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
"… QLS is my eyes and ears at the factory, they're going to bat for me. It's a level of trust that you can't buy …"
"… Our relationship with QLS is key. They've built really strong trust with us that has lasted a long time at this company …"
"… We've seen so many other third parties and they've all had problems, but QLS is efficient, ethical, and I can trust them …"
"… QLS is the only company we trust to inspect all the parts we have coming in …"
"... Using QLS for our inspection needs gives me a piece of mind that the issue is being taken care of and our customers are protected..."
"… We rely on QLS for things like shift reports, regular communication about the product, and being notified of any hiccups …"
"… The nuances of the industry are very important, and they have a great foundation and knowledge base. QLS has good knowledge in heavy-duty trucks and doesn't need to be taught on the job …"
"… I really appreciate their level of autonomy. Their slogan is something like 'we're on it', which means that I can be hands-off …"
"… QLS is my eyes and ears at the factory, they're going to bat for me. It's a level of trust that you can't buy …"
"… QLS has a quality management support system that we love. The communication is great. Especially with Dot they have stepped up to be more formidable lately …"
"… QLS has more of a plan and strategy put together when they come into the plant, whereas other providers are followers and just wait to be told what to do"