3ZEN

3ZEN d.o.o. is a leading Slovenian consulting and training company specializing in continuous improvement, systematic innovation, operational excellence, and sustainability transformation.

Established in 2011 and headquartered in Ljubljana, Slovenia, the company supports organizations across Europe in achieving measurable business growth through internationally recognized methodologies and practical implementation.

3ZEN is widely recognized for combining advanced improvement systems with innovation frameworks, helping companies optimize processes, reduce waste, improve quality, strengthen competitiveness, and prepare for future regulatory and market demands.

Core Areas of Expertise

Operational Excellence & Process Improvement
3ZEN helps companies improve productivity, quality, and profitability through proven methodologies such as:

Lean Management
Six Sigma
Lean Six Sigma
TPM (Total Productive Maintenance)
Shopfloor Management
DFSS (Design for Six Sigma), and:

Systematic Innovation
The company is a specialist in TRIZ methodology, one of the world’s most advanced innovation systems used for solving technical and organizational challenges through structured creativity and breakthrough thinking.

Automotive Industry Support
3ZEN provides expert consulting for automotive suppliers and manufacturers, including:

IATF 16949
VDA 6.3
FMEA
OEE Systems
Datalyzer Solutions

Sustainability & Circular Economy
3ZEN actively supports companies in transitioning toward sustainable business models through:

ISO 14001
FSC® / PEFC™ systems
Life Cycle Assessment (LCA)
Environmental Product Declaration (EPD)
Circular Economy Projects
Digital Product Passport (DPP)

Training & Education

3ZEN delivers both open enrollment and in-house corporate training programs, enabling organizations to build internal capabilities and leadership in continuous improvement and innovation. Their programs include Green Belt, Black Belt, Lean Production, TRIZ, problem solving, and management systems development.

Why Companies Choose 3ZEN

Over a decade of proven consulting experience
Strong expertise in manufacturing and industrial sectors
Internationally recognized methodologies
Practical, results-driven implementation approach
Combination of efficiency, innovation, and sustainability under one partner
Customized solutions tailored to each client’s goals

References:

BSH Home Appliances, Domel, Hella Saturnus, LTH Castings, Iskra Mehanizmi, Hidria, Lip Bled, Danfoss...