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Photo of John Glencross, CEO and Co-Founder at Calculus, London

John Glencross

CEO and Co-Founder

John co-founded Calculus with Susan McDonald in 1999, creating one of the UK’s most successful, independent venture capital and private equity firms focused on investing in growth companies.

John has invested in, advised on, or negotiated more than 100 transactions and served on publicly quoted and private corporate boards. He is a director of several of the companies which Calculus has invested in.

Before co-founding Calculus, John served as a European Corporate Finance Director at UBS, and, prior to this he was Head of Mergers and Acquisitions at Phillips and Drew, a 100-year-old London-based financial institution. At the start of his career, John qualified as a Chartered Accountant with Peat Marwick (subsequently KPMG), John has an MA from Oxford University in Philosophy, Politics and Economics.

Photo of Susan McDonald, Chairman and Co-Founder at Calculus, London

Susan McDonald

Chairman and Co-Founder
Photo of Julie Ngo, Chief Operating Officer at Calculus, London

Julie Ngo

Chief Operating Officer
Photo of Richard Moore, Co-Head of Investments at Calculus, London

Richard Moore

Co-Head of Investments
Photo of Alexander Crawford, Co-Head of Investments at Calculus, London

Alexander Crawford

Co-Head of Investments
Photo of Dominic Harris, Head of Portfolio Management at Calculus, London

Dominic Harris

Head of Portfolio Management
Photo of Elizabeth Klein, Investment Director at Calculus, London

Elizabeth Klein

Investment Director
Photo of Arvind Shandilya, Investment Associate at Calculus, London

Arvind Shandilya

Investment Associate
Photo of Aitian Li, Investment Associate at Calculus, London

Aitian Li

Investment Associate
Photo of Smit Mehta, Investment Associate at Calculus, London

Smit Mehta

Investment Associate
Photo of Sanskriti Singh, Investment Analyst at Calculus, London

Sanskriti Singh

Investment Analyst
Photo of Madeleine Ingram, Director, Co-Head, Sales & Marketing at Calculus, London

Madeleine Ingram

Director, Co-Head, Sales & Marketing
Photo of Francesca Rayneau, Director, Co-Head, Sales & Marketing at Calculus, London

Francesca Rayneau

Director, Co-Head, Sales & Marketing
Photo of Matthew Moynes, Director, Investor Relations and Marketing at Calculus, London

Matthew Moynes

Director, Investor Relations and Marketing
Photo of Oliver Warren, Assistant Director, Sales & Marketing at Calculus, London

Oliver Warren

Assistant Director, Sales & Marketing
Photo of Frank Spurway, Associate, Sales & Marketing at Calculus, London

Frank Spurway

Associate, Sales & Marketing
Photo of Natalie Evans, Finance Director at Calculus, London

Natalie Evans

Finance Director
Photo of William Prince, Financial Controller at Calculus, London

William Prince

Financial Controller
Photo of Richard Banks, Fund Administration Analyst at Calculus, London

Richard Banks

Fund Administration Analyst
Photo of Safah Abdul-Rahman, Finance Systems Associate at Calculus, London

Safah Abdul-Rahman

Finance Systems Associate
Photo of Ken Edwards, Non-Executive Director at Calculus, London

Ken Edwards

Non-Executive Director

Important Information

The investments referred to in this website are not suitable for all investors. Calculus Capital Limited is not able to give advice to prospective investors about the suitability of the investments. Prospective investors are recommended to seek specialist tax and financial advice before investing in the Calculus EIS Fund or Calculus VCT.

An investment into the Calculus EIS Fund of Calculus VCT may only be made on the basis of reading in full the information set out in the relevant Information Memorandum or prospectus.

When investing, your capital is at risk. The value of shares and income from them may go down as well as up and despite the tax relief you may not recover the amount originally invested. An investment in smaller and unquoted companies carries a higher risk than many other forms of investment. Shares in unquoted companies are not readily marketable. You should not invest in an EIS or VCT unless you can afford to lose some or all of your capital.

An EIS or VCT investment is only appropriate for investors with a medium to long term investment horizon; the timing and extent of realisation cannot be predicted and may extend beyond five years. It is not possible to allow a partial withdrawal of your investment. You may request a total withdrawal, but since many investments made will be in unquoted companies, this may not be possible. Withdrawal within three years for the EIS and five years for the VCT would lead to repayment of any tax reliefs received.

The tax benefits available depend upon your individual circumstances and these benefits may change dependent upon future legislation.

I have read and understood this important information

Important Information

The investments referred to in this website are not suitable for all investors. Calculus Capital Limited is not able to give advice to prospective investors about the suitability of the investments. Prospective investors are recommended to seek specialist tax and financial advice before investing in the Calculus EIS Fund or Calculus VCT.

An investment into the Calculus EIS Fund of Calculus VCT may only be made on the basis of reading in full the information set out in the relevant Information Memorandum or prospectus.

When investing, your capital is at risk. The value of shares and income from them may go down as well as up and despite the tax relief you may not recover the amount originally invested. An investment in smaller and unquoted companies carries a higher risk than many other forms of investment. Shares in unquoted companies are not readily marketable. You should not invest in an EIS or VCT unless you can afford to lose some or all of your capital.

An EIS or VCT investment is only appropriate for investors with a medium to long term investment horizon; the timing and extent of realisation cannot be predicted and may extend beyond five years. It is not possible to allow a partial withdrawal of your investment. You may request a total withdrawal, but since many investments made will be in unquoted companies, this may not be possible. Withdrawal within three years for the EIS and five years for the VCT would lead to repayment of any tax reliefs received.

The tax benefits available depend upon your individual circumstances and these benefits may change dependent upon future legislation.

I have read and understood this important information