Our team

Robert Baufeld

Robert started his career at horizoom as a Junior Software Engineer. After ten years in the catering industry and five years as a freelance musician, he discovered programming for himself. With his great enthusiasm for learning new things, he decided to change careers and went into web development. Robert is interested in frontend topics and dreams at night of a world without error messages. In his spare time, he continues to compose music and his favourite way to relax is to spend time with his daughter and wife in the garden.

Lorin Hussein

Lorin is a working student in the Business Intelligence department. After studying computer science at TU Berlin with a focus on data analysis and machine learning, she is continuing her master’s degree and supporting the team in data-driven projects. Her focus is on analysing data and creating meaningful visualisations that facilitate informed decisions. In her free time, Lorin is involved in youth work, enjoys cooking and spending time with friends on cosy game nights or joint excursions.

Rahel Bonhommet

Rahel leitet neben People & Culture auch die kaufmännischen Abteilungen der horizoom vom Firmensitz in Berlin aus. Mit über 20-jähriger Erfahrung in der Medien- und Online-Panel-Branche, war sie unter anderem schon bei der Gründung der Berliner GapFish GmbH mit dabei. Die diplomierte Fremdsprachenkorrespondentin und Mutter zweier Kinder lebt eine Kultur des Zusammenhaltes und der Fürsorge, sieht sich als People & Culture-Botschafterin und sagt „In the end it’s simple, it’s all about the people!“. In ihrer Freizeit kocht Rahel gerne mit Familie & Freunden, verbringt Zeit im Gym und tanzt durch die Clubs ihrer Stadt!

Lena Leuschner

After studying business administration/market and communication research, Lena worked as a senior project manager at respondi AG for twelve years. She joined horizoom in October 2024 as Senior Research & Operations Manager. She takes on sample only and full service projects and accompanies the projects from survey programming to field control and data delivery. A keen runner, she always surprises her husband and two sons with healthy baking experiments. She also enjoys travelling, especially to the coast of northern Germany or Scandinavia.

Daniela Höllerbauer

Daniela has been working in market research since 2010. As former Managing Director of Whitebox GmbH, she has spent years working intensively on customer and employee satisfaction in the field of mystery shopping and online market research. As a management consultant for CXM, she now helps organisations to focus on outstanding customer service and long-term customer relationships and horizoom to expand its customer base and brand awareness in Austria. She is the point of contact between Austrian customers and the operations team. She lives with her husband and 2 children in Gallneukirchen/Linz. She enjoys spending her free time in nature and is also an enthusiastic music lover and dancer.

Martin Ziller

Martin agiert in seiner Position als Senior Operations Manager als Projektmanager und Kundenansprechpartner für alle Fragen rund um die Projektdurchführung. Eingangs diplomierter Ingenieur, begann er bereits 2012, sich für die Online-Marktforschung zu begeistern und ist diesem Tätigkeitsfeld bis heute treu geblieben. Wann immer er die Zeit findet, genießt er das Klavierspielen oder Radfahren an der Elbe.

Louisa Kölzer-Bätzing

Louisa is responsible for the project management of “Sample-Only” and “Sample+Services” projects at horizoom, i.e. projects that require questionnaire programming, for example. For this purpose, she was able to gain relevant experience over 7.5 years in a full-service institute, but also with other online field service providers such as respondi, GapFish and Cint. Her desire to work in market research became apparent even before graduation through various internships in this work environment. When she is not spending her free time with friends in Cologne, she enjoys discovering new cities around the world with her husband.

Marta Bojkovska-Langer

Marta handles the project implementation of quantitative market research studies from A to Z. As a career changer in the industry, she is curious and open to new tasks and topics even after 10 years of professional experience, while her expertise lies in complex and innovative projects. She is a team player who enjoys taking on wide-ranging responsibilities in the field of operations. In her free time, she loves to take trips to Brandenburg and around the world with her husband and twins. She enjoys cooking international specialties for her friends, listening to the current top charts or doing hula-hoop.

