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Investors / United Kingdom / Calculus Capital

Calculus Capital

Venture capital · London, United Kingdom · Europe

calculuscapital.comTakes pitches from founders

Calculus Capital is a UK fund manager that runs EIS funds, a VCT and an Inheritance Tax Solution, investing in EIS and VCT qualifying companies. It created the first UK approved EIS fund in 1999 and has launched a generalist EIS fund every year since, along with multiple VCT share issues.

Invests inHealthcare & BiotechIndustrial & ManufacturingFood & Agriculture

In its own wordstechnologyhealthcarecreative industriesinsurtechlife sciencesmedia

Your fit with Calculus Capital

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7portfolio companies
8funding rounds on record3 led
4rounds, last 12 months
$5M to $20Mtypical round it comes in at
Seedmost frequent entry

Calculus Capital lists 7 checked portfolio companies on its own site and is named in 8 funding rounds, 3 of them as lead. Its most frequent entry is Seed, 43% of the companies with a known first round. Its largest themes are Healthcare & Biotech (27%), Industrial & Manufacturing (18%) and Food & Agriculture (18%). 86% of its companies are based in United Kingdom. It invests most often alongside 4BIO Capital, AIN Ventures and AgFunder.

Counts come from funding rounds that name Calculus Capital, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.

Entry stage

share of companies by the stage of its first round

Calculus Capital does not state its stages on its site, so only what it does is shown.

Show as a table
Share of companies by the stage of the firm's first round
Value
Pre-seed0%
Seed43%
Series A43%
Series B14%
Growth0%

Activity by year

rounds it joined, last 10 years
Show as a table
Funding rounds per year
TotalRounds it led
'1700
'1800
'1900
'2000
'2100
'2200
'2300
'2400
'2542
'2641

Investor profile

percentile among all firms
Portfolio size: 7 companiesRecent activity: 4 rounds in 12 monthsEarly stage: 43% of entries at pre-seed or seedEvidence: 0% of companies confirmed by a roundSector focus: 27% in its largest sectorReach: 2 countriesPortfolio size12th pctRecent activity82th pctEarly stage67th pctEvidence52th pctSector focus43th pctReach42th pct
This firmMedian of all firms
Show as a table
Calculus Capital compared with all firms
MeasurePercentile of all firmsValue
Portfolio size12th7 companies
Recent activity82th4 rounds in 12 months
Early stage67th43% of entries at pre-seed or seed
Evidence52th0% of companies confirmed by a round
Sector focus43th27% in its largest sector
Reach42th2 countries

Invests most often with

firms sharing its portfolio companies
Show as a table
Co-investors
Share
4BIO Capital1
AIN Ventures1
AgFunder1
Backed1
Cancer Research Horizons1
Celero Ventures1
Empirical Ventures1
Entrepreneurs First1

All co-investors

Its portfolio companies

where they are based, and what their own sites show

Headquarters

Site status

  • Site answers7100%
  • No longer answers00%
  • Points to another company00%
  • Parked or sold domain00%

A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.

Investment themes

share of its checked companies

This firmAll checked companies

Show as a table
Investment themes
This firmAll checked companies
Healthcare & Biotech27%15%
Industrial & Manufacturing18%7%
Food & Agriculture18%3%
AI & Machine Learning18%18%
Legal & Compliance9%2%
Fintech9%12%

Compare Calculus Capital head to head

portfolio size, rounds, entry stages, themes and the companies both back

Three or more firms at once: portfolio overlap.

Recent portfolio activity

when companies last raised with Calculus Capital
DateCompanyStage
9 Sept 2026CloudNCcloudnc.comSeries B
1 Jun 2026Edifyedifysystems.ioSeed Led
14 May 2026Resurrect Bioresurrect.bioSeries A
17 Feb 2026Resurrect Bioresurrect.bioSeries A
14 Oct 2025Gratefulgrtfl.comSeed Led
6 Oct 2025Trogenixtrogenixbio.comSeries A
28 Aug 2025EnsiliTechensilitech.comSeed
5 Mar 2025Notify Technologynotifytechnology.comSeries A Led

Round details for Calculus Capital

Amounts, full round histories and every co-investor in Calculus Capital's rounds are on Fundup AI. VCinfo covers investors and their portfolios.

See rounds on Fundup AI →

Portfolio

7 companies checked against their own sites
CompanyWhat it doesThemesFirst round with itEvidence
CloudNCcloudnc.com · United KingdomCloudNC integrates AI with computer-aided manufacturing software to generate machining strategies and toolpaths
Industrial & Manufacturing
Sept 2026Series BFunding round
Edifyedifysystems.io · United KingdomEdify is the operating intelligence platform that helps hospitality businesses thrive.
Food & AgricultureLegal & Compliance
Jun 2026SeedFunding round
EnsiliTechensilitech.com · EnglandEnsiliTech develops a technology to prevent degradation of thermally unstable biomolecules
Healthcare & Biotech
Aug 2025SeedFunding round
Gratefulgrtfl.com · United KingdomGrateful provides cashless tipping software for the hospitality industry
FintechFood & Agriculture
Oct 2025SeedFunding round
Notify Technologynotifytechnology.com · United KingdomThe company provides a safety management platform for proactive risk management
Healthcare & BiotechIndustrial & Manufacturing
Mar 2025Series AFunding round
Resurrect Bioresurrect.bio · United KingdomResurrect Bio helps crops defeat disease by designing precise genetic edits that restore and strengthen the plant's own resistance
AI & Machine LearningAI & Machine Learning
Feb 2026Series A · 2 roundsFunding round
Trogenixtrogenixbio.com · United KingdomTrogenix develops precision cancer treatments using gene therapy
Healthcare & Biotech
Oct 2025Series AFunding round

About this data

site last read 5 Nov 2026
The homepage of Calculus Capital, as last read
calculuscapital.com as VCinfo last read it
Site
calculuscapital.com
Last read
5 Nov 2026
Watching since
6 Nov 2026
Rounds since
5 Mar 2025
Companies checked
7

Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.

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