Didier Defrère, GSD consulting

GSD consulting Your flexible Business Partner

  • Enterprising Trilingual Business Consultant (FRENCH – DUTCH – ENGLISH) with 20+ years of experience in Sales, Customer, Shopper & Trade Marketing
  • Proven ability to accelerate profitable growth, strengthen commercial performance and build successful, long-term customer relationships
  • Experienced in developing and implementing commercial strategies, turning business challenges and opportunities into concrete results
  • Strong focus on Sales & Commercial Excellence, connecting strategy, execution and people to deliver sustainable business impact
  • Passionate about developing people and high-performing teams, unlocking their full potential through leadership, coaching and empowerment
  • Experienced in leading change and driving agile transformation, mobilising teams and turning strategic ambition into action
  • Committed to creating sustainable economic and social value for businesses, customers and people
  • University Lecturer & Speaker in Sales Management and Leadership, combining academic insights with hands-on business experience
Our services Contact us

Our services Consultancy & Commercial Agency

Interim management

Experienced Sales & People Manager

Sales Management - Team Leadership - Negotiation - Trade Marketing - Field Management - Collaboration

  1. Pharma Market
    • Rx, Gx (A-Brand & Generic) and OTC / OTX
    • GPs, Specialists and KOLs
    • Medicines, OTC / OTX products, food supplements, medical devices and healthcare products
    • Pharmaceutical laboratories, wholesalers and distributors
    • Independent pharmacies, pharmacy groups and cooperatives
    • E-Commerce (Profitero) and Direct-to-Consumer (D2C)
    • Field Sales Management and Commercial Development
  2. Retail Market
    • FMCG / CPG
    • Food (Fresh / Ultra-Fresh) and Non-Food
    • At-Home and Out-of-Home
    • Hypermarkets, Supermarkets, Hard & Soft Discounters and Convenience Stores
    • E-Commerce and Pure Players
    • International Buying Groups
    • Customer Management, Negotiation and Trade Marketing

Project management

Commercial Excellence & Sales Transformation

  • Process Review and New Process Definition
  • Sales Capabilities Assessment
  • Sell-Out Strategy and Incentive Programs
  • Sales & Product Mix Management
  • Sales Team Reorganization and New Organizational Structure Design
  • Recruitment Support and Candidate Profile Assessment (Pre- and Post-Hiring)
  • Sales Force Productivity, Motivation and Bonus Scheme Design
  • Route-to-Market Strategy and Model Definition
  • Gross-to-Net (GtN) Model
  • Cost-to-Serve Analysis and Client Service Model Definition
  • Commercial Forecasting and Forecast Accuracy Improvement
  • Pricing Strategy and Model
  • Commercial Budgeting Model
  • Tender Strategy and Management
  • Growth Hacking and Commercial Growth Initiatives
  • Sales Distribution Expansion
  • CRM Implementation, Optimization and Master User Expertise
  • Commercial Excellence

Business development and market entry

Your contact person to develop commercial activities in the BeNeLux

Benelux map

Speaker and lecturer

  • Lecturer in Business School
  • Speaker and CPG expert for Consulting/Investing firms
  • External advisor for Arthur D. Little, McKinsey & Company and Bain & Company

Our references They trusted us

  • Logo Astel Medica
  • Logo Danone
  • Logo Johnson & Johnson
  • Logo GSK
  • Logo Haleon
  • Logo Kenvue
  • Logo Pepsico
  • Logo Sanofi
  • Logo Nutricia
  • Logo ULiège
  • Logo HEC Liège
  • Logo Mondelēz International
  • Logo Opella
  • Logo STADA
  • Logo EG STADA Group