Making a difference with predictive building control

Assets & property management

Project development & construction

Facility management & maintenance

Building occupants


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Better comfort

DeltaQ ensures a comfortable workspace environment by anticipating the weather and occupation forecasts and optimizing building controls automatically.

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Energy and emission savings

DeltaQ saves 10% to 40% of energy and CO2 emissions by continuously optimizing the steering of the energy systems.

Lower operational costs

DeltaQ reduces service interventions and fine-tuning of building controls, providing more time for meaningful maintenance.

Meetup? See it in action?

Feel free to contact us.



“The reality is that 90% of the buildings today will still be there in 2050” – CEO Khadija Nadi on WorkBold podcast

Our CEO, Khadija Nadi talked to Caleb Parker from the WorkBold podcast, on the challenges for real estate on the road to net zero, and what we, as a company, have learned from that. Interested to know more about DeltaQ’s insights in the market?


CEO Khadija Nadi winner of Inspiring50 Deeptech 2021!

Khadija is one of the 50 winners of Inspiring50 – Women in Deeptech awards 2021 (BeNeLux), shaping the future of tech. It is an initiative of AccelerateHER, striving to increase diversity in the tech industry. Congratulations to all the other incredible winning women!


“To create real impact, it is necessary to connect the latest state-of-the-art research from the public sector with the practitioners in the private sector.” – Meet Iago!

Iago is our new Building Control Expert! He has extensive knowledge of engineering, energy optimization, and building control through his studies and research in the field. What does he think of DeltaQ? “To create real impact, it is necessary to connect the latest state-of-the-art research from the public sector with the practitioners in the private sector. DeltaQ allows me to translate (most of) my research into real practice.” Iago’s expertise lies in the modeling and optimization of integrated building energy systems. Iago is the perfect addition to our growing team. Welcome, Iago!


DeltaQ is now holder of the International PropTech Innovation Label

DeltaQ received the International PropTech Innovation Label from PropTech Academy for its easy-to-implement, innovative technology to transform real estate into a more profitable and sustainable sector without compromising occupants’ comfort levels.


Meet DeltaQ at the biggest Belgium real estate summit: Realty on September 22 & 23 in Brussels

Belgium’s biggest real estate summit Realty is coming up on September 21 & 22 in Brussels. Learn more about smart and sustainable buildings As a prominent player in energy efficiency in buildings, DeltaQ is present at the event and we would love to meet up to talk about the challenges and solutions in real estate. We are already welcoming more than 1.150 registered visitors and look forward to meeting you!


Meet us and our technology at MIPIM Cannes on September, 7 & 8

DeltaQ is present at MIPIM in Cannes on September 7 and 8. This edition of this real estate conference focuses on People, Planet & Performance. DeltaQ’s solution significantly decreases the carbon footprint for buildings with predictive control of your HAC. If you’d like to meet us and our technology come find us for a cup of coffee!


Innovation, a driven and dynamic team, DeltaQ’s value for customers, and it’s good purpose for our world is what attracted me to work here – meet Axel!

We asked our new Sales Director Western Europe: Why work at DeltaQ? Axel: “At DeltaQ, I can combine fun and passion. The DeltaQ value for customers, innovation, a driven & dynamic team, and a good purpose for our world attracted me to work here”. Welcome, Axel. We are pleased to have you on our team!


I like the future-oriented purpose and the idea of being part of something that is being built up – meet Christine!

New to our operations team is Christine! Why did she choose DeltaQ as her new workplace? Christine: “I like the future-oriented purpose and the idea of being part of something that is being built up. The international background and dynamic of the people I spoke to appealed to me, as well as the modern and flexible work options provided.” Welcome to the team and we look forward to working with you!


Khadija Nadi talks about impact, diversity and trust on 50 koffies, #7 business podcast in Belgium

Khadija Nadi, CEO of DeltaQ, was a guest in the 50 koffies show of Nadia El Makhfi and Yana Smits. 50 koffies is a platform for bold people in business and the podcast is ranked #7 in Apple Podcasts about business in Belgium. You’ll hear what makes Khadija tick, what ‘making impact’ means to her, and how she integrates her values in business.


DeltaQ teams up with PropTech for Good to contribute positively to the SDGs together

DeltaQ is now a partner of the PropTech for Good alliance. Menno Lammers, founder of PropTech for Good: “We are pleased to welcome DeltaQ as a partner of PropTech for Good alliance, as they contribute in a positive way to the Sustainable Development Goals. Their vision goes beyond increasing comfort and saving significant energy/ CO2 in buildings, which appeals to us a lot.”


I love to contribute to DeltaQ’s noble, worthwhile, and realistic goal – meet Henricus!

We are happy to announce that Henricus Basien is our new full-stack developer! He loves to contribute to global CO2 reduction while at the same time doing something he loves: writing software. One of the things he loves about DeltaQ is our open and friendly team that instantly made him feel at home. Welcome, Henricus!


Business and sustainability go hand in hand

In June’s issue of VOKA Magazine, Khadija talks about opportunities for business models that combine growth with sustainability. She explains her journey towards becoming CEO, her motivation, and her enthusiasm for leading DeltaQ.


I am deeply concerned about climate change that will impact my children’s lives – meet Stephane!

Stephane: “I am deeply concerned about climate change that will impact my children’s lives. I tend to fight concerns with action. So I am seizing the opportunity to leverage my professional experience to help mitigate climate change. Secondly, I love transformations and disruptions. And lastly, I am passionate about leveraging technology for a purpose.”


