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

Member
ISO 9001:2015
ISO 9001:2008
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






Beta Heat Treatment 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, Skelmersdale
 
Bodycote Heat Treatments Ltd, Stillington
   
Bodycote Heat Treatments Ltd, Stockport
 
British Heat Treatments
     
Century Heat Treatment & Plating Co Ltd
       
Clayton Thermal Processes Ltd
       
Express Heat Treatments          
Flame Hardeners Ltd
       
Heat Treatment 2000 Ltd         ISO/TS 16949/CQI-9
Heat Treatments (Northampton) Ltd
      CQI-9
Howco Special Processing
     
Keighley Laboratories Ltd
  BS EN ISO 17025
Kepston Ltd
     
KTH Holts Ltd



Mat-Tech Services 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 9001:2008
ISO 14001
AS 9100/AS EN 9100/
BS EN 9100
Nadcap
Other