What UNITED LEGENDZ® does

United Legendz is the trade name for a Dutch group of construction, renovation, maintenance and installation companies operating under five labels — Biltz (nationwide maintenance, renovations, fire prevention and sustainability), Fixzed (the "Onderhoud 2.0" data-driven repair-maintenance platform with a fixed annual fee model), IJbouw (civil and utility construction founded 2005), Mouton (mutation, daily and service maintenance for housing corporations) and TBK (a 50-plus-year certified installer covering service, plumbing, climate and electrical work with 24/7 emergency service). The group is controlled through Biltz NL Topholding B.V., a multi-layered Dutch private holding, and has been part of the OMDUS partnership since July 2023 with Nordian Capital Partners and NPM Capital N.V. as financial backers.

The business serves primarily Dutch housing corporations (Eigen Haard, Vesteda, Lieven de Key) and institutional clients such as Schiphol Airport, offering the full building lifecycle from construction and transformation through ongoing maintenance to technical installations. Revenue is generated through a mix of recurring maintenance contracts and subscription-style fixed annual fees (Mouton, Fixzed), project-based construction and renovation work (Biltz, IJbouw), and installation and emergency services (TBK). Go-to-market is B2B enterprise field sales concentrated in the Randstad region (Amsterdam/Rotterdam/Utrecht), supported by a corporate website, LinkedIn presence, a dedicated careers portal (werkenbijunitedlegendz.nl) and an annual relationship event ("Meet United Legendz"). Operational technology includes the Fixzed data-driven maintenance platform and a Bewonersapp (resident app) for project communication, while headquarters relocated to the Lighthouse building in Amsterdam's District West in December 2024 with TBK continuing from Badhoevedorp.

Name

UNITED LEGENDZ®

Legal name

Biltz NL Topholding B.V. (operating as United Legendz)

Website

https://unitedlegendz.nl

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Short description

United Legendz is the Dutch holding for five construction, renovation, maintenance and installation labels (Biltz, Fixzed, IJbouw, Mouton, TBK) serving housing corporations and institutional clients in the Randstad with recurring maintenance, project-based construction and 24/7 installation services.

Ownership category

akta.pro rank

Product category

Building Maintenance and Construction Services

NAICS

Specialty Trade Contractors (238), Facilities Support Services (561210), Other Foundation, Structure, and Building Exterior Contractors (238190)

SIC

Services-To Dwellings & Other Buildings (7340), Construction - Special Trade Contractors (1700), General Bldg Contractors - Residential Bldgs (1520), General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Association Maintenance, Vendor & Capital Project Management (BPAJAHAM)

Keywords

• Building maintenance services
• Construction and renovation
• Technical installation services
• Property maintenance contracts
• Housing corporation services

Headquarters

HQ city

Amsterdam

HQ country

Netherlands

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Maintenance Contracts: Ongoing maintenance agreements with housing corporations for mutational maintenance, daily maintenance, and service maintenance. Includes minimum vacancy periods and rapid availability of released properties.
2. Project-Based Construction: Construction, renovation, and transformation projects including civil engineering, utility construction, and industrial projects. Revenue from project completion.
3. Installation Services: Technical installation services including plumbing, climate control, and electrical work through TBK with 24/7 emergency service availability.
4. Fixed Annual Maintenance Fee: Fixzed offers fixed annual fee model maximizing tenant satisfaction through efficient operations.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

United Legendz is a Dutch holding group of building-services companies that delivers structural renovations, repair maintenance, civil and utility construction, mutation/daily/service maintenance for housing corporations, and technical installation services (plumbing, climate, electrical) through its labels Biltz, Fixzed, IJbouw, Mouton, TBK, and Modutech. The group serves housing corporations, property owners, and institutional clients in the Netherlands, primarily in the Randstad region, offering both recurring maintenance contracts and project-based construction work.

Product overview

United Legendz is a group of construction, maintenance, renovation, and installation companies operating under five distinct labels: BILTZ (nationwide maintenance, renovations, fire prevention), FIXZED (Underhoud 2.0 data-driven repair maintenance platform), IJBOUW (civil and utility construction), MOUTON (mutation and service maintenance for housing corporations), and TBK (certified installer with service, plumbing, and climate expertise). The labels maintain their own identities while sharing a common holding structure for collective strength in the market.

