There are three levels of international participation.
The levels generally reflect the financial stake in the program, the amount of technology transfer and subcontracts open for bid by national companies,
and the order in which countries can obtain production aircraft. The United Kingdom is the sole "Level 1" partner, contributing US$2.5 billion, which was about 10% of the planned development costs
under the 1995
that brought the UK into the project.
Level 2 partners are Italy, and the
, who are contributing US$1 billion and US$800 million each respectively. Level 3 partners are
, US$195 million; Canada US$160 million; Australia, US$144 million; Norway, US$122 million and Denmark, US$110
. Israel and
have joined as so-called "
" (SCP)