StackOne Inc.

About StackOne Inc.

StackOne provides a unified API that lets software companies integrate with multiple HR, payroll, ATS, LMS and other workforce platforms through a single interface. Instead of building and maintaining separate integrations, developers authenticate once and read or write data across systems like Workday, BambooHR, Greenhouse, SAP SuccessFactors and more using normalized data models. The platform handles token refresh, rate limits, permissions and compliance, so teams can launch integrations faster and keep them current without ongoing maintenance. Headquartered in San Francisco, StackOne serves SaaS vendors that embed workforce connectivity into their own products.