WE GET YOUR PROJECT AFLOAT
With years of experience and strategic partners worldwide, we guide you from concept to realization, making your floating project successful.
BLUE21
EXPERTS ON FLOATING
Blue21 is the world’s leading company providing design, engineering and consultancy in realizing floating urban and maritime projects. With our expertise in floating innovations and building strategic partnership worldwide, we are dedicated to solving the grand challenges of the 21st century: rising sea levels, climate change and urbanization. We are ready to guide you from concept to realization for your sustainable floating project. Together let’s create circular and resilient living spaces for billions.
WHY ON THE WATER
Water offers infinite opportunities. It is the key to economic progress and offers
immense potential for implementing innovative solutions.
1. MORE SPACE
Two-thirds of the global population will live in cities by 2050, and most cities struggle to build and expand. New space can be created with floating structures on the water, which covers 70% of our planet.
2. LESS CO2 EMISSIONS
Floating requires less building materials than land reclamation, and offers diverse applications. With floating algae farms, CO2 in the air and nutrients in wastewater can be captured and turned into biofuels.
3. CLIMATE RESILIENCE
Building on the water offers us the capacity to cope with rising sea levels, flooding and other climate hazards such as earthquakes and tsunamis. Water provides a safer living environment to land.
OUR CLIENTS
Blue21 receives requests from all over the world by clients in both the public and private sector to deliver our unique floating urban development expertise, experience and solutions.
























OUR FLOATING PROJECTS
Discover how we are building sustainable living environments worldwide.
We help realize your dreams
From picture to project
With our extensive experience and expert network of partners, we have the knowledge and expertise to guide you through the entire development process of your floating project. For each step we combine our in-house expertise and work with reliable partners. Take a look at the comprehensive overview of Our Services through the floating project development value chain. Realize my dream>
OUR SERVICES
We are a global knowledge leader for the design, technology and realization of climate resilient floating projects in delta cities world-wide. Tap into our Knowledge Base to view our state-of-the-art research findings on floating development.
2. DESIGN
Detailed Studies
Design Developments
Implementation Plan
3. ENGINEER
Maritime Engineering
Civil Engineering
System Integration
4. BUILD & ENJOY
Construction
Project Management
Commisioning
WE’RE DATA DRIVEN
We use the cutting-edge toolkit HydroMEC+ inhouse, and the advanced aquatic drones Indymo for our research and implementation of floating projects. By simulations and leveraging scientific data, we ensure optimal results for our clients.
HYDROMEC+
We have integrated the revolutionary power of HydroMEC+, the world’s pioneering design and simulation toolkit for evaluating floating urban development in challenging maritime conditions. With the use of our HydroMEC+ toolkit we transform your project into a resounding success. Find out more about HydroMEC+.
INDYMO
The cutting-edge Indymo aquatic drones are equipped to efficiently gather crucial underwater imagery, collect precise water samples, and gather comprehensive data on water quality and ecology. Indymo has an exceptional sensor and camera mobility, and offers an unparalleled 3D perspective for in-depth analysis of water bodies. Find out more about Indymo.
HOW WE WORK
Get to know your journey and the steps we take through the value chain of floating project development
Step 1
RESEARCH & INITIATE
Location matters. We start off by investigating the environmental characteristics of your project location, conducting feasibility studies and helping you shape your strategic vision and business case. We are proactive in our approach and we help build strategic partnerships that will help you gather support needed for your project.
Step 2
DESIGN & 3D VISUALISATION
A picture is worth a thousand words. We help tell the story of your project. Unlike other architecture studios which hitch-hike on the floating city hype and make nice renders, Blue21 integrates knowledge from various disciplines. We make plans and designs that are not only aesthetically pleasing, but also technically feasible. We are bold and creative, visionary and very practical.
Step 3
ENGINEERING
We have a unique team of engineers covering different domains: maritime, civil, hydraulic, and industrial. We simulate to make sure that your floating structure is well engineered to cope with local wave conditions. We ensure that state-of-the- art building technologies can be applied and utilities well integrated. We help you develop manufacturing and production strategy, taking you step-by-step to scale up.
Step 4
BUILD & ENJOY
We supervise the construction process to make sure that your floating project does not get messed up by unexperienced companies. We guide partners from the start of construction through to completion; facilitating collaboration and providing assistance on environmental monitoring and maintenance guidance. All you need to do is to get ready and embrace your floating project when it is completed!

