Our Experts
We are proud of our fantastic team and years of expertise in various fields
♦ Business consultant ♦ Management consultant ♦ Marketing consultant ♦ Financial consultant ♦ Strategy consultant ♦ IT consultant
♦ Operations consultant ♦ Supply chain consultant ♦ Healthcare consultant ♦ Environmental consultant ♦ Technology consultant
♦ Communications consultant ♦ Legal consultant ♦ Business strategy consultant ♦ Digital marketing consultant ♦ Customer experience consultant
♦ Product development consultant ♦ Negotiations consultant ♦ Purchasing & sourcing consultant ♦ CRM consultant ♦ Sales consultant
Dr. Tanja Hacker
CEO & Founder Retail Experts Group
Expert in procurement, category management, sustainability, and sales
Tanja successfully founded the Retail Experts Group and now oversees all global projects. With over 20 years of experience, she serves as a supervisory board member and advisor. Most recently, she was the Managing Director at Aldi, responsible for procurement, category management, pricing, quality assurance, and sustainability for over 2,200 stores and the online shop. As Vice President of Purchasing at Lidl, she focused on private label development, branding, marketing, POS activities, and sustainability. Additionally, she led Lidl’s international purchasing department across 29 countries, driving procurement management and the development of new business ideas and strategies.
Retail Experts Group is the leading retail management consulting providing tailored strategies to successfully position your company in the market
Mario Hummer
Expert in Purchasing Food, Non-Food Products and Sales
The top expert in the European retail and brand world. He supports and accompanies you with his expertise from the product idea through product and brand development to listing on the shelves.
As part of the international purchasing management team at ALDI SOUTH/HOFER for over 20 years, Mario was primarily responsible for a large purchasing team with over 100 employees and an annual purchasing volume of over €1bn.
Dr. Michael Robl
Expert in strategy, sales, negotiation, and go-to-market
Michael brings more than 28 years of experience in top management roles within leading companies in the consumer goods industry. Most recently, he spent 7 years as Managing Director for the CEE region, including Austria and Switzerland, at Henkel Beauty Care Retail. His main responsibilities included the efficient management and profitable growth of 21 countries and the expansion of market leadership. Previously, as Managing Director of the largest CEE market, Poland, he focused on local business operations and the implementation strength and quality of a large local team.
Tobias Clairmont
Expert in brand strategy, brand experience, and 360-degree communication
Tobias has been a strategist and consultant in the communications industry for 30 years. Over 20 of those years, he served as Managing Director and Partner at top German agencies like Tribal DDB and Grabarz XCT, one of Germany’s first specialized agencies for brand experience. Today, he runs his own company, focusing on brand experience.
Evgeni Gaydov
Expert in Strategic Planning, Sales, Logistic & Supply Chain
Evgeni Gaydov is an experienced business expert with over 25 years of leadership and operational management in the retail sector. His extensive experience includes various leadership roles in retail companies, one of which was serving as Chief Operating Officer and a member of the Management Board at Kaufland BG.
Tim Euler
Expert in Brand Building
Petra Simone Reindl
Expert in Finance, Controlling & Risk Management
Generalist with a clear results orientation, extensive experience in commercial positions at medium-sized companies. Swift identification of development opportunities, cost reductions, and system improvements. Further development of the strategic roadmap for the finance and controlling department. Analysis, decision-making, and implementation of strategic investments and M&A projects.
Klaus Schockmann
Expert in FMCG, Private Equity and M&A
Klaus has over 30 years of experience in the food sector (FMCG), including 12 years of leading a company in the Private Label FOOD sector.
Operational responsibility in various management cultures of global US corporations (Pepsi-Cola, Mars, Colgate-Palmolive) and medium-sized, family-owned German companies (Schwartauer Werke, Nordgetreide, CORVIS Green). Entrepreneurial mindset and working style with a clear focus on long-term value enhancement of the company. Excellent realization and implementation skills – „Execution Excellence“. Know-how in M&A in the organic food sector and start-ups (analyzed and evaluated more than 20 companies since 2017).
Thomas van Duinen
Expert in sourcing and projects directly in Asia
The Asian production and supply chain is his area of expertise, and he has shaped the ESG-compliant retail supply chains as we know them today. Thomas resides in Hong Kong, speaks the language fluently, and brings over 25 years of experience as a General Manager in various companies, specializing in both brand and private label. This gives us direct access to suppliers, allowing for cost-effective sourcing and significant savings for you.
Joseph Renz
Expert in fresh produce and procurement management
Joseph brings over 20 years of pan‑European fresh produce expertise—gained at top retailers like Edeka, Lidl, and Netto and honed through leading procurement teams in Germany, Sweden, and Spain, as well as overseeing sales and product development across Europe at a British‑American fruit company.
Victoria Neuhofer
Expert in sustainability & climate, innovation management, and startup consulting
Victoria is a serial entrepreneur. With her impressive background in executive management and broad range of experience, Victoria supports companies in developing and implementing sustainability strategies.
Bernhard Kloucek
Expert in franchise systems, expansion strategy for gastronomy and retail, and building lifestyle brands
As an inspiring entrepreneur, business consultant, and corporate trainer, Bernhard brings unparalleled expertise in sales, distribution, business positioning, strategy, franchising, and expansion. His journey, marked by extensive experience and a passion for transformative growth, has made him a sought-after authority in the industry.
Sonja Schuster
Expert in Brand & Communications, Customer Experience, and Market Research
Sonja brings nearly 20 years of experience from Telekom, where she held various roles. She spent over 10 years as the Head of Brand & Communications at congstar GmbH, managing all communication topics including ATL, BTL, online, and particularly retail marketing. Additionally, she spent 5 years at Telekom in the Innovation department, focusing on Virtual and Augmented Reality in Commercial Management.
Lena Weigele
Expert in Supply Chain & Logistics
As a former international manager in the field of supply chain and logistics, she also advises companies of all sizes in industries such as automotive, pharmaceuticals, packaging, FMCG, plastics processing, mechanical engineering, sanitary products, and (hotel) cosmetics on optimizing their global supply chain setup. Her expertise particularly lies in sustainability, strategy, and the establishment of distribution centers.
Thomas Lurz
Expert in e-commerce, brand management, marketplace, M&A, and startup growthcountries
Thomas Lurz – An HR expert with over 11 years of experience in retail. In his current role as Chief Human Resources Officer at s. Oliver Group, he brings extensive expertise in personnel management and organizational development. With degrees in social pedagogy and an MBA from the renowned WHU, Thomas Lurz strengthens HR strategies and promotes employee development at s. Oliver. Benefit from his in-depth knowledge and experience in the retail sector.
Markus Petzl
Expert in strategy, positioning, disruption, and transformation
Out in front is always where no one else is. Where traditional consulting firms with their rigid, linear structures, models, and experiences fail, Markus’s exponential work begins: he calls it „corporate disruption.“ This makes him one of the leading consultants for disruptive change in the German-speaking world.
Arnaud Monaco
Expert in F&B Strategy & Hospitality
Arnaud Monaco is a leading consultant in F&B strategy and hospitality transformation, known for his ability to turn venues into thriving, high-performing destinations. With a background in luxury real estate and hospitality, he has developed a data-driven and market-savvy approach to positioning restaurants, hotels, and entertainment spaces for long-term success.