Leading Calibration Services Companies
Custom Calibration Inc.
North Haven, CT | 203-484-3707Custom Calibration specializes in on-site and laboratory calibration which will keep costly equipment downtime to a minimum and maximize your overall productivity. We have over 30 years of experience providing calibration services for mechanical, dimensional, scale, torque, humidity, and many more applications. Our company’s mission is to achieve total customer satisfaction by providing prompt, ...

Calibration Laboratory, LLC
Merrillville, IN | 800-373-1759ISO/IEC 17025:2017 & ANSI/NCSL Z540.3 Accredited Laboratory. Electronic, dimensional, physical and thermodynamic calibrations performed onsite and in our lab. Professional ASQ Certified Calibration Technicians. We support the manufacturing and service sectors including; aerospace, automotive, chemical, electronic equipment, energy, food, industrial, machinery, medical, metal, military, nuclear,...

Continental Testing
Union, OH | 800-648-5091Continental Testing specializes in calibration, repairs, and testing services for the aviation industry. We have dimensional, electrical, lighting, physical, chemistry, and avionics testing capabilities. We offer on-site testing in at least 30 states and provide expert services in aviation, railroad, plumbing, electronics, tool & die, and construction sectors.

Accura Calibration
Garland, TX | 972-278-7878Accura Calibration is a full-service calibration lab with a very extensive list of capabilities. Our NIST Traceable calibration services are timely & accurate, and we maintain ISO 17025, ISO 9001, ANSI Z540.1 and ANSI Z540.3 certification/accreditation.

Sierra Instruments
Monterey, CA | 831-373-0200Sierra provides accurate calibration services for mass flow meters and controllers, insertion thermal flow meters, vortex, and ultrasonic flow meters. With more than 40 years of expertise in gas, air, or liquid flow calibration, you can count on our team to make sure your flow meter operates with efficiency and pinpoint accuracy. We believe in providing personalized and customized service, and...

Constellation PowerLabs
Wilmington, IL | 800-971-5227In a world where precision is paramount, Constellation PowerLabs stands as a beacon of trust, offering calibration services that transcend mere measurements. We are a partner in progress, working hand-in-hand with organizations to enhance their operations through the lens of accuracy, quality, and reliability. When you choose Constellation PowerLabs, you choose a steadfast commitment to...

G.T. Michelli Company, Inc.
Harahan, LA | 504-733-9822At G.T. Michelli, we pride ourselves on offering a comprehensive range of products and services that cater to a wide spectrum of needs. Our calibrated equipment and instruments ensure that businesses across various sectors can maintain accuracy, consistency, and compliance with industry standards.

A.A. Jansson
Waterford, MI | 248-674-4811A.A. Jansson, Inc.'s metrology standards and precision equipment calibration services have been providing customers with complete confidence confidence in instrument and equipment accuracy for more than 50 years. Measurement and test equipment accuracy is critical to the quality of your production and regular precision calibrations are essential to ensure ongoing reliability. Our calibrations are ...

AALFA-KAL Metrology Laboratory
Orangeburg, NY | 845-770-3000AALFA-KAL Metrology Laboratory, division of Aalborg Instruments & Controls, offer calibration services on meters and controllers on various products. Our laboratories are fully equipped to perform NIST traceable flow calibrations for rotameters, mass flow meters and mass flow controllers. We can also calibrate NIST traceable approved “in-house” equipment to certify our primary calibration...

ACR Technical Services, Inc.
Newport News, VA | 866-487-3227ACR performs ANSI/Z540, A2LA and ISO 17025 calibration services, which include, but are not limited to, pressure, vacuum, fiber and electrical. We also hold NAVSEA certification. We offer calibration testing services and software as well as instrument calibration. On-site or off, ACR can support your needs.

American Scale & Equipment Co., Inc.
Baltimore, MD | 800-225-2623As an Independent Dealer, we offer calibration services on high precision equipment. Services include assistance with industrial automation, data collection, PLC integration, and weighing system design. American Scale has been serving the Mid-Atlantic area since 1975. We sell truck scales, bench scales, counting scales, crane scales, floor scales, indicators, checkweighers, scale repair and...

AppMet, Inc.
North Charleston, SC | 800-608-5570AppMet calibrates and tests all types of electronic and electrical test equipment from Multimeters to RF Spectrum Analyzers. With precision, fast turnaround and attention to your certification and testing needs.

Assurance Technologies, Inc.
Bartlett, IL | 630-550-5000Since 1955, Assurance Technologies has been a leading calibration service provider for tools and gages. We perform instrument calibration, laser alignment, temperature calibration, electronic calibration, hand gage calibration, torque calibration, pressure calibration and much more. ISO/IEC 17025:2005 Accredited.

Bio-Tek Services Inc.
Richmond, VA | 800-792-3625Bio-Tek Services is a USA-based premium in-lab and mail-in pipette repair, calibration and certification service. Our focus is on the critical needs of the modern calibration lab. We specialize in providing expert repair, precise calibration and detailed documentation of all brands and types of Pipettor.

