Market Segmentation
The practice of dividing your total addressable market into distinct groups based on shared characteristics — company size, industry, use case, or buying behavior — to deliver more targeted and effective marketing.
Segmentation Makes Marketing Specific and Effective
A message for everyone is a message for no one. Market segmentation lets you craft specific value propositions, content, and campaigns for each group of buyers. A 20-person startup and a 5,000-person enterprise have different problems, different buying processes, and different definitions of value. Treating them the same wastes your message on one or both.
Segmentation Dimensions for SaaS
By company size: SMB, mid-market, enterprise. Each has different budgets, decision processes, and needs. By industry: Healthcare, fintech, e-commerce. Each has unique pain points and regulatory requirements. By use case: Different departments or functions use your product differently. By maturity: Startups vs established companies have different priorities.
Operationalizing Segments
Each segment should have: a defined ICP within that segment, segment-specific messaging and value propositions, tailored content and campaigns, appropriate sales motion (self-serve for SMB, AE-led for enterprise), and segment-specific metrics. If you cannot operationalize a segment, it is a theoretical exercise, not a strategy.
Avoiding Over-Segmentation
More segments means more content, more campaigns, more complexity, and more cost. Start broad and narrow based on data. If two segments behave similarly, merge them. If one segment requires a fundamentally different GTM motion, separate it. Let buyer behavior differences drive segmentation decisions.
Frequently Asked Questions
How should B2B SaaS companies segment their market?
Common B2B segmentation dimensions: company size (SMB, mid-market, enterprise), industry vertical, use case or job-to-be-done, geographic region, technology stack, and growth stage. The best segmentation is based on buying behavior differences — segments that buy differently should be marketed to differently.
How many segments should you have?
Start with 2-3 primary segments. Each segment needs its own messaging, content, and potentially its own GTM motion. If you cannot afford to serve a segment with dedicated resources, you have too many segments. You can always refine and add segments as you scale.