Regula Anhuth

Regula bringt über 10 Jahre Berufserfahrung als CRM-Manager DACH in einem führenden Marktforschungsunternehmen mit. Nach ihrer Tätigkeit im Vertrieb&Brandmanagement in der Textilbranche ist der qualitative Kunden-Service zu ihrem Fachgebiet geworden. Regula lebt und schätzt eine abteilungsübergreifende und lösungsorientierte Arbeitsweise und Verbindlichkeit, nachhaltige Beziehungen liegen ihr am Herzen. Als Schweizerin und Mutter zweier Teenager lebt sie seit 2007 glücklich verheiratet in Berlin. Sie kocht gerne mit Gästen nach Jamie Oliver, hält sich mit Zumba fit, hört Hip-Hop & Soul und erkundet mit Freunden gerne Berlin bei Nacht & Tag.

Peter Gaal

As Account Manager at horizoom, Peter looks after existing customers, strengthens customer relationships and supports new customer business. Peter has many years of experience in online market research. His previous positions include GMI, Lightspeed & Kantar. Most recently, Peter gained experience at Cint in the area of panel platform and DIY solutions. In addition to home and family, Peter spends his free time going to concerts and BBQ evenings with friends.

Mathis König

As a software engineer and former CTO at an agency, Mathis has spent nine years helping to implement projects at every level. Following the call for new adventures, he no longer devotes himself to video on demand and FinTech, but to market research. Whether it’s team culture, scalability, quality or chic animations, he’s washed in many different waters. When he’s not breathing code, he’s spending time with his wife and young daughter, riding his scooter through Hamburg to the nearest bouldering hall or recording a podcast.

Tessa Mora

Tessa joins the horizoom team as Marketing Manager. She brings over ten years of marketing experience to the team – and, above all, a great passion for bringing people, brands and good ideas together. Teamwork on an equal footing is particularly important to her: working together rather than against each other, openly, clearly and with enjoyment. In her view, this is how the best results are achieved. In her free time, Tessa enjoys jogging or spending time with her family, her son and the family dog, Momo. She also lives with a tarantula – an unusual housemate that doesn’t make all visitors smile.

Vincent Quantmeyer

Vincent is responsible for all aspects of AI and machine learning at horizoom, for example fraud detection or better prediction of survey responses. His career to date has taken him to London, the Netherlands and most recently back to his home city of Berlin. When there are no ML models to train, he likes to spend his time playing board games, eating vegan croissants and walking in the woods. On good days, he also thinks about going jogging again tomorrow.

Eva-Maria Schulz

Eva ist bei horizoom für die intelligente Verknüpfung und Analyse von Daten zuständig. Nach dem Abschluss ihres Wirtschaftsmathe- und Statistikstudiums, stieß sie 2017 zum Team der GapFish GmbH und bringt daraus ihr tiefes Verständnis für Prozesse und Paneldaten mit. Mit ihrer Begeisterung für nachhaltige Panelentwicklung und der Generierung smarter Insights unterstützt sie das Team gezielt bei Entscheidungen. Neben ihrer Liebe für Statistiken und Details ist Eva in der Freizeit gern musikalisch und kreativ unterwegs, spielt Querflöte in einer Band und liebt Bastelarbeiten aller Art.

Jakob Majoor

As Senior Account & Partner Manager, Jakob is responsible for the support of existing customers and contact person for solutions in the field of automated (in-house) sampling and panel partnerships. After working for Research Now, SSI and Dynata, he gained extensive experience as Senior Revenue Operations Manager at quantilope GmbH in the areas of panel platform, DIY & DIT sampling and was responsible for purchasing panel services. In his private life, he is interested in technology/smart homes and tries (unsuccessfully) to convince his wife that the latest technology gadgets are really necessary.

Dogteam Cologne

Dogteam Cologne is characterized by the fact that it is larger than the human team. Labrador Poppy is the youngest of a whole home office pack, could home office be nicer?! But office days are Rita’s favorite days, she doesn’t miss any of them. Every colleague is duly greeted. During work, the poodle moves from place to place and regularly reminds everyone to loosen their hands, preferably behind Rita’s ears or on her belly.

Mark Wolff

For Mark, everything revolves around customer care, further development of customer relationships and the acquisition of new customers. The graduate economist has already been in the panel business since 2017 and was able to gain valuable industry experience with leading providers such as GapFish GmbH and the Cint Group. With enthusiasm and passion for customer contact and individual solutions, he is always looking forward to new challenges. Mark lives in Berlin with his partner and three children. In his free time, he enjoys going to the gym, hiking or even running a marathon.

