David Siegel

Tracked participation in 2 Atlas companies, with 0 explicitly attributed leads.

2portfolio companies

3round participations

0lead positions

Dec 2026latest activity

Capital activity

Portfolio

CompanyLatest valuationFirst → latestRoundsRoleAttributed partner

SSandboxAQScienceSandboxAQ is an independent B2B company applying “Large Quantitative Models” (LQMs)—physics, chemistry, and…$5.3Bvaluation$2.1BraisedRecent roundsOther / 2024 round (company-described $300M+ funding) · Dec 2026$300M · Ava Investments, Breyer Capital +12Series F · Jun 2026Government award (CHIPS R&D award; non-dilutive stated by framing in release) · Jun 2026$500M · U.S. Department of Commerce (CHIPS Research and Development Office)SandboxAQ$5.3BDec 2024 → Dec 20262 roundsParticipant—

LALiquid AI—Dec 2023 → Dec 20231 roundParticipant—

DateCompanyRoundRaisedValuationRoleEvidence

Dec 18, 2026SSandboxAQScienceSandboxAQ is an independent B2B company applying “Large Quantitative Models” (LQMs)—physics, chemistry, and…$5.3Bvaluation$2.1BraisedRecent roundsOther / 2024 round (company-described $300M+ funding) · Dec 2026$300M · Ava Investments, Breyer Capital +12Series F · Jun 2026Government award (CHIPS R&D award; non-dilutive stated by framing in release) · Jun 2026$500M · U.S. Department of Commerce (CHIPS Research and Development Office)SandboxAQOther / 2024 round (company-described $300M+ funding)$300M$5.3BParticipant

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Dec 18, 2024SSandboxAQScienceSandboxAQ is an independent B2B company applying “Large Quantitative Models” (LQMs)—physics, chemistry, and…$5.3Bvaluation$2.1BraisedRecent roundsOther / 2024 round (company-described $300M+ funding) · Dec 2026$300M · Ava Investments, Breyer Capital +12Series F · Jun 2026Government award (CHIPS R&D award; non-dilutive stated by framing in release) · Jun 2026$500M · U.S. Department of Commerce (CHIPS Research and Development Office)SandboxAQSeries E (or Series E funding round announcement; amount disclosed)$300M$5.3BParticipant

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Dec 06, 2023LALiquid AISeed$46.6M—Participant

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DateCompanyRoundRaisedValuationRoleEvidence

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Dec 06, 2023LALiquid AISeed$46.6M—Participant

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