#startups Tech News.
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The latest startups news, distilled by AI into sharp ~100-word summaries. ByteBrief tracks startups across dozens of tech sources and brings you only what matters, updated hourly. Tap any story for the full brief, or open the original source.
San Francisco startup Tolan raised $30 million from Union Square Ventures, Khosla Ventures, and Homebrew. The company, which rebranded from Portola, states 70% of its 250,000 monthly users are women. It aims to serve non-tech-savvy people with an AI companion named Harper or Tolan.
Endurance Energy recently tested an underwater geothermal power plant off Oregon, drilling a 52-foot well into 500-degree heat. The experiment produced 8.7 seconds of net power before a cable failure. The Seattle startup, founded by SpaceX engineer Andrew Redd, raised $63 million and aims to deploy commercial systems by next year in Tonga.
San Francisco startup Town raised $108 million in a Series B round on Monday, valuing the AI assistant company at $1 billion. Forerunner Ventures and Menlo Ventures co-led the investment, while existing investors a16z and First Round Capital participated.
Santa Clara-based Tenstorrent raised $1.5 billion in Series E funding on October 19, 2026, valuing the company at $6.2 billion. CEO Jim Keller led the round with Trace Capital and Innovation X, ending prior talks for a $8 billion to $10 billion Qualcomm deal.
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