The Building Compliance Testers Association was founded with one goal in mind - to improve the quality of construction through testing & verification. The BCTA is made up of many companies, each performing a vital role, from ATTMA UK providing a competent businesses scheme for companies carrying out blower door testing, to SITMA, authorising individuals to conduct sound insulation testing, through to BCTA IT services, providing the 'technology glue' joining all of the schemes together and gathering mass amounts of data.