What criteria should a boutique design studio use to prioritize growth options?

[David.H]

My boutique graphic design studio has reached a stable plateau with a solid roster of recurring clients, but I'm feeling the pressure to develop a deliberate growth strategy to move beyond this comfortable but limiting phase. I'm torn between scaling our service offerings, like adding web development or branding strategy, and focusing on geographic expansion or targeting a new industry vertical, but I'm worried about diluting our quality or overextending our small team. For other service-based business owners who have successfully scaled, how did you evaluate and prioritize different growth avenues? What key metrics did you track to ensure your growth was sustainable and profitable, not just an increase in revenue, and how did you fund the initial expansion—through reinvested profits, a line of credit, or seeking external investment?