Stack Explorer
The HR stack,explained.
11 categories and 69 representative vendors. What each system does, when organizations typically need it, what to ask when evaluating, and where AI is changing the category.
Vendors are listed as examples to help you navigate - not rankings, endorsements or paid placements.
Foundation
Records, pay and benefits - the systems everything else depends on.
Talent
Finding, engaging and hiring people.
Experience
How people perform, grow and are heard.
Performance Management
Goals, reviews, feedback and calibration.
WorkdayBambooHRHiBobPersonioSAP SuccessFactors+6
Employee Engagement
Listens to employees and turns signals into action.
WorkdayHiBobLatticeCulture Amp15Five+4
Learning & Development
Builds skills, delivers training, tracks compliance.
WorkdaySAP SuccessFactorsCulture AmpLeapsomeDocebo+5
Intelligence
Planning, analytics, AI and automation across the stack.
Workforce Planning
Headcount plans, org design and scenarios.
WorkdayEightfold AIBeameryChartHopOrgvue+3
People Analytics
Turns people data into decisions.
WorkdayAshbyChartHopVisierOne Model+1
AI Assistants & Automation
Assistants, agents and workflow automation for HR.
ParadoxEightfold AISanaServiceNow HR Service DeliveryMoveworks+8