ICP Definition & Segmentation

Overview

ICP is the single highest-leverage decision in a $1M-5M ARR business. This skill turns customer research into a precise, tiered targeting framework that tells every downstream function exactly who to pursue, who to deprioritize, and who to reject.

When to Use

• Targeting feels unfocused or overly broad ("we serve everyone")
• CAC is high relative to benchmarks and LTV
• Churn analysis reveals bad-fit customers are being acquired
• ICP exists only as founder intuition, not documented and validated
• Entering a new market or segment
• Conversion rates are low despite sufficient traffic
• Sales team lacks clear qualification criteria
• Preparing to build positioning, GTM strategy, or content engine

Don't use when: You have a validated, data-backed ICP from the last 6 months with no market changes or new segment entry.

Quick Reference

Phase	Duration	Output
Data assembly	Day 1	Customer Scoring Matrix
Pattern extraction	Day 2	ICP Pattern Analysis
ICP framework build	Day 3	Tiered ICP Document + Negative ICP
Buyer persona development	Day 4	Persona Profiles per ICP Tier
Validation & operationalization	Week 2	Validated ICP in CRM + Team Training

Core Deliverables

• Tiered ICP Document -- Tier 1 (perfect fit), Tier 2 (good fit), Tier 3 (acceptable), with firmographic, technographic, and behavioral criteria per tier
• Negative ICP -- Disqualification signals with evidence from bottom-20% customer data
• Buyer Personas -- Role-specific profiles within each ICP tier (champion, economic buyer, technical buyer, end user, blocker)
• Customer Scoring Matrix -- Every customer scored and tiered by health score

Common Mistakes

• Building ICP from assumptions instead of data (skip customer research and your ICP is fiction)
• Making ICP too broad ("10-10,000 employees" is not an ICP)
• Ignoring negative ICP (knowing who to reject is as valuable as knowing who to pursue)
• Confusing personas with ICP (ICP = company fit, persona = people within those companies)
• Setting and forgetting (revisit quarterly with fresh data)
• Optimizing for TAM size over segment dominance

Integration

Feeds into: gathering-competitive-intel, building-positioning-messaging, designing-gtm-strategy, developing-brand-strategy, planning-marketing-budget, running-content-engine, creating-sales-enablement, reducing-cac, accelerating-pipeline

Refresh: Full ICP review every 6 months. Scoring model recalibration quarterly. Pipeline audit vs. ICP monthly. Persona refresh every 6 months.

See workflow.md for detailed phase-by-phase execution, scoring frameworks, ICP document templates, persona frameworks, and integration point diagrams.