Established in 1984, Mistral is proud to be widely considered the 'generic' software system provider for the refrigeration & air conditioning industry. In its domestic market, Mistral software is used by more than 85% of refrigeration & air conditioning contracting firms and programs have been distributed to over 25,000 users in over 140 countries around the world.


Mistral Associates believe that the logical procedures employed in its energy movement programs, developed as an ongoing project over a four decade period in conjunction with leading authorities and teaching establishments, go way beyond in terms of scientific accuracy, those in common usage by less specialised organisations. Mistral therefore has never sought the approval of other self appointed invigilators or certifiers from or partially covering related disciplines, nor has Mistral any intention of ever doing so. It is not believed this would serve any useful purpose.

Mistral’s load calculation programs are based upon principles as outlined by ASHRAE (American Society of Heating, Refrigeration and Air Conditioning Engineers) and simple manual checks by engineers with adequate experience or qualifications may be used to prove program veracity.

All data employed in Mistral programs and which is either in the public domain or which has been compiled from empirical information in both common usage and in the public domain is ‘transparent’ and may therefore be easily read from within the programs. Data may even be added to if required. By those with sufficient skills and confidence in their sources of information.

Mistral’s products carry guarantees as to their accuracy and scope of operation. More details of which may be read on Mistral’s 5,000+ page, multi-lingual websites.


All 103 Mistral 'Apps' (program executables) have been officially verified by Microsoft Corporation and 'Code Signed' for suitability and security for running under Windows computer Operating Systems.

Mistral's commitment:
Bringing the benefits of computerisation to our industry - without the historically associated problems.