usCalibration
Irvine, CA, US
Scope
Parameter/Equipment Frequency CMC2, 4 (±) Comments AC Voltage – Generate3 (cont) (3.3 to 33) V (33 to 330) V (330 to 1020) V (10 to 45) Hz 45 Hz to 10 kHz (10 to 20) kHz (20 to 50) kHz (50
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ISO/IEC 17025 directory
Calibration Labs and Services
Labs whose accredited scope includes electrical, mass, temperature or pressure calibration. Calibration compares a measuring instrument with a reference of known accuracy and states the difference and its uncertainty. 336 accredited labs in 27 countries have electrical, mass, temperature or pressure calibration in their scope. Most of them are in United States, Canada and Japan. The most common standards in these scopes are ANSI/NCSL Z540-1-1994, ASTM E18 and ASTM E4.
- Labs
- 336
- Countries
- 27
- Most common standard
- ANSI/NCSL Z540-1-199443 labs
About Calibration
Instruments typically calibrated: multimeters, oscilloscopes, power supplies, electrical calibrators, balances, scales, weights, load cells, force machines, torque tools, thermometers, thermocouples, temperature baths, furnaces, climatic chambers, pressure gauges, pressure transducers, deadweight testers and vacuum gauges. Calibration of length and geometry instruments belongs to dimensional metrology.
Calibration labs by country
United States251 labs
Canada16 labs
Japan12 labs
Mexico11 labs
United Kingdom7 labs
Germany5 labs
France5 labs
Sweden4 labs
Peru3 labs
Saudi Arabia3 labs
China2 labs
India2 labs
Colombia1 lab
Dominican Republic1 lab
Ecuador1 lab
Hong Kong SAR China1 lab
Hungary1 lab
Italy1 lab
South Korea1 lab
Kuwait1 lab
Malaysia1 lab
Qatar1 lab
Singapore1 lab
Thailand1 lab
Taiwan1 lab
Vietnam1 lab
South Africa1 lab
Calibration labs by US state
California28 labsOhio19 labsTexas19 labsFlorida13 labsPennsylvania12 labsIllinois11 labsNew York10 labsMichigan9 labsIndiana8 labsNorth Carolina8 labsTennessee8 labsGeorgia7 labsMassachusetts7 labsMaryland7 labsWashington7 labsSouth Carolina6 labsVirginia6 labsKentucky5 labsLouisiana5 labsMinnesota5 labsOklahoma5 labsOregon5 labsArizona4 labsConnecticut4 labsWisconsin4 labsColorado3 labsIdaho3 labsKansas3 labs
Mississippi3 labs
Utah3 labsAlabama2 labsNew Jersey2 labsArkansas1 labIowa1 lab
Maine1 lab
North Dakota1 lab
New Mexico1 lab
Nevada1 lab
Most common standards in electrical, mass, temperature or pressure calibration scopes
Labs with electrical, mass, temperature or pressure calibration in their scope
Trescal, Inc. - Philadelphia, PA
Lansdale, PA, US
Scope
Parameter/Equipment Range CMC2, 5 (±) Comments DC Current – Generate (0 to 330) µA (0.33 to 3.3) mA (3.3 to 33) mA (33 to 330) mA (0.33 to 1.1) A (1.1 to 3) A (3 to 11) A (11 to 20.5) A 16 nA + 0.12 nA/µA
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National Calibration
Albuquerque, NM, US
Scope
Parameter/Range Frequency CMC2, 6 (±) Comments Capacitance – Generate (220 to 399.9) pF (0.4 to 1.0999) nF (1.1 to 3.2999) nF (3.3 to 10.999) nF (11 to 32.999) nF (33 to 109.999) nF (110 to 329.999) nF (0.33 to 1.1)
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InCal Technologies
Saginaw, MI, US
Scope
Parameter/Range Frequency CMC2, 5, 9 (±) Comments AC Current – Generate3 (cont) 330 µA to 3.3 mA (3.3 to 33) mA (33 to 330) mA 33 mA to 3 A (3 to 11) A (11 to 21) A (20
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SAFETECH CALIBRATION LAB - A DIVISION OF SAFETY INTERNATIONAL GENERAL TRADING AND CONTRACTING CO. W.L.L.
