization consulting services to Dutch flex companies (temporary staffing, detaching, and payroll agencies), complemented by proprietary calculation and process tools (ET-tool, WAB-tool, FlexChecker cloud platform, transitievergoeding tool, NOW-tool, and cost price tool) and training delivered through workshops, webinars, and the annual FlexFuture conference.
Product overview
Experts in Flex is a consulting company serving flex/temporary staffing companies in the Netherlands. The company offers a portfolio of advisory, compliance, digitalization, interim management, and training services. Their proprietary tools include the ET-tool (expats tax calculation), WAB-tool, FlexChecker (cloud-based process/risk management platform), transitievergoeding tool, NOW subsidy calculator, and the joint NBBU/Experts in Flex cost price calculation tool. Services are delivered through consultants with over 130 years of combined industry experience, supporting clients with regulatory compliance, process optimization, recruitment technology consulting, and professional development through workshops and the annual FlexFuture event series.
Differentiator
Problem solved
Functional benefit
Products and services
- Advies (Advisory) Advisory services for flex companies covering legislation and regulations in the flex industry, cost-saving measures, and optimal business organization. Includes Due Diligence, recruitment, marketing, process optimization, and equal pay (inlenersbeloning) calculations.
- Compliance Compliance services ensuring adherence to applicable laws and regulations for temporary staffing, detaching, and payroll companies. Includes CAO compliance (SNCU & StiPP), Werkhervattingskas (WHK) control, and ET-uitruil.
- Digitalisering (Digitalization) Consulting for the selection and implementation of software solutions best suited to a flex company's business. Experts in Flex acts as project manager to steer software vendors and help users maximize software utilization.
- Interim- en projectmanagement Interim and project management support from partners and consultants with years of experience in management/director positions within the flex industry.
- Workshops en webinars Training programs including open enrollment workshops, in-company workshops tailored to specific organizational needs, and webinars. Topics include AI literacy, CAO knowledge, ET schemes, successful teams (Belbin), and more.
- Tools (calculatie-instrumenten bundle) Proprietary calculation tools portfolio for flex companies including the ET-tool (expats tax), WAB-tool, FlexChecker, transitievergoeding tool, NOW-tool, and kostprijsberekening tool.
- ET-tool Tool for calculating ET (Expats/Tax) arrangements for labor migrants. Multiple versions released in collaboration with industry associations ABU and NBBU.
- WAB-tool Tool developed with NBBU to calculate premium effects from WAB (Wet Arbeidsmarkt in Balans) legislation and transition compensation costs based on WHK decisions.
- FlexChecker Modular cloud platform for managing goals, processes, risks, and control measures in the flex industry. Includes process builder with version control, automatic workflows for audits and questionnaires, dashboards, digital control files, and flex-industry-specific knowledge base.
- Samenstelling arbeidsvoorwaarden en kostprijsberekening tool Tool for calculating composition of employment conditions and cost price, developed with NBBU. Launched November 2025 for 2026 calculations.
- Transitievergoeding tool Tool for correctly calculating transition compensation for employees with variable incomes such as on-call workers, temporary workers, and contracts with interruption periods.
- NOW-tool Free tool for calculating NOW (emergency employment measure) subsidy based on wage sum changes and revenue loss percentages.
- FlexFuture Events Annual event series on legislation and regulations in the flex industry. Includes FlexFuture 2023-2026 with speakers covering topics such as WTTA, labor market regulations, and cost calculations.
Companies that use Experts in Flex
Customer profileSegments3 records
Ideal customer profiles3 records
Experts in Flex technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Experts in Flex partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core and minor.
- NBBUcoreJoint development of the 'Samenstelling arbeidsvoorwaarden en kostprijsberekening' tool launched in November 2025. NBBU members can access the tool through the NBBU online environment.
- Fully in ControlminorPartnership for the FlexChecker platform's configuration concept and licensing model. Fully in Control provides the underlying technology for the process and risk management platform.
- NBBUcoreJoint development of WAB-tool to help calculate premium effects under the Wet Arbeidsmarkt in Balans (WAB) and transition compensation costs based on Whk decisions.
- ABUcoreCollaboration on development of ET-tool (ET-regeling tool) for the flex industry, with ABU involvement in the project.
