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Complete care of finishing projects

As a general contractor, INTOS has all the expertise to realise projects from start to finish. With specialised professionals with tight control over planning and budget, we ensure a smooth process. Read here what we can do for you.

Direct contact with our specialist
Lotte Huisman
Project Director
Watch the Labs introduction video
53 seconds
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Experienced

More than 30 years of construction and finishing experience.

Sustainable

INTOS builds projects with future generations in mind.

Quality

Certified for the highest standard.

Partnership

Engagement that goes beyond the brief.

Our Maincontracting services

At INTOS, we go one step further. Not only do we take care of the entire finishing process, we also provide the complete customised interior.

1

Design & Build

Thanks to the combination of construction expertise and interior design knowledge, we have everything we need to make all parts of a project fit together smoothly.

2

Turnkey

INTOS Maincontracting provides turnkey customisation that perfectly matches your workflow, with safe and flexible top-quality products for laboratories, airports, offices, hospitality, retail and the medical sector.

3

Project management & consultancy

INTOS Maincontracting advises you at every step towards an optimal completion project. With our expertise, we realise safe, efficient and flexible tailor-made solutions from A to Z.

Certifications

INTOS guarantees solutions according to recognised standards.

EcoVadis
GSES
FSC®
ISO 9001
ISO 14001
PEFC
SCL
VCA**
GMP
NPR 4500
Recent Maincontracting projects

See below how we realise ambitions together with our clients. From hospitable hotel and restaurant experiences to inspiring workplaces: As a general contractor, INTOS realises complete projects and takes care of everything from concept to completion.

Leisure

Restaurant Eataly, Amsterdam Schiphol Airport

Eataly opened its very first Dutch branch in Lounge 1 at Schiphol Airport
Leisure

Restaurant Azurite, House of Delft

In Huis van Delft, INTOS took care of the complete finishing and furnishing of Restaurant Azurite.
Leisure

DoubleTree by Hilton | Amsterdam CS

Medical

CANON Amstelveen | Medical academy & offices

Innovative working and learning environment for tomorrow's care
Airports

Aspire Lounge - Amsterdam Airport Schiphol

Airports

One World Lounge - Amsterdam Airport Schiphol

Airports

Star Alliance Lounge - Paris Charles-Des-Gaulle

Airports

Departure hall 1A - Amsterdam Airport Schiphol

Restaurant Azurite, House of Delft
Project highlight
Complete finishing and furnishing of Azurite restaurant

Maarten van Steenis

Construction project manager

Leisure
About this project
Project highlight
As coordinating main contractor, INTOS realised the complete finishing and furnishing

Discover INTOS Maincontracting

Overview, direction and reliability.

Whether it concerns an airport, a laboratory, a shielding solution or the complete completion of an office building, there is a need for a single party that keeps the overview, thinks along from the start and ensures that everything is delivered on time and as desired.
 
That is what INTOS Maincontracting stands for. We take control of the entire process: from design guidance to delivery. So that the focus can be on what really matters: the organisation and the people.
Maincontracting services

From concept to completion: we unburden you. Our strength? We combine architectural expertise with a keen eye for functionality and technical feasibility. 

1

Design & Build

Smart building starts with the right collaboration

With a permanent team of project managers, work planners and implementers, we form the stable core. Around this, we work with a carefully selected network of specialised partners. This combination makes us agile: we switch quickly, deliver tailor-made solutions and are not tied to cumbersome contractor structures.

Not by ourselves, but together. We join forces with leading architectural firms that translate your vision into a strong and feasible design. This creates a solid basis for a successful project.

Our integrated approach means we have all disciplines under one roof. No endless mail exchanges between different parties, no waiting for approvals from external contractors.

Our permanent team of project managers and work planners makes immediate decisions and moves quickly. Because we oversee and coordinate all phases, we keep a constant grip on progress. We identify delays early on and proactively prevent budget overruns.

Complexity is our business: Laboratories with strict safety requirements. Airports where 24/7 transit must be guaranteed. Hospitals where downtime is not an option. These are not exceptions for us, they are our everyday work.

With years of experience in high-tech and critical environments, we know how to deliver quality, even when the pressure is on. Tight deadlines, limited construction windows, strict regulations, we keep shifting gears. 

Turnkey

Construction and completion from A to Z

Where Design & Build is all about collaboration from design onwards, Turnkey means INTOS carries out your project from start to finish. Including demolition, technical finishing and customised interiors. Our permanent teams coordinate everything under one roof, with a single point of contact. Complete unburdening.

Turnkey means that we take care of the entire project from A to Z - from shell to turnkey. As a result, there is a single point of contact and we coordinate all disciplines: from finishing and installation work to customised furniture and specialist solutions.

We have over 30 years of experience in projects in critical environments such as airports, hospitals and laboratories, where downtime is not an option. Our strength lies in flexibility, phasing and careful planning. We coordinate closely with your operation, work outside peak times where necessary and ensure minimal inconvenience. Safety and continuity are paramount.

