About CWS Workwear

Hartmut Engler

Chief Executive Officer

Hartmut Engler joined CWS Workwear as Chief Executive Officer in March 2021. In June 2023, he was also appointed as Treasurer of ETSA, the European Textile Services Association. Hartmut Engler looks back on more than 25 years of professional experience in the service sector. During his career, he held several management positions at OTIS, the global market leader of elevators and escalators, and was Chairman of the Management Board of OTIS Germany until 2014. In 2014, he was also Vice President at UTC Gebäude- and Industriesysteme. After two years as a member of the Executive Board at Dussmann AG & Co. KGaA, Hartmut Engler joined Gegenbauer Holding SE & Co.KG, a leading national facility and management company, as a member of the Executive Board and Chief Digital Officer. Hartmut Engler holds a Master’s degree in mechanical engineering from the Technical University of Berlin and has an Executive MBA from the University of Bradford.

Denis Spiegel 

Chief Financial Officer

Denis Spiegel joined CWS Workwear as Finance Director / CFO in April 2019. Under his responsibility, CWS Workwear has a proven track record to increase profitability significantly and to deliver on budget KPI targets. Denis brings more than 20 years of professional experience in private equity and stock-listed companies. Denis is a team-oriented CFO and has managed mid-size (Mittelstand) companies in the areas of finance & accounting, FP&A, controlling, costing & pricing incl. product calculation, net working capital management, treasury, tax and payroll. He is familiar with various industries such as textile services (5 years at Haniel / CWS), construction and project-business (14 years Bilfinger), food services and distribution manufacturing (3 years Franke). 

Axel Schulten

Chief People Officer

Axel is the Chief People Officer of CWS Workwear. Having been a part of the CWS and Haniel universe since 2013, he has worked in several international leadership functions within the Human Resources area. He has developed and executed HR strategies that leveraged internal standardisation of HR tools, processes and systems to ensure growth ambitions and market differentiation. At CWS Workwear, his mission is to drive cultural transformation to create a great an open workplace environment geared towards high performance and entrepreneurship with a state-of-the-art workforce and HR processes that meet best-in-class benchmarks.

Henning Siemens

Chief Business Process Officer

As Chief Business Process Officer, Henning is responsible for architecting and implementing our CWS Workwear blueprint, incl. the harmonisation of processes across all our countries, enhancing and automising processes in IT systems and designing a data-driven reference model. Before moving to his new role, which he has since beginning of 2024, Henning spent his professional career in numerous positions at CWS. From joining CWS in 2005 as Project Manager Key Account Management, to Lead Business Development, Regional Manager Operations, and eventually being responsible for the CWS Workwear Germany, Austria and Switzerland region as Regional Managing Director from January 2020 to December 2024.

Claudia Kärcher

Chief Transformation Officer

As Chief Transformation Officer, Claudia Kärcher is responsible for the strategic development of CWS Workwear, providing targeted impulses and direction for transformation and sustainable growth. In her role, she leads our Strategy, Continuous Improvement (CI), QESH, Sustainability/Responsibility, and Corporate Communications teams. Claudia aligns strategic initiatives with the needs of our customers and our business objectives, defines clear priorities and common goals, and drives the implementation of our Value Creation Plan with all stakeholders. Together with her teams, Claudia ensures that CWS Workwear remains competitive even in a dynamic market environment.

Before joining CWS Workwear, Claudia worked at Ayvens (formerly LeasePlan / ALD Automotive) as Strategy & Transformation Director and was part of the German management team. Prior to that, she was Senior Project Manager at Roland Berger, where she led international projects for customers from various industries.

Oliver Mäske

Chief Operating Officer

In his role as Chief Operating Officer, Oliver is responsible for enhancing productivity in various areas across CWS Workwear, including laundries, warehouses, and set-up centers. A significant part of his duties involves increasing the level of automation to optimise work processes and boost efficiency. Oliver is also heavily involved in change management and transition processes. He develops strategies to successfully implement new technologies and work methods, facilitating CWS Workwear’s adaptation to evolving market conditions. He drives continuous improvement and fosters a culture of innovation and excellence. With his commitment to excellence and passion for innovation, Oliver ensures that the company stays at the forefront and continues to grow. Before joining CWS Workwear, Oliver spent his professional career at DYWIDAG-Systems International (DSI), United Technologies Building & Industrial Systems, and almost a decade at OTIS.

Marius Keller

Regional Managing Director (RMD) BeNeLux, Sweden, Ireland

Marius Keller joined CWS Workwear in January 2023. Before taking on the role as Regional Managing Director (RMD) for our BeNeLux, Sweden and Ireland regions, he was responsible for driving CWS Workwear’s strategy & transformation journey. As RMD, Marius aligns our Northwest regions with our overarching CWS Workwear strategy. Together with his teams such as Sales, Customer Care and Service, he continues to promote value creation and best practices, ensuring a best-in-class customer experience and meeting the customers’ needs.

Before joining CWS Workwear, Marius was Senior Investment Manager at Franz Haniel & Cie. GmbH and responsible for portfolio management and M&A transactions, among others. He also brings extensive experience from his former roles at Roland Berger, where he was leading projects in regard to strategy development, portfolio review, strategic transformation and reorganisation.

Carsten Best

Regional Managing Director DACH & CWS Healthcare

Carsten is heading our CWS Workwear business in Germany, Austria and Switzerland (DACH) as the Regional Managing Director (RMD). In his regions, he is responsible for all our Operations (laundries, service depots) sites, Sales (Hunting and Farming), Service, and Customer Care, among others. Carsten is building on the strong fundament we have in DACH and sets a strong focus on our customers. With clearly distributed responsibilities and Excellence Functions reporting to Carsten, he is continuing our way towards continuous improvement and supporting competences within the CWS Workwear organisation. Apart from his duties as CWS Workwear RMD DACH, he is also responsible for the CWS Healthcare business, a CWS Workwear company. CWS Healthcare is a leading service provider for hygienic and safe textile solutions for care facilities, fire brigades and rescue services in Germany. Carsten has a strong track record in his working field and was previously employed at companies like Rentokil Initial, ISS and Berendsen. 

Dejan Buhovac

Regional Managing Director Central and Eastern Europe  

Dejan heads our business in Central and Eastern Europe (CEE) since October 2024. In his regions, he is responsible for Sales, Service, and Customer Care, among others. Dejan joined CWS Workwear in 2021 and since then has celebrated many successes in his managing regions together with his teams. He was managing our businesses in Slovenia and Croatia before taking over responsibility for the whole CEE region.  Dejan is an experienced manager and team leader with many years of professional experience in various areas. He started his career at Gorenje, a leading European home appliance manufacturer, where he was part of both the technical and investment department. He was also leading the technical department at the City Hotel in Ljubljana and spent several years at OTIS Elevators where he was responsible for Slovenia as Managing Director and later as Regional Managing Director for the Balkan regions.