60+ startups served · 12 exits · $7B+ in client valuations

Fractional CMO for Seed-Stage Startups

You've raised seed capital and now have 18–24 months to prove you can build a repeatable, scalable marketing motion. This is the make-or-break stage for most startups.

You've closed your seed round and need to find repeatable channels before Series A. Time and runway are your scarcest resources.

At the Seed stage, your marketing priority should be: Channel experimentation, ICP refinement, and building the demand gen engine that proves product-market fit. Seed stage is about channel experimentation with discipline: test 3–4 channels, measure rigorously, double down on what converts, and kill what doesn't. We build the testing framework and run the experiments.

⚠️ The Seed Marketing Trap

Seed-stage companies waste the most money on premature channel scaling. They find something that works at small scale and immediately pour budget in — before the unit economics are validated. We help you prove before you pour.

How Cactus Approaches Fractional CMO at Seed

Senior marketing leadership embedded in your startup — strategy, execution, and team-building at a fraction of a full-time CMO cost.

We don't apply a generic playbook. Every Cactus engagement is calibrated to your stage, runway, team size, and growth objectives. For Seed-Stage Startups, that means maximizing the leverage of every marketing dollar while building the foundations that compound as you grow.

What's Included in Your Engagement

Marketing strategy and roadmap in 2 weeks
Team hiring and management
Board-level reporting and KPIs
Channel strategy and budget allocation
Brand positioning and messaging

Why founders choose Cactus at Seed

→ We've worked with 60+ startups at every stage — so we know what traps to avoid and which bets pay off at Seed

→ We're embedded, not external — working inside your team with direct access to your CEO, sales team, and data

→ We use AI-native tools to deliver 10x the output of traditional agencies at the same cost

→ We measure success in pipeline and revenue, not traffic and impressions

Explore Fractional CMO by stage

Let's build your Seed marketing engine

Book a free 30-minute call. We'll review your stage, growth targets, and runway — then show you exactly what Fractional CMO looks like for a company at Seed.

No pitch deck. Just honest advice from a team that's built this at every stage.

Book a free strategy call →