ISO 17025 Accredited Calibration Services
Schedule a CalibrationFull-Service Laboratory for A2LA-Accredited Calibrations
Constellation PowerLabs supports highly regulated industries with one of the most diverse calibration scopes in North America. Whether in-lab or onsite, our calibration services deliver audit-ready results, rooted in decades of metrology expertise and backed by ISO 17025 accreditation.
- Specializing in hard-to-source services like high voltage calibrations.
- A2LA accredited, with all calibrations NIST traceable.
- Six U.S. labs plus onsite service across the U.S. and Canada.
- Trusted by nuclear, pharma, life sciences and other critical industries.
Our Full Suite of Calibration Services
We provide both standard NIST-traceable and ISO 17025-accredited calibrations, with specialized expertise across a broad range of disciplines.
Managing several calibration services at once? Our calibration laboratory accreditation technicians simplify scheduling, compliance, and documentation.
Physical & Dimensional Calibrations
Dimensional Calibrations
Precision measurement of length, angles, and geometry.
Force Calibrations
Verification of load cells, dynamometers, and force gauges.
Flow Calibrations
Accurate measurement for air and liquid flow systems.
Mass, Scales & Weight Calibrations
Certified calibration of weights and balances.
Optical Calibrations
Alignment and performance checks for optical instruments.
Pressure Gauge Calibrations
Assuring accurate pressure readings for critical systems.
Torque Calibrations
Calibration of various style torque wrenches and transducers.
Vacuum Calibrations
Verification of vacuum gauges across a range of pressures.
Electrical Calibrations
Electrical Calibrations
Standard electrical component testing and verification.
Primary Calibrations
High Voltage Calibrations
Difficult to source accredited high voltage services available in-lab or onsite.
Light Calibrations
Measurement of light sources and photometric instruments.
Sound Calibrations
Testing and adjustment of acoustic measurement devices.
RF / Microwave Calibrations
Performance verification for high-frequency equipment.
Radiologically Controlled Equipment
Nuclear Industry Instruments
Calibration services for nuclear industry instruments in radiologically controlled environments.
Temperature
Temperature Calibrations
Accurate measurement across a wide range of temperatures.
Humidity Calibrations
Verification of relative humidity measurement devices.
Dew Point Calibrations
Precise calibration for moisture measurement equipment.
Our ISO 17025 & Appendix-B Calibrations
When precision and compliance are non-negotiable, we deliver. Our certifications reflect rigorous quality systems, industry-specific expertise, and a commitment to meeting the highest regulatory standards.
- ISO 17025 Accreditation under A2LA – Independent verification that our calibration services meet strict technical quality requirements.
- NIST-Traceable Calibrations – Every calibration we perform is traceable to the National Institute of Standards and Technology, certifying measurement consistency and reliability.
- Nuclear Compliance – We meet the demanding requirements of 10 CFR 50; Appendix B, 10 CFR 21, NQA-1, and ANSI N45.2 for the nuclear industry’s most critical applications.
- Regular Audits by NUPIC & NIAC – Frequent third-party audits validate our processes, providing additional assurance for regulated and safety-critical industries.
On-site & Lab Accredited Calibration
Need A2LA Accredited Testing and Calibration in Lab or Onsite? We Proudly Support Clients Across North America
Whether your equipment comes to us or we come to you, Constellation PowerLabs delivers ISO 17025-accredited calibration services with the same rigorous standards. Our nationwide reach and specialized teams make even the most complex calibration work straightforward and efficient.
- Dedicated Onsite Team – Includes high voltage testing support with a dedicated coordinator and a customer care specialist for streamlined service.
- Flexible Scheduling – Designed to accommodate high-complexity projects and minimize downtime.
- Ideal for Large or In-Use Equipment – Onsite calibrations perfect for immobile assets or full-facility calibration service needs.
- Internal Logistics Advantage – Secure, in-house transport between labs ensures safe handling of your equipment.
How We Safeguard Your Operations With A2LA Accredited Results
With over a century of calibration expertise, Constellation PowerLabs helps regulated industries protect uptime, meet compliance demands, and maintain measurement integrity, no matter the complexity.
- Deep Expertise Spanning a Century – Multi-disciplinary calibrations performed by specialists across six dedicated U.S. labs.
- Consistency – Standardized methods and rigorous quality controls are applied to every calibration.
- Accuracy – Low uncertainties and validated equipment minimize compliance risks.
- Flexibility – Lab or onsite service, multi-site program support, and centralized documentation.
- Transparency – Access calibration reports anytime, anywhere through our secure OneLab portal.
Industries We Support With A2LA-Accredited Calibration
Supporting Quality and Compliance in High-Stakes Sectors
We have built decades-long relationships with organizations where precision and compliance are critical. Our calibration services and methods integrate seamlessly with client SOPs and quality systems, supporting everything from audit readiness to historical data access. We partner with teams to prepare for inspections, maintain documentation, and meet the highest industry standards.
Our accreditations and internal quality system support:
Nuclear Power Plants
NRC-regulated calibration and impulse testing for safety-critical systems.
Pharmaceutical Manufacturing
FDA audit-ready calibration services for validated processes.
Aerospace & Defense
Calibration aligned with mil-spec, ISO 9001, and AS9100 requirements.
Utilities & Energy Providers
Certifying compliance and maximizing operational uptime.
Minimize Downtime & Protect Operations with A2LA Calibration Services
Partnering with Constellation PowerLabs means every calibration is NIST-traceable and compliant with strict industry standards. We provide the documentation, quality system overviews, and accreditation details you need, making vendor qualification or calibration program consolidation straightforward.
Whether you’re operating in Texas, South Carolina, or North Carolina, or centralizing services across multiple facilities, our team is ready to support your evaluation process. We deliver calibration and testing services nationwide and internationally, including the U.S. and Canada, so you can rely on one recognized provider wherever your operations are located.