alt Hacker NewsFrom https://www.opensecrets.org/
Totals since 2016 Country Total Spending China $562,676,323 Japan $504,111,211 Liberia $432,968,270 Saudi Arabia $421,890,448 Marshall Islands $382,012,024 South Korea $363,237,700 Bahamas $293,205,139 United Arab Emirates $269,529,107 Qatar $269,260,794 Israel $215,168,616
So for small countries UAE and Qatar(no surprise here, they just gifted 1 billion airplane to Trump)
This excludes US based groups lobbying for Israeli interests, which does not count under official spending by Israel, so it is not an accurate representation of the lobbying effort in the interests of Israel.