# Dmitry Sumin

> Dmitry Sumin is a seed investor in Tallinn backing E-Commerce, B2B and B2C. See 5 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Location: Tallinn, Estonia
- Total investments: 5
- Last investment: Nov 2021
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/dsumin/

Dmitry Sumin is a seed investor in Tallinn focused on E-Commerce and B2B. Dmitry Sumin Founder at Passware, Board Member at Cognitum.ee.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $329k–$595k |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| E-Commerce | 2 | 40% |
| B2B | 1 | 20% |
| B2C | 1 | 20% |
| Retail | 1 | 20% |
| Software | 1 | 20% |

14 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 4 | 80% |
| Pre-Seed | 1 | 20% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Lithuania | 2 | 40% |
| United Kingdom | 1 | 20% |
| Slovakia (Slovak Republic) | 1 | 20% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| SEARADAR | SEARADAR is an online platform that offers yacht booking concierge services for charter captains. It provides yachting in Europe, riverboat booking, gulet booking, sailboat booking, trimaran booking, motorboat booking, and catamaran booking. It was founded in 2017 and is based in Vilnius, Vilniaus Apskritis, Lithuania. | $452.8K | Seed | Nov 16, 2021 |  |
| iERP.ai | iERP is providing to companies all-in-one business prediction platform which is easy to use on-premise solution for business users (with cloud solution on the road map) with purpose build algorithms which are supporting many use cases at affordable price. Our software helps businesses to be more competitive by increasing revenue, customersatisfaction and decreasing cost.We are currently offering: * Sales forecasting - https://ierp.ai/inventory-demand-forecasting/ * Demand forecasting - https://ierp.ai/sales-forecasting-introduction/ * Late payment predictions - https://ierp.ai/debt-ageing/ * Next best offer - https://ierp.ai/next-best-offer/ * Discount recommendations - https://ierp.ai/discount-recommendation/ | $595.3K | Seed | Nov 11, 2021 |  |
| Zenoo | Zenoo is a digital onboarding solution that manages all of the onboarding workflows, internal systems, and 3rd-party services. | $329K | Seed | Jun 28, 2021 |  |
| ZENOO | ZENOO is the healthiest Dog food subscription service. We use human grade ingredients and Freeze drying technology to deliver 100% nutritional value. Dog health has been deteriorating since 1970s. Since then, dog population experienced 900% increase in diabetes and 50% likelihood of developing cancer. Result - loss of a loved pet and huge vetbills. Pet care services are worth 190BN EUR globally and ±5.2% CAGR reaching 270BN EUR in 2025. TAM in the EU is ±14B EUR for premium dog food ±5% CAGR (cat owners audience is the same size). We are a D2C brand within EU at the moment and are developing B2B partnerships in APAC and EMEA regions. | $329K | Seed | Jun 28, 2021 |  |
| ZENOO | ZENOO is the healthiest Dog food subscription service. We use human grade ingredients and Freeze drying technology to deliver 100% nutritional value. Dog health has been deteriorating since 1970s. Since then, dog population experienced 900% increase in diabetes and 50% likelihood of developing cancer. Result - loss of a loved pet and huge vetbills. Pet care services are worth 190BN EUR globally and ±5.2% CAGR reaching 270BN EUR in 2025. TAM in the EU is ±14B EUR for premium dog food ±5% CAGR (cat owners audience is the same size). We are a D2C brand within EU at the moment and are developing B2B partnerships in APAC and EMEA regions. | $357.9K | Pre-Seed | Jun 28, 2021 |  |

5 of 5 investments shown.

## Co-investors
- [Angels Band](https://shizune.co/investors/profile/angel-band) — VC Fund, 3 deals together
- [Lumos Capital Group](https://shizune.co/investors/profile/lumos-capital-group) — VC Fund, 3 deals together
- [Wave Ventures](https://shizune.co/investors/profile/wave-ventures) — VC Fund, 3 deals together
- [Baltic Sandbox](https://shizune.co/investors/profile/baltic-sandbox) — VC Fund, 1 deal together
- [CB Investment Management](https://shizune.co/investors/profile/cb-investment-management) — VC Fund, 1 deal together
- [LUMUS Investment Collective](https://shizune.co/investors/profile/lumus-investment-collective) — VC Fund, 1 deal together

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## FAQ

### What does Dmitry Sumin invest in?

Dmitry Sumin invests primarily in E-Commerce, B2B and B2C startups, most often at Seed and Pre-Seed stage. Most of the 5 investments tracked by Shizune back companies in Lithuania. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Dmitry Sumin's check size?

Dmitry Sumin typically joins rounds of $329k–$595k at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Dmitry Sumin participates in.

### When did Dmitry Sumin last invest?

The most recent investment recorded for Dmitry Sumin closed in Nov 2021. 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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