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Last updated: April 2026
QC

Quality Control Services

Portland, OR
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Quality Control Services (QCS), founded in 1974, provides precision calibration, repair, and laboratory equipment sales from Portland, Oregon. It is accredited by A2LA to ISO/IEC 17025:2017 and provides NIST-traceable calibrations and on-site calibration services.

laboratory equipment calibrationthermometer calibrationpipette calibrationweight calibrationequipment repairon-site calibration
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Credentials & Experience

Years of Experience
52+
Certifications
  • A2LA accreditation to ISO/IEC 17025:2017
  • NIST-traceable calibrations

Coverage Area

Across North America; on-site calibration across the Pacific Northwest and parts of California.

Additional Details

ISO/IEC 17025 Accredited
Yes
Years of Experience
52 years
On-Site / Mobile Calibration
Yes
NIST-Traceable Standards
Yes
Industries Served
Manufacturing

Location

2340 SE 11th Avenue, Portland, OR 97214

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Calibration laboratory Resources

What to Expect When You Hire a Calibration Laboratory (Step by Step)

7–10 business days, start to finish — here's exactly what hiring a calibration laboratory looks like, so your instruments are back before the audit deadline.

How to Review a Calibration Laboratory's Work (Quality Checklist)

8-point checklist for reviewing calibration laboratory work: verify as-found data, NIST traceability, uncertainty values, and ISO/IEC 17025 accreditation…

9 Common Calibration Laboratory Mistakes (And How to Avoid Them)

Most calibration laboratory failures come down to process, not instruments: wrong schedules, lost accreditation, bad environments. Here are all 9 fixes.

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