# Juha Halttunen

> Juha Halttunen is a seed investor at Jongla backing Industrial Manufacturing. See 2 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: Jongla
- Location: Helsinki, Finland
- Total investments: 2
- Last investment: Mar 2023
- Lead investor: 50%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/juha-halttunen-3a624ba1
- X (Twitter): https://twitter.com/juha_halttunen
- Website: https://x.com/juha_halttunen

Juha Halttunen is a seed investor at Jongla in Helsinki focused on Industrial Manufacturing and Environmental Engineering. Juha Halttunen - Chairman @ Jongla

## Contacts

5 contacts available for Juha Halttunen: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/juha-halttunen?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Industrial Manufacturing | 1 | 50% |
| Environmental Engineering | 1 | 50% |

### Stage

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

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Carbonaide | Carbonaide offers the most effective and robust carbonization technology for pre-cast concrete manufacturers. | $2M | Seed | Mar 28, 2023 |  |
| Jongla | Jongla is an innovative start-up company, specializing in device and platform independent mobile messaging. Founded in 2009, Jongla is a Finish-based company founded by Arto Boman, and owned by a group of private investors, partner companies and management. | $1.5M | Series A | Nov 13, 2013 |  |

2 of 2 investments shown.

## Co-investors
- [Vantaan Energia](https://shizune.co/investors/profile/vantaan-energia-oy) — VC Fund, 1 deal together

## About Jongla

VC Fund · Helsinki, Finland

Jongla is an innovative start-up company, specializing in device and platform independent mobile messaging. Founded in 2009, Jongla is a Finish-based company founded by Arto Boman, and owned by a group of private investors, partner companies and management.

3 contacts available at Jongla.

| Name | Title | Profile |
| --- | --- | --- |
| Juha Halttunen | Chairman | https://shizune.co/investors/profile/juha-halttunen |
| Markus Tourunen | Creative Director | — |
| Were Oyomno | Head of Product & Development | — |

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## FAQ

### What does Juha Halttunen invest in?

Juha Halttunen invests primarily in Industrial Manufacturing and Environmental Engineering startups, most often at Seed and Series A stage. Most of the 2 investments tracked by Shizune back companies in Finland. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Juha Halttunen?

Public channels for Juha Halttunen include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### When did Juha Halttunen last invest?

The most recent investment recorded for Juha Halttunen closed in Mar 2023. 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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