2025: a strong year for Haskoning despite challenging market
Healthy growth and margins across our leading markets
2025 was a strong year for Haskoning, with healthy growth and margins across our leading markets such as aviation, maritime, tunnels and bridges, water technology and data centres. Market conditions were challenging in renewable energy and offshore wind, yet we still delivered a solid overall result.

Marije continues: ”In 2025, we launched the Haskoning Innovation & Education Fund to finance scientific research and education. The first donation was made to Delft University of Technology for multi‑year research into bacteria capable of breaking down PFAS, pesticides and microplastics. Each year, 12.5% of net profit will be allocated to the fund. In addition, we increased profit sharing with employees to 40% of net profit, up from 33%.”
Through digital technology, Haskoning helped clients develop sustainable solutions to complex challenges. This included the development of a data‑ and AI‑driven model for the Dutch Central Government Real Estate Agency (RVB) and the Central Agency for the Reception of Asylum Seekers (COA), assessing the feasibility of transforming hundreds of vacant buildings into accommodation and housing for focus groups.
Haskoning also strengthened its maritime position through the acquisition of Scottish consultancy Arch Henderson, to better serve maritime clients in the North Sea region and beyond.
Furthermore, the company shortened its name to Haskoning, a step that was positively received by clients and employees and supports its international positioning.
Haskoning continued to invest in employee development, transparent reward structures and inspiring, sustainable workplaces, including the new office on the TU Delft Campus in the Netherlands. Employee engagement reached 84%, the highest score to date. Despite a tight labour market, the workforce grew by over 3%. The proportion of female employees increased further to 30%. The number of nationalities represented rose from 84 to 90.
Key figures
| (in € million, unless stated otherwise) | 2025 | 2024 |
|---|---|---|
| Net turnover | 883 | 810 |
| Added value | 723 | 669 |
| Operating result (EBITA recurring) | 61,0 | 60,1 |
| Operating margin before profit sharing | 12.3% | 13.2% |
| Operating margin | 8.4% | 9.0% |
| Net profit | 33.6 | 41.0 |
| Free cash flow | 5.3 | 15.7 |
EBITA recurring = EBITA excluding restructuring and other one-off costs/revenues
Operating margin = EBITA recurring / Added value * 100%
The company closed the year in a financially healthy position, with a solvency ratio of 52% (2024: 50%). Free cash flow amounted to €5.3 million positive, influenced by one-off investments in the Delft office, ICT and the acquisition of Arch Henderson.
Sustainability performance
|
|
2025 | 2024 |
|---|---|---|
| Number of employees incl. flexible shell (at year-end) | 6,796 | 6,610 |
| Employee engagement (%) | 84 | 83 |
| Female employees (%) | 30 | 29 |
| Scope 1 emissions (in tonnes CO2-eq) | 708 | 697 |
| Scope 2 emissions (in tonnes CO2-eq) | 89 | 121 |
| Scope 3 emissions (in tonnes CO2-eq) | 9,643 | 12,140 |
| CO2-footprint per employee (in tonnes CO2-eq) | 1.76 | 2.26 |
| Projects assessed for sustainability | 3,895 | 2,403 |
Scope 1: Direct greenhouse gas emissions that occur from sources that are owned or controlled.
Scope 2: Indirect greenhouse gas emissions that occur from generation of purchased electricity and heat.
Scope 3: Indirect greenhouse gas emissions that occur in upstream and downstream activities, such as public transport and flying.
In 2025, Haskoning assessed 3,895 projects for sustainability (2024: 2,403), representing 77% of total turnover (2024: 65%). These assessments often formed the basis for discussions with clients on more sustainable solutions.
The CO₂ footprint per employee decreased by 22% to 1.76 tonnes CO₂‑eq. EcoVadis, an authority in the field of sustainability assessments, once again awarded Haskoning a Platinum medal, the highest possible recognition.
Outlook for 2026
Marije Hulshof: “We started 2026 with a healthy order book of €365 million and a strong pipeline of projects. At the same time, uncertainty in several markets, particularly industry and energy, and geopolitical tensions remain – like in the Middle East where we are also located. Nevertheless, we are well positioned to continue growing and to deliver healthy profitability in 2026, supported by the increasing use of AI in our processes and projects. The acquisition of Portwise earlier this year enables us to make ports around the world smarter, more efficient and more sustainable.”
In 2026, Haskoning starts implementing its new strategy Empowering Excellence 2030, building on the successful completion of the Stronger25 strategy. The focus remains on growth and healthy profitability in leading markets, supported by data‑ and AI‑driven consultancy, design and engineering, delivering sustainable solutions for clients and society.
Project highlights 2025

The modernisation of the weirs in the River Meuse
Rijkswaterstaat has awarded the final award for the Planning Phase of the Renewal Task of the seven weirs in the Meuse to the Stuwkracht Maas consortium. Haskoning and Witteveen+Bos form the leading combination in this consortium.

Faster delivery of defence real estate
Together with the Ministry of Defence, the Central Government Real Estate Agency (RVB) and other market parties, Haskoning will work for faster, more and better defence real estate and thus contribute to the security of the Netherlands. The reason is the changed security situation in the world and the goal of the Ministry of Defence to be ready faster and better.

First tunnel section of the Scheldt tunnel successfully immersed
With the arrival of the renovated Antwerp Ring Road, traffic there will flow much better in the future. Engineers from Haskoning and many partners have been working for years on an advanced motorway that is largely being built underground and under the Belgian Scheldt.

New Vietnam data centre meets demands of AI technologies
A new data centre on the outskirts of Hanoi is among the first in Vietnam equipped to handle next-generation high-density Artificial Intelligence (AI) racks while meeting global standards. Adaptations were made in the design phase to respond to the demands that AI technologies are placing on digital infrastructure in Vietnam.

Major sewage treatment contract for Metropolitan São Paulo
We will provide our Nereda® wastewater purification technology for SABESP’s Parque Novo Mundo wastewater treatment plant (WWTP), in São Paulo, Brazil. This project is part of the Integra Tietê project which aims to transform water quality in the Tietê River and its tributaries.

Haskoning to deliver EIA for Gwynt Glas
Haskoning to lead EIA for one of the largest proposed floating offshore wind installations in the world. Gwynt Glas is expected to contribute up to 1.5GW of clean energy to the Celtic Sea’s first development round of 4.5GW.
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