To place an entry in this Directory or advertise :
Contact John Harvey, Sales Manager, Concorde Publishing Ltd
Tel: +44 (0) 20 7863 3077
email: John Harvey
Welcome to TestHouseDirectory.com
This website is the online companion to the highly successful Test House Directory. It is designed to help test & measurement and design & development engineers find companies that can provide the testing service, or product they need, in the location and at the time that they need it.
Print edition
2025 saw the publication of the 28th edition of Test House Directory which contained 750 categories of test and a wide range of companies listed. The 29th Edition, Test House Directory 2026 will be produced soon.
Digital edition
As well as the print and online formats, a mobile friendly digital edition is also produced. Test House Directory 2025 can be viewed by clicking here.
Special company subscription packages for 2026
These are now available and can include an online entry at TestHouseDirectory.com until 31st October 2027, an entry in our publication Test House Directory Extra and a full company entry within Test House Directory 2026. The package includes online, print and digital elements as well as significant social media coverage and distribution at key technology events.
It's easy for your company to be involved in 2026
Simply email to THD.com@concordepublishing.com and your company can appear online almost immediately.
TestHouseDirectory.com is produced by Concorde Publishing Ltd.
Top 10 Categories
Listed below are the Top 10
categories of test on the site
Just click on the category you
require to go immediately to
a list of companies that can
provide products and services.
With the 28th edition published in 2025, the Test House Directory brand is well established as the leading source of information about test houses, testing services and test equipment manufacturers. Available in print (for subscribers), digital and online formats, these combine to provide easy to use reference sources for test, measurement, design and development engineers. New company entries on TestHouseDirectory.com are easy to organise. For more information please contact us and we can send you an interactive pdf to complete your entry.