Who We Are

One dedicated team.
Two continents. One duty.

SNZ Sona Consulting is an offshore delivery firm led from France. We build dedicated teams who learn your business deeply and carry it as their own duty — with operational excellence as the discipline behind every engagement.

Why Choose Us

Operational Excellence,
Measurable Results.

Operational excellence is not a service we sell — it is the standard we hold ourselves to on every engagement. It is the reason clients choose SNZ Sona over larger firms: world-class Lean Six Sigma rigour, applied by a team that is personally accountable for your outcomes.

Every process we touch is measured before and after. Every improvement is documented, quantified, and handed over with the capability to sustain it. No generic frameworks, no year-long engagements that outlive their value — results visible within 90 days.

This discipline is our competitive advantage — and when you work with us, it becomes yours.

Book a Discovery Call

40%

Avg. Cost Reduction

Across all engagements

90

Days to First Results

Guaranteed delivery

47+

Engagements Delivered

France & international

12

Industries Served

Banking to manufacturing

  • Lean Six Sigma Black Belt methodology on every engagement — KPIs agreed before we start
  • 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

The Team

Meet the Founders

Somya Sethi
SNZ Sona SNZ Sona Consulting

Somya Sethi

Co-Founder & Managing Partner

Somya brings 12+ years of operational transformation expertise across manufacturing, financial services, and IT sectors in France and the UK. A certified Lean Six Sigma Black Belt, Power BI specialist, and ITIL-qualified practitioner, she has led 30+ engagements spanning process excellence, ITSM programme management, and technology-enabled transformation. Her methodology centres on building internal capability and sustainable change — clients don't just improve, they learn to sustain it.

Email contact@snzsona.com
Location Paris, France
Specialisms Lean Six Sigma · Power BI · ITSM

Strategic  ·  Insightful  ·  Results-Driven

Naji Zenati
SNZ Sona SNZ Sona Consulting

Naji Zenati

Co-Founder & Managing Partner

Naji brings over a decade of experience leading high-impact business projects across French and international markets. As Co-Founder and Managing Partner, he drives client acquisition, commercial strategy, and the end-to-end governance of all consulting engagements. With deep expertise in business development, project leadership, stakeholder management, and organisational design, Naji has guided C-suite executives through complex transformation challenges — from restructuring operations to building scalable commercial functions.

Email naji@snzsona.com
Location Paris, France
Specialisms Business Strategy · Project Leadership

Strategic  ·  Insightful  ·  Results-Driven

Our Principles

What We Stand For

Results Before Everything

We measure our success by your savings, not our billable hours. Every engagement includes agreed KPIs before we start.

Built-In Capability

We don't create dependency. Our engagements transfer knowledge so your team owns the improvement permanently.

Speed Without Shortcuts

90 days to first results is non-negotiable. We compress timelines through methodology, not by cutting corners.

How We Work

The SNZ Sona Engagement Model

1

Discovery Week 1–2

Deep diagnostic of your processes, data, and pain points. No assumptions — we map the reality.

2

Assessment Week 2–3

Root cause analysis, waste quantification, and opportunity sizing. You see the numbers before we start.

3

Execution Week 3–10

DMAIC cycles, BI implementation, or ITSM deployment — depending on your roadmap. Weekly progress reports.

4

Results Week 10–13

Measurable outcomes delivered, documented, and handed over. Your team trained to sustain them.

Lean Six Sigma Black Belt · Power BI Certified · ITIL 4 Foundation · PRINCE2 Practitioner · Agile/Scrum Master · IASSC Certified

Work With Us

Ready to explore what we can build for your organisation?

Every engagement begins with a no-obligation discovery call. We'll assess your situation, identify the highest-impact opportunities, and show you the numbers — before you commit to anything.