A digital marketing agency is a company that helps businesses of all sizes develop, implement, and manage digital marketing campaigns. The various stages of a digital marketing agency include market research, strategy development, campaign setup, execution, optimization, and reporting. Market research involves gathering data on target audiences, competitors, and trends in the digital marketing space. Strategy development involves creating a plan for how to best reach the target audience. Campaign setup includes creating campaigns, setting up ad accounts, and establishing tracking systems. Execution involves launching the campaigns and monitoring their performance. Optimization involves making adjustments to campaigns to maximize performance. Lastly, reporting involves analyzing the data from campaigns and providing insights for future campaigns.