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Calculus Capital

Calculus Capital

Londoncalculuscapital.com

Overview

Calculus Capital is a UK-based private equity and venture capital firm that specializes in Enterprise Investment Scheme (EIS) and Venture Capital Trust (VCT) funds, investing in innovative and high-growth UK companies.

Year Founded

1999

Portfolio Companies

24

Investments

Calculus Capital investments
CompanyDateStageLead
CloudNCSep 2026Series B ExtensionCo-investor
Resurrect bioMay 2026Series ACo-investor
Resurrect bioFeb 2026Series ACo-investor
GratefulOct 2025SeedLead
TrogenixOct 2025Series ACo-investor
View all investments

Key People

Susan McDonald

Chairman and Co-Founder

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

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FAQ

Firmographic Details

HeadquartersLondon
Year Founded1999

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