# 24Haymarket

24Haymarket is an Asset Manager based in London, United Kingdom.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** London, United Kingdom
- **Region:** Europe
- **Address:** 3rd & 4th Floor, 24 Haymarket, London SW1Y 4DG, United Kingdom
- **Founded:** 2012
- **Assets under management:** Undisclosed
- **Website:** www.24haymarket.com
- **LinkedIn:** https://www.linkedin.com/company/24haymarket

## Regulatory record

- **Reports private funds:** No

## About

24Haymarket is a London-based venture capital firm that invests in small and medium-sized companies. The firm has made 88 investments, including a Series A - III investment in Dragonfly AI on January 28, 2026. 24Haymarket has facilitated 12 portfolio exits, with Osprey Flight Solutions exiting on September 03, 2025.

## Sectors

- Venture Capital

## Offices

- Edinburgh, United Kingdom

## People

- Paul Tselentis — CEO and Co-founder
- Marek Gumienny — Founder member and Board Member
- Simon Leefe — Co-founder
- Lindsay Stuart — Co-founder
- Charlie Green — Director

## Questions

### Who runs investment decisions at 24Haymarket?

Paul Tselentis serves as CEO and co-founder. Marek Gumienny, Simon Leefe and Lindsay Stuart act as co-founders with board or investment involvement.

### Does 24Haymarket participate in fund commitments or only direct deals?

The firm makes direct investments and has entered commitments alongside British Business Investments.

### What investment stages does 24Haymarket typically target?

The firm covers seed, start-up, expansion and growth stages across venture and private equity opportunities.

### Where does 24Haymarket maintain offices?

Headquarters sit at 24 Haymarket in London with a second office at 44 Charlotte Square in Edinburgh.

### How is 24Haymarket related to ThinkForward?

Director Charlie Green chairs the ThinkForward charity, which operates separately from the investment company.

## Related profiles

- [24 Carrot VC](https://altss.com/profile/24-carrot-vc)
- [25 Capital Partners](https://altss.com/profile/25-capital-partners)

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Last updated: 2026-06-03T20:00:00.000Z

Canonical page: https://altss.com/profile/24haymarket

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