# 24 Haymarket: portfolio, investments and team

> 24 Haymarket is an angel network based in United Kingdom. 45 investments on record, 3 in the last 12 months, latest Jul 2026.

Source: https://millionrounds.com/fund/24haymarket (Millionrounds; every figure on the page links to its filing or article)

United Kingdom · [Investor](https://millionrounds.com/investors)

# 24 Haymarket

Last cheque observed Jul 2026; 45 cheques on record.

Deploying now Angel network

Seed Series A Series B People Of Color Woman Led Female Founders

Deploying now

**50%** of best year **3** **cheques in 12 months**, 45 on record

Since the last cheque **110** days **00** hrs **00** min **00** sec

Median round **$3.0M** Cheque size, as they say **$100K – $5.0M** Rounds led **0 of 45** Sole investor **10 rounds** Mostly in **United Kingdom, 93%**

Pitch 24 Haymarket

## 24 Haymarket highlights

- 01 3 cheques in the last 12 months
- 02 Mostly Venture and Series A: 78% of its rounds
- 03 Sole investor in 10 rounds, median $875K

## What they do

> A micro growth equity firm investing in high-growth technology companies across the UK From their own website

- **Type:** Angel network (from a list, unverified)
- **Cheque size:** $100K – $5.0M as they say
- **Stages:** Seed Series A Series B Growth
- **Sectors:** People Of Color Woman Led Female Founders
- **Based in:** London, United Kingdom
- **Cold pitches:** Not stated