Shuaiba, KW
Scope
VI. Thermodynamics Parameter/Equipment Range CMC2, 3, 5 (±) Comments Temperature – Measuring Equipment (-40 to 150) °C (150 to 420) °C (420 to 660) °C 0.06 °C 0.07 °C 0.11 °C Temperature readout & RTD probe
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Metrologia Monterrey, S.A. de
Nuevo Leon, MX
Scope
Parameter/Equipment Range CMC2, 4, 6 (±) Comments Frequency – Measuring Equipment3 (0.01 to 11 999) Hz (12 to 2000) kHz (2 to 600) MHz 48 µHz/Hz + 6.3 mHz 0.042 % + 1.8 Hz 4.3 Hz/MHz + 5.9 kHz Fluke 552
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Quality Calibration Service
New Berlin, WI, US
Scope
IX. Time & Frequency Parameter/Equipment Range CMC2, 9 (±) Comments Frequency – Fixed Point Measure 3 & Generate3 10 MHz 0.01 Hz to 1 kHz > 1 kHz to 1.3 GHz 1.0 × 10 -10 Hz/Hz 6.5 µHz + 0.12 µHz/H
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JM Test Systems, LLC.
Baton Rouge, LA, US
Scope
Parameter/Range Frequency CMC2, 4, 10 (±) Comments AC Voltage – Generate 3 (cont) 220 mV to 2.2 V (2.2 to 22) V (22 to 220) V (220 to 1100) V (220 to 750) V
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MTS Systems Corporation - MTS Calibration Organization
Eden Prairie, MN, US
Scope
Parameter / Range Frequency CMC2, 6 (±) Comments Location8 AC Voltage – Generate (cont) (22 to 220) V (220 to 1100) V (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100
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SIMCO Electronics - Silicon Valley
Santa Clara, CA, US
Scope
III. Electrical – DC/Low Frequency Parameter/Range Frequency CMC2, 4, 5 (±) Comments AC Current – Clamp-on Meter3 Toroidal (20 to 150) A (150 to 1000) A Non-Toroidal (20 to 150) A
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Northstar Calibration
Owatonna, MN, US
Scope
Parameter/Range Frequency CMC2, 6 (±) Comments AC Current – Measure3 (0 to 1) A (1 to 3) A (10 to 500) A (3 to 1000) A (3 to 5) Hz (5 to 10) Hz 10 Hz to 5 kHz (3 to 5) Hz (5 to 10) Hz 10 H
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Constellation Powerlabs - Madison, PA
Madison, PA, US
Scope
Parameter/Equipment Range CMC2, 9 (±) Comments Infrared Temperature - Measuring Equipment 3 (-15 to 120) °C (120 to 200) °C (200 to 350) °C (350 to 500) °C 0.67 °C 1 °C 1.6 °C 2.2 °C Primary infra
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Test & Measurement
Lenexa, KS, US
Scope
Parameter/Range Frequency CMC2, 5 (±) Comments AC Voltage – Measure3 (cont) (12 to 120) mV 120 mV to 1.2 V (1.2 to 12) V (12 to 120) V (120 to 700) V (0.70
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TAI YI Electronics & Surveillance Co., Ltd.
New Taipei City, TW
Scope
III. Electrical – DC/Low Frequency Parameter/Equipment Range CMC2, 6 (±) Comments DC Voltage – Generate3 (1 to 100) mV (0.1 to 1) V (1 to 10) V (10 to 100) V (100 to 1000) V (1 to 5) kV (5 to 10) kV 1
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JM Test Systems, LLC.
