Lean Six Sigma · France & International

Operational Excellence,
Measurable Results.

SNZ Sona Consulting partners with French IT, manufacturing, and service firms to eliminate inefficiency, reduce costs, and drive lasting competitive advantage — with results visible within 90 days.

90

Day Impact

40%

Cost Reduction

3

Belt Levels

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Proven Results

Measurable impact. Every engagement.

0%

Avg. Cost Reduction

Across all engagements

0

Time to First Results

Guaranteed delivery

0

Engagements Delivered

France & International

0

Industries Served

From banking to manufacturing

What We Offer

Our Services

Every engagement begins with rigorous diagnosis and ends with measurable, documented impact.

01
Assessment
Book a diagnostic

2-day on-site engagement

Initial Assessment & Diagnostic

A structured deep-dive covering stakeholder interviews, process walk-throughs, and data gathering — culminating in a comprehensive report and tailored project proposal.

  • Stakeholder interviews & process mapping
  • Root cause identification & data review
  • Diagnostic report with ROI projections
Begin your diagnostic
01 / 07

Remote & in-person workshops

Training & Certification

Lean Six Sigma workshops at White, Yellow, and Green Belt levels — adapted for French business culture, with specialised IT tracks covering Agile, Lean, and DevOps alignment.

  • White, Yellow & Green Belt programmes
  • French business culture adaptation
  • Agile, Lean & DevOps IT tracks
Enquire about training
02 / 07
03
Quick Win
Get a proposal

6-week sprint

Quick Win Package

A focused sprint targeting 1–2 high-impact, low-effort process failures. Visible ROI delivered before the engagement ends — ideal for proving the value of operational improvement.

  • Process mapping & root cause analysis
  • Solution design & implementation
  • KPI tracking & documented ROI
Get a tailored proposal
03 / 07
04
Overhaul
Get a proposal

8–12 week deep redesign

Process Overhaul Package

A thorough redesign of a significant operational process — incident lifecycle, dev pipeline, or customer support — using value stream mapping, data analysis, and change management.

  • Value stream mapping & waste elimination
  • Data analysis & solution design
  • Change management & adoption
Get a tailored proposal
04 / 07
05
Transformation
Learn more

12+ week enterprise programme

Strategic Transformation

Enterprise-level re-engineering spanning multiple departments, embedding a continuous improvement culture that outlasts the engagement. Includes benefits tracking and executive reporting.

  • Multi-department re-engineering
  • Executive stakeholder management
  • Continuous improvement culture embedding
Schedule a discovery call
05 / 07
06
Retainer
Discuss a retainer

Monthly or quarterly retainer

Ongoing Lean Audits

Audit retainers for organisations that have completed an implementation programme. Includes Power BI dashboard reporting, KPI review, and continuous improvement coaching to sustain gains.

  • Power BI dashboard & KPI reporting
  • Quarterly performance reviews
  • Continuous improvement coaching
Discuss a retainer
06 / 07
07
New · AI Compliance
Explore this service

EU AI Act · ISO 42001

AI Audits & Compliance

EU AI Act risk classification, algorithmic audits, and AI governance frameworks. We help organisations understand their compliance exposure and build documentation for high-risk AI systems.

  • EU AI Act risk classification
  • Algorithmic audits & bias testing
  • Governance frameworks & documentation
Explore AI compliance
07 / 07

Who We Are

A New Standard in
Operational Excellence

SNZ Sona Consulting France was founded by Somya Sethi and Naji Zenati with a single conviction: French organisations deserve Lean Six Sigma expertise that is both world-class in rigour and deeply adapted to local culture, regulation, and business context.

We operate on a hybrid delivery model — France-based consultants lead every client relationship, while a specialist offshore team in India and Bangkok provides data analysis, process documentation, and solution development at 40–60% below typical Big-4 rates.

Our target clients are IT managed services firms, software development houses, customer support operations, and manufacturing SMEs who need measurable results — not year-long engagements and generic frameworks.

  • All deliverables produced in French; France-based lead on every engagement
  • GDPR-compliant offshore data protocols built into every project contract
  • Low entry risk: begin with a 2-day diagnostic before any full commitment
  • Registered SAS in France — legally structured for local and international work

If you can't describe what you are doing as a process, you don't know what you're doing.

W. Edwards Deming

Typical Client Outcomes

Process Efficiency +40%
Cost Reduction −35%
Lead Time Cut −60%
Team Productivity +28%

Delivered within 90 days  ·  No year-long retainers

How It Works

From First Call to Lasting Change

01

Discovery Call

A free 45-minute conversation to understand your challenges, context, and goals. No obligation.

02

2-Day Assessment

On-site diagnostic to map your processes, identify waste, and quantify the improvement opportunity.

03

Tailored Proposal

We present a scoped implementation package matched to your budget, timeline, and strategic priorities.

04

Delivered Results

Implementation, training, and knowledge transfer — with KPIs tracked and documented at every milestone.

Client Voices

Results Clients Trust

"After the 2-day assessment, the team identified bottlenecks in our incident resolution workflow we had been living with for three years. The Quick Win engagement delivered a 34% reduction in average resolution time. The ROI was clear within the first month."

LM

Laurent M.

Head of IT Operations, Managed Services Firm — Paris

"We were sceptical about an offshore delivery model, but the France-based lead gave us full confidence. Every deliverable was in French, every milestone was on schedule. Our QA pipeline is now genuinely Lean — and the cost was a fraction of what a Big-4 firm quoted us."

CB

Claire B.

VP Engineering, SaaS Company — Lyon

"The Green Belt training workshop for our team was exceptional — practical, culturally attuned, and directly applicable to our customer support context. Our NPS score improved by 18 points in the quarter following the engagement."

TR

Thomas R.

Director of Customer Success, Fintech — Bordeaux

Thought Leadership

Perspectives & Insights

Get In Touch

Start With a
Free Discovery Call

Every engagement begins with a no-obligation 45-minute call to understand your operational challenges. From there, we design a diagnostic proposal tailored to your organisation — with transparent pricing and no hidden fees.

Based in France

Serving French and international clients — remote and on-site

contact@snzsona.com

We respond within one business day

Phone / WhatsApp

Discovery Call: 45 minutes, free of charge

2-Day Assessment from €3,500

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Behind the work, the thinking, and the team.

@snzsona