Before operations were merged with Terberg Environmental, Dennis Eagle employed a workforce of over 600 across its two manufacturing sites and service network, which included nine depots as well as mobile engineers based throughout the UK.

[citation needed] In addition to domestic success, Dennis Eagle vehicles are now used globally, with their refuse collection trucks being sold in markets such as Australia, New Zealand, and parts of Asia, reflecting their growing international presence.

[1] Dennis Brothers had made specialised vehicles for municipal authorities from the early 1920s though they were primarily builders of chassis for buses, fire engines and haulage lorries.

It made oil and petrol internal combustion stationary engines and some small agricultural equipment and provided municipalities with refuse vehicles and road sweepers and tower lorries at relatively inexpensive prices sometimes built on Dennis chassis.

Soon after the start of the Great Depression Eagle turned from engines to building road trailers and semi-trailers for articulated vehicles.

[12][13] In 2019, Dennis Eagle introduced the eCollect, an all-electric refuse collection vehicle, aimed at reducing emissions and supporting sustainable waste management practices.

The eCollect has since been adopted by multiple local authorities in the UK, making Dennis Eagle a leader in environmentally friendly waste solutions.