Scale indicators2 records
Recent moves6 records
Expansion highlights4 records
Experts in Flex competitors and assessment
Company assessmentBroad incumbents
- Visma: Large Nordic/Dutch software conglomerate owning multiple HR, payroll, and compliance solutions (including Loket, Nmbrs, and others). Comparable because it serves the Dutch flex and staffing market with integrated HR/payroll/compliance tooling that overlaps with Experts in Flex's advisory and tool offerings.
- AFAS Software: Dutch HR, payroll, and ERP software provider widely used by SMEs and staffing companies in the Netherlands. Comparable because AFAS Profit integrates payroll, HR, and compliance features that overlap with Experts in Flex's tool portfolio and consulting scope.
- Workday: Global enterprise HR and finance cloud platform increasingly adopted by large Dutch employers and staffing groups. Comparable because Workday embeds HR compliance, workforce planning, and analytics capabilities that overlap with Experts in Flex's FlexChecker and advisory offerings at the enterprise end of the market.
- ADP: Global payroll and HR services provider with operations in the Netherlands serving employers including staffing agencies. Comparable because ADP bundles compliance, payroll, and HR advisory into integrated platforms that compete with Experts in Flex's compliance and calculation tools.
- Ceridian (Dayforce): Global HR, payroll, and workforce management platform with Dutch market presence. Comparable because Ceridian/Dayforce bundles payroll, compliance, and HR analytics capabilities that compete with Experts in Flex's tools and consulting offerings.
- SD Worx: Belgian-headquartered European HR and payroll services company with significant Dutch market presence. Comparable because it provides payroll, HR compliance, and advisory services to Dutch employers including staffing/flex companies, competing with Experts in Flex on both advisory and software dimensions.
Emerging players
- Nmbrs: Dutch cloud-based HR and payroll platform (part of Visma) targeting SMEs and staffing/flex companies. Comparable because it provides integrated payroll and HR functionality with embedded compliance features that compete with Experts in Flex's tool offerings.
- Loket: Dutch online payroll and HR software for SMEs (part of Visma group). Comparable because Loket provides payroll, HR, and compliance capabilities directly to Dutch small employers including flex and staffing companies, overlapping with Experts in Flex's compliance and advisory scope.
Direct peers
- Berenschot: Dutch consultancy with dedicated HR, labor relations, and public sector practices. Comparable because Berenschot advises Dutch employers on HR policy, labor compliance, and organizational design — overlapping with Experts in Flex's labor law and HR advisory offerings, though from a generalist rather than flex-specialist angle.
- Twynstra Gudde: Dutch management consulting firm with strong HR, change, and organizational advisory practice serving public and private sector clients in the Netherlands. Comparable because it competes for HR/organizational consulting engagements of the type Experts in Flex provides to flex companies.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Experts in Flex social profiles
Digital presenceExperts in Flex financial estimates
Financial estimateRevenue estimate
Valuation estimate
Experts in Flex leadership team
Management profileNumber of profiles
Profiles6 records
Experts in Flex funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Experts in Flex M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Experts in Flex
What does Experts in Flex do?
Experts in Flex provides advisory, compliance, and digitalization consulting services to Dutch flex companies (temporary staffing, detaching, and payroll agencies), complemented by proprietary calculation and process tools (ET-tool, WAB-tool, FlexChecker cloud platform, transitievergoeding tool, NOW-tool, and cost price tool) and training delivered through workshops, webinars, and the annual FlexFuture conference.
Is Experts in Flex a public or private company?
Experts in Flex is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Experts in Flex founded?
Experts in Flex was founded in 1987. It employs 1 to 10 people.
Where is Experts in Flex based?
Experts in Flex is headquartered in Scherpenzeel, Netherlands, in the Europe region.
How does Experts in Flex make money?
Four revenue lines are on record. Advisory Services are the primary driver. The others are tools and Software, training and Workshops and events.
Who are Experts in Flex's main competitors?
Broad incumbents on record are Visma, AFAS Software, Workday, ADP, Ceridian (Dayforce) and SD Worx. Emerging players are Nmbrs and Loket. Direct peers are Berenschot and Twynstra Gudde.
Does Experts in Flex have an API?
No public API is recorded for Experts in Flex.
What industry is Experts in Flex in?
Experts in Flex's product category is Staffing Industry Consulting. Its primary akta.pro industry code is BPACAJAF, HR Policy, Governance, Compliance & Risk Advisory, with a secondary code of BPAHAGAK, Labor Relations & Employment Practice Advisory. Its NAICS code is 541612 and its SIC code is 8742.