The CEF is the only certified employers organisation for the construction industry based in Northern Ireland. It has a membership of?over 1300 companies of all sizes and across all sectors of the construction industry. Mills Contracts, as a member of the CEF, benefits from a wide range of services including best practice advice on Health & Safety, Employment, Planning, and Tendering. In turn these benefits are passed onto the company's clients.

As members of constructionline this service provides potential customers, clients and design teams etc... with up to date information on the company. Information such as tax details, health and safety, registrations and other various items are provided through this service. It also provides information on turnover and work categories for the company. Constructiononline Members Membership no NI 67214.

Safe-T-Cert is a third party accredited health and safety scheme developed jointly by the Construction Employers Federation in Belfast and the Construction Industry Federation in Dublin. It was developed from the 18001/2 documentation but enhanced specifically for the construction industry. It is based on ‘best practice’ requirements for international and national bodies, including ILO guidelines. Safe T Cert Members Membership no NI 1057108.