With MJB Consultancy Services, I offer high quality consultancy and interim management services to support SMEs or multinationals in their strategic and operational growth. I have more than 38 years of international experience with the multinational company 3M, where I performed various sales, marketing and managerial functions. I have been active in various markets and businesses, with responsibility for P&L; operational and strategic business development. I have led numerous successful transformations and growth projects, including complex mergers, change management processes and product innovations. My leadership style is customer-centric, with focus on team resilience and inclusiveness.
Areas of expertise:
Interim Management
Leading Sales & Marketing organizations.
Project management (including certified Black Belt in Six Sigma, experience integrating organizations and businesses.
Transformation and change management.
Consultancy
Strategic business guidance
Solution-oriented consulting for organizations, processes and customer relationships.
Coaching and mentoring for executives and for sales and marketing teams.
Available for board mandates (advisory or executive). Completed Board certificate at Board Company in December 2024.
Proven track record
During my years at 3M, I managed various projects and businesses in a local, regional or EMEA context.
A few examples (you can find more details my linkedIn profile www.linkedin.com/in/marleen-boleyn-379b12b
As local and regional leader of the Health care business, I reshaped the team from a product focus to a market focus. Working closely with HR partner. Thanks to a small acquisition of surgical procedure trays/kits, the local business grew more than double digit.
I managed several Black Belt Six Sigma projects, with internal and external focus, including a project to improve sales efficiency for a division of Omega Pharma (reduce the admin time and increase number of customer visits). And was caoching and mentoring Green Belts.
I was leading integration of 3 divisions into 1 for the West Europe area , which laid the foundation for increased sales efficiency, marketing focus and profitable growth
For Personal Protective Equipment (PPE), as PMO I led the integration of 'Scott Safety', with improved sales and margin immediately after the first year of acquisition, supporting the harmonization of the portfolio and streamlined teams: Manufacturing, Quality, Supply Chain, Sales, Marketing, HR, Finance and Legal.
In my last position as sales director for PPE in the Central Europe region, I reformed the team to a clearly defined structure between general sales accounts, key accounts and channel/distribution accounts. My last major project that I supported as champion, was the divestiture of medical disposable respirators to a distribution partner, after 3M Health Care became Solventum.
Why choose MJB Consultancy Services?
With my experience and knowledge in different sectors, markets, and business areas, I can help your company (SME or multinational) turn your challenges into growth opportunities. Whether implementing strategic plans or guiding transformations, I deliver practical solutions with a focus on short and/or long-term results and sustainable growth.

MJB Consultancy Services - Marleen Boleyn
E-mail: mboleyn@mjbconsultancy.be
Telephone: +32 471 535304
LinkedIn url: www.linkedin.com/in/marleen-boleyn-379b12b