
The Four Mechanisms of Compounding Lock-In
The most defensible SaaS companies build moats that deepen automatically over time. Here are the four primary mechanisms:
1. Historical Depth
Five years of data is worth more than one year. The ability to analyze trends, compare periods, and reference history creates value that cannot be replicated by switching.
Key insight: A new system starts with zero history. Every year with the incumbent widens the gap.
2. Machine Learning Improvement
Products that use customer data to train models get better over time:
- Recommendation engines become more relevant
- Anomaly detection becomes more accurate
- Predictive analytics becomes more reliable
- Personalization becomes more precise
Key insight: Switching resets the learning curve. Competitors start from baseline.
3. Network Effects Within an Account
More users generating more data creates more value for all users:
- Knowledge bases that grow richer
- Collaboration patterns that develop
- Institutional memory that accumulates
- Shared workflows that become standard
Key insight: The product becomes more valuable as more of the organization uses it.
4. Integration Proliferation
Customers tend to add integrations over time, not remove them:
- Each year, more systems are connected
- More workflows depend on the product
- More switching cost accumulates
- The product becomes more central to operations
Key insight: Every new integration is another thread binding the customer to the product.
The Result
When these mechanisms compound, switching cost increases automatically with tenure. The moat deepens without additional sales or marketing investment.
This is part of a comprehensive analysis. Read the full analysis on The Business Engineer.









