Besides mercantile, shipping, legal, insurance and financial services, the capital’s maritime connections extended to large-scale manufacturing like shipbuilding, ship repairing, marine engineering, sail-making and sugar baking. Shipping investors, almost exclusively involved in some aspect of sea trade, varied from those holding a few shares to the relative few reliant on ship owning for their income. The wealthiest shipowners and merchants, as well as the Royal Navy, were among the customers of London’s shipyards, clustered along the waterfront. Subject to severed cyclical swings, shipbuilding was a highly skilled, unionised occupation. Many of those employed in port industries lived in London’s then quite socially mixed waterfront parishes of East London. Seamen ashore in colonial and foreign trades also gathered here in response to a sailor economy serving their need for credit, lodging and entertainment.