Join Young VOKA Metropolitan’s online CEO Breakfast with Khadija Nadi

On May 6th at 8:30 you can join Khadija during an online breakfast session (in Dutch) organized by Young VOKA Metropolitan. She will talk about entrepreneurship and shares her insights and experiences with starting her own business. It is going to be an inspiring session! If you are a VOKA member and live in Brussels you can order a free breakfast box. 


Are you the Technical Project Manager we are looking for?

To meet our growth ambitions and especially the demand in Germany, we are looking for a passionate technical project manager. Do BACnet, Modbus, OPC, M-bus, and LonWorks have no secrets for you?


We are glad to announce our partnership with Engie Solutions

Together with our new partner Engie Solutions Belgium, we transform even more commercial buildings by optimizing their HVAC systems, resulting in 10 – 40 energy reduction. An important step in the energy transitions and towards achieving Belgium’s net-zero targets!


We are hiring a Commercial Assistant Back Office!

We are looking for an experienced and pro-active Commercial Assistant Back Office with excellent communication and prioritization skills, highly literate with great attention to detail, and the ability to work independently and as part of a team. Don’t hesitate and apply now!


Are you our CEO’s new Personal Assistant?

We are looking for an experienced and proactive PA for our CEO. You are an organizational talent with strong interpersonal, communication, and prioritization skills. We offer a full-time position in Brussels. You’ll be part of a dynamic, highly motivated team in a flexible work environment.


Diversity within a company is important to get better results – Khadija on VRT NWS show De Markt

On Friday, March 5th Khadija Nadi, CEO of DeltaQ, was a guest on the Belgian television show, De Markt, on VRT NWS. For the occasion of International Women’s Day Khadija, as a female leader of an emerging international tech company, was invited to talk about women at the top, the benefits of diversity and recruiting talent.


We are looking for a Senior Software Engineer

DeltaQ is looking for an ambitious and seasoned Software Engineer that is experienced in Python and is passionate about building a SaaS product that has a positive impact on climate change.


EarlyMetrics selects DeltaQ as 1 of 5 emerging tech stars to watch, led by female entrepreneurs

On the occasion of International Women’s Day EarlyMetrics selected five emerging tech companies led by female entrepreneurs. One of them is DeltaQ.


Having women at the top is part of the much broader context of diversity within a company – Khadija on Radio 1

Why are female leaders still a minority, is that a problem and what can we do about it? Because of this year’s International Womensday (March 8th), Khadija Nadi talks to Radio 1 (in Dutch) about having women at the top.


An interview with Khadija Nadi on Bloovi

On the 23rd of November 2020 Bloovi published an interview with our new CEO Khadija Nadi. Khadija talks about her reasons for leaving a big multinational to make real social impact through her career. She talks about her motivation to work with DeltaQ and why she believes in its cause.


Khadija in ZigZagHR Magazine

Khadija Nadi talked to ZigZagHR Magazine about some big societal issues, looking for silver linings within the crisis and she shares HR tips. The interview was published in December 2020.


Are you the Full Stack Developer we are looking for?

To grow this venture, we are looking for a talented Full Stack Developer / DevOps Engineer to support our team. The ideal candidate enjoys dealing with mission-critical systems, complex workflows, data analytics and cloud computing. Want to know more? Send an email to


Curious what the DeltaQ team does behind the scenes? Follow us on Instagram!

From now on you can follow DeltaQ behind the scenes on our Instagram account. Curious what we do during our lunchbreak or what a BMS or the DeltaQ gateway actually looks like? Follow us for our weekly updates!


New CEO Khadija and our investor Piet Colruyt had a chat with HP / De Tijd

The word is out: we are ready to tackle CO2-emissions in commercial buildings worldwide our new CEO and a capital increase from Piet Colruyt among others. HP / De Tijd had a chat with them and this interview was published today.


DeltaQ has a new CEO: meet Khadija Nadi!

As from today, new CEO Khadija Nadi will lead the company towards contributing significantly to worldwide sustainability targets.


We are hiring! Are you our new Project Manager?

Are you the dedicated project manager to support our team? Do you want to contribute to realizing the world’s ambition to fight climate change? Are you our second Jules Hammenecker? 😉 We are looking forward to meeting you!


DeltaQ on Holland Contech & Proptech podcast

DeltaQ is a proud member of Holland ConTech & PropTech and recently met with Wouter Truffino for a podcast interview. We discussed the impact of Corona on the Real Estate Business and how DeltaQ delivers added value to its clients even in times of (semi-)vacant office buildings.

(Interview in Dutch)

How it works

DeltaQ continuously optimizes your building controls, combining
forecast data and Artificial Intelligence to match user needs.



Our gateway brings your building data to the cloud.



Our software learns how your building and its users behave.



Our algorithms anticipate and optimize your building controls.

The Crescent


Aramis – Corporate Village


Canon HQ


The Lighthouse




Luminus Solutions


EY Gent






GC Europe HQ


Sodexo HQ




SODEXO Belgium


Plaine 15


9,732 m²



Key results

75% less comfort complaints

Gas savings of 1,285 MWh or 46% Electricity savings of 684 MWh or 25%

Total CO2 emission reduction of 586 ton or 32.5%

This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 822784

In June 2018, 3E received a 2.5 million EUR grant from the European Commission, thereby acknowledging DeltaQ as a potential key contributor to the EU’s climate and energy objectives.

The overall goal of the H2020 project is to rapidly accelerate the industrial maturity of DeltaQ, improving scalability and commercial readiness.

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Why people love DeltaQ