The fullest yet account of the donations made to the campaigns for and against electoral reform reveal the extent of the Tory money funding the NO to AV group and the yes campaign's dependence on organisations such as the Electoral Reform Society.

Among around 50 donors to the NOtoAV campaign are several high-profile City figures, including hedge fund financiers, bankers and businessmen.

Lord Sainsbury donated £100,000 while Tory peer Lord Wolfson, the boss of clothing chain Next, gave £25,000.

Tory donor Jonathan Wood, a former star UBS trader who founded the hedge fund SRM Global, gave £50,000 to the NOtoAV campaign. He was the biggest shareholder in Northern Rock when it collapsed and he later tried to sue the government over its handling of the bank's nationalisation. He described the government's taking of controlling stakes in Lloyds and Royal Bank of Scotland as "theft".

A similar contribution to the campaign was made by Adrian Beecroft, a well-known figure in the venture capital industry. One of the three founders of private equity firm Apax Partners, he now chairs Dawn Capital and owns four Aston Martins.

Another £50,000 came from Alex Knaster, a Russian financier, who set up London-based Pamplona Capital Management with $1bn to help Russian firms invest overseas.

The former chief executive of Alfa Bank, Russia's largest private commercial bank, was part of a group of Russian investors who brokered a truce between BP and its partners in the TNK-BP joint venture in 2008.

Stockbroking and corporate finance group Shore Capital has given £25,000 to the campaign while hedge fund Odey Asset Management Group, founded by Crispin Odey in 1991, has donated £20,000. Odey, a former Barings banker, is one of London's leading hedge fund managers who awarded himself a £28m bonus in 2008 after predicting that the banks would fall and shorting UK bank stocks.

He previously found himself on the losing side when the US Federal Reserve unexpectedly lifted interest rates in 1994.

Odey is closely involved with the Conservatives and is married to Nichola Pease, who belongs to one of the Barclays founding families and is the deputy chairman of private wealth group JO Hambro. Like many hedge funders, he has threatened to relocate to avoid the 50% tax rate.

Tory donor David Mayhew, the former chairman of Cazenove - known as the Queen's stockbroker, which was taken over by JP Morgan in 2001 – gave £30,000 to the NOtoAV campaign.

Another donor, with £10,000, is Nick Finegold, who pocketed some £10m last year when he sold his share-dealing brokerage Execution Noble to Banco Espirito Santo de Investimento and became a vice-chairman of the Portuguese investment bank.

A similar contribution came from property developer Terence Cole, who founded Marcol with Mark Steinberg in 1976 and built it into a multibillion euro international property business.

Peter Hargreaves, co-founder of the financial services firm Hargreaves Lansdown, and the former Barclays finance director Naguib Kheraj also donated £10,000 each.

Of the £3,436,622 donations made to the Yes camp, £2,167,096 came from two organisations: the Joseph Rowntree Reform Trust and the Electoral Reform Society.

The ERS has a private subsidiary that administers elections in the UK and has been accused by the chancellor, George Osborne, of standing to profit from the referendum and a yes vote – something it strongly denies. Other campaign groups including Make Votes Count and Unlock Democracy have also given around £20,000 a piece to the campaign.

Only £506,000 of the total is accounted for by donations from companies and individuals – 14 in total. They include financing companies Brompton Capital – which has previously donated to the Liberal Democrats - and C&C Alpha Group.

Other Liberal Democrat donors listed include Paul Marshall, the hedgefund millionaire who is a longstanding donor to the Liberal Democrats. Alan Parker, the head of Brunswick PR, who has the famous distinction of being close to both Gordon Brown and David Cameron, is listed as is Neil Sherlock, partner in charge of public and regulatory affairs at KPMG.

The yes campaign has also received £330,119 in smaller donations, below the £7,500 mark and declares another £330,119 in donations in kind in the form of lent office space and seconded staff.

Full list of donors



NOtoAV

Peter Cruddas £400,000

Jonathan Wood £100,000

Michael Davis £100,000

Lord (John) Sainsbury £100,000

Michael Farmer £100,000

John Caudwell £75,000

Lord (Philip) Harris £75,000

Lord (Graham) Kirkham £75,000

FIL Investment Management Ltd £50,000

Mark Samworth £50,000

James Lyle £50,000

Sir Donald Gosling £50,000

John Spurling £50,000

The Funding Corporation Limited £50,000

IPGL Limited £50,000

Edwin Healey £50,000

David Mayhew £30,000

Christopher Rokos £30,000

Lord (Stanley) Fink £28,000

Andrew Sells £25,000

Lord (Charles G) Leach £25,000

Lord (Simon) Wolfson £25,000

Killik & Co LLP £25,000

JC Bamford Excavators Ltd £25,000

Ivor Braka £25,000

Lord (David) Wolfson £25,000

Jeremy Hosking £25,000

John Nash £25,000

Arbuthnot Banking Group plc £20,000

Nicholas Jenkins £20,000

Hugh Sloane £15,000

David Ord £10,000

Andrew Brannon £10,000

William Cook Holdings Ltd £10,000

Peter Hargreaves £10,000

Rhoderick Swire £10,000

Charles Caminada £10,000

Naguib Kheraj £10,000

GMB Union £10,000

Richard Hoare £10,000

Robin Fleming £10,000

Electoral Commission £114,000

Adrian Beecroft £50,000

Graham Edwards £50,000.00

Alex Knaster £50,000

Jonathan Wood £50,000

Lord (Stanley) Fink £25,000

The Shore Capital Group £25,000

Odey Asset Management Group Limited £20,000

Randox Laboratories Limited £20,000

Terence Cole £10,000

Nick Finegold £10,000

George Robinson £10,000

Britt Shaw £10,000

Charles Wigoder £10,000

Small donations £248,130

Total £2,595,130

Yes to Fairer Votes

Joseph Rowntree Reform Trust £1,021,000

Electoral Reform Society £1,146,096

Electoral Commission £114,000

Paul Marshall £75,000

Brian and Margaret Roper £85,000

Make Votes Count £20,000

Crispin Allard £20,000

C A Church Ltd £15,000

Brompton Capital £100,000

C&C Alpha Group £50,000

Anthony Jacobs £50,000

Alan Parker £30,000

Cru Publishing £25,000

Unlock Democracy £19,338

Andrew Wainwright Reform Trust Litd £15,000

Nat Puri £15,000

Roland Rudd £10,000

Ramesh Dewan £10,000

Neil Sherlock £8,000

Small donations £278,069

Donations in kind £330,119

Total £3,436,622