WesselinkVanZijst: Experts in Mutual Gains
- Company typePrivate
- Founded-
- HeadquartersZeist, Netherlands
- Headcount11–50
- GTM typeB2B
- OfferingServices
WesselinkVanZijst: Experts in Mutual Gains firmographics
Firmographics- Name
- WesselinkVanZijst: Experts in Mutual Gains
- Legal name
- WesselinkVanZijst
- Website
- https://wesselinkvanzijst.nl
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Ownership category
- akta.pro rank
WesselinkVanZijst: Experts in Mutual Gains industry classification
Industry- Product category
- Stakeholder Management Consulting
- NAICS
- Management Consulting Services (54161), Other Management Consulting Services (541618)
- SIC
- Services-Management Consulting Services (8742)
- akta.pro primary industry
- Strategic Partnerships, Alliances & JVs Advisory (BPAHADAI)
- akta.pro secondary industries
- Operational Risk, Reliability & Resilience (FMEA, RCA, FRACAS) (EDABAKAI), Risk, Compliance & Internal Controls Consulting (BPAHACAJ)
Keywords
Where WesselinkVanZijst: Experts in Mutual Gains is headquartered
LocationHeadquarters
- HQ city
- Zeist
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
WesselinkVanZijst: Experts in Mutual Gains business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Others
Revenue model
- Consulting Services: Advisory and consultancy services for complex societal projects involving multiple stakeholders. Includes strategic stakeholder management, process facilitation, mediation, and independent process guidance. Revenue generated through project-based engagements with government agencies, public sector organizations, and private companies.
- SOM Academie Training Programs: Professional training programs including basic SOM training (3 days), SOM Professional (6 days), Joint Fact Finding (2 days, incompany available), and Harvert Serious Game (half-day). Training provided both as open enrollment and in-company programs.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Open enrollment training programs |
| Other | Multi-year contract | In-company training programs |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels8 records
WesselinkVanZijst: Experts in Mutual Gains product offering
Product offeringCore offering
WesselinkVanZijst provides consulting and training services for strategic stakeholder engagement (Strategisch OmgevingsManagement, or SOM), grounded in the Mutual Gains Approach (MGA). The firm advises government agencies, energy companies, and infrastructure organizations on complex societal projects, helping them build trust, manage multi-stakeholder processes, and achieve broad support through interest-based negotiation. The SOM Academie trains professionals in stakeholder management, and the firm publishes practical guides, diagnostic tools, and a podcast.
Product overview
WesselinkVanZijst is a consulting and training firm specializing in Strategic Stakeholder Management (Strategisch OmgevingsManagement, or SOM), built on the Mutual Gains Approach philosophy. The company's offering consists of advisory and consulting services applying the SOM methodology, complemented by the SOM Academie which provides professional training programs (including foundational courses, Joint Fact Finding, SOM Professional certification, and the Harvert Serious Game). The portfolio includes published practical guides and handbooks on SOM methodology, diagnostic tools (SOM Organisatiescan), visual planning tools (SOM Canvas, SOM Cirkel, Werkblad SOM Gesprek), and knowledge-sharing platforms including the 'Proef op de SOM' podcast. Together, these products and services form a comprehensive ecosystem for professionalizing stakeholder engagement and consensus-based negotiation in complex societal projects.
Differentiator
Problem solved
Functional benefit
Brands
- SOM (Strategisch OmgevingsManagement): Core methodology developed by WesselinkVanZijst for strategic environmental/stakeholder management. Also referred to as SSE (Strategic Stakeholder Engagement) in English contexts.
Products and services
- Strategisch OmgevingsManagement (SOM) Advisory Consulting and advisory service applying the proprietary SOM methodology to help government agencies and large organizations manage complex societal challenges through structured stakeholder engagement, interest-based negotiation, and trust building.
- Procesbegeleiding (Process Facilitation) Independent process guidance for complex multi-party dialogues and negotiations, with the facilitator serving the process and the societal task between the parties.
