Gordon Brown's leadership campaign has received more than £110,000 in donations, the Electoral Commission has revealed.
The Conservative Party accused Gordon Brown of "cronyism" for accepting money what it called a "small clique" of donors who have received government posts.
The commission's register shows the chancellor and prime minister-in-waiting received £25,000 from Lord Bhattacharyya, who was made a Labour peer in 2004.
The Tories pointed out that Brown visited Lord Bhattacharyya's industrial support programme, Warwick University Manufacturing Group, last week as part of his campaign.
Brown has also received donations of £9,700 and £5,000 from Paul Myners and Lord Leitch respectively.
Myners was appointed to conduct two Treasury reviews, on international investment in 2000 and on the governance of life mutuals.
He is also chairman of the Low Pay Commission, and was re-appointed chairman of the Tate by the prime minister in April this year.
Brown appointed Lord Leitch, who became a Labour peer in 2004, to conduct a review of skills in 2004 and to head the New Deal Task Force.
Tory frontbencher Chris Grayling said: "Gordon Brown claims he wants a new type of politics.
"But the funding of his campaign shows that he is incapable of breaking with the culture of cronyism that has dogged the government for years.
"The reality is that many of these donors have been appointed to government posts by Gordon Brown and are now paying the chancellor back.
"It's quite clear that Gordon Brown intends to carry on leading a 'you scratch my back and I'll scratch yours' government."
Donations to the Brown campaign total £101,700, with another £11,070 in non-cash donations - covering "design services" from advertising agency Abbott Mead Vickers BBDO and a car and driver provided by the Co-operative Party.
A Brown campaign source welcomed the "widespread support for Gordon's campaign from donors who have distinguished themselves in various fields of business".
"It's sadly typical of today's Tories to impugn the integrity of such individuals simply because they happen not to be Tories," said the source.
