In Denver, paid ads agency pricing typically follows either a percentage-of-ad-spend model (usually 15-20% for smaller budgets, 10-15% for larger ones) or a flat monthly retainer ranging from $2,500-$8,000 depending on campaign complexity. Denver's competitive digital marketing landscape, particularly in tech and healthcare sectors, means agencies with industry-specific expertise often command premium rates. Local agencies serving Denver's aerospace and energy sectors may have higher starting retainers due to the specialized knowledge required. Most Denver agencies require a 3-month minimum commitment to properly establish, optimize and demonstrate ROI on your campaigns. Be wary of significantly cheaper options, as they may lack the expertise to navigate Denver's unique B2B-heavy market effectively.