26 Years of Operational Excellence. Proven.
Fortune 500–proven methodology. Built to scale. Over $4.4 billion in documented client value across 21 countries.
Trusted Worldwide
Fortune 500 companies, government agencies, and organizations across 21 countries trust VRI to deliver operational excellence.
The Oil & Gas Lean Six Sigma Leader
VRI built its reputation as the go-to Lean Six Sigma resource for oil & gas. Our training and consulting programs speak the language of the industry, from rig floor to boardroom, from exploration to distribution.
Thousands of oil & gas professionals certified through VRI-delivered programs at major operators worldwide, including Fortune 500 companies.
Explore Our IndustriesMethodology That Transfers
The same rigorous approach that transformed oil & gas operations has delivered results across industries.
Healthcare
Patient flow optimization, clinical process improvement, administrative efficiency, and quality outcomes.
Learn More →Manufacturing
Production line optimization, quality improvement, waste reduction, and operational efficiency.
Learn More →Plus: Supply Chain & Logistics, Finance, Government, Pharmaceuticals, IT
View All Industries →Federal Government Partner
VRI is an approved GSA Schedule contract holder, providing Lean Six Sigma consulting, training, and mentoring services to federal government agencies.
What Our Clients Say
I have worked with VRI on three continents over the last 12 years. VRI has consistently provided high-quality Lean Sigma instruction, project mentoring, and Master Black Belt services. VRI's work has created business value and positive improvements.
VRI has supported our Lean Sigma program through on-site training and mentoring since we started our first program in 2000. They understand oil field processes and are able to effectively integrate examples from our company into their training material.
The Lean Six Sigma training I received from VRI exceeded my expectations. The instructors are extremely knowledgeable and connect well with the class. Thanks to VRI's highly effective training, I mastered all the tools and techniques of a Black Belt.
Overall, this course was a highlight for my career. I commend VRI and our Instructor for the comprehensive structure of the course and all the materials and information provided that were a value-added component to my professional development.
VRI Certified Professionals
Since 1999, VRI has certified professionals in Lean Six Sigma methodologies. All certifications issued under the Variance Reduction International name remain valid and verifiable.
Need to verify a certification? Learn how →
VRI's Proven Methodology, Now AI-Powered
After 26 years and $4.4 billion in documented results, we've evolved our expertise into PrysmCore™, an AI platform bringing operational excellence tools to organizations of any size.
Explore PrysmCore™