Alexandria, LA, US
Scope
Parameter/Range Frequency CMC 2, 4, 5, 6 (±) Comments AC Voltage – Measure3, 8 (cont) (1 to 10) V (10 to 100) V (100 to 750) V (0.75 to 10) kV (1 to 40) Hz 40 Hz to 1 kHz (1 to
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Thermo Fisher Scientific operating as Unity Lab Services
Ottawa, CA
Scope
Parameter/Equipment Range CMC2, 7 (±) Comments Resistance – Generate 4 (0 to 10.9999) Ω (11 to 32.9999) Ω (33 to 109.9999) Ω (110 to 329.9999) Ω (0.33 to 1.099 999) kΩ (1.1 to 3.299 999)
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CROSS TECHNOLOGIES, INC. - FAIRVIEW
Fairview, TN, US
Scope
Parameter/Range Frequency CMC2, 4 (±) Comments Capacitance3 – Generate (220.0 to 399.9) pF (0.4 to 1.0999) nF (1.1 to 3.2999) nF (3.3 to 10.9999) nF (11 to 109.999) nF (110 to 329.999) nF (0.33 to 1.099 99) µF (1
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Battelle
Columbus, OH, US
Scope
IV. Thermodynamics Parameter/Equipment Range CMC2, 6 (±) Comments Temperature – Measuring Equipment Digital Thermometers Liquid-in-glass Thermometers (-60 to 660) °C (-60 to 660) °C
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InvoCal
Rixeyville, VA, US
Scope
Parameter/Range Frequency CMC2, 4 (±) Comments AC Current – Generate3 (cont) (33 to 329.99) mA (0.33 to 1.099 99) A (1.1 to 2.9999) A (3 to 10.999) A (11 to 20.5) A (10 to 45) H
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Micro Laboratories, Inc.
Mentor, OH, US
Scope
AMS-2750 – temperature data logger & thermocouples VI. Time & Frequency Parameter/Equipment Range CMC2 (±) Comments Stopwatches & Timers3 Up to 24 hr 0.051 s/day Timometer ______________________
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SIMCO Electronics - Salt Lake City
Draper, UT, US
Scope
Parameter/Range Frequency CMC2, 7 (±) Comments AC Voltage3 (cont) – Generate (2.2 to 22) V (22 to 220) V (220 to 1100) V (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz
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Instrument Calibration Solutions
Aliquippa, PA, US
Scope
(A2LA Cert No. 2332.01) Revised 2/16/2026 Page 14 of 20 Parameter/Range Frequency CMC2, 4 (±) Comments Capacitance3 – Generate (0.19 to 0.3999) nF (0.4 to 1.0999) nF (1.1 to 3.2999) nF (3.3 to 10.999) nF (11 to 32.9999) nF (3
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SIMCO Electronics - Minneapolis
Bloomington, MN, US
Scope
1 This laboratory offers commercial calibration service and field calibration service. 2 Calibration and Measurement Capability Uncertainty (CMC) is the smallest uncertainty of measurement that a laboratory can achieve within its scope
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JM Test Systems, LLC.
Port Arthur, TX, US
Scope
Parameter/Range Frequency CMC2, 4 (±) Comments AC Current3– Generate (29 to 330) µA (0.33 to 3.3) mA (3.3 to 33) mA (33 to 330) mA (0.33 to 1.1) A (1.1
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Constellation Powerlabs LLC - Piedmont, SC
Piedmont, SC, US
Scope
Parameter/Range Frequency CMC2, 5 (±) Comments AC Voltage3 – Generate (0.22 to 2.2) mV (2.2 to 22) mV (22 to 220) mV 220 mV to 2.2 V (2.2 to 22) V
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SIMCO Electronics - Dayton
