# Natan Sztamfater

> Natan Sztamfater is a seed investor at Stamina VC (São Paulo) backing Software and B2B. See 3 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Stamina VC](https://shizune.co/investors/profile/stamina-0ae6)
- Location: São Paulo, Brazil
- Total investments: 3
- Last investment: Nov 2021
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/natansztamfater/?originalSubdomain=br

Natan Sztamfater is a Co-Fundador Stamina VC. Natan Sztamfater attended ESPM Higher School of Advertising and Marketing.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 2 | 67% |
| B2B | 1 | 33% |
| SaaS | 1 | 33% |
| Billing | 1 | 33% |
| Wellness | 1 | 33% |

16 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 2 | 67% |
| Pre-Seed | 1 | 33% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| SleepUp | SleepUp is a digital therapy platform that features sleep monitoring and records. | $362K | Seed | Nov 11, 2021 |  |
| Leadster | Conversational Marketing Platform to Triple your Lead Generation. | $201.7K | Seed | Jun 22, 2021 |  |
| Lexos Tecnologia | We bring a MEO solution \| Marketplace-Engine-Optimization -- Lexos Hub is a SaaS platform that centralizes, automates and analyzes the entire operation of retailers selling online products in multi-channel. Through competitive intelligence, we handle data and provide performance insights for companies to scale their online sales. | $265.5K | Pre-Seed | Mar 25, 2021 |  |

3 of 3 investments shown.

## Co-investors
- [Prana Capital](https://shizune.co/investors/profile/prana-capital) — VC Fund, 2 deals together
- [Bossa Invest](https://shizune.co/investors/profile/bossanova-investimentos) — VC Fund, 1 deal together
- [Gvangels](https://shizune.co/investors/profile/gvangels) — VC Fund, 1 deal together
- [Poli Angels](https://shizune.co/investors/profile/poli-angels) — VC Fund, 1 deal together
- [Sororitê](https://shizune.co/investors/profile/sororit%C3%AA) — VC Fund, 1 deal together

## About Stamina VC

VC Fund

Stamina VC is a Venture Capital fund focused on early-stage startups, with expertise in sales and marketing.

3 contacts available at Stamina VC.

| Name | Title | Profile |
| --- | --- | --- |
| Natan Sztamfater | Co-Founder | https://shizune.co/investors/profile/natan-sztamfater |
| Rafael Arakaki | Co-Founder | https://shizune.co/investors/profile/rafael-arakaki-b844 |
| Rony Sztamfater | Co-Founder | https://shizune.co/investors/profile/rony-sztamfater |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Natan Sztamfater invest in?

Natan Sztamfater invests primarily in Software, B2B and SaaS startups, most often at Seed and Pre-Seed stage. Most of the 3 investments tracked by Shizune back companies in Brazil. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Natan Sztamfater last invest?

The most recent investment recorded for Natan Sztamfater closed in Nov 2021. Shizune tracks 3 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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