A blue
Flag
Company
Country
Rederi A/B Amphion
Sweden
Anders Utkilens Rederi A/S, Bergen
Norway
Action S.A. Argentina
Al-Jazy Shipping and Forwarding Jordan
Agencias Marítimas Agental Chile
Austroship G.m.b.H., Vienna
Austria
"Atlantic" (ship, 1819-1862) United States
Rederi A/B Avena
Sweden
W.H.J. Alexander Ltd. UK
Fritz Andreasen, Bodo
Norway
Aliwal Steamship Co., Cape Town  South Africa
C.R. Davidson & Co. UK
Pioneer Line of Australia Packets United States
Atlantic Reederei R & W Joch K.G., Hamburg
Germany
Aros Line, Vasteras
Sweden
Avenue Shipping Co. Ltd, London.
UK
Acties, Dampk, Atalanta (M.Nissen), Copenhagen

red flag, white cross, aver all stylized blue "A". Same type of "A" was used by the Danish Asiatic Company after 1802.
Denmark
Agencias Marítimas Agental Chile
Allan Börjessan
Sweden
Ministry of Agriculture & Fisheries New Zealand