The 10 Largest Rounds of the Week: Temporal Leads with US$550M

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  "signal_type": "news",
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  "detected_at": "2026-09-18T19:36:32+00:00",
  "company": {
    "name": "Temporal",
    "domain": "temporal.io"
  },
  "data": {
    "url": "https://ecosistemastartup.com/las-10-mayores-rondas-de-la-semana-temporal-lidera-con-us550m/",
    "title": "The 10 Largest Rounds of the Week: Temporal Leads with US$550M - The Startup Ecosystem",
    "excerpt": "After several weeks with multiple rounds above US$1,000M, investors lowered the number of zeros on their checks. Between September 12 and 18, 2026, the ten largest private equity deals in US startups ranged from US$123M to US$550M, according to Crunchbase's weekly ranking. The sectoral composition, however, did not change: six of the ten rounds are linked to AI (infrastructure, software dev, marketing, open models, gaming, and investment management), while space tech and geothermal energy are consolidating as new favorite verticals for institutional capital. Below are the deals that defined the week - with verified data from official announcements and subsequent coverage.\nTemporal Technologies, an open-source platform for building AI agents and long-running enterprise systems based in Bellevue (Washington), closed a US$550M Series E on September 14 at a valuation of US$12,550M. The round was co-led by Lightspeed Venture Partners, Wellington Management, Growth Equity at Goldman Sachs Alternatives, and Tiger Global, with participation from T. Rowe Price and SV Angel. Existing investors Andreessen Horowitz, Sequoia Capital, Index Ventures, GIC, Sapphire Ventures, and Amplify reinvested. 🚀 Before seeking capital, validate the business A community of entrepreneurs building with AI as leverage - without startup hype, focused on what works.\nThe operational data published by the...",
    "summary": "Temporal Technologies was valued at US$12.55 billion following its US$550M Series E financing round.",
    "location": "Bellevue, Washington",
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    "image_url": "https://ecosistemastartup.com/wp-content/uploads/2026/09/rondas-inversion-startups-semanales-1200x675.jpg",
    "confidence": 1,
    "published_at": "2026-09-18T19:36:32Z",
    "location_data": [
      {
        "city": "Bellevue",
        "state": "Washington",
        "region": "Northern America",
        "country": "United States",
        "continent": "Americas",
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      }
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    "effective_date": "2026-09-14",
    "article_sentence": "Temporal Technologies, an open-source platform for building AI agents and long-running enterprise systems based in Bellevue (Washington), closed a US$550M Series E on September 14 at a valuation of US$12,550M.",
    "amount_normalized": 12550000000
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