Staffordshire Hydraulic Services Ltd  (Stoke-on-Trent)
	S B P Marine  (Bewdley)
	Safety Systems UK Ltd (IMI Bailey Birkett)  (Manchester)
	SAI (GB) Ltd  (Basildon)
	Samhydraulik UK Ltd  (Warrington)
	Sapphire Hydraulics Ltd  (Birmingham)
	Sarum Hydraulics Ltd  (Salisbury)
	SAS Ltd  (St Helens)
	Sauer-Danfoss Ltd (previously Sauer Sundstrand)  (Swindon)
	Saunders & Weeks (Bristol) Ltd  (Bristol)
	Seal Jet UK Ltd  (Bridgend)
	Seal Parts Ltd  (Dudley)
	Seaward Management & Design  (Hayling Island)
	Seaway Group  (Falmouth)
	Sellarc (Southern) Ltd  (Turriff)
	Selvin Fluid Power Ltd  (Ashford)
	Sensor Technology Ltd  (Banbury, UK)
	Sensorbility Ltd (formerly Sensor Consultants Ltd   (Salcombe)
	Sheffield Hydraulic Engineering  (Sheffield)
	Shell International Ltd  (London)
	Shell UK Oil Products Limited   (Wythenshawe)
	Shore Hydraulics Ltd  (Peterhead)
	Silicair Dryers Ltd  (Staines)
	Silvent UK Ltd  (Clacton-on-Sea)
	Simm Engineering Group  (Sheffield)
	Slack & Parr Hydraulics Ltd  (Derby)
	SMAC Europe Ltd  (Crawley)
	Smallman Lubricants  (West Bromwich)
	SMC Pneumatics (UK) Ltd  (Milton Keynes)
	Snaptite Europe BV
	Socomit Ltd  (Brentford)
	Southernair Systems Ltd  (Southampton)
	Southshields Hydraulics Ltd  (South Shields)
	Sovereign Lubricants (Yorkshire) Ltd  (Nr Brighouse)
	Specialist Heat Exchangers Ltd  (Lincoln)
	Specialist Hose Associates Ltd  (Leeds)
	Spectrum Hose Ltd  (High Wycombe)
	Speedflow UK
	SPX Fluid Power  (Romford)
	Stanstead Fluid Power Ltd  (Stanstead)
	Stapleford Hydraulic Co Ltd  (Nottingham)
	Star (Gloucester)  (Barnwood)
	Staubli Unimation Ltd  (Telford)
	Stauff Group Ltd  (Sheffield)
	Steerforth Sales Ltd  (Aldershot)
	Sterling Mechanical Seals  (Crewkerne)
	Stimulus  (Southampton)
	Strumech Engineering Services Ltd  (Walsall)
	Sullair UK (Advanced Compressor Engineering Ltd)  (Huddersfield)
	Sun Hydraulics Ltd  (Coventry)