## The record

Every round we can evidence, newest first **45 appearances**

- **2026** 3 rounds
- **Jul** **[Dogtooth Technologies](https://millionrounds.com/company/dogtooth-technologies)** Growth · GB · Firms' own news pages **$19M** With 6 others
- **Jan** **[Dragonfly AI](https://millionrounds.com/company/dragonfly-ai)** Venture · GB **$6.9M** With 2 others
- **Jan** **[BirdsEyeView](https://millionrounds.com/company/birdseyeview)** Venture · GB **Undisclosed** With 3 others
- **2025** 4 rounds
- **Oct** **[Previsico](https://millionrounds.com/company/previsico)** Venture · GB **Undisclosed** With 3 others
- **Aug** **[WATR](https://millionrounds.com/company/watr)** Venture · GB **Undisclosed** With 2 others
- **Jun** **[FANZO](https://millionrounds.com/company/fanzo)** Venture · GB **$875K** Sole investor
- **Mar** **[myGwork](https://millionrounds.com/company/mygwork)** Venture · GB **Undisclosed** With 1 other
- **2024** 5 rounds
- **Dec** **[onHand](https://millionrounds.com/company/onhand)** Venture · GB **$940K** With 2 others
- **Nov** **[pixlbio](https://millionrounds.com/company/pixlbio)** Venture · GB **$136K** With 2 others
- **Sept** **[Optalitix](https://millionrounds.com/company/optalitix)** Venture · GB **$3.0M** With 1 other
- **Jul** **[Angoka](https://millionrounds.com/company/angoka)** Venture · GB **Undisclosed** With 1 other
- **Jan** **[Blackbullion](https://millionrounds.com/company/blackbullion)** Venture · GB **Undisclosed** With 1 other
- **2023** 6 rounds
- **Dec** **[CyberOwl](https://millionrounds.com/company/cyberowl)** Venture · GB **Undisclosed** With 3 others
- **Oct** **[Mogrify](https://millionrounds.com/company/mogrify)** Series A · GB **$10M** With 2 others
- **Jul** **[Huq Industries](https://millionrounds.com/company/huq-industries)** Series A · GB **$5.2M** With 2 others
- **May** **[Interface Polymers](https://millionrounds.com/company/interface-polymers)** Series A · GB **$8.0M** Sole investor
- **Feb** **[DrDoctor](https://millionrounds.com/company/drdoctor)** Series B · GB **$12M** With 1 other
- **Jan** **[Feebris](https://millionrounds.com/company/feebris)** Venture · DE **Undisclosed** With 3 others
- **2022** 4 rounds
- **Jul** **[Hypetex](https://millionrounds.com/company/hypetex)** Grant · GB **$139K** With 1 other
- **Jun** **[Spoke London](https://millionrounds.com/company/spoke-london)** Crowdfunding · GB **$6.1M** With 3 others
- **Mar** **[amicable](https://millionrounds.com/company/amicable)** Seed · GB **$1.6M** With 1 other
- **Jan** **[Smartia](https://millionrounds.com/company/smartia)** Series A · BR **$2.3M** With 2 others
- **2021** 4 rounds
- **Oct** **[Sphere Bio](https://millionrounds.com/company/sphere-bio)** Venture · GB **$41M** With 4 others
- **Jun** **[Calira](https://millionrounds.com/company/calira)** Seed **$3.5M** With 1 other
- **Apr** **[CyberHive](https://millionrounds.com/company/cyberhive)** Seed **$2.5M** Sole investor
- **Apr** **[Osprey Flight Solutions](https://millionrounds.com/company/osprey-flight-solutions)** Seed **$3.1M** Sole investor
- **2020** 2 rounds
- **Oct** **[Membr](https://millionrounds.com/company/membr)** Venture **Undisclosed** Sole investor
- **Jun** **[Flusso](https://millionrounds.com/company/flusso)** Series A **$5.7M** With 2 others
- **2019** 6 rounds
- **Oct** **[Spoke](https://millionrounds.com/company/spoke)** Series B · GB · EU-Startups **$11M** With 3 others
- **Oct** **[Mogrify](https://millionrounds.com/company/mogrify)** Series A · GB · FinSMEs **$16M** With 2 others
- **Sept** **[Spirable](https://millionrounds.com/company/spirable)** Series A **$7.4M** With 2 others
- **Jun** **[CyberOwl](https://millionrounds.com/company/cyberowl)** GB · FinSMEs **$1.3M** With 1 other
- **Jun** **[Privitar](https://millionrounds.com/company/privitar)** Series B · GB · FinSMEs **$40M** With 4 others
- **Jan** **[Sphere Fluidics](https://millionrounds.com/company/sphere-fluidics)** GB · FinSMEs **$2.0M** With 3 others
- **2018** 6 rounds
- **Dec** **[Insignia Technologies](https://millionrounds.com/company/insignia-technologies)** Venture **$107K** With 1 other
- **Dec** **[Deliciously Ella](https://millionrounds.com/company/deliciously-ella)** Venture **$763K** Sole investor
- **Nov** **[Backpain Help](https://millionrounds.com/company/backpain-help)** Venture **$116K** Sole investor
- **Jul** **[Peptinnovate](https://millionrounds.com/company/peptinnovate)** Venture **$288K** Sole investor
- **Jul** **[Lasula](https://millionrounds.com/company/lasula)** Venture **$1.1M** With 1 other
- **Mar** **[FluteOffice](https://millionrounds.com/company/fluteoffice)** Venture **$147K** Sole investor

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

## The team

Named by the firm itself, on a filing, its Form ADV or its company registration **12 named**

MS **Marek Stefan Gumienny** director i Company register since 2012

NA **Nicholas Andrew Lindsay Stuart** director i Company register since 2012

PM **Paul Michael Tselentis** director i Company register since 2015

SN **Simon Neville Arden Leefe** director i Company register since 2012

CE **Charles Edward Seager Green** director i Company register since 2012

DM **David Mcneil Mitchell** director i Company register since 2012

IJ **Ian James Gray** director i Company register since 2012

JL **Jean Louis Guy Lucien Charles Marie Rihon** director i Company register since 2012

LG **Lindsay George Dibden** director i Company register since 2015

MK **Michael Kane O'Donnell** director i Company register since 2012

PJ **Paul John Dunkley** director i Company register since 2012

TR **Thomas Roger Attwood** director i Company register since 2012

We also hold **17** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

## What the register says

From the firm's own filings with the UK company register, which it must file accurately by law