Springboro, OH, US
Scope
VII. Time & Frequency Parameter/Equipment Range CMC2, 4, 8 (±) Comments Frequency – Measuring Equipment3 10 MHz DC to 10 MHz 10 MHz to 26.5 GHz 0.01 Hz to 2 MHz 1.5 nHz/Hz 1.5 µHz/Hz 1.5 nHz/Hz +
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JM Test Systems
Mattoon, IL, US
Scope
Parameter/Range Frequency CMC2, 4 (±) Comments AC Current – Generate (0.029 to 330) µA (0.33 to 3.3) mA (3.3 to 33) mA (33 to 330) mA (0.33 to 1.1) A (1.1 to 3
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Midwest Metrology
Clayton, OH, US
Scope
Parameter/Range Frequency CMC2, 4 (±) Comments AC Voltage – Generate3 (0.22 to 2.2) mV (2.2 to 22) mV (22 to 220) mV (0.22 to 2.2) V (2.2 to 22) V (
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Allometrics
Webster, TX, US
Scope
Parameter/Equipment Range CMC2, 5 (±) Comments DC Voltage – Measure (0 to 200) mV (0.2 to 2) V (2 to 20) V (20 to 200) V (200 to 1000) V 0.26 µV 1.5 µV 14 µV 0.19 mV 1.3 mV Fluke 8508A DC Current – Genera
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CROSS TECHNOLOGIES, INC - HUNTSVILLE
Huntsville, AL, US
Scope
Parameter/Range Frequency CMC2, 4, 5, 8, 13 (±) Comments AC Voltage – Generate3 (cont) (22 to 220) V (220 to 1100) V (220 to 1100) V (220 to 750) V (330 to 1020) V (10 to 20
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CROSS TECHNOLOGIES, INC - CHATTANOOGA
Chattanooga, TN, US
Scope
Parameter/Range Frequency CMC2, 4, 5 (±) Comments AC Voltage – Generate3 (continued) (3.3 to 33) V (33 to 330) V (330 to 1020) V (10 to 45) Hz 45 Hz to 10 kHz (10 to 20) kHz (20 to 50)
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Mentor Technical Group Metrology
Caguas, US
Scope
VI. Time & Frequency Parameter/Equipment Range CMC2 (±) Comments Frequency – Generate 50 Hz to 20 MHz 50 Hz to 50 kHz 22 μHz/Hz 82 μHz/Hz Signal generator Multiproduct calibrator Freq
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ANALYTICAL LABORATORY EIRL
Lima, PE
Scope
DKD-R 5-7 calibration guideline of climatic chambers Thermo-hygrometer data loggers Storage & Transportation Unit Thermal Conditions – Spatial Survey/ Mapping Temperature Humidity (0 to 50) °C (30 to 82%) RH
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SIMCO Electronics - Allentown
Allentown, PA, US
Scope
Parameter/Range Frequency CMC2, 7 (±) Comments AC Voltage – Generate3 (1.0 to 12) mV (12 to 120) mV (0.12 to 1.2) V (1.2 to 12) V (12 to 120) V (120 to
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International Certification Measurements, Inc. (subsidiary of Leader Corporation)
Shelby Township, MI, US
Scope
VII. Time & Frequency Parameter/Equipment Range CMC2, 6 (±) Comments Frequency – Measuring Equipment (Frequency Counters) 1 Hz to 10 kHz 0.58 Hz Signal generator _________________________ 1 This laborato
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Integrity Calibration Services
Evansville, IN, US
Scope
Parameter/Equipment Range CMC2, 4 (±) Comments DC Voltage – Generate3 Up to 329.9999 mV 330 mV to 3.299 999 V (3.3 to 32.999 99) V (33 to 329.9999) V (330 to 1020) V 0.007 % + 3.1 µV 0.006 % + 6.2 µ
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JM Test Systems, LLC.
