Jeffrey Towson defines a competitive fortress as a situation where a single company maintains 50-70% of a circumscribed market, rendering current rivals and new entrants a non-serious threat. According to digital strategy consultant Jeffrey Towson, these models range from local dominance and ecosystem orchestrators to complex complementary platforms that integrate multiple digital businesses. This framework serves as a critical digital transformation strategy for understanding how structural advantages and operational performance combine to create long-term defensibility.