- Borgen van omgevingsgericht werken (Embedding Stakeholder-Oriented Working) Organizational change service that guides organizations in embedding environment-oriented and stakeholder-oriented working practices across the whole organization, beyond individual omgevingsprofessionals.
- SOM Academie Training Programs A portfolio of professional training programs in SOM and stakeholder management, delivered as open enrollment or in-company training to individuals and organizations.
- Basistraining Strategisch OmgevingsManagement (SOM) A 3-day foundational training program teaching the principles and practices of Strategic Stakeholder Management (SOM) for professionals new to the discipline.
- SOM Professional Training An advanced 6-day professional certification program for experienced practitioners seeking to deepen their Strategic Stakeholder Management expertise.
- Joint Fact Finding Training A 2-day training program focused on collaborative fact-finding methodologies that help stakeholders build a shared factual basis for complex issues.
- Harvert Serious Game A half-day experiential learning tool using gamification to teach negotiation and stakeholder engagement skills in a simulated environment. Available in-company.
- Fake News Training A half-day workshop addressing challenges faced by environmental professionals in navigating disinformation and misinformation in stakeholder processes.
- Praktijkboek Strategisch OmgevingsManagement (Publication) A comprehensive practical guide to the SOM methodology authored by Jeroen Medema and colleagues, providing detailed frameworks and case studies for practitioners.
- Canvas Omgevingsmanagement (Publication) A practical guide co-authored by Thijs Kraassenberg and Johanneke de Lint, providing a canvas-based framework for planning and executing stakeholder engagement processes.
- Handboek Strategisch OmgevingsManagement 2.0 (Publication) Updated comprehensive handbook covering the SOM methodology version 2.0, including new frameworks and expanded guidance for practitioners.
Quantifiable outcome
- Durgerdam participation approach won WOW Juryprijs 2019 and 'Beste artikel omgevingsmanagement 2019' award
- +2 more outcomes
Companies that use WesselinkVanZijst: Experts in Mutual Gains
Customer profileNamed customers12 records
Segments4 records
Ideal customer profiles2 records
WesselinkVanZijst: Experts in Mutual Gains technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
WesselinkVanZijst: Experts in Mutual Gains partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Negotiation & Public Service (NPS)coreFounded by Stefan Szepesi, NPS was an organization training public sector professionals in negotiation. The organization has become integrated into WesselinkVanZijst, with Stefan Szepesi now serving as Director and head of the SSE Academy. NPS represents a strategic acquisition that expanded WesselinkVanZijst's training capabilities and international reach.
Scale indicators4 records
Recent moves6 records
Expansion highlights5 records
WesselinkVanZijst: Experts in Mutual Gains competitors and assessment
Company assessmentRegional players
- PBLQ: Dutch public-administration and IT consultancy advising government clients on complex societal and digital programs. Comparable as a domestic consultancy serving Dutch ministries and semi-publics on stakeholder-intensive transformation programs.
- Purpose (Purpose+ / Bureau Ruimte & Vorm): Dutch advisory firms operating in the area development, participation, and stakeholder-management space. Comparable as a Dutch peer serving municipalities and developers on citizen participation and area-development projects.
- Andersson Elffers Felix (AEF): Dutch consulting firm focused on public sector, infrastructure, and societal challenges. Comparable because it advises Dutch government clients on stakeholder-intensive programs in housing, infrastructure, and public services, often alongside or against WesselinkVanZijst.
- Twynstra Gudde: Major Dutch management consulting firm with a public-sector and stakeholder engagement practice. Comparable as a Dutch consultancy advising on complex societal projects; broader portfolio but overlapping client base (senior WesselinkVanZijst advisor Jeroen Medema was a former trainee there).
Emerging players
- Interaction Institute for Social Change: Specialist in collaborative processes, dialogue, and stakeholder engagement. Comparable as a niche practice focused on interest-based approaches to complex societal issues, though smaller in scale and oriented toward US social-sector work.
Broad incumbents
- Deloitte Public Sector (Netherlands): Large global consultancy with a Dutch public-sector practice serving ministries and infrastructure clients. Comparable on end-clients (Rijkswaterstaat, ministries, semi-publics) and on transformation mandates that include stakeholder engagement as a workstream.