Differentiator

Problem solved

Functional benefit

Brands

• BILTZ: Landelijk opererend onderhoudsbedrijf met disciplines in bouwkundige renovaties en transformaties, bouwkundige brandpreventie, schilderwerken, projectinrichting, vastgoedonderhoud en verduurzaming.
• FIXZED
• IJBOUW
• MOUTON
• TBK

Products and services

• Biltz A nationwide Dutch building-maintenance company offering comprehensive disciplines including all-round structural renovations and transformations, structural fire prevention, painting works, project interior fit-out, property maintenance, sustainability/verduurzaming, and result-oriented cooperation (RGS). Originally started as Van Zoelen B.V.
• Fixzed The 'Onderhoud 2.0' concept — a customer-focused platform for repair maintenance that uses data applications to optimize the repair-maintenance process, create predictability for future maintenance costs, and deliver a fixed annual rate with maximum tenant satisfaction.
• IJbouw A medium-sized Dutch contractor in civil and utility construction offering project expertise (construction, civil, industrial) and maintenance services (painting, carpentry, facade renovation and insulation, restoration), with a focus on transformation, renovation, and extension projects.
• Mouton A specialized maintenance contractor serving housing corporations with mutation maintenance, daily maintenance, and service maintenance, focused on minimal vacancy periods and rapid availability of vacated properties. Fixed clients include Eigen Haard, Vesteda, and Lieven de Key.
• TBK A certified Dutch installer with more than 50 years of experience offering all installation-technical solutions under one roof — service, plumbing (loodgieters), climate, and electrical — including 24/7 emergency service (storingsdienst). Notable fixed client is Schiphol Airport.
• Modutech (integrated within TBK) An energy-transition and innovation discipline within TBK specializing in solving complex issues around energy transition, building sustainability, and developing smart technologies for technical installations.

Quantifiable outcome

• Minimized vacancy periods through rapid property maintenance turnaround
• +1 more outcomes

Named customers4 records

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Four partnerships are on record, tiered minor, major and core.

• Lighthouse / District WestminorOthers · 1 December 2024United Legendz relocated headquarters to Lighthouse building in District West, a modern sustainable workspace. Biltz performed the renovation and transformation of the building.
• INBO (Architectenbureau)minorImplementation/ SI/ Consulting Partner · 1 December 2024INBO designed the interior of Lighthouse focusing on sustainable materials and products meeting highest environmental standards.
• ModutechmajorStrategic or Co-development Partner · 1 June 2024Modutech joined TBK (part of United Legendz) to strengthen expertise in innovation and energy solutions. Modutech specializes in innovation, energy questions, and sustainable building technologies. Integration brings commercial opportunities and enhanced technical knowledge.
• OMDUScoreStrategic or Co-development Partner · 3 July 2023United Legendz joined OMDUS, a partnership formed by Caspar de Haan and De Variabele, to create greater market impact for maintenance and renovation companies. The partnership focuses on innovation, CO2 reduction, circularity, and development of culture and people. United Legendz brings expertise in human capital development while benefiting from partners' strengths in product and process development.

Scale indicators5 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Van Wijnen: Dutch construction company specializing in residential development, renovation, and maintenance for housing corporations and investors. Comparable as a Dutch residential-focused construction and maintenance services provider with similar housing corporation client base.
• Koninklijke BAM Groep: Large publicly listed Dutch construction and property services group operating across construction, property, and infrastructure. Comparable to United Legendz as a multi-discipline Dutch construction/maintenance services provider serving institutional and public-sector clients.
• Heijmans: Major Dutch construction and real estate company with strong positions in residential construction, renovation, and property maintenance for housing corporations. Directly comparable in target customer (Dutch housing corporations) and service mix (renovation, maintenance, transformation).
• Dura Vermeer: Privately held Dutch construction company with divisions in residential construction, utility building, and infrastructure. Comparable in multi-discipline Dutch construction services and exposure to housing corporation clients in the Randstad region.
• TBI Holdings: Dutch holding company bundling multiple construction and technical installation businesses (similar multi-label structure to United Legendz). Directly comparable in multi-brand construction/installation roll-up serving Dutch real estate and infrastructure markets.
• VolkerWessels: Large Dutch construction group operating across construction, infrastructure, and property development with significant exposure to Dutch social housing renovation and maintenance. Comparable multi-brand Dutch construction roll-up serving housing corporation clients.
• Trebbe: Dutch construction and development firm with focus on residential construction, renovation, and transformation projects for housing corporations and municipalities. Comparable in Dutch housing maintenance and renovation services.
• Ballast Nedam: Dutch construction and infrastructure company active in residential and non-residential building, renovation, and property development. Comparable in Dutch construction and renovation services serving institutional clients.

Broad incumbents

• ISS A/S: Global facility services provider with significant Dutch operations in integrated facility management, technical maintenance, and installation services. Comparable in recurring maintenance and technical services for institutional real estate clients, though operating at much larger scale and broader geographic scope.
• Facilicom Group: Large Dutch facility services and property services provider offering maintenance, cleaning, security, and installation services. Comparable as a Dutch multi-discipline building services provider but operates at significantly larger scale and broader scope than United Legendz.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks1 record

Key highlights1 record

Customer concentration

• LinkedInlinkedin.com/company/united-legendz

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries6 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 UNITED LEGENDZ®