Odessa, TX, US
Scope
Parameter/Range Frequency CMC2, 4, 5, 9 (±) Comments AC Voltage – Measure3 (1 to 10) mV (10 to 100) mV (0.1 to 1) V (1 to 10) V (10 to 100) V (100
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SIMCO Electronics - San Diego
San Diego, CA, US
Scope
Parameter/Range Frequency CMC2, 5, 7 (±) Comments AC Voltage – Generate3 (cont) (2.2 to 22) V (22 to 220) V (220 to 1100) V (250 to 750) V (300 to 500) kHz (0.5 to 1) MHz (10 to 20) H
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Cal-Tec
Broussard, LA, US
Scope
Parameter/Equipment Range CMC2, 11 (±) Comments IR Temperature – Measure (100 to 400) °F 1.7 °F Precision IR thermometer Temperature – IR Systems – Measuring Equipment (100 to 400) °F 3.9 °F B
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CROSS TECHNOLOGIES, INC - OLIVE BRANCH
Olive Branch, MS, US
Scope
Parameter/Range Frequency CMC2, 4, 6 (±) Comments AC Voltage – Measure3 Up to 750V (1 to 6) kV – Fixed Point 10 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz 60 Hz 0.12 % 0.21 % 0.82 % 1
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Cal-Cert Company
Anaheim Hills, CA, US
Scope
CP-033, standard capacitor, decade capacitor Multifunction calibrator DC Current – Generate3 0 to 3.299 99) mA (3.3 to 32.9999) mA (33 to 329.999) mA 330 mA to 2.199 99 A (2.2 to 11) A (11 to 16.5) A (16.5 to 150) A (
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Trin Calservices
Brampton, CA
Scope
Parameter/Range Frequency CMC 2, 5 (±) Comments Capacitance – Generate3 Measuring Instruments (0.19 to 0.4) nF (0.4 to 1.1) nF (1.1 to 3.3) nF (3.3 to 11) nF (11 to 33) nF (33 to 110) nF (110 to 330) nF (0.33 to 1.1) µF (1
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The Scale People Inc., dba The Lab People
Columbia, MD, US
Scope
Parameter/Equipment Range CMC2 (±) Comments Load Cell Tension Compression (250 to 1500) lbf (>1500 to 5000) lbf (>5000 to 25 000) lbf (>25 000 to 50 000) lbf (>50 000 to 100 000) lbf (250 to 1500) lbf (>15
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Instrument Technologies
Boise, ID, US
Scope
Parameter/Range Frequency CMC2, 5 (±) Comments AC Voltage – Measure3 Up to 200 mV 200 mV to 2 V (2 to 20) V (20 to 200) V (200 to 1000) V (1
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Global Mozon Laboratory for calibration and Supporting Services
Yanbu, SA
Scope
Euramet cg-13 Indicator MilliK, SSPRT & S type TC, type (N) & type K TC sensor with thermometer indicator In-house method GMCL-TP05 GMCL-TP07 Yanbu, Tabuk Humidity – Measuring Equipment (10 to 95) % R
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CROSS TECHNOLOGIES, INC - GREENVILLE
Greenville, SC, US
Scope
Parameter/Range Frequency CMC2, 5, 6 (±) Comments AC Voltage3 – Measure (cont) 10 mV to 10 V (10 to 100) V (100 to 700) V Up to 10 kV (10 to 70) kV (1 to 40) Hz 40 Hz to
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G.T. Michelli Company, LLC - HARAHAN
Harahan, LA, US
Scope
II. Electrical DC/Low Frequency Parameter/Equipment Range CMC2, 6 (±) Comments DC Voltage – Generate3 Fixed Point Up to 220 mV (0.22 to 2.2) V (2.2 to 11) V (11 to 22) V (22 to 220) V
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SIMCO Electronics - Greensboro
Greensboro, NC, US
Scope
Parameter/Range Frequency CMC2, 5, 6 (±) Comments AC Voltage – Measure3 (10 to 100) mV, Locked on 100 mV Range 100 mV to 1 V (1 to 10) V (10 to 100) V (100 to 700) V (1 to 85) kV 40 Hz to
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BHD Test & Measurement
Thornton, CO, US
Scope
V. Time & Frequency _________ 1 This laboratory offers commercial calibration service and field calibration service. 2 Calibration and Measurement Capability (CMC) is th e smallest uncertainty of measurement that a laboratory can
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LAW Calibration
Saco, ME, US
Scope
Parameter/Equipment Range CMC2, 4 (±) Comments DC Voltage – Generate (0.00 to 120) mV 120 mV to 1.2 V (1.2 to 12) V (12 to 120) V (120 to 1020) V 0.0009 % + 0.8 µV 0.0006 %
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Showing labs 101–150 of 336.
Each lab page shows which of its certificates are active.