What Calculus Capital does

Calculus Capital Limited is a London-headquartered, FCA-authorised (FRN 190854) investment manager founded in 1999 by John Glencross and Susan McDonald. The firm creates and manages UK tax-efficient private equity funds aimed at high-net-worth individual investors, and is credited with structuring the UK's first HMRC-approved EIS fund. It operates four core products: the Calculus EIS Fund (generalist EIS, £25,000 minimum, 30% income tax relief, 3-year minimum hold, £2-for-£1 target return), the Calculus Knowledge Intensive EIS Fund (≥80% in Knowledge Intensive Companies, 30% relief, with a 5 April 2026 close date), the Calculus VCT (diversified exposure to ~40 UK growth companies, £5,000 minimum, target 5% of NAV annual dividend, 20% income tax relief from April 2026, 5-year hold), and the Calculus Inheritance Tax Solution (Alchemy/Alchemy Plus Funds investing via secured loans in UK film and TV productions, £25,000 minimum, 100% IHT exemption after 2 years up to £2,500,000, launched January 2026).

The firm generates revenue through recurring management fees on assets under management across these funds plus performance fees aligned with investor returns. Distribution is dual-channel: direct investor applications via the calculuscapital.com portal and paper forms, and indirect distribution through financial advisers and IFAs (with dedicated tools such as the VCT Illustration request form). Calculus markets itself through content, industry events and EISA Awards — where it has been named Best EIS Fund Manager five times — and currently oversees a portfolio of roughly 40 companies spanning technology, healthcare, life sciences, creative industries, and increasingly AI-enabled platforms (Edify, Arctic Shores), AgTech (Resurrect Bio) and biopharma cold-chain (EnsiliTech). Senior leadership combines the two co-founders with Co-Heads of Investments (Alexander Crawford, Richard Moore), a COO (Julie Ngo), Finance Director (Natalie Evans), and dedicated sales/marketing and media-finance functions.

Calculus is privately held and founder-controlled with no disclosed parent company, external PE ownership or institutional investor; it has maintained independent operation since 1999. The business is UK-only, regulated by the FCA, and a member of the EIS Association and BVCA. Investment ticket sizes of £1m–£3m per transaction sit squarely in the UK lower-mid-market growth-company segment, with active board participation and a multi-award-winning track record of profitable exits (Synpromics, Mologic/Siemens, Rotageek, Mo, CloudTrade, ActiveOps).

Name

Calculus Capital

Legal name

Calculus Capital Limited

Website

https://calculuscapital.com

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

11–50 employees

Short description

Calculus Capital is a London-based, FCA-authorised fund manager (founded 1999) that creates and manages UK tax-efficient private equity funds — EIS, Knowledge Intensive EIS, VCT, and an Inheritance Tax Solution — for high-net-worth individual investors via IFAs and direct distribution.

Ownership category

akta.pro rank

Product category

Tax-Efficient Private Equity / Venture Capital Fund Management

NAICS

Portfolio Management and Investment Advice (523940), Other Investment Pools and Funds (5259)

SIC

Investment Advice (6282)

akta.pro primary industry

Alternative Investments for Private Wealth (Hedge Funds, PE/VC Access, Private Credit) (FSAAABAI)

Keywords

• Tax-efficient investments
• Venture capital trusts
• EIS fund management
• Inheritance tax solutions
• Private equity funds

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Fund Management Fees: Calculus Capital generates revenue through management fees charged on EIS, VCT, and ITS funds under management. The firm also earns performance fees aligned with investor returns.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Calculus Capital creates and manages tax-efficient private equity investment funds for UK high net worth individuals. Its core offerings are the Calculus EIS Fund, Calculus Knowledge Intensive EIS Fund, Calculus VCT, and the Calculus Inheritance Tax Solution (ITS), each providing investors with HMRC-advantaged exposure to UK growth companies, with typical minimum investments between £5,000 and £25,000 per product.