We ensure quality at multiple levels, from design to aftercare:
  • Experienced project team - permanent project leader and specialists with sector knowledge (labs, medical, airports)
  • Certified partners - we only work with reliable, qualified suppliers and subcontractors
  • Quality checks - at critical times, we carry out inspections according to established standards and requirements
  • Sector-specific certifications - BREEAM, CE marking, FSC/PEFC, and industry-specific safety standards
  • Completion and aftercare - thorough final inspection, instruction to the team and post-delivery guarantee
  • Maintenance - we remain available for service and maintenance even after completion
Transparency and open communication are essential here. Being actively involved at key milestones is important so that the end result fully matches expectations.
2
3

Project management & consultancy

Steering and certainty in every project

With INTOS, you get not just a builder but a partner who oversees the entire process. We combine advice with project efficiency, controlled and what goes according to plan.

Actually as early as possible, ideally as early as the first idea. It is precisely in the initial phase that we can make the most difference by helping to think about feasibility, budget optimisation and smart execution. But even if the project is already underway and there is a need for additional expertise, overview or independent advice, we can step in.

Whether it is a refurbishment, adaptation or complex design: we provide the connection between requirements, the end user and the executing parties so that everyone is on the same page.

Our project managers think along proactively, not just reactively. We not only monitor planning and budget but actively advise on sustainability, value engineering, prefabricated solutions and process optimisation.

We understand that every project is unique and look beyond drawings: we think about how users will soon work, what logistical challenges there are and how we can make the end result even better.

Our project managers are involved from the kick-off and ensure clear communication between client, end user, architect, consultants and contractors.

We speak the language of all parties - from technical specifications to user requirements and translate that into concrete agreements and actions. By steering proactively, identifying potential bottlenecks early on and keeping short lines of communication, we prevent miscommunication and delays.

We have already seen the result several times: a project that everyone supports and that runs smoothly.

Join the conversation

Do you have a
phase-out process?

Whether you are looking for help coordinating subcontractors or need a turnkey solution, INTOS is there for you. We realise projects from A to Z, with craftsmanship and attention to detail.

Maintenance is crucial, discover our services:
Maintenance

A project does not stop at completion. To keep an interior in optimal condition for a long time, maintenance is crucial.

We do this through:

Preventive
maintenance

Corrective
maintenance

Service
reports

For example, INTOS maintains 900 workstations four times a year at Schiphol and every month the custom furniture, pantries, sofas, call boxes and restaurants at Randstad.

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Clients and partners about INTOS
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We are
INTOSustainability

At INTOS, we realise complete interior design projects with an eye for quality, circularity and sustainable impact, anchored in our ESG policy.

 

We combine local production, reusable materials and smart processes to create interiors that are long-lasting, flexible and responsible. From circular BAS panels made from local grass to recycled materials, we build for future generations.

Playback
49 seconds
Sustainability
Question &
reply
Do you have questions about our working methods, planning or specific solutions?

Here you will find answers to the most frequently asked questions. Is your question not here?

Feel free to contact us.

Other questions?

As main contractor, INTOS ensures a seamless connection between customised interior and finishing.

Architects appreciate our precision and the ease with which custom-made furniture, ceilings and floors form a whole. Coordinating everything under one direction creates a consistent end result in which design and execution reinforce each other.

In short: INTOS makes the difference through total alignment, from concept to realisation. And that is visible in every project.

For Maincontracting At INTOS, the following certifications / quality & safety systems (also) apply, as listed on the ESG page:
  • VCA - specifically VCA ** (two stars). For main contractor work, INTOS only works with subcontractors who are also SCC-certified. 
  • Safety Culture Ladder (SCL) - INTOS is at Step 2 (SCL-2) and aims to reach Step 3 by 2025. 
  • ISO 9001 - part of the KAM management system. 
  • ISO 14001 - also part of the KAM system.
  • EcoVadis - sustainability score through EcoVadis is used as an ESG measure.
  • FSC® & PEFC - For responsible wood use/chain management.
  • GSES - also mentioned in INTOS' ESG policy. 
INTOS is not a design agency, but we do have a strong advisory role in the design process. We enjoy working together with (interior) architects and other designers and adjust where necessary on manufacturability, material choices, sustainability, budget and planning. Don't have an architect yet? Then we will be happy to help you find suitable partners from our network.

We focus on integral projects, where finishing is often an important part in combination with custom-made furniture. We always combine our finishing projects with at least one of our specialisms within INTOS, such as lab furnishing, medical environments, airport interiors or office environments. In this way, we keep the quality, planning and coherence of the project under optimum control.

Yes. INTOS can take on projects in a fully integrated manner. For electrical and mechanical installations, we cooperate with permanent, specialised installation partners. We remain the central point of contact and ensure coordination between construction, interior and installations, so that everything fits together seamlessly.

Other questions?

In this bird's-eye view video, you get a behind-the-scenes look at our Haarlem workshop and offices. You will see how our craftsmen, advanced machinery and smart processes come together to bring interiors for labs, hospitals, offices and airports to life.

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30+
years of experience
180
colleagues
6
sectors
Sectors:
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House of Delft: the art of maincontracting
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Construction project manager

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