What Is the Lean Six Sigma Black Belt Credential?Your Route to Operational Excellence
The Lean Six Sigma Black Belt (LSSBB) is the advanced process improvement credential that proves you can lead complex, data-driven DMAIC projects and deliver measurable savings across an organisation. Lean Six Sigma Black Belt certification training in Rijeka with Invensis Learning prepares you for the IASSC-aligned exam while building real project leadership skill. Awarded by the International Association for Six Sigma Certification (IASSC, now part of PeopleCert), the Black Belt sits at the top of the practitioner ladder, above Green Belt. The exam is a closed-book paper of 150 multiple-choice questions over four hours, covering the full Define, Measure, Analyse, Improve and Control cycle, with no formal prerequisites to sit it. For professionals in Rijeka's shipbuilding, port, pharmaceutical and manufacturing sectors, the credential signals the ability to cut defects, waste and cycle time. Start your Black Belt journey with Invensis Learning and turn proven improvement skills into your next career step.
Invensis Learning is an accredited IASSC (Peoplecert) training partner in Rijeka (2778), approved to deliver official LSSBB training using IASSC-aligned courseware.









