The Source for Calibration Professionals
Isotech are the standard in temperature calibration and measurement. Developing innovative solutions for calibration facilities in over 125 countries.
Operating our own laboratory has given us a deep understanding of the challenges that organisations utilising temperature calibration and measurement devices face. Problems which we answer with our huge variety of calibration solutions.
45 Years of Excellence in Temperature Calibration
Trusted by National Labs, Innovating for Industry – Since 1980
World-Class Expertise & Innovation
ISO 17025-Accredited Primary Laboratory
World-class facility trusted by National Metrology Institutes (NMIs) and calibration labs globally. Delivering traceability and confidence at the highest level with lowest uncertainties of any privately owned lab.
45 Years of Proven Heritage
Established in 1980, with a trusted legacy of UK design and manufacture, backed by decades of innovation, reliability, and global client confidence.
Full Range of Calibration Solutions
By 1991, developed equipment for every area of temperature calibration, aligning with ITS-90 — still unmatched in breadth and depth.
Global Presence
Trusted by thousands of calibration professionals, Isotech exports to over 125 countries through a global network of experienced partners.
Highly Skilled Team
Globally recognised in temperature metrology, with in-house expertise spanning sensor and fixed-point cell design, precision manufacture, laboratory calibration, CAD, machining, production, and logistics.
Trusted by the Best — and by Many
Our clients range from National Metrology Institutes, NASA, and leading aerospace, energy, and pharmaceutical organisations, to small businesses and individual calibration professionals around the world.
Our Journey Through 45 Years of Innovation
The Beginning
- Isotech founded by John Tavener and family
- First product: thermocouple referencing system, supporting the UK’s nuclear generators
Early Innovation
- Launch of dry blocks (R Range), fluidised calibration bath, laboratory thermocouple furnace
- Established New Laboratory Building and Sensor Assembly Department
Accreditation Milestone
- Isotech laboratory gains BCS accreditation
- Acquired IP from Irving & Son for advanced liquid and salt baths
- Model 909 SPRT launched
Expansion Era
- Acquired IP from YSI for a range of Primary Metrology Solutions
- Product line expanded to support new ITS-90 scale
- Construction of new office and workshop facility
- Established separate design department and a fully equipped machine shop
Global Growth
- First of Isotech’s biennial global distributor seminars
- Launch of Isotech’s first website
- ISOCAL-6 Range of multifunction calibrators introduced
- Acquired IP for the Jarrett water triple point cells
Technology Leadership
- Launch of microK, the world’s leading thermometry bridge
- Introduction of ISOTowers: compact, high-performance fixed-point cell systems
Recognition & Achievement
- First export champion award
- Won world’s largest dry block contract (US Navy)
- Received Queen’s Award for Enterprise: Innovation
Modern Era
- New John Tavener Building opened
- New touchscreen thermocouple furnace, updated thermometry bridges
- New black bodies and liquid baths
- Even lower calibration uncertainties and additional calibration services
Key Achievements Over 45 Years
Laboratory First accredited in 1986
Approaching 40 years of continuous accreditation, lowest uncertainties of any privately owned temperature laboratory
Queen’s Award for Enterprise: Innovation
Recognized for outstanding innovation in temperature metrology
World’s Largest Dry Block Contract
Secured contract with US Navy, demonstrating market leadership
Global Reach
Exporting to over 125 countries worldwide
Global Leadership in Full-Range Temperature Metrology
Industry-leading fixed-point cells and calibration systems, spanning -196°C to 1300°C
Join Us in Celebrating 45 Years of Excellence
Discover how Isotech can provide world-class temperature calibration solutions for your specific needs.
CONTACT US TODAYWe are very proud of the contribution we have made to temperature metrology over the last 40 years and we are looking forward to what the 2020s will bring.
Performance and quality has always been our priority, helping us earn an excellent reputation for our products. Over four decades of operation, we have received recognition in the form of several major awards. Perhaps one of our proudest moments came in 2017 when we were awarded the Queen’s award for Enterprise for the development of the microK Thermometry Bridge.
Did you know Isotech have been named Export Champions five years in a row?
Our global network of sales agents has seen Isotech export our calibration solutions to over 125 countries worldwide. Successfully delivering and installing many complete laboratories across Europe, Asia and the Americas. Our client base is extensive including National Metrology Institutes, multinational corporations, U.S. government agency NASA through to sole traders.
Isotech has solutions for all calibration needs, from Primary Laboratories maintaining National Standards to the needs of field engineers calibrating industrial sensors on site.
Isotech manufactures the widest range of temperature calibrators from handheld thermometers to Primary Standards, we have the right equipment for your application.
Global Network with local support. Isotech has over 90 expert sales agents worldwide. No matter where you are, we can offer you the support you need.
Isotech have collaborated with innovative organisations across the globe, ranging from Astra Zeneca to NASA.
The world’s leading National Metrology Institutes choose Isotech – shouldn’t you?
Careers At Isotech
With an unsurpassed drive to continue to bring new innovations to market, Isotech will continue to invest in the pioneering the next generation of temperature calibration solutions.
Our values of quality, integrity and solution-driven underpin every activity that our team undertakes. Exhibiting these values in our behaviour allows us to form strong partnerships as a team and with our clients, whilst ensuring we always provide the best solutions.
Discover more about what a career at Isotech could hold for you.
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