This Week In Startups - by Ollie Forsyth

Temporal Technologies, the durable execution platform for fault-tolerant distributed workflows, led the week’s biggest funding headlines after raising $550 million in a Series E round that values the company at $12.6 billion. The round was co‑led by Lightspeed Venture Partners, Goldman Sachs Alternatives, Wellington Management and Tiger Global. Other notable rounds included Crusoe’s $3.9 billion Series F at a $30.9 billion valuation and Barq’s $329.5 million Series A at a $1.85 billion valuation for the Riyadh‑based fintech app.

“It’s an ill‑advised moment to go public,” said Sam Altman, speaking broadly about the timing for IPOs this year — a remark that accompanied a broader raft of industry commentary around AI safety and market timing. Altman also described that “even a 10% risk of AI‑driven human extinction” would be unacceptable, underscoring heightened executive concern about the trajectory of frontier models.

Funding roundup and deal details

The week saw a wave of mega‑rounds across infrastructure, security and fintech:

• Crusoe raised $3.9 billion in a Series F at a $30.9 billion valuation, in a round co‑led by Valor Equity Partners, Atreides Management and Mubadala Capital.
• Temporal Technologies’ $550 million Series E was co‑led by Lightspeed Venture Partners, Goldman Sachs Alternatives, Wellington Management and Tiger Global, valuing the firm at $12.6 billion.
• Barq, a Riyadh‑based payments and money‑transfer app, raised $329.5 million in Series A financing at a $1.85 billion valuation, backed by Noon Investments, Sohar International and M20 Capital Group.
• Upwind Security closed a $300 million Series C at a $3.8 billion valuation, co‑led by TCV and Bessemer Venture Partners.
• Exein, the Rome‑based runtime security player for embedded devices, raised $270 million at a $1.7 billion valuation led by Headline.
• Other rounds included Ridgeline ($250 million Series E at $1.43 billion), EnduroSat ($205 million), Factory ($200 million at a $5.2 billion valuation) and Angle Health ($200 million Series C at a $2.7 billion valuation).

AI debate, policy and industry events

The conversation about pace and safety in AI intensified this week after Dario Amodei published a short manifesto titled “We Must Pace the Frontier,” urging labs to slow frontier‑model development and adopt independent evaluation, inter‑lab coordination and international cooperation. The piece was rapidly endorsed by senior industry figures, including Sam Altman and Elon Musk.

Beyond fundraising and AI policy, the week included developments in infrastructure and acquisitions: The Boring Company raised $3 billion at a $23 billion valuation with UAE participation to fund tunneling projects, while OpenAI acquired GLASS Imaging for more than $300 million. Venture activity also produced several new funds, with Bain Capital Ventures raising $1.6 billion and Portage Ventures closing $600 million for its fourth fund.

Outlook

With major rounds fueling infrastructure, security and AI‑native startups, investors are clearly placing large bets on platforms that promise to power and safeguard next‑generation systems. At the same time, public calls for pacing and external oversight — and senior leaders warning against premature IPOs — suggest the industry is entering a period of intensified scrutiny and strategic recalibration. Events such as the New Media Summit on October 7, featuring Dylan Abruscato in conversation with Ollie Forsyth and a panel including Joanna Stern and Sona Iliffe‑Moon, will be among the forums where founders, investors and journalists parse what comes next.