Your on-site advocate at OEM facilities — keeping track of your products when timing is critical.
Third-party sorting & containment
IPC/WHMA-A-620 certified
CS1 & CS2 support
Supplier quality engineering
On-site observation & feedback
On-site containment repair
Launch quality support
Quality inspection & sorting
Third-party product monitoring
A secure, real-time project tracking system for quality inspection data.
Truck quality assurance
Battery inspection & testing
EV & powersports QA
Aerospace testing services
Medical devices & PPE
Raw material inspection
Heavy equipment inspection
Engine component inspection
Bus quality assurance
Marine engine inspection
Solar panel inspection
Our North American coverage
What our clients say
Join the QLS team
Practical guides for suppliers & OEMs
Real-world quality success stories
Company updates & industry insights
For more than 20 years, QLS has helped suppliers and manufacturers protect quality, maintain production, and resolve issues throughout the supply chain.
Quality Liaison Services (QLS) partners with suppliers and manufacturers across North America to protect production and ensure quality across industries including medium- and heavy-duty vehicles, aerospace, defense, and more.
To be a world leader in third-party quality services.
To be a valued member of supply chains by providing skilled, efficient, and reliable quality services in an ever-evolving market.
Skilled | Efficient | Reliable | Valued | Evolving
The QLS logo features three interlinked chains encircled by a measurement device, symbolizing our role as a strong connection between OEMs and their suppliers, reinforcing a high-quality, efficient supply chain.
We serve two key customers: OEMs rely on us to maintain productivity and enhance supplier quality ratings over time, while suppliers trust us to represent them within OEM facilities, providing immediate support and responsiveness. This creates a mutually beneficial, value-added partnership for both parties.
CEO
CFO
VP – Sales and Marketing
VP – Operations
VP – Technology