{
  "id": 8286093,
  "title": "The Week’s 10 Biggest Funding Rounds: Large Rounds For AI Infrastructure, Space Tech And Investment Management Lead",
  "url": "https://urgent.news/2026/09/18/the-weeks-10-biggest-funding-rounds-large-rounds-for-ai",
  "topic": "finance",
  "section": "Finance & Markets",
  "published": "2026-09-18T18:29:32.000Z",
  "source": {
    "name": "Crunchbase News",
    "slug": "crunchbase-news",
    "url": "https://news.crunchbase.com/venture/biggest-funding-rounds-ai-space-fintech-temporal/"
  },
  "original_language": "en",
  "account": "The largest U.S. startup funding rounds in the past week were made up of hundreds of millions of dollars in investments, with notable deals in AI infrastructure, space technology, investment management, networking, coding, and marketing sectors. Temporal Technologies, an AI infrastructure company, raised $550 million in Series E funding, bringing its valuation to $12.55 billion. Impulse Space, a space vehicle developer, secured $308 million in Series D extension funding, totaling $808 million. Ridgeline, an AI investment management platform, raised $250 million in Series E financing, setting a $1.45 billion valuation. Cornelis Networks, a networking technology developer for AI and high-performance computing, received $205 million in new funding. Factory, an AI software development company, announced a $200 million funding round at a $5 billion valuation. Profound, a marketing software startup, raised $180 million in Series D funding. Arcee AI and Nex, tied for fifth place, secured $150 million each in Series B and Series E funding respectively, for open-weight AI models and family-oriented digital games. Mazama Energy, a Seattle-based geothermal energy developer, raised $135 million in Series B funding. Lastly, Sling Therapeutics, a biotech company developing a small-molecule therapy for thyroid eye disease, closed on $123 million in Series C financing.",
  "summary": "After a week of multiple billion-dollar-plus rounds, startup investors have reduced the number of zeroes on their funding checks. This past week, the largest U.S. startup funding rounds were in the hundreds of millions, topped by a $550 million financing for AI infrastructure company Temporal Technologies and a $308 million investment in space vehicle developer Impulse Space.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}