A small history about Econofreight I came across.
The firm of Econofreight was a specialist in the Heavy Haulage sector in the UK in the 1980s, and 90s before being sold off to ALE by the then owner, Brambles group of Australia.
Econofreight absorbed several well known names in the Heavy Haulage field over the years and a lot of well know trucks passed through there hands. Several are in preservation in the colours of either Econofreight or one of the other famous owners.
The firm of Wynns merged with Sunters in about 1986 to form United Heavy Transport, who then merged with Econofreight which then rebranded as Econofreight Heavy Transport Ltd. This was then brought by Brambles Group of Australia to add to there engineering divisons (which include some of GKN operations). Later they sold Econofreight off to ALE after splitting some operations off. Brambles sold a lot of the STGO cat2 Trucks and trailers to SARENS of Belgium UK subsidary, who had also acquired the well known heavy haulage firm of GE Curtis.
An interesting fact is that ALE’s boss Roger Harris started his life working for Wynns.
Source: Econofreight | Tractor & Construction Plant Wiki | Fandom