How Much Should a Startup Spend on Marketing?
How much a seed-stage B2B startup should spend on marketing: what to budget for, realistic monthly ranges, and how to know when to spend more.
November 3, 2026
Founders ask us this on almost every first call: what does a fractional CMO cost, and is it worth it compared to hiring someone or bringing in an agency?
Here's the honest answer, with real numbers, including ours.
Most fractional CMOs charge a monthly retainer. For startups, that's often in the range of $5,000 to $15,000 a month, depending on hours, seniority, and scope.
The key question is what's included. Many fractional CMOs set strategy and manage others. They don't execute. So you may still need to pay for writers, designers, ad managers, or an agency on top.
We built Pier as a middle path: senior strategy plus the team that executes it, embedded with you.
Ad spend is separate, usually $1,500 to $3,000 per channel.
We work in startup mode. We run experiments, pivot quickly, and make limited budgets go further. For ReadyFestive, that meant a $16 CAC and an 8:1 LTV to CAC ratio. For Essential CEU, it meant 50% year-over-year growth for three straight years.
Book a growth audit. We'll look at where you are and tell you honestly whether you need us, an agency, or a hire.