Start Ventures (formerly BiG Start Ventures) is a Lisbon-based venture capital firm managed by Onetier Partners SCR, S.A., investing globally in early-stage B2B startups in fintech, insurtech, regtech, and cybersecurity.
Deal activity increased 50% year-over-year (3 deals in the last 12 months). Their most common stage is seed (56% of deals). Average disclosed round size is $4.2M (across 13 rounds with reported amounts).
Portfolio
22
Fund Size
—
Top Stage
Seed
Last 12 Mo
3
Team
NC
Nuno Campos
SENIOR CONSULTANT
CP
Catarina Pinto de Sá
Venture Capital Analyst
MI
Maria Inês Cardoso
Venture Capital Analyst
NM
Nuno Marques Afonso
Venture Capital Analyst
BO
Bruno Oliveira
Operator-Investor
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
25 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Finovox | Series A | — | Jun 2026 |
 WeatherPromise | Series A | $12.8M | Jan 2026 |
 ClaimSorted | Seed | — | Oct 2025 |
 Zango | Seed | — | Jul 2025 |
| Zango | Unknown | $4.8M | Jan 2025 |
| EEthiack | Seed | — | Dec 2024 |
 testRigor | Seed | — | Jan 2024 |
 Coverflex | Series A | — | Jan 2023 |
 Elucidate | Series A | $3.0M | Mar 2021 |
 Les Opticiens Mobiles | Series B | — | Jan 2021 |
 Countingup | Bridge | — | May 2020 |
| Elucidate | Seed | — | Jan 2020 |
 Quartzy | Series B | $17M | Jan 2016 |
 OneSignal | Seed | $2M | Apr 2015 |
 Streem | Seed | $2M | Apr 2014 |
 Lawdingo | Seed | $850K | Oct 2013 |
| FFormafina | Seed | $1.4M | Sep 2013 |
 Siasto | Seed | $750K | Jan 2013 |
| Quartzy | Series A | — | Jan 2013 |
 Comprehend | Seed | $1.2M | Jan 2011 |
 Jove | Seed | — | — |
 Zigfu | Unknown | $150K | — |
| CClaims Carbon | Seed | — | — |
| GGrubwithus | Seed | $1.6M | — |
 WealthKernel | Series A | $7M | — |
Top Co-Investors
Y Combinator10 shared
SV Angel6 shared
Frontline Ventures2 shared
APEX Ventures2 shared
SixThirty Ventures2 shared
Explorer Investments2 shared
BroadOak Capital Partners2 shared
Silicon Badia2 shared
Atomico2 shared
India Quotient2 shared
No Label Ventures2 shared
Notion Capital2 shared
Nexus Venture Partners2 shared
South Park Commons2 shared
Boldstart Ventures2 shared
AV8 Ventures1 shared
Flying Fish1 shared
Ironfire Ventures1 shared
Arbor Ventures1 shared
Betaworks1 shared
Last updated: 20 October 2026