ISO 17025 accredited calibration laboratory +49 7245 80475-0 info@inotech.eu
Home/Company

Precision, innovation and reliability since 1992

inotech is the leading international manufacturer of calibration systems for meters, focusing on gas, water, heat and electricity meters. Bietigheim site in Germany, inotech Spain in Barcelona.

The inotech team in front of the company building in Bietigheim

A focused company

inotech builds test and calibration systems for meters exclusively. This focus makes it possible to cover the entire flow and pressure range – from 16 l/h on a domestic gas meter up to 30,000 m³/h in the high-pressure closed-loop system.

Engineering, design, software development, manufacturing and acceptance are all in-house. The uniform user interface software links all system types, so operators can move between gas, water and heat test rigs.

Current development priorities are hydrogen test rigs, smart meter communication and optical detection methods.

Playing the video connects to YouTube. Our privacy policy applies.

FOUNDED1992 · Site Bietigheim, 76467 Germany
FOCUS100 % calibration systems for meters
ENERGY TYPESGas, water, heat, electricity
MEDIAAir, natural gas, hydrogen, water, further fluids
IN-HOUSE SCOPEEngineering, design, software and manufacturing under one roof
LABORATORYDAkkS D-K-23505-01, DIN EN ISO/IEC 17025:2018
INSTALLED BASEMore than 1,000 test rigs in over 70 countries
FLOW RANGE16 l/h to 30,000 m³/h · up to 66 bara
MEASUREMENT UNCERTAINTY± 0.193 % to ± 0.02 %, depending on the system
> 34 Jahre
EXPERIENCE SINCE 1992
> 1,000
TEST RIGS WORLDWIDE
> 70
COUNTRIES
ISO 17025
DAKKS D-K-23505-01

More than 34 years of calibration technology

1992
Founded
1998
First systems exported
2008
> 100 systems installed
2010
Standard user interface software
2011
First high-pressure closed-loop system
2013
Bietigheim site
2020
Expansion into water and heat
2021
inotech Spain, ISO 17025
2025
First H₂ test rig
2026
ZERA: electricity meter calibration technology

Memberships and commitment

ASSOCIATION

DVGW

German Technical and Scientific Association for Gas and Water – contributing to codes of practice in gas and water metering.

ASSOCIATION

ami e.V.

Agency for measurement quality and innovation – member of the measurement quality network.

NETWORK

Cyberforum & Energieforum Karlsruhe

Regional commitment in technology and energy networks of the Karlsruhe region.

CAREERS

Working on systems that run for decades

Design, control and software engineering, assembly, service and calibration laboratory – in Bietigheim every system is created entirely in-house.

Vacancies and apprenticeships on request.

YOUR CONTACT
Madeleine Marnett
HR and applications
personal@inotech.eu +49 7245 80475-0

Your contacts

Sales, service and calibration laboratory – assigned by energy type and region.

Ralf Schneiderat
Ralf Schneiderat

Sales

ralf.schneiderat@inotech.eu
David Yélamos
David Yélamos

inotech Spain Meter Calibration Systems S.L., Barcelona – electricity meter calibration systems

david.yelamos@inotech.barcelona
Stefan Weigelt
Stefan Weigelt

Sales

vertrieb@inotech.eu
Portrait of Bruno Oster to follow
Bruno Oster

Head of calibration laboratory · calibration to DIN EN ISO/IEC 17025 · +49 7245 80475-49

bruno.oster@inotech.eu

Sites in Germany and Spain

inotech Germany GmbH — Bietigheim plant
Obere Hardt 15, 76467 Bietigheim
Engineering, design, software, manufacturing and calibration laboratory
+49 7245 80475-0
inotech Germany GmbH — Registered office
Humboldtstraße 2a, 53639 Königswinter
Registered office and invoicing address · deliveries exclusively to Bietigheim
inotech Spain Meter Calibration Systems S.L.
Camí Ral nº 1, Parcela 8, Nave 4
08170 Montornès del Vallès, Barcelona
+34 936 070 605

Accreditation D-K-23505-01

DAkkS accreditation of inotech Germany GmbH as a calibration laboratory to DIN EN ISO/IEC 17025. Certificate and annexes for download, German and English.

DAkkS · DIN EN ISO/IEC 17025:2018 PDF
D-K-23505-01-00
COVER SHEET · 2 PAGES
D-K-23505-01-00
Accreditation certificate

DAkkS confirmation: calibration laboratory to DIN EN ISO/IEC 17025:2018, Bietigheim site. Valid from 12 Aug 2026.

DAkkS · DIN EN ISO/IEC 17025:2018 PDF
D-K-23505-01-01
CMC TABLE · 2 PAGES
D-K-23505-01-01
Annex 01 – electrical measurands

Time and frequency: frequency and rotational speed, 0.1 Hz to 100 kHz, also as on-site calibration.

DAkkS · DIN EN ISO/IEC 17025:2018 PDF
D-K-23505-01-02
CMC TABLE · 4 PAGES
D-K-23505-01-02
Annex 02 – thermodynamic and mechanical measurands

Direct-reading thermometers, relative humidity, pressure and gas flow – each also on site.