What +Anderen does

+Anderen B.V. is a privately held Dutch professional services firm headquartered in Rotterdam with a secondary office in Zwolle, employing approximately 8-9 professionals. The firm specializes in citizen participation and government-society collaboration, helping Dutch municipalities and housing corporations design and facilitate participation processes for spatial planning, energy transition, sustainability, and local democracy initiatives. Its core intellectual property is the +a method, a structured participation framework developed in collaboration with Erasmus University Rotterdam and grounded in scientific insights including appreciative inquiry, design thinking, strategic environmental management, and deep democracy.

The service portfolio is anchored on four lines: advisory services for collaboration challenges, participation and environmental management, project/program/process management, and organizational development through training. On top of these, +Anderen resells and supports a digital stack for client engagements — Mentimeter Enterprise (live polling, licensed exclusively through +Anderen across the Netherlands, Belgium, Luxembourg, and Germany for municipalities and housing corporations at EUR 637/year), Dembrane (conversation recording and analysis, as an official partner), and recommended platforms Wijwillendit and OpenStad. The firm also runs the +Anderen Academie, offering structured workshops on participation, communication, and leadership. Documented customers include Gemeente Tilburg, Den Haag, Zwolle, Zuidplas, Albrandswaard, Lingewaard, Elburg, Nissewaard, Borger-Odoorn, Krimpen aan den IJssel, and housing corporation Havensteder, spanning 46 named projects across sustainability, spatial planning, and collaborative government categories.

The company is founder-led by Onno de Vries and generates revenue through professional services fees, training and workshop revenue, and tool licensing residuals. Go-to-market relies on thought-leadership content, direct outreach, and founder-led inbound (e.g., the free Participatie spreekuur), with no external funding disclosed.

Name

+Anderen

Legal name

+Anderen B.V.

Website

https://plusanderen.nl

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1–10 employees

Short description

+Anderen is a Dutch consultancy (~8-9 people, Rotterdam and Zwolle) that helps municipalities and housing corporations design citizen participation processes using its proprietary +a method, developed with Erasmus University Rotterdam, and supplements consulting with tool reselling and training.

Ownership category

akta.pro rank

Product category

Government Participation and Collaboration Consulting

NAICS

Management Consulting Services (54161), Management, Scientific, and Technical Consulting Services (5416)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Digital Workplace & Collaboration Consulting (BPAHAEAH)

akta.pro secondary industry

Technical Enablement & Adoption Services (Change Management, Adoption, Champions) (BPAEANAC)

Keywords

• Citizen participation consulting
• Government stakeholder facilitation
• Participation methodology advisory
• Municipal collaboration services
• Public sector process management

Headquarters

HQ city

Rotterdam

HQ country

Netherlands

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Consulting and Advisory Services: Professional services revenue from participation strategy consulting, process management, research, and advisory services to government clients (primarily Dutch municipalities). Services include participation policy development, process design and facilitation, training, and coaching.
2. Tool Licensing (Mentimeter): Revenue from reselling Mentimeter Enterprise licenses to municipalities and housing corporations in the Netherlands, Belgium, Luxembourg, and Germany. Licensed exclusively through +Anderen with invoice payment options.
3. Dembrane Licensing: Revenue from reselling Dembrane conversation analysis tool licenses to government clients as an official partner.
4. Training and Workshops: Revenue from participation training programs and workshops offered through the +Anderen Academie, including workshops on participation, communication, leadership, and complex societal collaboration processes.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

+Anderen provides participation and collaboration consulting to Dutch municipalities and public-sector organizations. The firm designs and facilitates citizen participation processes, advises on collaboration challenges, manages complex projects and programs, and delivers organizational training through the +Anderen Academie, all anchored in its proprietary +a method developed with Erasmus University Rotterdam. The firm also resells and supports digital participation tools such as Mentimeter Enterprise, Dembrane, and Wijwillendit.

Product overview

+Anderen is a participation and collaboration consultancy offering a unified service portfolio centered on their proprietary +a methode (Plus-A Method), developed with Erasmus University Rotterdam. Their core offerings include advisory services for collaboration challenges, participation and environmental management, project/program/process management, and organizational development through training. The portfolio is supplemented by digital tools: Mentimeter (live polling, which they resell as an authorized partner), Wijwillendit (participation platform), and Dembrane (conversation recording and analysis, offered as an official partner). Additional services include the Participatie spreekuur (free consultation hour) and the Academie (Academy) with workshops and training programs. The company also manages client projects across municipalities in the Netherlands.

