Ordinal is a social media management platform that lets teams draft, plan, schedule, and analyze content across LinkedIn, Instagram, and other major networks from a single dashboard. Founded as Assembly and renamed in November 2025, it serves B2B marketing teams, content agencies, founders and executives, and employee advocacy programs, layering approval workflows, coordinated team engagement, and performance analytics on top of scheduling.
The company was co-founded by Jeffrey Zhao and Francisco Delgado and operates from San Francisco and Austin. It began as a content-calendar tool and grew into a publishing and analytics surface aimed specifically at B2B social, where scheduling alone rarely covers the review cycles and multi-author workflows marketing teams run. Early customers included 📝Clay, Pylon, beehiiv, and Mercury, along with agencies such as Verbatim. Its team-engagement features — notifications that prompt colleagues to like, comment, or repost a published post — target the employee-advocacy pattern that drives organic reach on professional networks, and an MCP and API surface exposes post drafting and analytics to AI agents. Pricing is subscription-based with a free trial.