After recent conversations with several 0–1 stage startups I’ve been advising, this topic came roaring back onto my radar. Each founder was wrestling with the same question: Who exactly is our Ideal Customer Profile (ICP)? In dissecting their positioning debates, it became clear to them there’s no one-size-fits-all answer—choosing between rabbits and whales fundamentally shapes everything you build.

Understanding the Ecosystem You're About to Enter

Picture this: You're standing at the edge of a vast marketplace, map in one hand, compass in the other. Ahead of you stretches an entire ecosystem of potential customers—some as quick and nimble as rabbits, darting between choices with lightning speed, others as massive and deliberate as whales, moving with the weight of entire organizations behind every decision.

This is the moment every founder faces. Where do you plant your flag?

The choice you make here isn't just about customer size—it's about fundamentally different worlds, each with its own physics, its own language, and its own rules for survival. Let me walk you through this journey, because understanding these worlds isn't just strategy; it's the difference between building a business that thrives and one that merely survives.

The Great Realization: Size Changes Everything

I learned this lesson firsthand. Our team spent over a year focused exclusively on selling our B2B enterprise solution—solid-ish product, expert team, but enterprise buyers wouldn’t take a chance on an unproven startup. Twelve months passed without a single contract. In the quest for product–market fit, what do you measure against when no customer is willing to sign? While still pursuing enterprise deals, we quietly launched a stripped-down, self-service version. Within weeks, over eighty businesses adopted it organically—without a single sales call. That market signal was undeniable: your customer's size doesn't just affect your deal size—it rewrites your entire playbook.

Understanding the Terrain: From Rabbits to Whales

Let's map out this ecosystem properly. Think of it as understanding different species, each with unique behaviors, needs, and survival patterns.

In the industry, this “rabbits to whales” framework—and all the animal sizes in between—is often used to illustrate the various paths to reaching the coveted $100 M ARR milestone by focusing on customers of different sizes.

The Rabbit Territory (SMBs): Speed and Instinct

Rabbits move fast. In the SMB world, the average sales cycle is just three months, and often it's much shorter. I've seen deals close in a single week when the pain is acute enough.

Here's what drives rabbit behavior:

  • Propensity to pay: Moderate but immediate. They’ll spend $5 K–$50 K when they see clear, quick ROI.

  • Need urgency: High and personal. When the Owner/CEO's inbox is overflowing or the team is drowning in manual processes, they act fast.

  • Decision complexity: Beautifully simple. Usually one person (often the founder or CEO) makes the call.

  • Competition: Fierce but straightforward. They compare 2–3 options, read a few reviews, maybe try a free trial.

  • Sales cycle: Lightning fast. First demo to signed contract in weeks, not months.

The rabbit customer experiences your value within the first 10 minutes. Think Slack's first message, Figma's first design, or Notion's first page. If they don't “get it” immediately, they're gone—there are too many other bright, shiny solutions competing for their attention.

The Whale Territory (Enterprise): Depth and Consensus

Whales operate in an entirely different ocean. Everything moves slower, deeper, with more consideration for the ecosystem around them.

Here's the whale world:

  • Propensity to pay: Enormous but calculated. They’ll invest $100 K–$1 M+ when they see strategic transformation.

  • Need urgency: Strategic, not tactical. They’re solving organization-wide challenges, not individual pain points.

  • Decision complexity: Byzantine. An average of 7 people influence each purchase decision, and that number keeps climbing.

  • Competition: Intense and multifaceted. They evaluate not just features but integration capabilities, security compliance, long-term roadmaps.

  • Sales cycle: Marathon-length. Seven months on average, often extending to 12–18 months for complex implementations.

Whales only experience value after organizational transformation. Think Workday's impact on HR processes or Salesforce's effect on sales operations. The ROI is massive, but more likely than not only emerges once the entire company commits to the change.

The Hidden Dynamics: What Most Founders Miss

Competition Behaves Differently in Each Territory

In rabbit land, competition is about features and speed. Customers compare your tool to 2–3 alternatives, often making decisions based on which one they can understand and implement fastest. The competition is visible, direct, and often commodity-like.

In whale territory, competition is about strategic positioning and relationships. You’re not just competing against other vendors—you’re competing against internal initiatives, status quo inertia, and “build vs. buy” debates that can stretch for months.

The Pricing Psychology Shift

Rabbits think in cost per problem solved. They ask, “Will this $99/month save me more than $99/month in time or headaches?” The math is immediate and personal.

Whales think in strategic investment terms. They ask, “Will this $500 K implementation deliver $2 M in efficiency gains over three years?” They have procurement teams, budget approval processes, and ROI calculators that would make your head spin.

This isn’t just different pricing—it’s different willingness to pay psychology. Rabbits want transparent, predictable costs. Whales expect custom pricing based on usage, implementation complexity, and strategic value delivered.

In Part 2, we'll explore how to make this critical choice—planting your flag and committing fully to your chosen territory—and what it means for your startup’s future...