Based on G2 reviewer demographics and sentiment, Kastle's pricing is best suited for mid-market organizations of 51 to 1,000 employees, particularly in commercial real estate, property management, healthcare, financial services, and non-profit management. These segments dominate G2 reviews of Kastle and consistently report strong ROI from features like badge access management, mobile credentials, scheduled door locking, and 24/7 monitoring. Small businesses also appear frequently among satisfied G2 reviewers, especially those managing multi-tenant office suites. Enterprise buyers use Kastle across large portfolios but occasionally flag multi-site management complexity and cost repetitiveness. Kastle's custom-quote model makes it less accessible for cost-sensitive or early-stage organizations with minimal security infrastructure needs.