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Callosum

56 Leman Street London, E1 8EU, GB
https://www.callosum.com/
Enterprise AI
Callosum is an AI infrastructure company building a global platform to unify heterogeneous compute for AI workloads. The company orchestrates AI workloads across diverse silicon and model architectures to optimize cost, energy consumption, and performance, enabling tailored inference and cross-architecture deployment.

Leadership & Board

Key Executives
Co-FounderDanyal Akarca
Co-FounderJascha Achterberg
Current Number of Employees46
Current LinkedIn Followers10,577

Latest Estimated Valuation

Estimated Valuation―
Estimated Valuation―
Total Amount Raised$100M
Total Amount Raised$100M
Total Funding Rounds1
Total Funding Rounds1
Latest Funding Amount$100M
Latest Funding Amount$100M
Latest Funding RoundSeed Round
Latest Funding RoundSeed Round
Post-Money Valuation―
Post-Money Valuation―

Funding Round

Funding Date
Funding Round
Amount Raised
Post-Money Valuation
Aug 24, 2026
Seed Round
$100.00M
―

Investors

Investor Name
Funding Round
Atomico
Seed Round
Plural
Seed Round
DCVC
Seed Round
UK Sovereign AI Fund
Seed Round

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