The postal workers union will this week take its campaign against controversial plans to privatise the Royal Mail to the offices of banks involved in the sell-off.
The Communication Workers Union (CWU) said it will target the headquarters of UBS, Goldman Sachs and Merrill Lynch during a bus tour across London.
Protests will also be held outside the Business Department, Ofcom and offices of the Conservative and Liberal Democrat parties, while a giant postcard opposing privatisation will be delivered to the Royal Mail.
Billy Hayes, CWU general secretary, said: "Royal Mail is thriving in public ownership, increasing its profits, providing good quality services and decent jobs. We want it to remain that way. Privatisation would be a throwback to the tired old politics of the 1980s.
"This week of action will take the uncomfortable truth to the doors of those who are working on flogging this national asset. Privatisation is unpopular, unnecessary and will be fought by a tide of growing opposition."
Politicians from Labour, SNP, Plaid Cymru, Green and SDLP parties took part in a packed meeting in Westminster last week amid growing warnings about the impact on jobs and services if the sell-off goes ahead.
Where are Britain's highest tax bills?
Royal Mail sell-off banks targeted
St Albans come in second on the list with a total income tax bill of £10,900 per person.
Windsor and Maidenhead came third with a total income tax bill of £10,200 per person.
The Surrey town of Guildford was fourth on the list with a total income tax bill of £9,830 per person.
England's capital city came fifth with a total income tax bill of £8,580 per person.
Wokingham has a total income tax bill of £7,490 per person. Putting it in sixth place.
Dacorum in Hertfordshire comes in joint sixth place with a total income tax bill of £7,490 per person.
The leafy towns of Reigate and Banstead have a total income tax bill of £7,000 per person.
Tonbridge and Malling take joint seventh spot with a total income tax bill of £7,000 per person.
Wycombe comes last in the top ten with a total income tax bill of £6,820 per person.
A small corner of leafy Surrey has taken the top spot in the league table of the highest income tax bills per person. Residents of Elmbridge pay an astonishing £1.18 billion in income tax every year. That puts a number of the major cities in the shade.
The leafy towns of Esher, Weybridge and Walton-on-Thames are filled with mansions, private estates, country clubs, golf courses, and riversides packed with millionaires. The proximity of Chelsea's training ground in Cobham has also brought well-paid sportsmen to the area.