O4 Wheelchairs

What O4 Wheelchairs does

O4 Wheelchairs is a Dutch designer and manufacturer of bespoke manual wheelchairs, founded in 2004 by Stef Beumer and headquartered in Varsseveld, Achterhoek, Netherlands. The company operates as a subsidiary of Pezy and produces the FLOW product line, which is built around its proprietary Flow Seat System — a dynamic seating mechanism that allows users to continuously adjust seat and backrest angles while seated, combined with Seat Elastica woven material for shock absorption and a curved aluminum frame for stability. The product portfolio is modular: four base models (FLOW Active, FLOW Mono Active, FLOW Easy Active, Flow Easy Relax) are combinable with three seat systems (Original, Active, Relax) and three frame types, plus a fully custom Maatwerk (bespoke) offering for atypical body sizes and specialized applications such as postal-delivery wheelchairs. All wheelchairs are hand-built in the Varsseveld factory to individual customer measurements.

O4 generates revenue primarily from one-time custom wheelchair sales, complemented by add-on accessories including electric propulsion systems and Adaptiv-Bike handbikes. Pricing is not publicly disclosed but is typically partially or fully covered by Dutch (WMO, UWV) and German (Krankenkasse) health insurance frameworks. The go-to-market model is hybrid: direct factory sales with on-site test rides and home consultation services, augmented by a curated European dealer network, German Sanitätshäuser (medical supply houses) for insurance-channel fulfillment, and professional referral relationships with ergotherapists (occupational therapists). Customers are individual end-users across active lifestyle, neurological, elderly, pediatric, and workplace-accommodation segments. O4 holds European medical-device certifications (DIN/ISO 12183, 12182, 7176-15, 7176-19, NEN-1041, Medical Device Directive 93/42/EG) and was awarded the Dutch NKH quality mark in June 2026. Current leadership includes Managing Director René Verheij and Commercial Consultant Marc van Aken.

Name

O4 Wheelchairs

Legal name

O4 Wheelchairs

Website

https://o4wheelchairs.com

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

1–10 employees

Short description

O4 Wheelchairs is a Dutch manufacturer of custom manual wheelchairs built around its proprietary Flow Seat System, enabling dynamic, user-adjustable seating. Founded in 2004 in Varsseveld and selling across Europe to individual end-users, ergotherapist referrals, and German Sanitätshäuser.

Ownership category

akta.pro rank

Product category

Manual Wheelchairs

SIC

Orthopedic, Prosthetic & Surgical Appliances & Supplies (3842)

akta.pro primary industry

Mobility Aids (Wheelchairs, Scooters, Walkers, Canes) (HLAHAMAA)

akta.pro secondary industry

Seating & Positioning Systems (Cushions, Backs, Pressure Relief) (HLAHAMAB)

Keywords

• Manual wheelchairs
• Mobility aids
• Custom wheelchairs
• Dynamic seating
• Ergonomic seating

Headquarters

HQ city

Varsseveld

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Wheelchair Sales: O4 Wheelchairs generates revenue primarily from the sale of custom-made manual wheelchairs. Each wheelchair is manufactured to exact customer specifications including seat width, depth, back height, and various customization options.
2. Accessories and Add-ons: Revenue from add-on products including handbikes (Adaptiv-Bikes), electric propulsion systems, and various wheelchair accessories.
3. Customization Services: Revenue from special custom-made wheelchairs for unique needs including extreme cases, very tall or short individuals, and special applications like postal delivery wheelchairs.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

O4 Wheelchairs designs and manufactures custom-made manual wheelchairs featuring its proprietary Flow Seat System, which enables dynamic sitting through continuous adjustability of seat angle and backrest angle while the user remains seated. The product line comprises four base models (FLOW Active, FLOW Mono Active, FLOW Easy Active, Flow Easy Relax) configurable across three frames and three seat systems, with full custom (Maatwerk) options for special needs, plus electric propulsion and handbike add-ons.

Product overview

O4 Wheelchairs is a Dutch designer and manufacturer of customizable manual wheelchairs based on the proprietary Flow Seat System. The product portfolio consists of four base models (FLOW Active, FLOW Mono Active, FLOW Easy Active, Flow Easy Relax) that can be combined with three seat types (Original, Active, Relax) and three frame types (FLOW, FLOW Mono, FLOW Easy), plus custom-made options. The Flow Seat System enables dynamic sitting with adjustable seat and back angles during use. Add-on accessories include electric propulsion systems and handbikes. All wheelchairs are manufactured in Varsseveld, Netherlands, with extensive customization options for individual body measurements and needs.

