This article looks at the prospects and the reality of British commercial activity in Siberia in the early twentieth century, before the outbreak of World War I, and is based on contemporary comments by travelers, businessmen, and commercial agents. Contemporaries agreed that the dynamic Siberian economy opened up opportunities for British exports and trade. British firms, however, lagged behind commercial rivals, in particular in Germany, and the United States. The article explores the reasons for this and also looks at the subjects of the British Empire who went to Siberia and the conditions under which they worked. The article demonstrates the vibrancy of Siberian economic development in this period and the active participation of Western powers in this process.