CI Training · Templates · Advisory

Stop Firefighting.
Start Improving.

Structured CI training, professional templates, and hands-on advisory — built by a Master Black Belt with 27 years across 40+ organisations including GE, IBM, Credit Suisse, CSFB, Royal Mail, NAGE, Shell, KCA Deutag, Johnson Controls, and Bentley Systems.

27 years · 40+ organisations MITI Gold · Masaaki Imai 2018 €1B+ documented savings

Sound Familiar?

Your CI programme started strong — then stalled after 6 months.

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Your team is firefighting instead of improving.

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You've invested in tools but nothing sticks.

It's not the methodology. It's the system.

Your Path to Self-Sustaining Improvement

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Free · Start Here

Starter Guides

30-Day Improvement Starter Guide or 5 Shifts Preview. Begin your CI or management path.

Free
Download Free
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€39 – 49 · Get the Tools

Template Toolkits

CI Mastery Toolkit (25 templates) or PPM Template Pack. Plug straight into your projects.

€39 – €49
Get the Toolkit
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€297 – 397 · Build Capability

Training Programmes

CI Practitioner Programme or PPM Mastery. Self-paced modules with real-world application.

€297 – €397
Start the Programme
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Custom · Hands-On Support

Advisory

Workshops, train-the-trainer, and retainers. Expert support tailored to your organisation.

Custom
Book a Discovery Call

Trusted by CI Leaders Worldwide

★★★★★
"One of the most effective Master Black Belts in Europe — full stop."
M.S. | Growth Partner, Talent Solutions
★★★★★
"Whatever I know about Lean Six Sigma is thanks to him. Innovative, open-minded, courageous — a true leader."
P.W. | Tech Hub Lead, Energy Sector
★★★★★
"A first-class process improvement professional with an eye for driving value from the seemingly impossible."
G.H. | General Manager Strategy, Financial Services
★★★★★
"An inspirational trainer and coach who frequently enabled people to achieve beyond their expectations."
N.M. | Co-Founder & CTO, Logistics
★★★★★
"As a coach and mentor, he is world class."
G.M. | Business Improvement Lead, Banking
★★★★★
"A pragmatic professional with an enormous capacity for change initiatives."
D.N. | Head of People, FinTech
Jeroen van Koesveld

Jeroen van Koesveld | Founder, Master Black Belt

Master Black Belt with 27 years deploying CI across 40+ organisations — GE, IBM, Credit Suisse, CSFB, Royal Mail, NAGE, Shell, KCA Deutag, Johnson Controls, and currently Bentley Systems. €1B+ in documented operational savings. 300+ practitioners trained. Recognised with the MITI Gold Certification — first for oil & gas in Malaysia — and Masaaki Imai's Best CI Deployment recognition at Putrajaya 2018. Every product, template, and framework at Stormholt is built from real deployments, not textbook theory.

How It Works

Download

Start with a free guide. Pick your path: CI Practitioner or Manager.

Learn

Self-paced training with professional templates. Apply to a real problem this week.

Transform

Build self-sustaining capability. When ready, get hands-on advisory support.

Frequently Asked Questions

PPTX slides + XLSX templates. Self-paced, immediate download after purchase.
Yes. Advisory starts at €250/hr. Begin with a Discovery Call to scope your needs.
Yes. 14-day refund on all digital products if you haven't accessed the content.
Operations leaders, CI practitioners, Lean/Six Sigma professionals, and managers building improvement capability.

Ready to stop firefighting?

Download the free 30-Day Starter Guide and start building improvement capability this week.

Get the Free Guide →

No email required. Immediate download.