- **Companies House:** 07936588, since 2012

## The cheque

Seed Series A Series B

Median round joined **$3.0M** the round, not its cheque Alone, median **$875K**

Led 0 of 45 rounds **0%**

- **Said size:** $100K – $5.0M
- **Sole investor:** 10 rounds
- **Last cheque:** Jul 2026

Rounds by stage said on their site

- Venture *22*
- Series A said *10*
- Seed said *4*
- Series B said *3*
- Crowdfunding *2*
- Growth said *-*

Cheques by month Led Joined

Nov 2023 Oct 2026

Often in the room with

- [Innovate UK](https://millionrounds.com/fund/innovate-uk) 5
- [Parkwalk](https://millionrounds.com/fund/parkwalk) 5
- [ACF Investors](https://millionrounds.com/fund/acf-investors) 3
- [Business Growth Fund](https://millionrounds.com/fund/bgf) 3
- [QVentures](https://millionrounds.com/fund/qventures) 3
- [Foresight Group](https://millionrounds.com/fund/foresight-group) 2

**Pitching 24 Haymarket?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque.

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## Who they invest alongside

The investors most often in the same rounds as 24 Haymarket. A count of rooms they were both in, not a relationship either has claimed.

[**Innovate UK** VC firm **5** rounds together](https://millionrounds.com/fund/innovate-uk)[**Parkwalk** VC firm **5** rounds together](https://millionrounds.com/fund/parkwalk)[**ACF Investors** VC firm **3** rounds together](https://millionrounds.com/fund/acf-investors)[**Business Growth Fund** Private equity **3** rounds together](https://millionrounds.com/fund/bgf)[**QVentures** Family office **3** rounds together](https://millionrounds.com/fund/qventures)[**Foresight Group** Private equity **2** rounds together](https://millionrounds.com/fund/foresight-group)[**MassChallenge** Accelerator **2** rounds together](https://millionrounds.com/fund/masschallenge)[**Mercia Asset Management** VC firm **2** rounds together](https://millionrounds.com/fund/mercia-ventures)[**Salesforce Ventures** Corporate VC **2** rounds together](https://millionrounds.com/fund/salesforce-ventures)[**Seraphim Space** VC firm **2** rounds together](https://millionrounds.com/fund/seraphim-space)

## Recently backed

The latest companies 24 Haymarket put money into.

[**Dragonfly AI** $6.9M · Jan 2026](https://millionrounds.com/company/dragonfly-ai)[**BirdsEyeView** Jan 2026](https://millionrounds.com/company/birdseyeview)[**Previsico** Oct 2025](https://millionrounds.com/company/previsico)[**WATR** Aug 2025](https://millionrounds.com/company/watr)[**FANZO** $875K · Jun 2025](https://millionrounds.com/company/fanzo)[**pixlbio** $136K · Nov 2024](https://millionrounds.com/company/pixlbio)

## Quick answers about 24 Haymarket

### What does 24 Haymarket invest in?

24 Haymarket invests most often at Venture and Series A (78% of the rounds on record), in sectors such as People Of Color, Woman Led and Female Founders.

### How active is 24 Haymarket?

45 investments on record, 3 of them in the last 12 months. The most recent was in Jul 2026.

### What has 24 Haymarket invested in recently?

Its most recent investments on record: Dogtooth Technologies (Growth, Jul 2026), Dragonfly AI (Venture, Jan 2026) and BirdsEyeView (Venture, Jan 2026).

### How big are 24 Haymarket's cheques?

The median round it joins is $3.0M. It says it writes cheques of $100K to $5.0M.

### Does 24 Haymarket lead rounds?

Rarely, if at all: none of its 45 investments on record names it as the lead.

### Where does 24 Haymarket invest?

Most of the companies it backs are in the United Kingdom (93%).

### Is 24 Haymarket investing now?

Yes: it is actively investing, with 3 investments in the last 12 months.

### Who does 24 Haymarket invest alongside?

Most often Innovate UK (5 rounds together), Parkwalk (5 rounds together) and ACF Investors (3 rounds together).

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