About Stuart

30 years on the retailer side. 12 years on yours.

Stuart Sadler — GSCOP Training Specialist

The person in the room is the person on this page.

Most training companies send an associate. Some send a lawyer. Stuart sends himself — because the value of this training comes directly from lived experience, not a course script.

Stuart spent 30 years in senior commercial and operational roles at Tesco. He knows how buyers are trained, how the retailer machine works, what the pressure points are, and how suppliers get squeezed — because he was inside it.

Since 2014, Stuart has worked exclusively with suppliers — training teams on GSCOP, advising on specific disputes, and helping businesses understand a Code their retailers know intimately but rarely explain.

He is listed on the GOV.UK directory of approved GSCOP training providers — one of a small number of individuals formally recognised by the Groceries Code Adjudicator.

30
years at Tesco
12+
years GSCOP specialist
400+
companies trained

Why it matters who delivers your training

GSCOP knowledge is easy to read. Knowing how it actually plays out in retailer negotiations, in buyer behaviour, in how deductions get raised and disputes get handled — that comes from experience, not study.

Stuart has sat in the meetings your buyers sit in. He has seen how buyers are briefed on what GSCOP allows them to do. He knows which conversations happen before the formal notice arrives, and what the retailer's internal process looks like. That context changes what the training means for your team.

A career built on both sides of the table.

The credibility Stuart brings to GSCOP training comes from a career that spans both retailer and supplier perspectives — something no purely academic training can replicate.

Every anecdote in a session is real. Every example is drawn from cases Stuart has personally encountered or advised on.

1980s–2013

Tesco — Senior Commercial & Operational Roles

30 years across commercial, supply chain and operational leadership at one of the UK's largest retailers. Extensive experience of how buyer-supplier relationships are managed at every level.

2014

First GSCOP Training Session

GSCOP came into force in 2013. Stuart delivered his first training session to suppliers in 2014, one of the earliest specialists to do so.

2014–Present

GSCOP Training & Supplier Consultancy

Over 400 companies trained. Ongoing work advising suppliers on specific GSCOP issues, disputes and negotiations alongside training delivery.

GOV.UK

Listed as Approved GSCOP Trainer

Formally listed on the GOV.UK directory of GSCOP training providers — one of a small number recognised by the Groceries Code Adjudicator.

Press & Expert Comment

With three decades of retail sector experience and over twelve years training suppliers on the Code, Stuart provides informed commentary on retailer-supplier relationships, GSCOP developments and industry disputes.

Available for interviews, expert quotes and industry analysis. Get in touch through the contact page with your request.

Get in Touch

Ready to book a session?

Get in touch and Stuart will respond personally with a tailored proposal.

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