Bobier Tool Supply
Flint, MI | 800-288-2871Bobier Tool Supply performs calibration services for inspection equipment—height gages; optical comparators; shadowgraphs plus manual and video CMMs. We offer high-speed grinding and manufacture metrology equipment. Our calibrations are to NIST standards and QS 9000/ISO 9000 accredited.

Brunson Instrument
Kansas City, MO | 877-632-7873We provide calibrating services for optical tooling and other precision instruments in addition to the production of such devices. Our calibration laboratory is ISO/IEC 17025:1999 accredited plus meets ISO 10012-1, ASME NQA-1 1989, ANSI/NCSL Z540-1, and MIL-STD 45566 2A standards.

C & C Technologies, Inc.
Apex, NC | 866-938-3782Since 1995, C & C has been providing companies with refurbished environmental test chambers. Services include scientific equipment, temperature, humidity, thermal shock and ESS system service plus fully equipped testing. We provide service contracts to companies in North Carolina only.

CCSi, Inc.
Akron, OH | 800-742-8535For calibration services and maintenance, call CCSi. We have an ISO/IEC 17025 Accredited Calibration Laboratory in order to calibrate durometers, cutting dies, gauges, thermocouples, thermometers, pressure transducers, ovens and environmental chambers, as well as to perform other instrument calibrations.

Central Carolina Scale, Inc.
Sanford, NC | 919-776-7737Central Carolina Scale offers industrial and consumer scales and customized weighing systems as well as sales, service and calibration of weighing scales and balances.

Dorsey Metrology International
Poughkeepsie, NY | 845-849-0006Dorsey Metrology is pleased to announce the recent accreditation of its calibration laboratory to ISO 17025:2005 status. This accreditation allows Dorsey to perform ISO 17025 calibration for our optical comparators, dial indicators, digital indicators, ID/OD gages and masters, depth/height gages and masters, and thickness gages and masters, both old and new. For more information, call today.

Edgetech Instruments, Inc.
Hudson, MA | 508-263-5900Edgetech Instruments designs and manufacturers accurate, reliable absolute humidity hygrometers, relative humidity transmitters, humidity probes, moisture and dew point analyzers, relative humidity calibrators, dew point generators and oxygen measurement instrumentation. Edgetech Instruments products are manufactured, calibrated and serviced to the highest industry standards in a modern, ISO...

Endress / Hauser Inc.
Greenwood, IN | 888-363-7377Since 1953, we have been committed to continuous innovations in level measurement technology. Our Liquiphant vibrating level switch, invented in 1968, is world renowned. Our variety of continuous & limit level switches for liquids & solids gives you many options to streamline your processes. Endress+ Hauser offers measuring instrument products for the industrial process engineering industry.

ETI Precision
Frederick, MD | 410-857-1880ETI is a leader in the calibration of critical test and measurement equipment. Our NIST-traceable calibration services encompass a wide variety of electrical, mechanical, radio frequency (RF), pressure, physical-dimensional, and environmental instrumentation. As a long-term manufacturer of circuit breaker testers, we also have specialized knowledge, tools, and expertise calibrating high-current...

FasTest® Inc.
Roseville, MN | 800-444-2373ISO 9001:2015 certified manufacturer of calibration equipment including transmitters, control valves, gauges & pressure sensing instrumentation for the oil refinery, power generation, paper processing, pharmaceutical & cosmetic manufacturing industries.

FTI Flow Technology, Inc.
Tempe, AZ | 480-240-3400Our laboratory's calibrating services are performed for flow meters; NIST traceable; conducted for primary standard liquid and gas flow. We also manufacture precision flow metering instruments, ancillary electronics, plus liquid and gas flow calibrators.

Furness Controls
Indian Trail, NC | 800-898-5325If you are looking for the best calibration services in the industry, you’ve come to the right place! We have 30 years of experience in the industry, and many of our original products are still in working order to this day. You won’t find better quality products anywhere else. Look to our website for more information and details today!

Graftel LLC
Roselle, IL | 847-364-2600Graftel maintains a complete calibration lab for gas flow, liquid flow, air velocity, RH/dew point and temperature. Calibration work is accredited to ISO 17025 and performed in compliance with ANSI/NSCL Z540-1-1994 requirements. Laboratory equipment is maintained in accordance with MIL-STD-45662A.

HABCO, Inc.
Glastonbury, CT | 888-422-2647HABCO, Inc. designs and manufactures calibration and testing supplies for industry, aerospace and many other applications. We will utilize over 35 years of experience to bring you high-quality equipment calibration products. Allow our dedicated engineers to design for your testing needs.

Hamar Laser Instruments, Inc.
Danbury , CT | 800-826-6185Hamar Laser Instruments, Inc. has been a leader in calibration and testing equipment for 35 years. We can design laser alignment systems and other calibration and testing equipment. Our lasers are known for their accuracy and reliability. Let us design, manufacture or service your equipment today!

Hoffman Engineering
Stamford, CT | 203-425-8900Hoffman Engineering offers a variety of calibrating services as well as certification services. We specialize in equipment calibration, laboratory calibration and testing that has been produced with innovative software to ensure your exact measurements are met.

