[4] Ember's first route, numbered the E1[a], between Dundee and Edinburgh, was planned to start operating in March 2020, but this was set back by the COVID-19 pandemic delaying the delivery of its first coach.

[2] Ember received a £490,000 Coronavirus Business Interruption loan via Triodos Bank, which allowed it to launch in October 2020 with two coaches.

[7] In February 2022, Ember was awarded £5,562,126 from the Scottish Zero Emission Bus challenge fund for 26 battery electric vehicles and associated charging infrastructure.

In highlighting the significance of the order, co-founder Pierce Glennie emphasizes that their current Yutong TCe12 coaches have demonstrated high reliability, which has allowed them to develop an extensive zero-emission route network in less than three years.

In January 2024, the company introduced a new "short but useful" service between Dundee Michelin Scotland Innovation Parc & the city centre.

Ember introduced the E10 service to enhance local connectivity, covering trips to and from its depot which would otherwise be dead mileage.

Stops at Longforgan, Horn Milk Bar, St Madoes and Walnut Grove will only be operated by the short service which terminates in Dundee.

Tickets can be bought in advance on Ember's website up to 10 minutes before the scheduled departure time, but are also sold onboard at some stops.

[22] Ember was also awarded funding in March 2021 for four single-deck Arrival buses,[23] the development of which was ultimately postponed in 2022.