Doubts have been raised by Kinnect's key insurance and broking partners over the interconnectivity platform's viability and the amount of money spent on consultants.

It is understood Amlin has privately told the Kinnect board that it may not be committed long-term to the project due to the overburdening costs. Officially the cost of Kinnect is £50m, though estimates put the real cost at £70m.

According to sources, Willis, one of the original key partners, has expressed concerns over its viability and is discussing the possibility of independently launching a direct platform, similar to Kinnect.

A Willis spokesman denied the discussions: "We admit that the cost and the time spent on the project is more than first thought, but we had a meeting with Kinnect this week and are now very positive. The new slip production is much improved and we are committed."

It is understood the Kinnect board will approach Lloyd's senior management, in particular chief executive Nick Prettejohn who is setting the project milestones, late next month for more money.

Last week at the Xchanging Conference 2004, Kinnect chairman Iain Saville faced a barrage of questions from disgruntled Lloyd's and London market professionals.

Only a few weeks ago an anonymous senior Lloyd's executive launched a scathing attack on Kinnect in The Economist.

A Kinnect spokesman said: "We cannot comment on what our partners intentions are in the long-term."