British Standards Institute (BSI)
William Johnston & Company Limited has BS EN ISO 9001:2015 certification and maintains ongoing quality assurance checks throughout the manufacturing process. Our customers know with William Johnston & Company Limited that they can have complete confidence in the quality of the product. Full traceability can be provided and we are happy to work with our customers quality departments in ensuring their requirements are adhered to.
We are founding members of the UK Gasket & Sealing Association and uphold the values and codes of practice the Association demands.
The Pipeline Industries Guild (PIG)
The PIG represents the pipeline industry and infrastructure sector in the UK and worldwide and William Johnston & Company Limited are members of the Scottish Branch.