This study addresses a critical theoretical gap in understanding how digital technology integration drives the growth of Small and Medium-sized Enterprises (SMEs). While existing literature often focuses on the adoption of digital technologies, it overlooks the distinction between technology adoption (extensive margin) and the depth of technology integration across business functions (intensive margin). Drawing on the resource-based and knowledge-based views of the firm, we explore how these dimensions of technology use influence SME growth and scalability. Using data on 14,313 firms across 30 countries from the Global State of Small Business Survey, our analysis reveals that SMEs are significantly less likely than larger firms to integrate digital technologies intensively, which is essential for realizing growth benefits. Furthermore, we demonstrate the primacy of organizational factors—such as firm size, age, and internal capabilities—over regional and country-specific factors in explaining variation in digital technology integration and firm performance. These findings challenge the conventional focus on technology adoption by emphasizing the role of organizational design and internal resource allocation in achieving competitive advantage through digital transformation. Our study contributes to the ongoing discourse on digital technology use, offering new insights for theory and practice in fostering SME growth and scalability.