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Startups & Venture·October 26, 2026·1 min read

Few VC firms are mentioned in Anthropic's S-1, except Spark, which invested ~$800M across six rounds and whose GP Yasmin Razavi is the sole VC on its board

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One VC firm putting ~$800M across six rounds and taking the only board seat in Anthropic’s S-1 shows how concentrated conviction — not broad syndicates — is underwriting frontier labs. For founders in capital-intensive AI, expect fewer but deeper investors who will demand real governance influence.