Financial services occupy a contested corner of the internet, and the Keystone28 index reflects that complexity: 36 catalogued entries cover retail and institutional brokerages, cryptocurrency trading platforms, mortgage lenders, spread-betting operators, and proprietary-trading academies. As with all sections, entries are listed from submissions without verification of regulatory status — visitors must check that any financial service they engage with is authorised in their jurisdiction. The section is useful as an initial discovery tool, not as a compliance guide. Coverage spans multiple currencies and regulatory regimes, reflecting the global and often cross-border nature of modern capital-markets activity.