The Giarte story

Get to know us

The Giarte story 

For over 15 years, Giarte has been a leading research and consultancy agency for IT experiences. We work with technology companies, public organizations, and large corporations, around the world. We make actionable what counts in business IT: customer satisfaction, user experience, and trust.

Founders of XLA

Giarte is the founder of the innovative Xperience Level Agreement. XLA is a powerful addition to the traditional IT Service Level Agreement (SLA). One that builds on the SLA concept by measuring human sentiment and using this to break down silos and think and act from the perspective of a user.

IT Xperience Monitor

In the Netherlands, we are well known for the IT Xperience Monitor: the annual, independent comparison of customer satisfaction in outsourcing. Customers of over 40 service providers participate in this extensive audit. The IT Xperience monitor (ITX) is a valuable benchmark and trend report in the Dutch IT market. View all results of the ITX Monitor and participating IT providers on the ITX website.

Our Solutions

Everyone in IT should master the art of a perfect experience. That’s why we help organizations change their business in several ways. 

Meet us

We’re a team of technologists, scientists, strategists, and supporters. Creative problem-solvers seeking to make a positive impact on your business and the world around us.

Marco Gianotten


Favorite saying: “Do or do not. There’s no try.” Sharp. Disruptive. Pioneer of the Experience Revolution. Likes to speak at home and abroad. Pushes change into overdrive with compelling arguments to act.

Karel Helsen

Chief Operating Officer

Favorite saying: “Discipline is the bridge between goals and accomplishment.” Gives direction to Giarte's growth. Led several large companies. Knows like nobody else what is really going on in the business.

Marthijn Brouwer

Head of Customer Success - Strategy Consultant

Favorite saying: “To infinity and beyond.” Marthijn is our human octopus, juggling our training and consulting offerings. He makes the impossible possible. His mission is to develop and grow XLA as a skillset. He is the master of teambuilding and radiates positive energy.

Linda van 't Klooster

Head of Research

Favorite saying: “Difficult roads lead to beautiful destinations.” Responsible for Giarte's Insights branch. Combines her years of research experience and broad background in the IT market for actionable insights for continuous improvement.

Zoi Manesi

Research Specialist

Favorite saying: “Talent wins games, but teamwork and intelligence win championships. Let’s work together!” Zoi’s PhD in psychology gives her an extraordinary sense of perspective when it comes to what makes people tick when interacting with IT. Our key person in methodology and actionable insights.

Anke van de Kerkhof

Senior Strategy Consultant

Favorite saying: “We are all in the gutter but some of us are looking at the stars.” Anke is our Curly Consultant. She has a background in ITSM and is devoted to improving the user and employee experience. She is connecting the dots in tech and touch. She works with our clients to embrace XLA. While keeping her curls on fleek.

Peter-Coen Koppert

Delivery Manager

Favorite saying: “Embrace uncertainty.” Full-time IT aficionado, part-time hippie; Peter-Coen is all about the balance. He flourishes by positivity and is a sucker for teambuilding. He gains energy when he creates order in chaos. When he can transfer this energy and structure to his clients, his day has been a successful one. He thinks 'outside the box’ but cannot say this without gagging.

Rinia Verschoor

Office Manager

Favorite saying: “Who run the world? GIRLS!” Rinia is our raging rocket. Engaging passionately with our clients and co-workers to make sure our office is a happy-place. She is our Jackelyn of all trades: finding an answer to all of your questions.

Aileen Oosterling


Favorite saying: “If it doesn’t challenge you, it doesn’t change you.” Aileen is our Excel Fetishist, mastering the art of spreadsheets. She is part of the ITX research team, focusing on customer experience. Besides researching and analyzing data, she prepares presentations. Preferably in Excel. Obviously.

Sarah Rouwendal

Digital Marketer

Favorite saying: “How you make others feel about themselves, says a lot about you.” Sarah is our little power lady. She is extremely goal minded and thrives by planning and organizing. She combines a hands on mentality and structure with hospitality. As long as a company has capacity and quality, she blends it quite easily into a plan.

Misha Weber

Favorite saying: "No llores porque ya se terminó, sonríe porque sucedió.” (Don’t cry because it’s over, smile because it happened). Misha has traveled through almost every country in Latin America. His experience abroad has helped him to develop the ability to connect with people from varied backgrounds quite easily. His main goal is to improve the connection with clients as much as possible in order to make them feel like they’re not treated as a number but as individuals.

Justin Mensah

Junior Consultant

Favorite saying: “Hard work pays off.” Probably the best-dressed office tiger there is. A star when it comes to connecting the dots in a complex analytical consulting engagement. He always takes initiative so there is a pretty fair chance the task is already done before the client notices anything has to be done. Very easy to talk to.

Ahmad Baniyassien


Favorite saying: “In God we trust, all others bring data.” Ahmad is our fulltime data geek. He was born in Jordan, studied in Germany and is now our unsung hero in data science. He is obsessed by learning new things. He loves challenging himself both as a professional and as a puzzler.

Yaser Norouzzadeh

Data Scientist

Favorite saying: “Do good and good will come to you". Yaser designs and builds our brand-new data platforms. He speaks English, Farsi and Arabic and understands dangerously more Dutch than he likes to admit. Yaser's favorite movie is Inception since it is as confusing and mesmerizing as data can be.

Hannah van der Vegt


Favorite saying: “Not all those who wander are lost.” Hannah is our disarming pirate, wordsmithing our content (blogs, books, trainings, podcasts, and customer cases). She likes stepping on to uncharted territory exploring the unknown with her can-do attitude. To her, it all boils down to finding hidden treasure maps.

Rob Herings

Xperience Management Trainer

Favorite saying: "Education is the most powerful weapon we can use to change the world". Rob is our tech & train sensei. He has trained both CEO's and Interns, in about every country you can imagine: South-Africa, India, Iceland, the USA, Japan, Australia, the United Arab Emirates. To name a few. He is what we call a real Globetrotter. Besides training, his true passion lies with outdoor climbing and exploring mountains.

Cansu Bas

Business Intelligence Specialist

Favorite saying: "Simplicity is the ultimate sophistication". Cansu is our Computer Whizzard. Her degree in mathematical engineering fits her daily work as a data analyst. It also makes her a badass. Besides crazy computing skills, she masters the art of cooking, silversmithing, and playing bass. Used to love the idea of ‘walking in the rain’ until she moved to the Netherlands.

Teresa Morins

Business Intelligence Specialist

Favorite saying: "Beauty may be dangerous but intelligence is lethal". Dexterous with data. Ingenious with climate science. Inventive when it comes to designing. When she is not constructing dashboards, she designs and fabricates her own furniture. To her, data reads like a novel: numbers are unknown and chaotic in the beginning but change into familiar characters once you figure out the story behind them.


Our Flow Houthavens building is designed to get you and your people into the flow state – that mental space where you do your best work. It’s a different kind of office. There are places to network, disconnect and reconnect.

Our building

There is a rooftop venue to host events as stimulating as the views; a laidback lobby lounge with a kitchen for guest chefs: for sharing cooking and entertaining experiences; and a backdrop of stunningly graphic LED walls.

The Flow state of mind

Daylight, outdoor decks, climate ceilings, and responsive intelligent systems add comfort. Unlike other office buildings, Flow understands that you need to relax to get the best results. Embrace the flow and watch your business flourish.

Giarte HQ

The Flow – 5th floor
Moermanskkade 620
1013 BC Amsterdam
The Netherlands

Call us: +31 20 622 3444
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