# Phi Square Holdings

> Phi Square Holdings is a VC fund in Luxembourg backing mHealth, Big Data and Software. See 2 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Luxembourg, Luxembourg
- Total investments: 2
- Last investment: Dec 2016
- Lead investor: 100%
- Last updated: Aug 2026
- Website: http://www.phi-square.com

Phi Square Holdings is a VC fund in Luxembourg focused on mHealth and Big Data. Phi Square Holdings SA is a proprietary investment company based in Luxembourg. As investors, They are following strategies which offer high growth potential while displaying very low correlation to global markets; strategies that do not yet, or may no longer, attract mass capital. Information is at the heart of Their investment approach, bothas a means and as an objective, both as a guide and a subject of study.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| mHealth | 1 | 50% |
| Big Data | 1 | 50% |
| Software | 1 | 50% |
| Analytics | 1 | 50% |
| Developer APIs | 1 | 50% |

10 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 1 | 50% |
| Series A | 1 | 50% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Israel | 1 | 50% |
| United States | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| BreezoMeter | BreezoMeter is the provider of street-level and real-time air quality information; their suite of easy-to-integrate APIs includes air pollution, pollen, and active fire data.Product and healthcare brands, such as Siemens, Tata Motors, and allergy pharmaceutical provider ALK, choose to integrate BreezoMeter thanks to their unmatched level ofreal-time accuracy. BreezoMeter is the only AQ provider with a published accuracy validation process.BreezoMeter's exceptional team of multi-disciplinary scientists and engineers has managed to achieve this unparalleled accuracy thanks to a unique multi-data layer approach to air quality based on information from governmental sensors, satellites, weather, traffic, and more.The company then deploys hundreds of air quality calculations at once, using sophisticated modeling and AI, in order to calculate air quality up to a resolution of 0.003 miles (5 meters/16 feet) in 90+ countries on an hourly basis. | $3M | Series A | Dec 13, 2016 |  |
| Reactful | Reactful A.I. and machine learning technology engages and converts your visitors on the web while you have their attention. Boost engagement and conversions by interpreting site visitors’ “digital body language”, and react accordingly in real time. Reactions can be as subtle as gently animating elements on a page, or more directly engagingvisitors with intelligent and timely messages in the form of a reaction or notification. Best of all, Reactful allows marketers to be agile and regain control of their website by launching and updating Reactful campaigns at any time - without ever requiring any coding or technical deployments. | $1.3M | Seed | Sep 06, 2016 |  |

2 of 2 investments shown.

## Co-investors
- [Entrée Capital](https://shizune.co/investors/profile/entree-capital) — VC Fund, 1 deal together
- [Inspiration Ventures](https://shizune.co/investors/profile/inspiration-ventures) — VC Fund, 1 deal together
- Keyrus Innovation Factory — VC Fund, 1 deal together
- [Launchpad Digital Health](https://shizune.co/investors/profile/launchpad-digital-health) — VC Fund, 1 deal together
- [SeedIL Ventures](https://shizune.co/investors/profile/seedil-investment-club) — VC Fund, 1 deal together
- [Shaked Ventures](https://shizune.co/investors/profile/shaked-ventures) — VC Fund, 1 deal together

## Similar investors

### 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

## FAQ

### What does Phi Square Holdings invest in?

Phi Square Holdings invests primarily in mHealth, Big Data and Software startups, most often at Seed and Series A stage. Most of the 2 investments tracked by Shizune back companies in Israel. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Phi Square Holdings last invest?

The most recent investment recorded for Phi Square Holdings closed in Dec 2016. Shizune tracks 2 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.

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