Advisory services relating to energy efficiency; Air flow measurement services; Advisory services relating to building design; Advisory services relating to the use of energy; Air flow consulting services; Air flow measurement services; Benchmarking (technical testing); Building and structural inspection services; Commissioning (test and inspection) services; Consultancy in the field of energy saving; Evaluation of performance against benchmark references; Industrial inspection; Inspection (testing) of commercial installations; Inspection (testing) of domestic installations; Inspection (testing) of industrial installations; Inspection (testing) of plant and machinery; Inspection of the condition of electrical equipment; Machine condition monitoring; Measurement services; Technical testing services; Testing, analysis and evaluation services relating to the application of industry standards; Testing, analysis and evaluation services relating to the application of commercial standards; Preparation of technical reports