15Five

15Five is a leading continuous performance management platform engineered for the 2026 remote-first and hybrid corporate landscape. Its technical architecture focuses on 'Performance Science,' a methodology that bridges the gap between employee engagement surveys and tangible business outcomes. By 2026, 15Five has matured its Spark AI layer, which utilizes Large Language Models (LLMs) to synthesize thousands of weekly check-ins into actionable executive insights. The platform operates on a robust multi-tenant cloud architecture, offering seamless HRIS integrations with platforms like Workday, BambooHR, and Rippling via a RESTful API framework. Its primary value proposition lies in its ability to facilitate structured 1-on-1s, 360-degree performance reviews, and OKR management within a single, unified interface. The platform's predictive analytics engine can identify high-risk attrition signals by analyzing sentiment shifts in check-in responses over time. 15Five's 2026 market position is solidified as a mission-critical tool for organizations looking to move beyond static annual reviews toward a data-driven, daily-feedback culture that enhances both employee retention and operational efficiency.