# Clients and testimonials: who I work with > Michael Sinnhuber has worked with more than 150 companies and over 500 people: in public speaking coaching, workshops and keynotes, and through his agency MCPREZI in presentation development. His clients include voestalpine, Henkel, REWE, Porsche Austria, the Austrian Health Insurance Fund (ÖGK), the City of Vienna, Salzburg AG, SunExpress and the Hofburg Vienna. This page shows a selection of these companies and what clients say about working with him. - URL: https://michaelsinnhuber.com/en/clients/ - Language: en - Last updated: 2026-10-22 - Author: Michael Sinnhuber - Deutsch: https://michaelsinnhuber.com/kunden/ > More than 150 companies. Over 500 people. **And no two talks were the same.** > > From startup pitches to board presentations: behind every logo are people who had something important to say. ## Companies I have worked with A selection from coaching, workshops and keynotes, and from more than 14 years of presentation development with MCPREZI. For presentation projects and examples, see the [MCPREZI client page](https://mcprezi.com/kunden/) (in German). voestalpine · Henkel · BILLA · Pago · DAIKIN · Berndorf Band Group · Land Niederösterreich · Österreichische Gesundheitskasse · Porsche Austria · REWE · Böhler Edelstahl · Bilfinger · Stadt Wien · Hamburg Marketing · Latvia Travel · Berner · Ottakringer · Ingram Micro · European Handball Federation · Bundesministerium für Europa, Integration und Äußeres · Hofburg Vienna · Wilo · Helvetia · Bank Austria Finanzservice · Greiner Group · magdas · Herba Chemosan · SunExpress · s Versicherung · viadonau · TPA · Linda Apotheken · Österreichisches Rotes Kreuz Niederösterreich · DDB Tribal Hamburg · Bank Austria · Salzburg AG · tekom Österreich · Nationalparkregion Hohe Tauern · KABEG LKH Villach · Österreichische Ärztekammer · i+R · Newrest Wagons-Lits · Gold & Silber Schweiz AG · Fahnen-Gärtner · Eventery · Ärztekammer für Wien · PORREAL · feibra · Markel · waff · Jeff Hunter · Constantia Flexibles · N-ERGIE · ROSAM · IMBA · farmlifes · agromed · ENITED Business Events · B&M Tricon · Keller Sports · AssetMetrix ## What clients say > “Throughout our work together, Mr Sinnhuber kept trying to break old thought patterns and find new approaches. […] Thanks to the intensive collaboration and the way he involved us, we took away a great deal and it has stuck in our thinking!” > — Dr. Josef Obergantschnig, Chief Investment Officer, Security KAG (translated from German) > “I have used Mr Sinnhuber's coaching several times. […] He works extremely professionally, takes the time to understand what the client needs and delivers a perfect result. I'll gladly work with him again.” > — Ulrike Kittinger, CEO, Unser Ö-Bonus Club, REWE International (translated from German) > “Professional, empathetic and effective in reaching our goals!” > — Mag. Alexandra Aglas, Strategic Partner, G+F Music Management GmbH (translated from German) > “Professional from start to finish. Highly recommended.” > — Mag. Ivo Franschitz, CEO, ENITED Business Events GmbH (translated from German) > “Great collaboration and a compelling result!” > — Anna Sophia Lahner, Junior Marketing Manager, AssetMetrix GmbH (translated from German) > “Thank you […] above all for your time and patience! Thanks to your constructive feedback and your positive manner, I have more faith in myself again and will keep working on my presentation skills.” > — Michaela P., Coaching client from the tourism industry (translated from German) ## From global companies to startups My clients range from international corporations such as voestalpine, Henkel and Ingram Micro, through public-sector organisations such as the City of Vienna and the State of Lower Austria, to startups and individuals preparing for the most important talk of their careers. **What they all have in common: they didn't just want to look good, they wanted to win people over.** I have spoken at the E-Day of the Austrian Economic Chamber, at the inno x network and at the Digital Didactics congress, among others. You'll find all my talks on the [keynotes page](https://michaelsinnhuber.com/en/workshops-talks/keynotes/). ## Key facts - **People:** over 500 - **Companies:** over 150 - **Presentations:** over 1,000 with [MCPREZI](https://mcprezi.com/en/) - **Experience:** since 2012 ## Your coach I'm Michael Sinnhuber, public speaking coach, speaker and author of [“3, 2, 1… Reden ist jetzt Deins”](https://michaelsinnhuber.com/en/book/). Whether it's a global company, a startup or an individual, I prepare people for the moments when they need to win others over. [More about me](https://michaelsinnhuber.com/en/about/) ## Frequently asked questions ### Which companies has Michael Sinnhuber worked with? More than 150, including voestalpine, Henkel, REWE, BILLA, Porsche Austria, DAIKIN, Ingram Micro, Bank Austria, Helvetia, Salzburg AG, Greiner Group, Böhler Edelstahl, SunExpress and the Hofburg Vienna. Public-sector clients and associations include the Austrian Health Insurance Fund (ÖGK), the City of Vienna, the State of Lower Austria, the Austrian Federal Ministry for European and International Affairs and the European Handball Federation. ### Do you only work with large companies? No. I work just as often with individuals, the self-employed and startups, for example before a pitch, a job interview or an important speech. [Public speaking coaching](https://michaelsinnhuber.com/en/public-speaking-coaching/) is for you personally, the [team workshop](https://michaelsinnhuber.com/en/workshops-talks/team-workshop/) is for your company. ### Is working with you confidential? Yes, always. Discretion is fundamental to the way I work: what we discuss stays between us, without exception. The same applies to any documents, figures and internal information we work with. ## When is your next big talk? Tell me what's coming up in a short, free intro call. We'll work out what you need, which format will get you there and whether we're a good fit. - [Book a free call](https://michaelsinnhuber.com/en/free-call/) - [Packages & pricing](https://michaelsinnhuber.com/en/pricing/)