Side-by-side IPO readiness, funding history, and valuation comparison. Data sourced by TechStackIPO.
Scores, valuations, and signals for Calendly, OpenAI, and 370+ companies. 5-min read every Tuesday.
Online scheduling platform used by 25M+ professionals and 100,000+ companies to automate meeting lifecycles and eliminate scheduling friction.
| Industry | Enterprise Software |
| Stage | Series A |
| IPO Status | Pre-IPO |
| Valuation | $3B |
| Total Funding | $350M |
| Headquarters | Atlanta, GA |
OpenAI is valued at $852B — the world's most valuable AI company, backed by $27B in funding. Track IPO readiness score, funding rounds, and timeline.
| Industry | Artificial Intelligence |
| Stage | Pre-IPO |
| IPO Status | Pre-IPO |
| Valuation | $852B |
| Total Funding | $55.4B |
| Headquarters | San Francisco, CA |
Calendly is valued at $3B. OpenAI is valued at $852B. Both valuations are based on the most recent private funding rounds tracked by TechStackIPO.
Calendly has raised $350M. OpenAI has raised $55.4B.
Calendly is currently pre-IPO. OpenAI is currently pre-IPO. Track both on TechStackIPO for S-1 filings and IPO announcements.
Calendly operates in Enterprise Software, while OpenAI operates in Artificial Intelligence.
Calendly is a Enterprise Software company valued at $3B with $350M raised. OpenAI is a Artificial Intelligence company valued at $852B with $55.4B raised. See TechStackIPO's full side-by-side comparison for IPO readiness scores, funding timelines, and investor data.
Accredited investors can access pre-IPO shares in Calendly and OpenAI through secondary market platforms, pre-IPO funds, and broker-dealer platforms that facilitate private company transactions. TechStackIPO's marketplace section tracks available access options for both companies. Pre-IPO investments carry higher risk and limited liquidity.