# Positive Ventures

> Positive Ventures is a VC fund backing Artificial Intelligence and Software. See 36 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Brasil, Brazil
- Total investments: 36
- Last investment: Feb 2026
- Lead investor: 11%
- Fund size: $10M
- Last fund: Jan 2020
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/positiveventures/
- Website: http://positive.ventures/
- Facebook: https://www.facebook.com/wearepositiveventures/

Positive Ventures is an entrepreneurs-run B-Certified VC based in São Paulo and SFO backing founders building breakthrough technologies to solve pressing social and environmental challenges, global south first.

## Contacts

5 contacts available for Positive Ventures. Shizune tracks 10 team members at Positive Ventures. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/positive-ventures?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $90k–$4.7M |
| Pre-Seed | $500k–$3M |
| Series A | $1.1M–$28M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Artificial Intelligence | 5 | 14% |
| Software | 4 | 11% |
| Information Technology | 4 | 11% |
| Education | 3 | 8% |
| Health Care | 3 | 8% |

49 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 7 | 19% |
| Series A | 7 | 19% |
| Pre-Seed | 4 | 11% |
| Funding Round | 2 | 6% |
| Convertible Note | 2 | 6% |

6 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Brazil | 12 | 33% |
| United States | 8 | 22% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Alex Seibel | Partner | 0 | https://shizune.co/investors/profile/alex-seibel |
| Andrea A. Oliveira Kestenbaum | Co-founder and Co-CEO | 0 | https://shizune.co/investors/profile/andrea-a-oliveira-kestenbaum |
| Bruna Constantino | Co-Founder, CMO and Impact Chief Officer | 0 | https://shizune.co/investors/profile/bruna-constantino |
| Fabio F. Meyer Kestenbaum | Co-Founder and Co-CEO | 0 | https://shizune.co/investors/profile/fabio-kestenbaum |
| Gustavo Behring | Analyst | 0 | https://shizune.co/investors/profile/gustavo-behring |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| BEMAGRO | BEMAGRO offers imaging solutions through artificial intelligence to promote productive and sustainable agriculture. | $5.8M | Series A | Feb 14, 2026 |  |
| BackChannel | BackChannel is an online B2B platform for inventory transactions and for buying and selling online goods. | $4.7M | Seed | Nov 19, 2025 |  |
| Beltic | Beltic helps fintechs onboard businesses faster by using KYB data, signals, and LLMs to assess risk, flag fraud, and explain decisions. | $1.5M | Pre-Seed | Aug 31, 2025 |  |
| Fourier | Fourier is developing a modular and fully automated hydrogen production system, designed to be deployed where and when it is needed the most. This eliminates the need for hydrogen transportation. The company aims to make on-site hydrogen universally accessible, contributing to a sustainable energy future. Their innovative architecture is a keyelement in this mission. | $18.6M | Series A | Apr 02, 2025 |  |
| Yuna | Yuna develops an AI-driven platform that provides personalized, interactive, and free children's stories. | $1.6M | Pre-Seed | Apr 29, 2024 |  |
| Windfall Bio | Windfall Bio’s nature-based solution harnesses natural microbes known as mems to capture and transform waste methane from any source into valuable outputs, like fertilizer for organic farming, carbon credits, and progress toward sustainability goals. With Windfall technology, any methane-intensive industry—like oil & gas, agriculture, and wastemanagement—can operate more efficiently while improving profitability and environmental impact. Windfall’s solution makes sense for both small and large operations and high and low concentrations of methane and can be easily and rapidly scaled across the globe, providing a low-cost, low-maintenance way to transform methane emissions into real value. Founded in 2022 and based in San Mateo, CA, Windfall is venture-backed by top-tier firms including Amazon’s Climate Pledge Fund, B37 Ventures, Baruch Future Ventures, Bessemer Venture Partners, Breakthrough Energy Ventures, Cavallo Ventures, Global Brain (through its Norinchukin Innovation Fund L.P.), Incite Ventures, MCJ Collective, Mayfield, Positive Ventures, Prelude Ventures, and UNTITLED (a fund backed by the Tetra Laval family). To learn more about how Windfall is transforming methane from a costly liability into a powerful tool for efficiency and profitability, visit www.windfall.bio. | $28M | Series A | Apr 08, 2024 |  |
| SINAI Technologies | SINAI Technologies builds enterprise decarbonization software to monitor, analyze, price, and reduce emissions. The company's tools enable organizations to automate carbon analysis and reporting for their entire operation, transforming the way they interact with their business, value chain, and the environment.Founded in 2017, thecompany's mission is to provide organizations with the technology necessary to build deep decarbonization strategies. |  | Venture - Series Unknown | Mar 15, 2024 |  |
| Funga | Funga uses the forest fungal microbiome to improve forestry outcomes and address the climate crisis. The company was founded in 2021 and is headquartered in Austin, Texas, United States. |  | Venture - Series Unknown | Mar 01, 2024 |  |
| Pathways Technologies | Pathways is a full stack sustainability platform for the construction industry. | $2.5M | Pre-Seed | Feb 14, 2024 |  |
| BackChannel | BackChannel is an online B2B platform for inventory transactions and for buying and selling online goods. | $3M | Seed | Jan 01, 2024 |  |

10 of 36 investments shown.

## Co-investors
- [Latitud](https://shizune.co/investors/profile/latitud) — VC Fund, 5 deals together
- [Breakthrough Energy Ventures](https://shizune.co/investors/profile/breakthrough-energy-ventures) — VC Fund, 3 deals together
- [Canary](https://shizune.co/investors/profile/canary-5) — VC Fund, 3 deals together
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund, 3 deals together
- [Jetstream](https://shizune.co/investors/profile/jetstream-6ad0) — VC Fund, 3 deals together
- [Norte Ventures](https://shizune.co/investors/profile/norte-ventures) — VC Fund, 3 deals together

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## FAQ

### What does Positive Ventures invest in?

Positive Ventures invests primarily in Artificial Intelligence, Software and Information Technology startups, most often at Seed and Series A stage. Most of the 36 investments tracked by Shizune back companies in Brazil. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Positive Ventures's check size?

Positive Ventures typically joins rounds of $90k–$4.7M at Seed, $500k–$3M at Pre-Seed and $1.1M–$28M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Positive Ventures participates in.

### How do I contact Positive Ventures?

Public channels for Positive Ventures include LinkedIn, the website linked on this profile and Facebook. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at Positive Ventures?

The team at Positive Ventures includes Alex Seibel (Partner), Andrea A. Oliveira Kestenbaum (Co-founder and Co-CEO) and Bruna Constantino (Co-Founder, CMO and Impact Chief Officer), among 10 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.

### 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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