Rubén Cabrerizo

Rubén studied sociology and has more than ten years of experience in running quantitative studies in social and market research. Throughout his career, he has worked on various projects, which has given him a comprehensive view of the research process – from conceptualisation to data analysis. At horizoom, he supports all phases of research projects and adapts his well thought-out and flexible approach to the individual needs of clients. In his spare time, he is an avid tennis player and a passionate music lover: he sings in several choirs and enjoys both teamwork and artistic expression.

Jonas Möller

After his studies, Jonas worked in different companies and got a lot of experience in software engineering as well as more specifically in data engineering. He supports the team with his knowledge in architecture of distributed systems and agile working. When he is not programming on the computer, he likes to play video games after work. Apart from that in his free time, you will find him climbing high walls or mountain peaks.

Leonard Mach

At horizoom, Leo provides support for everything you need for the design, technical implementation and data preparation of online studies. After several years in project management at respondi and previous positions in science, he is enthusiastic about the empirical background of online studies and the future of innovative, digital opinion research, whether using active or passive data, hybrid or classically generated interviews. Otherwise, you can find him either in the kitchen, trying out the latest recipes, or on the dance floor with salsa or discofox.

Lennart Girrbach

Lennart has been a Product Owner at horizoom in Cologne since July 2025. In his role, he is responsible for the development of the panel platform, supports partners in the implementation of customised solutions and ensures that product ideas are implemented in a meaningful way. Previously, he was responsible for the DACH webshops at Dyson with a focus on UX and conversion optimisation. What he particularly likes about his role is bringing together technical requirements and human needs. In his free time, Lennart enjoys making music, working on creative projects, getting out into nature and relaxing with a game of chess. He is communicative, curious and always on the lookout for good ideas that also work in practice.

Dog Crew Berlin

Panda represents the Berlin dog crew. She is one of the most experienced office dogs and knows how to get the attention of her colleagues. It is now widely known that office dogs increase productivity and reduce stress. To make workdays as pleasant as possible, Panda gets plenty of support from Havanese lady Millie, poodle girl Banja and our latest Berlin addition: Doris. The crew is especially easy to get excited about our company parties, most of all if they are happening in the office garden! #peoplefirst #dogssecond

Belinda Endres

As Senior Account Manager, Belinda takes care of existing customers, strengthens customer relationships and works in a hybrid role, in which she also takes on project management for some projects. Belinda has held various positions at Cint over the last 10 years and has gained valuable experience. In her spare time, she enjoys dancing and singing with her young daughter around the house and garden, meeting up with friends and going for long walks. You can also find Belinda on the ¼ mile race tracks from spring to fall.

Lara Howe

Lara’s journey in market research began over 9 years ago as an intern at respondi, most recently working as a Senior Project Manager for Bilendi&respondi. During this time, she gained extensive knowledge in survey programming, survey management and data processing. In the project management team at horizoom, she is looking forward to working closely with a dedicated team, realising customer ideas and driving the company’s goals forward. In her private life, Lara enjoys clearing her head by swimming laps, jogging at the nearby lake and e-biking. She likes to spend her time off with her husband and son in the countryside or in the garden.

Philipp Schöngarth

Philipp loves to optimize business processes of any kind. He has been working in the industry since 2016 and has extensive experience as the former Head of Operations at GapFish GmbH. At horizoom, he primarily takes care of the continuous development of our external as well as internal products, always keeping the big picture in mind. In his private life, he likes to do something with friends, play video games or roam through nature with his camera. Occasionally, he even meets his wife and dog.

Tobias Hoffmann

During his social science studies, Tobias was particularly enthusiastic about empirical studies and opened the door to online market research. He has been working in the industry as an operational employee since 2019 and was able to gain a wealth of experience at GapFish GmbH and Talk Online Panel. As Senior Operations Manager at horizoom, he will primarily conduct quantitative studies and successfully complete even the most challenging projects with his high level of problem-solving skills. Privately, he enjoys practicing videography, playing drums in a band, getting into the fantasy valley top world and spending a lot of time with his girlfriend and friends.

Jonathan Heinemann

Jonathan ist seit 2011 in der Online-Marktforschung tätig, zunächst bei der respondi AG und zuletzt als VP Business Development&Sales der Berliner Gapfish GmbH, die 2021 von der Cint Group übernommen wurde. Er verantwortet bei horizoom die Bereiche Vertrieb, Operations & Marketing, den Produktbereich Sample&Service und den Standort Köln. Der diplomierte Betriebswirt und verheiratete Vater zweier Kinder ist zudem ehrenamtliches Mitglied im Regionalrat des BVM für die Regionalgruppe Köln-Bonn. Privat begeistert er sich für Sport, Labrador-Retriever und alles, was einen Motor hat.