IET Labs, Inc.
Roslyn Heights, NY | 800-899-8438IET Labs performs calibration services such as pressure calibration, no matter the manufacturer. We are compliant with A2LA, IS0 9001, ISO 17025, ANSI Z540-1-1994 and MIL-STD-45662A. R-C-L, RTD standards and decades, voltage and current source, strobes audio.

Instron® Corporation
Norwood, MA | 800-877-6674Instron® offers unmatched capability in force and hardness calibration plus other verifications, including temperature, strain, speed, displacement and torque. Calibration software is pre-tested. Lab/field services meet or exceed ASTM and ISO. Accredited to ISO 17025 by NVLAP (lab code 200301-1).

Integrated Scale Systems
Fairfield, NJ | 888-893-1010Integrated Scale Systems is a leading supplier of industrial scales, laboratory scales, balances, scale calibration and scale repair. Integrated Scale Systems is an ISO 9001:2008 certified company and services the entire Tri-State area. Products include: floor scales, platform scales, lab scales, counting scales and more. Expert scale calibration and repair with 24 hour service available.

Micro Quality Calibration Inc.
Chatsworth, CA | 818-701-4969At Micro Quality Calibration we are considered the first western commercial laboratory designed for precision measurements. Since 1978, our calibration laboratory & repair facility has done instrument calibration & equipment calibration. Calibration is done under strict controls. A2LA ISO/IEC 17025:2017 certified. We are successful because we provide the best service and are committed to...

Northeast Metrology Corp.
Depew, NY | 716-827-3770Northeast Metrology offers a wide range of calibrating services. We provide electrical calibration, mechanical/dimensional calibration, pneumatics calibration and temperature calibration for a long list of items. Calibration equipment complies with the ISO/IEC 17025:2005 International Standard.

Precision Calibration Systems
Morristown, TN | 866-521-3823Total customer satisfaction is our promise here at Precision Calibration Systems. If you’re looking for fast and accurate calibration services, you’ve come to the right place. The scope of our capabilities includes analytical balance, caliper, digital thermometer, electrical measure, electrical source, hardness testers, micrometers and so much more. Contact us today!

Precision Custom Components
York, PA | 717-848-1126Our capabilities include manufacturing pressure vessels, autoclaves, ASME tanks, nuclear fuel casks, nuclear reactor vessels and other specialized process equipment. We specialize in heavy precision metal fabrications for industrial, commercial and government use. Call us today.

Precision Technologies Inc.
Crestline, OH | 419-683-8029We do inspection, certification, and tooling, along with our calibrating services. Precision Technologies, Inc. is an ISO/TEC 17025 certified calibration laboratory offering precision measuring services on certified metrology equipment. In addition, we offer new and used calibration equipment.

R.A. Electrical Services
GLENDALE, CA | 818-686-0500R.A.E.S. Calibration Services has served the industry with calibration, repair and N.I.S.T. Traceable certification of electrical, electronic, medical, optical, telecommunication, test instrumentation for many years; catering for most specialized parameters such as porosity, pH, ultrasound, Ultraviolet, infrared, visible light, absolute power, attenuation, insertion loss, return loss,...

S. Himmelstein and Company
Hoffman Estates, IL | 800-632-7873S. Himmelstein and Company provides accredited ISO/IEC 17025:2017 calibrations from 10 ozf-in to 4 million lbf-in. The 4,000,000 lbf-in stand is one of only four worldwide that are accredited for calibrations above 1,000,000 lbf-in and has the lowest measurement uncertainty of any. We have nine accredited stands that provide optimal measurement uncertainty and avoid queuing. Calibrations are made ...

Stephens Analytical, Inc.
Montreal, QC | 800-267-7474Stephens Analytical specializes in humidity instrument calibration services and has a calibration laboratory. Since 1982, we have been producing calibrating dew point indicators, hygrometers, relative humidity meters and trace moisture analyzers. Our lab is ISO/IEC 17025 accredited.

Strainsert Company
West Conshohocken, PA | 610-825-3310What began in 1960 as a company providing internal strain gage installation processes; soon became Strainsert, known for unrivalled internally gaged force transducers. Strainsert focuses on providing load cells that offer the most efficient responsiveness that can be counted on to stand up to the rigorous applications of frequent usage. As leaders of our industry we have made it our mission to...

Thermalogic® Corporation
Hudson, MA | 800-343-4492Since 1971, Thermalogic has been a leading manufacturer of electronic temperature and humidity control and sensors. Here at Thermalogic we work with our clients in a partnership to build a lasting business relationship. All of our products have quick turnaround times, including custom designs, and are thoroughly tested prior to being sent out. At Thermalogic we pride ourselves on our high...

Transcat, Inc.
Rochester, NY | 888-979-5645We offer expert A2LA-accredited calibration services for all types of calibration, test, and measurement instruments including calibrators, temperature calibration, electrical, electronic, pressure, physical, mechanical and RF instruments. Located across North America.

Van F. Belknap Company, Inc.
Wixom, MI | 800-240-8077For over 55 years, our company has provided calibration services and repair services. We can calibrate most torque wrenches in addition to manufacturing them. Our certification of accuracy is standard and our calibration lab is available for your use. We can calibrate and certify any torque product.