Differentiator

Problem solved

Functional benefit

Brands

• FLOW: The core wheelchair product line featuring dynamically adjustable seating. Includes Flow Active (standard active use), Flow Mono Active (simplified single-tube frame for active users), Flow Easy Active (enhanced adjustability for broader needs), Flow Easy Relax (with lie-flat and stand-up functions), and Flow Custom (fully customized solutions). All wheelchairs incorporate the FLOW SEAT SYSTEM for dynamic sitting.
• FLOW Seat System
• Flow
• Flow Mono
• Flow Easy
• Flow Custom
• Workhopper

Products and services

• FLOW Active Adjustable manual wheelchair combining the FLOW frame with the Active Seat, featuring unique angle adjustment for backrest and seat, dynamic sitting posture, integrated anti-tip safety, and shock absorption. Designed for active wheelchair users.
• FLOW Mono Active Sporty manual wheelchair with stable single-tube frame construction and optimized weight, combining the FLOW Mono frame with the Active Seat for active users.
• FLOW Easy Active Adjustable wheelchair combining the FLOW Easy frame with the Active Seat, offering comfortable and pain-free mobility with up to 30% more efficient energy use.
• Flow Easy Relax Relaxation wheelchair with extra torsional spring module, offering recline and stand-up functions along with efficient energy management.
• FLOW Custom (Maatwerk) Fully customized wheelchair built to individual specifications for special mobility needs (extreme sizes, neurological conditions, special applications such as postal delivery wheelchairs), using the FLOW concept as the basis.
• Electric Propulsion add-on Electric drive system compatible with O4 Flow wheelchairs, prepared during manufacturing for E-Drive mounting to extend range and enable higher outdoor speeds.
• Handbike / Adaptiv-Bike add-on Attachable handbike that transforms the Flow wheelchair into a mobility device with greater range, compatible with all Flow models except FLOW Mono.

Named customers6 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Sanitätshäuser (Medical Supply Houses)coreChannel Partner/ Reseller/ DistributorO4 Wheelchairs works with experienced sanitätshäuser in Germany who assist customers with Krankenkasse (health insurance) applications, provide product advice, and handle local delivery and support.
• European DealerscoreChannel Partner/ Reseller/ DistributorSelected dealers across Europe and beyond who are specialists in O4 wheelchairs. They have technical knowledge of products, provide good advice on wheelchair selection, and deliver wheelchairs to customers' homes.
• UWV (Dutch Social Security Institution)minorGTM or Marketing PartnerFor special wheelchairs that enable users to work, UWV or direct employers may contribute to the investment, creating a win-win situation for both user and employer.
• Ergotherapeuten (Occupational Therapists)coreChannel Partner/ Reseller/ DistributorOccupational therapists are key partners who recommend O4 wheelchairs to their clients based on ergonomic needs. They provide valuable input on proper fitting and adjustment.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Wolturnus: Danish custom-built wheelchair and active-user specialist producing bespoke titanium and aluminum chairs. Comparable on build-to-order customization model, European premium positioning, and active user focus.
• Panthera: Swedish manufacturer of ultralight carbon-fiber and titanium active manual wheelchairs. Highly comparable as a small premium European specialist serving active users with high-end customized builds.
• Motion Composites: Canadian premium carbon-fiber active manual wheelchair maker. Comparable as a niche specialist targeting active users with high-performance lightweight frames and custom builds.
• Meyra: German wheelchair manufacturer with strong Sanitätshaus and Krankenkasse distribution. Comparable as a direct competitor in the DACH manual wheelchair market with similar reimbursement-driven GTM.
• Küschall: Swiss premium lightweight active manual wheelchair brand (now part of Sunrise Medical). Closely comparable to O4 as a niche, premium, ultra-lightweight active wheelchair maker targeting independent users in Europe.
• Sopur (part of Sunrise Medical): European active manual wheelchair brand under Sunrise Medical. Comparable as a European-built premium active manual wheelchair with similar customization and reimbursement-channel distribution.

Broad incumbents

• Invacare: Global wheelchair, seating, and home medical equipment manufacturer (Küschall parent). Comparable on product category and European distribution, though broader portfolio and lower price tiers.
• Ottobock: Global German leader in prosthetics, orthotics, and wheelchairs with a broad mobility portfolio. Directly comparable as a premium European wheelchair and seating manufacturer with deep reimbursement expertise and DACH distribution strength.
• Sunrise Medical: World's largest manual and powered wheelchair manufacturer (Quickie, Zippie, RGK). Comparable on product category, target user, and European dealer distribution, though at much larger scale and broader price tiers.
• Permobil: Global premium powered wheelchair and seating manufacturer (includes TiLite and ROHO). Comparable on clinical/seating positioning and premium pricing, though more focused on powered mobility and pressure-care cushions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/o4wheelchairs
• LinkedInlinkedin.com/company/o4-wheelchairs
• Instagraminstagram.com/o4wheelchairs

Compliance8 records

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 O4 Wheelchairs