# Callum Illsley

> Callum Illsley is a seed investor backing Apps, Events and Software. See 1 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Total investments: 1
- Last investment: Jun 2022
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/callum-illsley-57240b18b/

Callum Illsley is a seed investor focused on Apps and Events. Callum Illsley

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Apps | 1 | 100% |
| Events | 1 | 100% |
| Software | 1 | 100% |
| Scheduling | 1 | 100% |
| Mobile Apps | 1 | 100% |

6 industries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Howbout | The social planning app that combines events, group chats and calendar sharing to make organising plans simple. Automatically find dates that work, easily coordinate diaries and arrange plans with friends in seconds. | $2.5M | Seed | Jun 21, 2022 |  |

1 of 1 investments shown.

## Co-investors
- [ACF Investors](https://shizune.co/investors/profile/angel-cofund) — VC Fund, 1 deal together
- [Angel Invest](https://shizune.co/investors/profile/angel-invest-ventures) — VC Fund, 1 deal together
- [Crowdcube](https://shizune.co/investors/profile/crowdcube) — VC Fund, 1 deal together
- [Supernode Global](https://shizune.co/investors/profile/rooks-nest-ventures) — VC Fund, 1 deal together

## Similar investors

### Similar industry
- [Robert DeMaio](https://shizune.co/investors/profile/robert-charles-demaio) — Angel Investor
- [SV Angel](https://shizune.co/investors/profile/sv-angel) — VC Fund
- [Lightspeed Venture Partners](https://shizune.co/investors/profile/lightspeed-venture-partners) — VC Fund

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

### Similar country
- [SFC Capital](https://shizune.co/investors/profile/startup-funding-club) — VC Fund
- [Fuel Ventures](https://shizune.co/investors/profile/fuel-ventures-fund) — VC Fund
- [Business Growth Fund](https://shizune.co/investors/profile/business-growth-fund) — VC Fund

## Featured in investor lists
- [Social Media Angel Investors in United Kingdom](https://shizune.co/investors/social-media-angel-investors-united-kingdom)

## FAQ

### What does Callum Illsley invest in?

Callum Illsley invests primarily in Apps, Events and Software startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in United Kingdom. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Callum Illsley last invest?

The most recent investment recorded for Callum Illsley closed in Jun 2022. Shizune tracks 1 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co
