MentionFox lists 23 Cloud infrastructure companies for 2025. Of them, 20 are Y Combinator companies (the newest batch here is Fall 2025, with 4); 3 won an SBIR or STTR award.
Other years
All years (158) 2026 (42) 2024 (19) 2023 (20)
Cloud infrastructure startups in 2025
| Company | What it does | Date | Amount | Round / stage | Record |
|---|---|---|---|---|---|
| Hypori, Inc. | This award is for the small business innovation research (sbir) phase iii follow-on effort for the hypori il5 software as a service… | Award starts Sep 18, 2025 | $4.1M | SBIR Phase III | Federal award record |
| Bolna AI | Voice AI to enable India's next billion | Fall 2025 | Y Combinator batch | Y Combinator listing | |
| Lemma | Production Monitoring for AI agents | Fall 2025 | Y Combinator batch | Y Combinator listing | |
| SF Tensor | Infrastructure for AI labs to focus on research. | Fall 2025 | Y Combinator batch | Y Combinator listing | |
| Unsiloed AI | API for parsing multimodal unstructured data | Fall 2025 | Y Combinator batch | Y Combinator listing | |
| Interactive Aptitude LLC | Building automation systems for efficient twin-computation with interfaces and networked-tools (base-twin). | Award starts Aug 1, 2025 | $1.8M | STTR Phase II | Federal award record |
| Trekfed LLC | Cloudops bespin ecosystem sbir iii idiq ton 39 senior leader network web application | Award starts Aug 1, 2025 | $528,805 | SBIR | Federal award record |
| Kernel | Crazy fast, open source infra for AI agents to use the Internet | Summer 2025 | Y Combinator batch | Y Combinator listing | |
| Lilac | We sell GPUs. | Summer 2025 | Y Combinator batch | Y Combinator listing | |
| Modelence | Production infrastructure on autopilot | Summer 2025 | Y Combinator batch | Y Combinator listing | |
| Monte | Continual Learning for Agents | Summer 2025 | Y Combinator batch | Y Combinator listing | |
| Panoptive | The continuous oversight engine for clinical trials | Summer 2025 | Y Combinator batch | Y Combinator listing | |
| Playgent | Sandboxes for AI agents | Summer 2025 | Y Combinator batch | Y Combinator listing | |
| TraceRoot.AI | Open source self-improving layer for AI agents | Summer 2025 | Y Combinator batch | Y Combinator listing | |
| Aravolta | Software to monitor, control, and optimize data centers. | Spring 2025 | Y Combinator batch | Y Combinator listing | |
| Attune | Faster builds, zero effort. | Spring 2025 | Y Combinator batch | Y Combinator listing | |
| Boost Robotics | Robots for the inspection and maintenance of data centers | Spring 2025 | Y Combinator batch | Y Combinator listing | |
| Naïve | Autonomous Company Infrastructure | Spring 2025 | Y Combinator batch | Y Combinator listing | |
| ParaQuery | Managed GPU-accelerated Spark + SQL at 2x speed and half the cost | Spring 2025 | Y Combinator batch | Y Combinator listing | |
| Exla | Building agents that reads logs and fixes issues on your behalf. | Winter 2025 | Y Combinator batch | Y Combinator listing | |
| Liquid Compute | Pending CFTC regulation to be the first cash and physically settled… | Winter 2025 | Y Combinator batch | Y Combinator listing | |
| Osmosis | Reinforcement Learning (RL) for AI Agents | Winter 2025 | Y Combinator batch | Y Combinator listing | |
| SubImage | The Open-Core Security Graph | Winter 2025 | Y Combinator batch | Y Combinator listing |
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Figures come only from the record linked in each row; a blank means the record gives none. How these lists are built.