About Leahy-Wolf
For over 80years, Leahy-Wolf Company has been a trusted name in industrial lubricant distribution. As a family-owned business headquartered in Addison, Illinois, we've built our reputation on quality products, technical expertise, and personalized service.
Our Core Values
The principles that guide everything we do
Quality First
We never compromise on the quality of our products or services. Every lubricant we distribute meets rigorous industry standards, including API and ILSAC certifications.
- ILSAC GF standards are issued by the International Lubricant Standardization and Approval Committee, founded in 1992 by Ford, General Motors, Chrysler, and the Japan Automobile Manufacturers Association (JAMA).
- ILSAC works closely with the American Petroleum Institute (API) to develop minimum performance standards for passenger car motor oils.
- The API handles licensing and certification through its Engine Oil Licensing and Certification System (EOLCS), authorizing the official API Certification Mark on compliant products.
Customer Partnership
We build lasting relationships by understanding our customers' unique needs and delivering tailored solutions.
Reliable Service
From order to delivery, we ensure dependable service that keeps your operations running smoothly.
Continuous Improvement
We constantly evolve our offerings to provide the most advanced lubrication solutions available.
Our Mission
“To be the premier industrial lubricant partner across Illinois, Indiana, Michigan, and Wisconsin—while serving customers throughout the continental United States via our extensive distributor network—by delivering superior products, exceptional service, and the technical expertise that helps our customers achieve operational excellence.”