Services
References
Rainer Angstl, Managing Director Sport Schuster
“OPCORE Partners played a key role in realigning our cross-category buying strategy. What impressed me most was the combination of deep subject-matter expertise, a strong understanding of the sporting goods retail sector, and data-driven solutions. The tools and methods introduced will continue to be used well beyond the project and will serve as valuable impulses for ongoing development within our organisation. The project outcome speaks for itself and will generate lasting value for our company.”
Anna Rusche, Buying Director Peek & Cloppenburg
“OPCORE supported me throughout my time as Chief Merchandising Officer at SportScheck through numerous strategic challenges. From analysing and preparing for supplier negotiations to evolving our category management, we were consistently guided with hands-on expertise, structured thinking, and a clear focus on results. Their consulting approach is highly customer-centric and geared toward delivering tangible impact and sustainable implementation by the operational teams.”
Tim Wirtz, Head of Enterprise Information Systems Fraunhofer
“Our collaboration with OPCORE Partners AG enables us to develop practical, AI-driven solutions for the retail sector that deliver real impact. Together, we are shaping the digital transformation of both retail and wholesale through tailored approaches.”
About Us
OPCORE Partners stands for trusted, partnership-based management consulting – tailored to business owners and senior executives looking to accelerate operational excellence, drive digital transformation, and unlock sustainable growth.
From our base in Zug, Switzerland, we support companies in redefining their operating model, unlocking growth levers, and implementing scalable, high-impact solutions – all rooted in efficiency, automation, and process optimisation.
Our Name Reflects Our Advisory Approach
OP – Operating Partner
We act as hands-on operating partners for decision-makers seeking to drive sustainable outcomes through smart governance, digital solutions, and targeted automation.
CORE – Focus on What Matters
Our work concentrates on optimising core business processes and systems – exactly where the strongest levers for profitability, efficiency, and value creation lie.
PARTNER – Collaboration at Eye Level
We empower organisations to take control, continuously improve, and create scalable competitive advantage through collaborative execution and capability-building.
Our Leadership Team
Dr. Johannes Wollenburg
Managing Partner, Co-Founder
Dr. Johannes Wollenburg heads the Operational Excellence division. With a background in both consulting and industrial line management, he has led international transformation projects across complex operational landscapes.
His mission: building clear structures, designing scalable processes, driving impactful process optimisation, and enabling control across the entire value chain.
Sebastian Dahm
Managing Partner, Co-Founder
Sebastian Dahm leads the Value Creation Strategy practice at OPCORE. He combines operational leadership experience from international retail organisations with deep expertise in restructuring consulting.
His mission: to identify value drivers, deliver measurable outcomes, and achieve sustainable value creation for owners and stakeholders – through a structured, execution-oriented advisory approach.
Stefan Wetzler
Managing Partner
Stefan Wetzler leads the Digital Business practice at OPCORE. In senior roles at Manor, LIDL Digital, the Ottogroup and Breuninger, he built and scaled digital business models – always with a strong focus on growth and efficiency.
His core areas: scalable e-commerce strategies, targeted marketing automation, and the integration of AI solutions to boost performance and enable sustainable digital value creation.
Strategic Partnerships for Measurable Results
Our network of partners enhances our consulting services with leading-edge technology, academic expertise, and data-driven solutions – enabling our clients to reach their goals faster and more sustainably.
Niccos – Shopify Development & E-Commerce Technology
Niccos stands for high-performance Shopify development and the technical realisation of complex e-commerce projects. Together, we enable faster time-to-market, scalable platform solutions, and significant revenue growth.
IFH Cologne – Market Insights & Data-Driven Decision Making
IFH Cologne provides in-depth market analysis and applied trend research for the retail and consumer goods sectors. Our collaboration creates reliable data-based foundations for digital go-to-market strategies.
Loyos BI – Business Intelligence & Real-Time Data Control
Loyos BI delivers modern business intelligence solutions that make real-time data actionable. Together, we drive transparency, improved control, and data-led performance steering for decision-makers in dynamic environments.
Fraunhofer IAIS / Science4Retail – Applied AI in Retail
In partnership with Fraunhofer IAIS and the Science4Retail initiative, we bring cutting-edge research and applied AI into real-world retail projects. Clients benefit from academically grounded digital transformation use cases along the entire value chain.
Contact Us
Reach out to us any way that is convenient for you.
We are happy to get in touch and have a discussion with no strings attached
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