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Quality Engineering

Quality Focus — At your customer and on your floor

supplier quality engineering services

Supplier Quality Engineering Services

Rolling out new products can be tough. Typically, there are contractually obligated processes and testing to achieve product quality standards. Without proper supplier quality engineering services, manufacturers may not be prepared for the stringent quality assurance documentation the industry requires nor have the resources required to monitor new products throughout the supply chain and at the point of use.


In response to this, Quality Liaison Services was founded in 2004 to provide quality engineering and inspection services to help engineering departments at the onset of new products and through their lifecycles.  We saw a need to help OEM manufacturers and their suppliers really understand what was going on with their supply chains through proactive quality engineering and inspection services.  Use QLS’s supplier quality engineering services to track down and resolve the source of quality problems at the factory or in shipment – or to resolve problems before they start – to achieve the quality the industry expects of its suppliers. 

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Quality Engineering Inspection Solutions

Once a supplier wins a contract to provide a given part for an OEM, that supplier must undergo the PPAP (Production Part Approval Process) as part of APQP.  While a supplier may be more than capable of manufacturing the components called for under the contract, the company may be unprepared for the nature of PPAP and the documentation required under industry standards. 


QLS has highly experienced engineers who can provide guidance through our quality engineering services.  With decades of expertise working with OEMs and suppliers, we have helped numerous companies get past the hurdles involved in the AIAG onboarding process.  We offer quality engineering solutions that shepherd you through the process from beginning to end, helping you provide the documentation required to comply with industry standards fully. 

How We Work

When you partner with us for third-party containment and sorting, you get knowledgeable inspectors with precision measurement tools. They come with appropriate personal protective equipment and a courteous, professional demeanor. Furthermore, you receive: 

  • Instant Reporting with the QLS Dot project tracking system
  • Immediate Response Time
  • Heightened Attention to Detail
  • Fast, Precise Sorting
  • Nonconformances are Identified and Contained Effectively
  • Accurate Time and Part Counts
  • Defined Work Instructions
  • Boots-On-The-Ground Visibility 

Engineering Quality Inspection Solutions

Shipping the initial products to the OEM can be a nerve-racking experience. As part of our supplier quality engineering services, QLS has personnel on-site at the OEM facility. With our quality engineering inspection services, we will inspect the containers as they arrive and monitor for issues as the product is being used. There is no substitute for having an advocate for your product where it is being used.


Existing suppliers have also found QLS to be an invaluable partner in quality engineering inspection and assurance.  When new components consistently arrive from the factory with cosmetic or functional damage, there can be no shortage of confusion on where and why the damage occurred.  QLS’s engineering inspection services can help suppliers and OEMs get to the bottom of what’s happening and how to fix it to bring all parties within contractual compliance.  



Let QLS help you achieve outstanding quality in all aspects of your engineering, manufacturing, and logistics operations.  Contact us today!


  • QLS associates in the field are our people, not contractors. While other companies punt to contractors who simply sort defective parts, we help our clients track down the failures in their manufacturing and logistics processes. 
  • QLS has people on hand with both the supplier and the OEM. With both ends covered, we have much more visibility regarding the overall process.
  • As an independent third party, we can exercise high levels of objectivity in analyzing the end-to-end processes with all parties involved to understand how and why quality breakdowns are occurring.

Increase Productivity

OEM Services

QLS acts as a liaison between OEMs and their suppliers handling incoming quality concerns, installation modifications, and other special projects.

Strengthen Customer Relationships

Supplier Services

Suppliers depend on QLS to provide instant response, resolution, and superior communication on a wide range of issues that occur inside both their and OEM customer's facilities.