
Lifeline Ventures is a Helsinki-based, sector-agnostic early-stage venture capital firm founded by serial entrepreneurs in 2009. The firm partners closely with resilient founders from the very beginning of their journey, investing at pre-seed and seed stages across technology sectors.
Their most common stage is seed (41% of deals). Average disclosed round size is $32.3M (across 70 rounds with reported amounts).
Portfolio
92
Fund Size
$470M
Top Stage
Seed
Last 12 Mo
8
Team
Teemu Mattila
PARTNER
Laura Hyry
FINANCE MANAGER
Sonja Seppälä
ADMIN AND OPERATIONS MANAGER
Tessa Tamminen
OPERATIONS
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
137 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| Series A | $14M | Jul 2026 | |
| RReduciner | Seed | — | May 2026 |
| Unknown | $117M | Apr 2026 | |
| Seed | — | Mar 2026 | |
| Series A | — | Mar 2026 | |
| Series A | $31M | Feb 2026 | |
| Series A | $31M | Feb 2026 | |
| Pre-Seed | — | Jan 2026 | |
| Series A | $14M | Jan 2026 | |
| Series B | — | Jan 2026 | |
| Series E | — | Dec 2025 | |
| TTime Atlas Labs | Seed | — | Sep 2025 |
| Growth | — | Jul 2025 | |
| Series A | — | Jun 2025 | |
| Series A | — | May 2025 | |
| Series B | $25.6M | May 2025 | |
| Seed | $25.6M | May 2025 | |
| Seed | — | Jan 2025 | |
| Pre-Seed | $1.5M | Jan 2025 | |
| IIn Parallel | Seed | — | Nov 2024 |
| Seed | — | Oct 2024 | |
| Unknown | — | Oct 2024 | |
| VVaire | Seed | $4M | Jul 2024 |
| Seed | $4M | Jul 2024 | |
| Unknown | — | Jun 2024 |
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Top Co-Investors
Tesi28 shared
True Ventures10 shared
Business Finland9 shared
Draper Associates6 shared
Joint Effects5 shared
EQT Ventures5 shared
High-Tech Gründerfonds5 shared
Earlybird Venture Capital4 shared
Reinventure Group4 shared
Reaktor4 shared
Kima Ventures4 shared
Balderton Capital4 shared
Wave Capital4 shared
Maki.vc3 shared
Volvo Cars Tech Fund3 shared
Atomico3 shared
Foxconn3 shared
Highland Europe3 shared
Last updated: 20 October 2026