Abstract: The technology disclosed relates to creation and operation of a marketplace among trusted small and medium sized banks for participation in commercial loans too large for an individual participating bank to undertake on its own. This technology can be applied to formation of other marketplaces in which trust matters and controlled dissemination of opportunity information, as in layers or rounds, proceeds manually. Aspects of the technology disclosed can be used by initiators and participants to syndicate loans once a marketplace is established, whether the market is established applying the technology disclosed or otherwise. This technology also can be applied to syndicate other opportunities or to resell participations in syndicated loans that have closed and been funded.