The logistics / supply chain industry tends to use the term "Reefer" for refridgerated type transportation.
If they each had Reefer in their names - you would be onto something.
/Fridge/Transport/ could possibly be valuable to a company that transports actual fridges. Although not sure how many companies are dedicated to just this.
/Frig/Trans/ - the word Frig, in England at least means, f*c*. This domain name takes on a whole new meaning
Good luck.