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Software as a Service has become one of the defining business models in enterprise technology. What once looked like a fast-growing software segment is now deeply embedded across collaboration, CRM, finance, cybersecurity, HR, analytics, and industry-specific software markets.
Quick Answer (2026): Gartner forecast worldwide end-user spending on public cloud services to reach $723.4 billion in 2025, up from $595.7 billion in 2024. Gartner also forecast $5.43 trillion in total worldwide IT spending in 2025, showing the scale of the broader software and cloud market.
| Metric | Figure | Year |
|---|---|---|
| Worldwide public cloud end-user spending | $723.4 billion | 2025 |
| Worldwide public cloud end-user spending | $595.7 billion | 2024 |
| Worldwide IT spending | $5.43 trillion | 2025 |
| 2026 worldwide IT spending forecast | $6.08 trillion | 2026 |
There is no single universally accepted “SaaS market size” number because analysts draw the category differently. The cleanest high-authority proxy is cloud and enterprise software spending. Gartner forecast worldwide public cloud end-user spending would reach $723.4 billion in 2025, up sharply from $595.7 billion in 2024.
That makes the old 2019 “$100 billion revenue run rate” framing far too dated for a 2026 SaaS overview page.
SaaS adoption keeps expanding because organizations want easier deployment, lower maintenance burdens, subscription economics, and faster product updates. Gartner’s broader forecast of $5.43 trillion in worldwide IT spending for 2025 also helps show the scale of software and cloud demand across the enterprise landscape.
Most SaaS companies now sit inside a much larger cloud stack. That is why current SaaS overviews should connect application-level growth to broader public-cloud spending and enterprise IT budgets rather than relying on old single-year startup-era milestones.
Gartner forecast worldwide public cloud end-user spending of $723.4 billion in 2025.
Gartner put 2024 worldwide public cloud end-user spending at $595.7 billion.
Gartner forecast $5.43 trillion in worldwide IT spending for 2025.
Because public cloud and enterprise software spending are among the clearest current indicators of SaaS scale and adoption.
Updated Zoom stats through FY 2025 (ended Jan 31, 2025): revenue ($4.665B), net income ($1.010B), gross margin (75.8%), enterprise customers (192.6K), $100K+ customers (4,088), churn (2.9%), and employees (7,412).