Product overview

Calculus Capital is a UK-based investment firm offering four distinct tax-efficient investment products: the Calculus EIS Fund (generalist EIS investing across technology, healthcare, and entertainment), the Calculus Knowledge Intensive EIS Fund (focused on IP-led businesses in healthcare and technology), the Calculus VCT (providing exposure to ~40 UK growth companies with target 5% annual dividend), and the Calculus Inheritance Tax Solution (offering 100% IHT exemption after 2 years through secured loans to film/TV productions). The firm also manages a portfolio of approximately 40 portfolio companies, including AI-powered platforms (Edify, Arctic Shores), biotechnology companies (Resurrect Bio), SaaS products (Optalitix, Notify), and hospitality technology (Grateful).

Differentiator

Problem solved

Functional benefit

Products and services

• Calculus EIS Fund Enterprise Investment Scheme fund investing in UK growth companies across technology, healthcare, and entertainment, offering 30% income tax relief, capital gains tax exemption, and loss relief. Minimum investment £25,000 with 3-year minimum holding period; targets £2 return for every £1 invested.
• Calculus Knowledge Intensive EIS Fund HMRC-approved EIS Fund focused on knowledge-intensive companies in healthcare and technology sectors, required to invest at least 80% of capital in Knowledge Intensive Companies. Offers 30% income tax relief; income tax relief can be claimed in the tax year the fund closes or carried back to the previous year.
• Calculus VCT Venture Capital Trust offering exposure to a diversified portfolio of approximately 40 entrepreneurial UK growth companies. Target annual dividend of 5% of NAV; minimum investment £5,000 with 5-year minimum holding period; offers 20% income tax relief, tax-free dividends and capital gains, and CGT exemption on disposal.
• Calculus Inheritance Tax Solution (ITS) Specialist Inheritance Tax Solution comprising two alternative investment funds (Alchemy Fund and Alchemy Plus Fund) that invest in companies providing secured loans to film and television productions. Offers 100% IHT exemption after 2 years up to £2,500,000 per investor; minimum investment £25,000; target net annual return 3–4%.

Quantifiable outcome

• Target return of £2 for every £1 invested in EIS Fund
• +2 more outcomes

Named customers2 records

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability14 records

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Emerging players

• Seedrs / Crowdcube: Retail-focused equity crowdfunding platforms offering tax-efficient EIS investments alongside broader private company investing. Adjacent in deal sourcing and HNW investor engagement but distinct in execution and scale.

Direct peers

• Albion Capital: Long-established London-based EIS, VCT, and growth capital manager with comparable multi-product platform serving HNW UK investors through adviser networks.
• Maven Capital Partners: UK regional VCT and EIS manager with comparable cheque sizes and regional UK growth company focus. Strong overlap in smaller-company deal sourcing and IFA distribution.
• Downing LLP: Boutique UK fund manager offering EIS, VCT, and Inheritance Tax Solutions with similar HNW/IFA distribution model. Directly comparable in product mix, customer profile, and London-based operational footprint.
• Foresight Group: Listed UK fund manager with established EIS and VCT franchises plus broader PE/VC exposure. Competes head-to-head in tax-efficient UK growth investing and benefits from stronger institutional distribution.
• Octopus Investments: One of the largest UK managers of EIS, VCT, and IHT (BR) products, with significant overlap in target investor base (HNW individuals, IFAs) and product set. Direct competitor for fund flows across all four of Calculus's product lines.
• Mercia Asset Management: UK regional VCT and growth capital manager competing for similar smaller-company deal flow in UK regions; comparable scale and product offering including Northern VCT and enterprise funds.
• Puma Investments: UK specialist in tax-efficient investments including EIS, VCT, and BR-qualifying products. Overlapping product set, similar HNW focus, and comparable boutique scale.

Broad incumbents

• British Business Bank: UK government-backed economic development bank that influences and competes for EIS/VCT deal flow via co-investment programmes (e.g., Regional Angels Programme). Sets regulatory backdrop and broader market context for Calculus's offerings.

Others

• Hardman & Co: Specialist research and advisory firm covering VCT/EIS sector with publicly cited commentary on Calculus as 'longest-standing managers'. Acts as a research intermediary influencing IFA recommendations and investor perception.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/calculuscapital
• LinkedInlinkedin.com/company/3079586

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments74 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Calculus Capital