Our vision is to support an equitable, and inclusive workforce, marketplace, and society. Inclusiveness is embedded throughout our culture and we see people and experiences as fuel for creativity and innovation that make us better as a team and ultimately help us deliver better results. We remain invested in engaging, retaining, and backing our women colleagues and offer programs, benefits and flexibility that support holistic well-being.
We consistently invest in programs, benefits and resources to ensure all colleagues have the backing they need to be and deliver their best, reflected in our rankings in many top-tier employer-of-choice lists. We see Women in Data® as a key partner in increasing our representation of women within data roles while we work to create the world’s best travel experience for our clients.
Over the next five years, Amex GBT sees the UK data landscape evolving from a focus on big data to a focus on intelligent, actionable insights. The challenge is no longer just about collecting large volumes of data – it’s about layering intelligence on top of that data to deliver real-time, contextual recommendations. We’re moving toward systems that don’t just report what happened but guide what to do next. By integrating AI and Machine Learning into our data platforms, we aim to proactively surface insights – whether that’s identifying cost-saving opportunities, optimizing travel programs, or enabling more sustainable choices. These intelligent layers help travel managers and business leaders make faster, smarter decisions.
At the same time, we anticipate a shift toward greater data democratization and responsibility. As tools become more user-friendly, data-driven decision-making will no longer be limited to analysts; instead, everyone – from travel managers to travelers themselves – will be empowered to act on insights. This democratization, paired with a growing emphasis on ethical data practices, means privacy, transparency, and governance will play an even bigger role. At Amex GBT, we’re committed to building trusted, intuitive data experiences that meet these evolving expectations – turning complex datasets into clear, meaningful action for our clients.
American Express Global Business Travel (GBT) is the world’s leading B2B travel platform, providing software and services to manage travel, expenses, and meetings & events for companies of all sizes.
100+ years in business travel
1.5B investment in technology
95% Client retention
22K Corporate customers
We have built the most valuable marketplace in travel with the most comprehensive and competitive content. A choice of solutions brought to you through a strong combination of technology and people, delivering the best experiences, proven at scale. With travel professionals and business partners in more than 140 countries, our solutions deliver savings, flexibility, and service from a brand our customers can trust – Amex GBT.
Visit amexglobalbusinesstravel.com for more information about Amex GBT.
Ellen Forrest
Ellen is a Director of Data Science at Amex GBT Group and leads a global team focused on embedding AI and advanced analytics into products to create an intelligence layer on top of the data, so that actionable recommendations can be automatically shared with the relevant audiences.
With a Masters degree in Physics, Ellen is passionate about representation within data roles, and about the benefits that diversity and inclusion can bring to data teams and their outputs. This is particularly important in the world of AI, where having a diverse set of minds working on an AI problem is a key requirement in order to eliminate bias in models created.
Outside of work Ellen loves to travel with her family, and whilst at home enjoys a variety of hobbies including netball, painting and learning Japanese.
Severine Louis
Severine is Director of Product Analytics and Experimentation at AmexGBT Group, leading a global team that powers product decision-making through data, performance metrics, and experimentation science.
With 19 years in data and analytics and a Master’s in Finance and Controlling, she’s passionate about turning insights into action and building tools that bring user behavior and customer feedback to the heart of product strategy. She’s known for her authentic leadership and commitment to inclusive, data-driven cultures.
Outside of work, Severine enjoys family time, marathons, and ultra trail running.
Véronique Royer
Linkedin: Véronique Royer
Véronique is a Senior Manager, Product at Amex GBT, focusing on AI & Machine Learning initiatives. With 15 years of experience in Product management, she is deeply passionate about building impactful products and sharing her knowledge by teaching Product Management to students in her free time.
Véronique holds a Master’s degree from a business school and had the opportunity to study in several countries, including the UK and Finland. She began her career at Michelin, where she learned the core foundations of product craft.
In her free time, Véronique enjoys walking – she gets around almost exclusively on foot in Paris – and often spends her holidays hiking in nature. She’s volunteer in an animal protection association, and practices both yoga and strength training. Like many in the travel industry, she has a strong passion for discovering new countries and cultures. A lasting influence from her time at Michelin: a deep appreciation for good food and a constant curiosity for new restaurants to try.
Riham Mansri
Riham is a Machine Learning Engineer at Amex GBT, where she focuses on developing AI solutions and ML models to solve for different use cases. With 3 years of experience in the field, Riham is dedicated to advancing machine learning technologies and applying them to solve real-world problems.
Riham holds a Master’s degree in Data Science and another in Engineering, which has equipped her with a foundation in both the theoretical and practical aspects of machine learning. Riham’s academic journey has brought her to France to finish her masters degree enriching her perspective and expertise.
In her spare time, Riham enjoys watching movies and has also developed an interest in F1 in the last couple of years. Thanks to her time at Amex GBT and to her colleagues, she has also started bouldering.
Kolette Hysong
Kolette has had an impressive 27-year career at American Express Global Business Travel. As the Director of Enterprise Data Platform and Analytic Capabilities, she has been instrumental in aligning data platform strategies with broader business objectives.
She successfully manages the operational aspects of the enterprise data platform while implementing a strategic approach to ensure data consistency, robust security, and rigorous compliance. She enjoys promoting collaborative relationships across multiple teams to meet complex business needs. She takes pride in overseeing the development of innovative solutions, working closely with product teams, data scientists, and key stakeholders to drive analytical projects to completion. As a champion of diversity and talent, Kolette leads a dynamic global team of 42% women, embodying her commitment to inclusive leadership and empowering data innovators.
Outside of work, she dedicates her time to her family and supporting their diverse array of activities. Her approach to life reflects her belief in nurturing both professional excellence and personal fulfillment as the ultimate mom taxi and cheerleader.
Grace is a Manager of Global Revenue Management at Amex GBT, where she leads a dedicated team focused on delivering data-driven insights for a pivotal growth initiative within the hotel sector.
She collaborates with various teams across the business to revenue-size initiatives and measure their effectiveness.With a degree in Mathematics and 15 years experience in analytical roles, Grace is passionate about leveraging data to drive revenue growth. Her colleagues recognise her for her enthusiastic and collaborative approach to teamwork.
In her spare time, Grace enjoys spending quality time with her family, as well as baking and flower arranging.
Grace Marshall
Grace is a Manager of Global Revenue Management at Amex GBT, where she leads a dedicated team focused on delivering data-driven insights for a pivotal growth initiative within the hotel sector.
She collaborates with various teams across the business to revenue-size initiatives and measure their effectiveness.With a degree in Mathematics and 15 years experience in analytical roles, Grace is passionate about leveraging data to drive revenue growth. Her colleagues recognise her for her enthusiastic and collaborative approach to teamwork.
In her spare time, Grace enjoys spending quality time with her family, as well as baking and flower arranging.
