Companies
Growth-stage companies with proven model, expanding aggressively. Currently tracking 55 companies. Last updated May 2026.
Growth-stage companies with proven model, expanding aggressively. Currently tracking 55 companies at this stage. Last updated May 2026 on TechStackIPO.
Data sourced from SEC EDGAR filings, company press releases, and verified public announcements. Browse all companies →
Series B companies have demonstrated scalable business models and typically raised $20M-$100M. These companies are in aggressive growth mode — expanding into new markets, building enterprise sales teams, and investing in product development. Series B represents a critical inflection point: companies that execute well at this stage often become acquisition targets or begin attracting pre-IPO investor interest. The average time from Series B to IPO is 4-6 years, though companies in high-demand sectors can compress this timeline. TechStackIPO monitors key metrics including annual recurring revenue (ARR), net revenue retention, and market share gains against established competitors.
TechStackIPO currently tracks 55 companies at the Series B stage. This includes companies across technology, fintech, AI, cybersecurity, healthcare, and other high-growth sectors.
Growth-stage companies with proven model, expanding aggressively. Companies at this stage typically share characteristics in revenue scale, team size, and institutional backing.
Accredited investors can access pre-IPO shares in select Series B companies through secondary market platforms including Forge Global, EquityZen, and Hiive. Availability depends on shareholder willingness to sell and minimum investment thresholds typically range from $10,000 to $50,000.