Third Sector Intelligence Employee Directory

Software DevelopmentWashington, United States11-50 Employees

Third Sector Intelligence (3Si) is a Seattle, Washington-based software company that specializes in early childhood data analytics to support better outcomes for children and families. Its flagship product, the Child Universal Success Platform (CUSP), consolidates data from multiple sources to enable analysis and data-driven decision-making across agencies. The platform is designed to measure program effectiveness and monitor progress toward school readiness and developmental milestones, helping identify service gaps and streamline delivery.

The company serves children, families, child care providers, and state and local government entities, aligning data needs across stakeholders to foster collaboration. With decades of experience in early childhood learning and deployments across more than a dozen states, 3Si positions itself as a specialized software developer in the early childhood data space.

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