The Irish Times has the self-declared amounts spent by the various parties and groups on the Lisbon II campaign.
AT LEAST €3.5 million was spent by the main groups campaigning for and against the Lisbon Treaty, while the Referendum Commission spent under €4 million. Political parties said they spent about €1.47 million, including contributions from European Parliament groups, while various civil society groups and corporations revealed spending of about €2 million.
From the IT report
The cost: what the main groups spent
YES
Fianna Fail €500,000
Fine Gael €300,000
Labour €200,000
Green Party €13,000
Ireland for Europe €500,000
Ryanair just under €500,000
Intel €300,000
We Belong €250,000
Ibec €150,000
Generation Yes €30,000
NO
Cóir €250,000
UKIP €190,000
Libertas €100,000-€120,000
Sinn Féin €100,000
Socialist Party €55,000-€60,000 No To Lisbon €30,000
People’s Movement €20,000
People Before Profit Alliance
under €10,000
National Platform €3,000
OTHER
Referendum Commission under €4 million
Department of Foreign Affairs €700,000
European Commission at least €150,000
Figures supplied by individual parties and groups