Audit-Ready and
In Control
Get reliable NIST traceable metrology services from Quality Control Services — trusted nationwide and backed by local expertise
Accredited for Accuracy. Certified for Confidence.
Calibration services by QCS are ISO/IEC 17025:2017 accredited by the American Association for Laboratory Accreditation (A2LA). Based in Portland, Oregon, our labs are equipped with advanced calibration technology to deliver the accuracy and reliability your operations depend on — every time.
Metrology Services at QCS
Our A2LA-accredited Metrology Lab specializes in high-precision mass calibrations, offering NIST-traceable results from 1 mg to 30 kg. With a tightly controlled environment and NIST-trained experts, we ensure the highest level of accuracy for your critical measurement standards. Explore our most notable metrology service options:

Calibration Services
We offer accredited calibration services for various lab equipment, ensuring precise measurements. Our technicians can perform on-site calibrations across several states, reducing your downtime.

Equipment Sales
Our sales team has over 28 years of experience serving the Pacific Northwest, offering reliable and tailored solutions to meet your needs.

Equipment Repairs
Our repair department is ready to assist with complex equipment issues, and we are authorized warranty centers for Ohaus and Sartorius.
Experience the Difference With Quality Control Services
When your equipment isn’t properly calibrated, you’re not just risking measurement errors — you’re risking audit failures, production delays, and costly rework. Navigating compliance requirements and maintaining accuracy shouldn't overwhelm your team or slow down your business.
At QCS, we guide you through calibration with clarity and confidence.
For over 50 years, organizations across manufacturing, aviation, R&D, and utilities have trusted us to keep their instruments performing at the highest standards. As an ISO/IEC 17025:2017 accredited provider, our services are backed by rigorous processes and industry expertise, so you can move forward with peace of mind.
What You Can Expect with QCS:
- Precision Calibration: Accredited, NIST-traceable calibration that ensures accuracy and compliance — every time
- Fast Turnaround: We keep your operations moving with flexible scheduling and quick service
- Clear Documentation: Every calibration comes with clear, compliant records so you’re always prepared for inspections
Whether you're calibrating a single pipette or maintaining an entire production line, we simplify the process so you can focus on what you do best — without the stress of uncertainty.

Choose QCS for Local Expertise, National Reach, & Trusted Results
At Quality Control Services, we combine the responsive care of a local provider with the capabilities of a nationally recognized calibration partner. From compliance to performance, we help you operate with confidence.
Powered by
Accredited Labs
Accredited Labs provides QCS with the resources to bring top-tier calibration services, backed by a national standard of excellence.
Customer-First Service
Clear communication. Consistent results. We prioritize your success with reliable calibration and repair services that reduce downtime, prevent costly errors, and support your team's efficiency.
Tailored Solutions to
Meet Industry Demands
We take the time to understand your workflows, regulatory requirements, and equipment needs — delivering personalized support that ensures precision and compliance, no matter your field.
Getting Started Is Simple
Reliable, Precision Calibration in Three Easy Steps:
Tell Us What You Need
Send us a list of the instruments you need calibrated or repaired, no guesswork required.
Get a Fast, Clear Quote
We’ll review your list, provide transparent pricing, and help you schedule service at your convenience.
Maintain Compliance with Confidence
With precision calibration, you’ll meet compliance standards and keep operations running smoothly.
Let’s Get You Audit-Ready
Quality managers, engineers, and industry professionals trust Quality Control Services for precise, accredited calibration. We ensure your equipment is compliant, reliable, and ready for whatever comes next.
Industries We Serve
The Quality Control Services team specializes in a variety of industries, including: