National and international accreditations/certifications as reported to CHTA by individual members and denoted here by ● :

Member
ISO 9001:2015
ISO 14001
AS 9100/AS EN 9100/
BS EN 9100
Nadcap
Other
Aalberts Surface Technologies Heat Ltd, Blackburn ●
●
CQI-9
Aalberts Surface Technologies Heat Ltd, Birmingham ●


CQI-9
Aalberts Surface Technologies Heat Ltd, Letchworth ●
● ●
Aalberts Surface Technologies Heat Ltd (Nitriding Services) ●
● ●
Aalberts Surface Technologies Heat Ltd (Nitrotec Services) ●


CQI-9
ADI Treatments Ltd ● ●     ISO 18001:2007
Ajax Tocco International Ltd ●        
Alloy Heat Treatment Ltd ●
● ● ● CQI-9
Alpha-Rowen Ltd
●




Bodycote Heat Treatments Ltd, Chard ● ● ● ●  
Bodycote Heat Treatments Ltd, Coventry ● ● ● ●  
Bodycote Heat Treatments Ltd, Derby ● ● ● ●  
Bodycote Heat Treatments Ltd, Macclesfield ● ● ● ●  
Bodycote Heat Treatments Ltd, Rotherham ●   ● ●  
Bodycote Heat Treatments Ltd, Skelmersdale ● ● ● ●  
Bodycote Heat Treatments Ltd, Stillington ●   ● ●  
Bodycote Heat Treatments Ltd, Stockport ● ● ● ●  
Century Heat Treatment & Plating Co Ltd ●        
Flame Hardeners Ltd ●        
Heat Treatment 2000 Ltd ●       ISO/TS 16949/CQI-9
Heat Treatments (Northampton) Ltd ●       CQI-9
Kepston Ltd ●   ●    
KTH Holts Ltd ●

●
Mat-Tech Joining Technologies Ltd ●      
MTE Heat Treatment Ltd ● ●     CQI-9
Quality Heat Treatments Ltd ● ●      
Site Heat-treatment Services Ltd ●        
Special Steels Ltd ● ●   ●  
Summitglow Ltd (Harleston St.) ●        
Summitglow Ltd (Windsor St.) ●
       
Tamworth Heat Treatment Ltd ●   ●    
Techniques Surfaces (UK) Ltd ●        
Thermal Hire Ltd, Wigan ●        
Thermal Hire Ltd, Hartlepool ●        
Wallwork Heat Treatment Ltd ● ● ● ●  
Wallwork Heat Treatment (Birmingham) Ltd ●   ● ●
 
Wallwork Cambridge Ltd ●
● ●
Wallwork Newcastle Ltd ● ● ●

Member
ISO 9001:2015
ISO 14001
AS 9100/AS EN 9100/
BS EN 9100
Nadcap
Other