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J-Flex was introduced to Key Principles back in 2007. Since that time, Key Principles has provided on-going flexible, marketing support. Key Principles is primarily focused on digital marketing whilst the in-house marketing team work on more traditional marketing activities such as direct mail, brochure and product data sheet development, and exhibition and trade shows.  


With over 12 years’ experience working with J-Flex, the Key Principles’ team has a thorough understanding of J-Flex’ ambitions, mission, vision, and products and marketing. Working as a trusted marketing partner and advisor, in recent times J-Flex has increased the budget allocated to online advertising (Google Ads and Microsoft Advertising) and SEO, as well as email marketing.  

 Facebook Advertising has been tested and LinkedIn advertising is going to be trialled as the ambition manufacturer continues to push the boundaries with Key Principles help. 

 Key Principles is on-hand to answer queries as well as provide a sounding board for all areas of the company’s marketing activity.

Results shown are comparing year on year results after managing and optimising campaigns. 


  • 403% increase in enquiries 
  • 203% increase in enquiry rates 
  • 60% reduction in cost per enquiry 
  • 46% increase in click through rates 
  • 100% increase in spend

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