Ricarda Lebing-Assaad

After finishing her commercial training, Ricarda moved from Stralsund to the German capital in 1997, where she worked in the accounting department of a large retail company for several years. After the birth of her first child, she switched to the market research industry in 2009. For almost 15 years now, including jobs at panelbiz, GapFish and Cint, she has been a passionate member of the horizoom team as an accountant. She is particularly fond of tricky accounting problems. In her private time, she has discovered traveling and spends a lot of time playing soccer with her second son. But her favorite place to go is the Ostsee, to relax with her family – her old home.

Anne Jährling

Anne is part of the Cologne team and has been working in the industry since 2018, most recently at GapFish GmbH. As Senior Sales Manager, she primarily looks after customers, but also makes it her mission to maintain the team spirit in Cologne and give new colleagues a fantastic start. After work, she enjoys hanging out with friends and is up for any kind of fun. You can also find her at the DIY store, in the park with dwarf poodle Rita and at her home on the Baltic Sea.

Rachid Coubadja

Rachid is a panel manager at horizoom. After graduating in International Technical Communication, he first worked as a translator. He has been working in the market research industry since 2017 and most recently worked for Gapfish GmbH and the Cint Group as a Customer Success Executive. In his free time, he goes on outings with family and friends and spends time in the garden. He also enjoys watching and playing soccer, goes jogging, and frequently works out at the gym.

Sabrina Altmann

Sabrina focuses on building long-term partnerships at eye level, including innovative business ideas. After dedicating herself academically to market research during her doctorate in marketing, she has now been active in the panel industry for three years. At horizoom, she is looking forward to cross-departmental collaboration in order to provide customers and partners with solution-oriented advice and to develop further together. Born in the Rhineland, she has lived in Berlin for over 10 years and can be found in her free time walking with her family or cooking with friends.

Gebhard Wöstemeyer

Gebhard ist Senior Software Engineer bei horizoom. Er ist seit 10 Jahren in der Marktforschung tätig und arbeitete zuletzt bei der Gapfish GmbH und der Cint Group. Als echter Allrounder in Sachen Technik kümmert er sich bei uns um alles von Rails Anwendungen über Kubernetes Cluster bis hin zu unseren Data Engineering Pipelines. Seine Freizeit verbringt er am liebsten im Garten mit seiner Frau und seinen zwei Kindern.

Kateryna Kvasniak

Driven by curiosity, Kateryna enjoys understanding how things work by breaking them down into small pieces. As a backend developer at horizoom, she is passionate about creating clean and thoughtful code. Originally from Ukraine, she brings an international perspective and a desire to keep learning. She values careful planning, whether it’s planning the logic of a feature before coding or structuring her day to stay focused and productive. In her free time, she likes exploring human behavior through psychology books and finds inspiration while traveling to new places.

Thomas Karstens

Thomas ist als CPTO verantwortlich für die Bereiche Tech und Product. Seit über 10 Jahren beschäftigt er sich mit dem Aufbau und der Entwicklung von Online-Panels und leitete zuletzt mehrere Entwicklerteams bei der Cint Group. Thomas hat einen Master in Computer Science von der Technischen Universität Berlin, ist verheiratet und hat eine Tochter und einen Hund. Neben der Architektur von verteilten Systemen interessiert er sich insbesondere für den Aufbau von Teams und Teamkultur. In seiner Freizeit hängt er meistens an der Kletterwand, mal mit Seil, mal ohne.

Malte Freksa

Unser Chief Innovation Officer und Co-Founder Malte verbindet leidenschaftlich anspruchsvolle Forschung mit neuester Technologie. Als Produkt&Sales-Schnittstelle ist er für unsere Partner Panel und Data Solutions verantwortlich. Zuletzt war er Chief Digital Officer bei der GapFish GmbH und davor als Marktforscher für Agenturen und Institute tätig. Er hält Vorträge auf (inter)nationalen Konferenzen und ist BVM-Referent für “Digitale Transformation der Marktforschung”. Der diplomierte Psychologe lebt mit seiner Frau und zwei Kindern in Berlin. Wenn er nicht arbeitet, ist er mit Familie und Freunden in der Natur, beim Sport oder entspannt sich schachspielend beim Lesen.