Preview the style and difficulty of each certification before paying for a final exam.
Affordable Credentials For Practical Quality Work
Earn a practical quality certification online.
Northstar Quality Institute helps working quality professionals show practical knowledge in Lean, process improvement, supplier quality, and quality systems. Try a free practice test first, then purchase a timed final exam when you are ready.
- Built for self-funded professionals looking for career momentum
- Focused on practical quality, improvement, and systems thinking
- Earn a printable certificate with a credential ID after passing
Certification exam pricing
$29 to $89
Accessible pricing for professionals paying out of pocket.
What candidates get
- Free practice tests before buying
- Timed final exams with instant scoring
- Printable certificate for resumes and LinkedIn uploads
- Public credential verification by certificate ID
Independent and practical
Northstar credentials are designed to help professionals show practical quality knowledge in a format that is accessible, clear, and easy for employers to understand.
Each certification lists its price, time limit, passing score, and covered body of knowledge.
Credential IDs can be checked on the public verification page.
Who It Helps
A simpler path to credibility for early and mid-career quality professionals.
Quality technicians and inspectors
Show that your experience with inspection, defects, and nonconformance work connects to broader quality and improvement concepts.
Engineers and process owners
Demonstrate fluency in Lean, variation, root cause analysis, control planning, and evidence-based corrective action.
Supplier and operations professionals
Build a recognizable skill signal around containment, CAPA, supplier issues, audits, and practical quality systems.
What Employers Can Verify
Every passing candidate receives a credential record.
Certificates include a credential ID that can be checked by a hiring manager, supervisor, or recruiter.
Candidate identity
Certificate records include the candidate name provided during the exam process.
Certification earned
Verification shows the specific Northstar certification and issue date.
Credential status
Employers can confirm whether a credential is active, revoked, or not found.
Certification Catalog
Choose the certification that matches the knowledge you want to prove.
Northstar offers exam-based credentials for Lean Six Sigma and practical quality systems knowledge.
Entry level
Lean Six Sigma Yellow Belt
For operators, coordinators, and new professionals supporting process improvement in production environments.
View Exam Details Project levelLean Six Sigma Green Belt
For professionals leading moderate-scope quality and efficiency initiatives with real data and measurable impact.
View Exam Details Leadership levelLean Six Sigma Black Belt
For improvement leaders driving larger manufacturing initiatives, mentoring others, and supporting governance.
View Exam Details Manufacturing qualityQuality Engineering Foundations
For candidates who need a recognizable quality credential that covers CAPA, FMEA, control plans, auditing, and nonconformance response.
View Exam Details