WHAT ABOUT YOUR PROJECT?
We support our clients whenever and wherever they need us for their projects. Get in touch now for a consultation.
TESTIMONIALS
Hear what our clients think about us and why they want to work with us.
“Blue21’s global network, clients, and involvement in cutting-edge research and innovative projects make them a truly unique and inspiring partner.”
“Their proactive approach, inquisitive mindset, and remarkable ability to engage and collaborate with others have been invaluable in expanding the horizons of Shimizu Corporation’s floating business.”
Akane Takahashi
“Blue21’s engineering knowledge has increased our confidence”
“Blue21’s engineering knowledge has increased our confidence to tackle the unknows when dealing with floating structures.“
Jaap Peters
Project manager – Engineering Office
City of Rotterdam
“We chose Blue21 because of their design approach to floating projects.”
“We chose Blue21 as a partner for Innozowa because of their vision, imagination, structured and integrated design approach to floating projects. We are builders!”
Johan Bakker
Former Innovation director – Waterschap Rivierenland
“Their experiences and knowledge are highly valuable Dutch know-how.“
“B21 is one of the top leading Dutch experts in floating urban development. Their experiences and knowledge are highly valuable Dutch know-how and can contribute to shaping a more climate resilient and adaptive future for all.“
Arnoud Molenaar
Chief Resilience Officer – Municipality of Rotterdam & Affiliated Lead Cities at Global Centre on Adaptation
OUR MISSION
With every project we contribute to our mission: realize floating cities with a positive impact on the planet. Through this we believe we can solve the biggest challenges of the 21st century: land scarcity, urban growth and climate change.
“Around the world people are seeing how they need to redefine their relationship with water. Floating solutions can make cities more resilient and create new ecosystems at the same time. It is part of the innovative Dutch delta technology ‘toolkit’ which can contribute to tackling many climate and urban challenges our world is and will be facing.”
Rutger de Graaf | Co-founder Blue21
THE FLOATING TEAM
Within our team, a unique collaboration has been established between architects, urban designers, water managers, civil engineers and maritime engineers. Our experts have a strong academic background (MSc/PhD) and have graduated from world leading universities. Do you want work at Blue21? Check out our vacancies & internships >
LATEST NEWS


Floating breakwaters for a more resilient Curaçao coastline

Floating Breakwaters for coastal erosion control in Curaçao

Innovation Cubes Showcase Delft’s ‘Just Do It’ Mindset

Season’s Greetings for the Holiday Period

Belize city floating boardwalk project

Blue21 Announces Internship Opportunity in Coastal Engineering

Bluelands and OPPY International Win Franco-Dutch Business Award

Blue21 at Smart City Expo World Congress


Blue21 at the Het Waterbouwdispuut Symposium

A Floating Boardwalk for Belize City

Blue21 on the Constructive Voices Podcast


Concept to reality: Navigating the path to floating success

Celebrating 10 Years of Blue21


🎄✨ Merry Christmas & Happy New Year from Blue21!


