Have noticed whilst looking for something else that the first batch of accounts for the year ending 31 December 2020 have started to appear on Companies House (the PDFs are too large, and not active, to link to directly, but they can be found by searching for the company at
https://find-and-update.company-information.service.gov.uk/. Like last year, I've taken the figures from the "Review of Business" section on page 4 of the respective PDFs, which is the amount before tax. The "government grants" figures seem to be the most likely way of working out any Coronavirus support, unless anyone more financially minded can correct me).
Durham County: Profit of £89,000 (2019: £1,836,000. Government grants of £11,664,000, 2019 £3,581,000).
Arriva London North: Loss of £2,509,000 (2019: Profit £5,562,000. Government grants of £4,015,000, 2019 £1,670,000)
Arriva London South: Profit of £5,146,000 (2019: £9,923,000. Government grants of £1,530,000, 2019 £759,000. Haven't read more closely to see why the discrepancy in the London companies)
Midlands: Loss of £881,000 (2019: Profit £330,000. Government grants of £13,379,000, 2019 £2,968,000)
Northumbria: Loss of £158,000 (2019: profit of £2,134,000. Government grants of £8,405,000, 2019 £2,333,000).
It almost goes without saying that the reasons for the changes are down to Covid, and in all cases are mitigated by Coronavirus Bus Service Support Grant and Coronavirus Job Retention Scheme payments.