Our Customers. Our Approach. One Team.

MAD4. Make a difference

Our combined experience is gained over many years of delivering clear strategic advice to customers on a range of business areas, including business development, transformational change, project management and training.

Through knowledge and experience of utilising a broad network of associates and partners, MAD4 delivers a range of services tailored to client’s specific requirements.

Our Vision & Mission

MAD4 is a team of professionals who share common values and gain satisfaction in successfully helping you to deliver your Business Objectives.

“We are business catalysts who drive business performance, kick start and deliver initiatives. Any challenge is embraced as just a problem waiting to be solved. Each one of us makes a difference, together we make change.”

UK Core Team.

Marie Wehrly

Marie Wehrly

Experienced Change Programme Manager and Finance Professional (FCCA) with 25 years’ experience within FTSE 100 National and Global organisations covering Finance, Retail Operations, Financial Services and Procurement.

More about Marie

Denis Collen

Denis Collen

Commercially-astute Senior Project Manager and Change Leader with 30+ years’ of experience across B2B, B2C, retail, not-for-profit, public, consulting, SME and FTSE-listed corporate sectors.

More about Denis

Rishi Thaker

Rishi Thaker

A Procurement, Commercial and Finance (ACCA) professional with over 20 years experience across Aviation, FMCG, Food & Beverage, Pharmaceutical and FM sectors.

More about Rishi

Frankie Collen

Frankie Collen

Experienced Project and Supply Chain Manager running programmes and providing customer solutions across multiple sectors including FM and Retail.

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Global Team.

Nikola Rnjak

Nikola Rnjak

Procurement Specialist with strong analytical skills and expertise in Projects, Operation and Contracts management.
EU / UK

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Magdalena Zajac

Magdalena Zajac

Procurement specialist with over 15 years experience in efficiency gains and supplier compliance across small, medium and established multi-site large businesses within retail, manufacturing and facilities management.
AUS / UK

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Chris Pokorny

Chris Pokorny

Experienced Retail professional with over 25 years of Senior Operations leadership, successful Store Format Project Delivery and Digital capability.
AUS

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Meeta Tallow

Meeta Tallow

Experienced Project Co-ordinator with 20 years in the oil, gas and renewables industry as Survey Party Chief, Project Surveyor and Survey Manager with successful transition to security, compliance and FM industries in planning and procurement.
UK

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Testimonials.

OUTCO brought MAD4 in to support the business in understanding and proposing solutions to Governance, Processes and Project Approaches. They left us with a clear plan to increase project profitability and positively influenced our colleagues throughout the engagement.

Fantastic work, highly recommend this passionate and professional company to any business looking at improving their ops, strategy and management.

Andrew Barry, CEO, OUTCO

I have worked with each member of the MAD4 team in my previous role as Procurement Director at ISS, individually and collectively and they all made a huge contribution towards very challenging savings targets.
Very professional in approach and able to work at a speed to suit the end client, great stakeholder engagement and detailed thought mapping for each project, i would have no hesitation in engaging the team again and would thoroughly recommend their services be the challenge big or small.

Nick Fryer, Procurement Director, ISS

The MAD4 Team were employed by ISS and worked in my area on driving assurance, compliance and delivering savings. They worked for me at ISS to delivered over £2m of financial savings over an 18 month period; the team worked collaboratively managing internal stakeholders and suppliers to ensure that the compliance levels improved and all activities were tracked and managed. The processes and methods adopted allowed the MAD4 team to deliver change at pace in a complex and challenging environment.

Mark Davis, Senior Procurement Lead, ISS

OUTCO brought MAD4 in to support the business in understanding and proposing solutions to Governance, Processes and Project Approaches. They left us with a clear plan to increase project profitability and positively influenced our colleagues throughout the engagement.

Fantastic work, highly recommend this passionate and professional company to any business looking at improving their ops, strategy and management.

Andrew Barry

CEO, OUTCO

I have worked with each member of the MAD4 team in my previous role as Procurement Director at ISS, individually and collectively and they all made a huge contribution towards very challenging savings targets.

Very professional in approach and able to work at a speed to suit the end client, great stakeholder engagement and detailed thought mapping for each project, i would have no hesitation in engaging the team again and would thoroughly recommend their services be the challenge big or small.

Nick Fryer

Procurement Director, ISS

The MAD4 Team were employed by ISS and worked in my area on driving assurance, compliance and delivering savings. They worked for me at ISS to delivered over £2m of financial savings over an 18 month period; the team worked collaboratively managing internal stakeholders and suppliers to ensure that the compliance levels improved and all activities were tracked and managed.

The processes and methods adopted allowed the MAD4 team to deliver change at pace in a complex and challenging environment.

Mark Davis

Senior Procurement Lead, ISS

Customers. Partners.