Blue21 at the World Conference on Floating Solutions 2024

Bridging Borders, Floating Solutions: Blue21’s Global Innovation Journey

Arnoud Molenaar Joins Square Floating City as Global Director

Transform Your Floating Dream Into Reality with Our Guidance

Inauguration Party of the Extension of our Floating Office

HydroMEC+ Revolutionizing maritime engineering


Living Space Alternatives

Living and Working in Water Districts

VRTMax episode “A City on Water”


Shimizu Corporation’s Inspiring Visit

World Conference on Floating Solutions 2023

How deep is the first home of Bluelands? Let’s find out

Rui Gomes giving a guest lecture on floating at TU Delft

World Ocean Day

Researchers from South Korea visiting Blue21
Environmental Day 2023

Hydraulic Symposium 2023

Blue21 joins the 2nd Community of Practice on floating solar

Resilience, Disaster Mitigation, and Infrastructure (RMI) Week 2023

Meet our Innovator | Rutger de Graaf-van Dinther Blue21


Blue21 cofounder, Rutger de Graaf, speaking at JMSE Webinar 2023

We have a new vacancy

Blue21 team wishes you Merry Christmas & Happy New Year

Blue21 cofounder, Rutger de Graaf, invited to speak in Hong

Two young engineers joining Blue21 team



Blue21 involved in the £1.7 billion Blue Eden project for Swansea

Finest Floating unlocking the power of partnership in innovation

Blue21 young talent Dorette Regout graduated last October

Is wonen op het water het antwoord op de stijgende zeespiegel?



Blue21 co-founder presented at SIWW2021

Blue21 co-founder interviewed by de Volkskrant

Proceedings of PtW-WCFS2020 is now available

INNOZOWA illustrated in PostNL stamp



Blue21 floating pavilion is moving

Another vacancy: commercial leadership wanted!

Floating island planned in the Baltic Sea region


Blue21 interviewed by Dutch Vastgoedmarkt

Blue21 partners with 1000 Cities Adapt Now Global Program

NPO features Space@Sea demonstrator


Floating Pavilion featured in CAS summit promotional video


Climate Resilient Urban Areas: Available now

Blue21 features in Netherlands Water Partnership article

PtW-WCFS2020 Video Announcement

Technical, comfort and safety requirements of Living@Sea

Blue21 researcher presents graduation report on floating breakwaters

Living at Sea Business Case Report

Conceptualization and Design Exploration of Living@Sea Report

Blue21 presents at SHIFT! Business Festival

Completion of Space@Sea Demonstrator


Blue21 Co-organizes Paving the Waves Conference

Blue21 presents at PropTech for Good’s Decade of Action

Blue21 joins the Netherlands Water Partnership


Paving the Waves Early bird Registration Extension

Blue21 featured in Shimizu Corporation Monthly Magazine

INNOZOWA video feature

Launch of new Blue Revolution Foundation Website

Blue21 releases new video for World Water Day

Paving the Waves Conference Call for Abstracts Closing Soon!

Blue21 featured in Vastgoed Journaal

Peter Ros appointed as Non-executive Board Member Blue21

Paving the Waves – Abstract Submission Extension

World Ocean Council sponsors Paving the Waves Conference

Buxeros Capital: new investment in Blue21

Blue21 attends World Urban Forum 10

Paving-the-Waves-Register-Now

Save the date!! “Paving the Waves” is happening in 2020!

An airport at sea becoming more viable

Blue21 presents at Fly Seaport

“Floating Cities Are No Longer Science Fiction”- Part 2

“Floating Cities Are No Longer Science Fiction”- Part 1


Floating cities exhibition at WUHO gallery in LA

Blue21 presenting at symposium: “2050 Looking Back” in Rotterdam

Built artificial islands to take off

Floating Schiphol is good for everyone, even the fish

Check out the Sea Sights Festival

Present at ‘Water Science for Impact

UN will have a floating office

New floating projects in Europe


Blue21 present at Volvo Ocean Race Finish

Opportunities for coastal cities

Blue21 presents at Blue Forum in Rotterdam

Floating development in the North Sea?


Netherlands: Newly created consortium to develop floating PV
Our vision for 2018

THE OCEAN AS A SOLUTION FOR HUMAN & ECOLOGICAL PROGRESS

Blue21 proud team member of INNOZOWA


Blue21 attending Sustainable Ocean Summit 2017 in Halifax, Canada











































































