The suspects, pictured, were seen entering shops in Hackney amid the worst civil disorder the capital has seen for a generation on August 8 2011.
Det Sgt Ian Coleman said: “A year on and we are still working hard to track down the people responsible for last summer’s disorder.
“I hope that someone somewhere will be able to identify [the pictured suspects].”
The man in the black cycle helmet was seen entering the Carhartt Outlet Store – a clothes store – on Ellingfort Road.
The man in the baseball cap was spotted entering Boots Opticians in Mare Street.
Anyone with information is asked to contact DS Coleman on 0207 275 3305, or Crimestoppers anonymously on 0800 555 111.
The London riots struck a number of boroughs between August 6 and 10 last year, sparked by a protest in Tottenham after police shot local man Mark Duggan.
Shops were looted and arson attacks common during the violence.
Image: Metropolitan Police