Differentiator

Problem solved

Functional benefit

Brands

• +a methode: A participation methodology developed in collaboration with Erasmus University Rotterdam, based on scientific insights including appreciative inquiry, design thinking, strategic environmental management, and deep democracy.

Products and services

• +a methode (Plus-A Method) Systematic participation methodology developed in collaboration with Erasmus University Rotterdam, grounded in appreciative inquiry, design thinking, strategic environmental management, and deep democracy. It guides initiative holders through citizen participation with fixed principles that adapt to each municipality, network, and community context.
• Advies bij samenwerkingsvraagstukken (Advisory for Collaboration Challenges)

Quantifiable outcome

• Participation vision unanimously adopted by municipal councils (e.g., Zwolle)
• +3 more outcomes

Named customers11 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature1 record

Partnerships

Three partnerships are on record, tiered core.

• Erasmus Universiteit RotterdamcoreStrategic or Co-development PartnerThe +a method was developed in collaboration with Erasmus Universiteit Rotterdam and tested in the practice of dozens of municipalities. The methodology is rooted in proven scientific insights from the academic partnership.
• MentimetercoreTechnology or IntegrationOfficial partner for Mentimeter Enterprise licensing. Municipalities and housing corporations in Netherlands, Belgium, Luxembourg, and Germany can purchase Mentimeter exclusively through +Anderen with invoice payment options.
• DembranecoreTechnology or IntegrationOfficial partner of Dembrane, a conversation analysis tool for governments. +Anderen facilitates license sales and provides support, training, and advice on implementing Dembrane in participation trajectories.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Emerging players

• I&O Research: Dutch research and consultancy firm specializing in public sector research, citizen participation, and policy evaluation. Comparable to +Anderen in serving Dutch municipalities with participation-related research and engagement services.
• Citisen: Dutch citizen participation platform used by municipalities for digital engagement and citizen input collection. Comparable to +Anderen as a participation-focused solution for Dutch municipalities, but software-platform oriented rather than consulting-led.
• Drift: Dutch research institute at Erasmus University Rotterdam focused on transition studies, with applied work on societal participation and governance experiments. Comparable to +Anderen in academic grounding (Erasmus) and participation focus, though more research-oriented than consulting-driven.

Broad incumbents

• Kantar Public Netherlands: Global public sector research and consulting firm with a Netherlands presence, advising governments on citizen engagement, policy evaluation, and societal research. Comparable to +Anderen on participation methodology but operating at much larger scale with international reach.
• TwynstraGudde: Major Dutch organizational and public sector consultancy that advises government clients on complex societal and policy challenges, including citizen participation work. Overlaps with +Anderen on participation advisory but operates at much larger scale with a broader service portfolio.
• Andersson Elffers Felix: Dutch consultancy working on societal questions in the public sector, including participation, governance, and public finance. Comparable to +Anderen in public-sector focus and participation methodology, but operating at a larger scale with broader advisory offerings.
• Berenschot: Established Dutch consultancy with a strong public sector practice covering governance, participation, and organizational development for municipalities and central government. Comparable to +Anderen in serving Dutch government but with a much broader service portfolio.
• BMC Advies: Large Dutch public sector management consultancy serving municipalities, provinces, and central government on organizational, HR, and societal challenges. Comparable to +Anderen in targeting Dutch government buyers but with significantly broader capabilities and scale.

Direct peers

• Lysias Advies: Dutch consultancy specializing in participation, stakeholder dialogue, and public affairs for government and societal clients. Highly comparable to +Anderen in customer base (Dutch municipalities), service offering (participation process design and facilitation), and project scale.

Others

• OpenStad: Open-source Dutch participation platform used in citizen engagement projects (e.g., Singel van Zwolle). Comparable ecosystem player to +Anderen as a participation platform for municipalities; +Anderen already integrates OpenStad into its project portfolio, making it more of a partner/adjacent than a direct competitor.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/plusanderen

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 +Anderen