2 Sisters Food Group (environmental)
Ablestick, Cambridge (freezer monitoring)
AKZO Nobel, Gateshead (production)
Avon Cosmetics (freezer monitoring)
Brookside Foods, Maryport (freezer monitoring)
Calor Gas, Lemington Spa (gas monitoring)
Cara Technologies (environmental)
Chemring Ltd, Salisbury (environmental)
Clader Foods, Carlisle (oven/freezer monitoring)
Claveham Ltd, Bristol (production environment)
Cleveland Fire Brigade, Middlesbrough (environmental)
Cooper Vision (freezer monitoring)
Corus Steel, Middlesbrough (environmental)
Cranstons, Penrith (freezer/production monitoring)
Delphi Diesels Ltd, Cirencester (furnace monitoring)
Eddie Stobart, Warrington (warehouse environmental)
Greyfriars Mushrooms, Ripon (cold room monitoring)
GT Group, Peterlee (production monitoring)
Haliburton (oil/gas)
Hammerite Paint, Prudhoe (electricity)
Haribo, Pontefract (production environmental)
Hayters, Harlow (environmental)
HB.Fuller, Stalybridge (production monitoring)
Hiltfields, Attlebrough (freezer monitoring)
Honeytop Foods, Luton (oven monitoring)
Howarth Air Technology, Bolton (environmental)
IKM Testing (oil/gas)
Indetherm, Rotherham (production monitoring)
Integrated Water Services, Stafford (electricity/water)
Jack Moody, Wolverhampton (composting)
Jaguar Cars, Liverpool (oven monitoring)
JK Thompson (freezer monitoring)
Karro, Haverhill (enviromental)
Karro, Scunthorpe (environmental)
Kerry Foods, Durham (oven/freezer monitoring)
Leeds University, Leeds (environmental)
M.O.D. Salisbury (environmental)
Mackintosh School of Art (environmental)
Macphie Foods (enviromental)
Manchester City Council (environmental)
MBDA (environmental)
National Grid, City Road (environmental)
National Grid, Doncaster (environmental)
National Grid, Elland (environmental)
National Grid, Newcross (environmental)
National Grid, Snowdonia (electricity)
National Grid, Wimbledon (environmental)
Natural History Museum, London (environmental)
Northern Engineering Sheffield (furnace/ oven)
Polypipe (environmental)
PPG Aerospace, Shildon (freezer monitoring)
Redcar & Cleveland Council, Middlesbrough (environmental)
Somers Forge, Halesowen (furnace)
Suez UK, Buxton (composting)
Suez UK, Ellington (composting)
Technip (oil/gas)
TH Clements (freezer monitoring)
The National Trust, Chartwell (freezer monitoring)
The National Trust, Hampstead Heath (environmental)
TTE, Newport (production environment)
Tulip Bacon, Morecambe (oven/freezer monitoring)
USA Embassy, London (environmental)
USA Embassy, Paris (environmental)
UTC Aerospace, Banbury (environmental)
Vesuvius, Chesterfield (furnace)
Vion Foods, Haverhill (production environment)
Whitehead Alloys, Middlesbrough (environmental)
Wrights Pies, Crewe (oven/freezer monitoring)