# Siena Capital

> Siena Capital is a VC fund backing Financial Services, CAD and Banking. See 5 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Total investments: 5
- Last investment: Feb 2022
- Lead investor: 0%
- Fund size: $59M
- Last fund: May 2021
- Last updated: Aug 2026
- Website: http://www.siena.ee/

Siena Capital is a VC fund focused on Financial Services and CAD. Siena is a VC firm mainly investing in startups in Estonia and California

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $2.7M–$4.2M |
| Pre-Seed | $50k–$393k |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Financial Services | 2 | 40% |
| CAD | 1 | 20% |
| Banking | 1 | 20% |
| FinTech | 1 | 20% |
| Big Data | 1 | 20% |

15 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 2 | 40% |
| Pre-Seed | 1 | 20% |
| Convertible Note | 1 | 20% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Estonia | 3 | 60% |
| Latvia | 1 | 20% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Solid World | The carbon markets are predicted to be 50x in size up to $50B by 2030. The majority of this market is going to be created through forward investments. One of the big things holding back the forward market today is carbon projects underperforming and the illiquid nature of the carbon investment market. Investing in a project gives you a forwardcontract for future credits. These forward contracts often underdeliver, and you can't do anything with this illiquid future promise for credits in 5+ years.
Solid World DAO accelerates carbon project development through fair, transparent and liquid markets. We de-risk carbon investments and make them liquid. The added safety of investing in carbon space will result in accelerated capital deployment and expansion cycles for carbon projects. They´ve partnered with the top companies in this space like SCB, Vlinder, Emsurge, Arbol, SustGlobal, Toucan, Flowcarbon, OFP.

Since they started in October 2021, they designed special-purpose blockchain infrastructure, have $4M forwards committed for the liquidity pools, and have built a one-of-a-kind world-class team with deep industry knowledge(ACT Commodities, BeZero, eAgronom) and blockchain knowledge(Toucan, Mercado Bitcoin, KlimaDAO) with serial-entrepreneur founders(Glia, eAgronom) who have been featured in Time, sourced tens of millions of forward credits, and are in late-stage talks with multiple trading houses for them to become LP-s on their automated market maker. Their protocol will serve as a financial primitive to build derivatives, collateralised loans, on-chain insurance and other innovations. They have a first-mover advantage in building forward carbon credit infrastructure. | $2.7M | Seed | Feb 01, 2022 |  |
| Wisnio | Great things in business are never done by one person, but by high-performing teams.Teamscope was founded by leading executive search professionals, data scientists, and tech entrepreneurs to help managers make better hiring decisions and build more engaged, high-performing teams.The teamscope platform combines big data analytics withscientific testing to analyze teams and help team leaders make better hiring decisions. Our unique algorithm analyzes the values, personality characteristics, and core competencies of team members to first profile the existing team. Based on that, the platform recommends what characteristics to look for in a candidate and evaluates how well each candidate fits in with the role and the team. The platform then generates a detailed behavioral profile and interview guide for each candidate to help the hiring manager choose the best person for the team. | $1.8M | Convertible Note | Dec 01, 2021 |  |
| Tuum | Tuum is a cloud-native banking platform that is spearheading the next generation of digital innovation in the financial services industry. Built around a microservices architecture, the platform consists of flexible and independent modules covering all retail and business banking capabilities. The platform is API-based for quick and easyintegration and can run on all major cloud providers, as well as on private clouds. Founded by a team of banking and technology experts in 2019, Tuum combines technological excellence with in-depth banking knowledge and packages it into a sophisticated, cutting-edge platform. Tuum currently employs over 60 people with offices in Tallinn, Berlin and Malaga | $4.2M | Seed | Dec 09, 2020 |  |
| CENOS | CENOS redefines engineering simulation software category for mass adoption: FROM enterprise niche and multi-purpose software for 100K simulation experts TO mass adoption of intuitive vertical-focused simulation apps by 10M+ practical engineers in production | $392.6K | Pre-Seed | Feb 21, 2020 |  |
| CENOS | CENOS redefines engineering simulation software category for mass adoption: FROM enterprise niche and multi-purpose software for 100K simulation experts TO mass adoption of intuitive vertical-focused simulation apps by 10M+ practical engineers in production | $50K | Pre-Seed | Jan 20, 2019 |  |

5 of 5 investments shown.

## Co-investors
- [Startup Wise Guys](https://shizune.co/investors/profile/startup-wise-guys) — VC Fund, 3 deals together
- [Draft Ventures](https://shizune.co/investors/profile/draft-ventures) — VC Fund, 2 deals together
- [Taavet+Sten](https://shizune.co/investors/profile/taavet-sten) — VC Fund, 2 deals together
- [500 Global](https://shizune.co/investors/profile/500-startups) — VC Fund, 1 deal together
- [Allegory Labs](https://shizune.co/investors/profile/allegory-labs) — VC Fund, 1 deal together
- [Awesome People Ventures](https://shizune.co/investors/profile/awesome-people-ventures) — VC Fund, 1 deal together

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## FAQ

### What does Siena Capital invest in?

Siena Capital invests primarily in Financial Services, CAD and Banking startups, most often at Seed and Pre-Seed stage. Most of the 5 investments tracked by Shizune back companies in Estonia. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Siena Capital's check size?

Siena Capital typically joins rounds of $2.7M–$4.2M at Seed and $50k–$393k at Pre-Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Siena Capital participates in.

### When did Siena Capital last invest?

The most recent investment recorded for Siena Capital closed in Feb 2022. Shizune tracks 5 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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