- KPMG Public Sector (Netherlands): Big Four advisory firm with a Dutch public-sector practice advising ministries, agencies, and semi-public organizations on transformation and stakeholder programs. Comparable on buyer profile; broader portfolio but overlapping mandate areas (energy, infrastructure, defense).
Direct peers
- Consensus Building Institute (CBI): Global stakeholder engagement and consensus-building consultancy. WesselinkVanZijst is an active member of the CBI Global Network, and the two operate in the same Mutual Gains Approach / multi-stakeholder facilitation space for public infrastructure and policy projects.
- Kearns & West: US-based public participation and stakeholder engagement firm specializing in infrastructure, transportation, water, and energy projects. Comparable in applying interest-based negotiation and joint fact finding to large, multi-stakeholder public-sector engagements.
- Resolved (by MISSION + VISION): International stakeholder engagement and public participation consultancy applying consensus-building and negotiation methods to infrastructure and energy projects. Comparable in methodology and target use cases (multi-stakeholder facilitation on complex societal projects).
Market position
Strengths5 records
Weaknesses5 records
Competitive moat2 records
Key risks6 records
Key highlights7 records
Customer concentration
WesselinkVanZijst: Experts in Mutual Gains social profiles
Digital presenceWesselinkVanZijst: Experts in Mutual Gains financial estimates
Financial estimateRevenue estimate
Valuation estimate
WesselinkVanZijst: Experts in Mutual Gains leadership team
Management profileNumber of profiles
Profiles12 records
WesselinkVanZijst: Experts in Mutual Gains funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
WesselinkVanZijst: Experts in Mutual Gains 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 WesselinkVanZijst: Experts in Mutual Gains
What does WesselinkVanZijst: Experts in Mutual Gains do?
WesselinkVanZijst provides consulting and training services for strategic stakeholder engagement (Strategisch OmgevingsManagement, or SOM), grounded in the Mutual Gains Approach (MGA). The firm advises government agencies, energy companies, and infrastructure organizations on complex societal projects, helping them build trust, manage multi-stakeholder processes, and achieve broad support through interest-based negotiation. The SOM Academie trains professionals in stakeholder management, and the firm publishes practical guides, diagnostic tools, and a podcast.
Is WesselinkVanZijst: Experts in Mutual Gains a public or private company?
WesselinkVanZijst: Experts in Mutual Gains is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was WesselinkVanZijst: Experts in Mutual Gains founded?
WesselinkVanZijst: Experts in Mutual Gains was founded in -1. It employs 11 to 50 people.
Where is WesselinkVanZijst: Experts in Mutual Gains based?
WesselinkVanZijst: Experts in Mutual Gains is headquartered in Zeist, Netherlands, in the Europe region.
How does WesselinkVanZijst: Experts in Mutual Gains make money?
Two revenue lines are on record. Consulting Services are the primary driver. The others are SOM Academie Training Programs.
Who are WesselinkVanZijst: Experts in Mutual Gains's main competitors?
Regional players on record are PBLQ, Purpose (Purpose+ / Bureau Ruimte & Vorm), Andersson Elffers Felix (AEF) and Twynstra Gudde. Interaction Institute for Social Change is listed as an emerging player. Broad incumbents are Deloitte Public Sector (Netherlands) and KPMG Public Sector (Netherlands). Direct peers are Consensus Building Institute (CBI), Kearns & West and Resolved (by MISSION + VISION).
Does WesselinkVanZijst: Experts in Mutual Gains have an API?
No public API is recorded for WesselinkVanZijst: Experts in Mutual Gains.
What industry is WesselinkVanZijst: Experts in Mutual Gains in?
WesselinkVanZijst: Experts in Mutual Gains's product category is Stakeholder Management Consulting. Its primary akta.pro industry code is BPAHADAI, Strategic Partnerships, Alliances & JVs Advisory, with a secondary code of EDABAKAI, Operational Risk, Reliability & Resilience (FMEA, RCA, FRACAS). Its NAICS code is 54161 and its SIC code is 8742.