# Brett Barna

> Brett Barna is a seed investor backing Consulting, Clean Energy and Renewable Energy. See 2 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Total investments: 2
- Last investment: Nov 2023
- Lead investor: 50%
- Last updated: Aug 2026

Brett Barna is a seed investor focused on Consulting and Clean Energy. Brett Barna

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $1.2M–$2.5M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Consulting | 1 | 50% |
| Clean Energy | 1 | 50% |
| Renewable Energy | 1 | 50% |
| Retail Technology | 1 | 50% |
| Environmental Consulting | 1 | 50% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Bangladesh | 1 | 50% |
| United States | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Tiger New Energy | Tiger New Energy is a clean energy firm that provides cutting-edge battery switching technology to encourage environmentally friendly mobility options. | $2.5M | Seed | Nov 08, 2023 |  |
| Oakscale | Oakscale is a tech-enabled franchise development agency that rapidly grows high-potential franchise brands.We're an experienced team of franchise development experts who understand what it takes to take a thriving, proven business -- whether that's be a food establishment with passionate customers, an innovative fitness concept, or ahighly profitable home services offering -- and scale it nationally (and even internationally) to hundreds of locations via franchising. | $1.2M | Seed | Oct 24, 2019 |  |

2 of 2 investments shown.

## Co-investors
- [500 TukTuks](https://shizune.co/investors/profile/500-tuktuks) — VC Fund, 1 deal together
- [Humble Ventures](https://shizune.co/investors/profile/humble-ventures) — VC Fund, 1 deal together
- [Orvel Ventures](https://shizune.co/investors/profile/orvel-ventures) — VC Fund, 1 deal together
- [Wavemaker Ventures](https://shizune.co/investors/profile/wavemaker-partners) — VC Fund, 1 deal together

## Similar investors

### Similar industry
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Breakthrough Energy Ventures](https://shizune.co/investors/profile/breakthrough-energy-ventures) — VC Fund
- [Shell Ventures](https://shizune.co/investors/profile/shell-technology-ventures) — VC Fund

### 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

### Similar country
- [SBK](https://shizune.co/investors/profile/sbk-tech-ventures) — VC Fund
- [Orbit Ventures](https://shizune.co/investors/profile/orbit-ventures) — VC Fund
- [Bangladesh Angels](https://shizune.co/investors/profile/bangladesh-angels) — VC Fund

## Featured in investor lists
- [Clean Energy Investors in Bangladesh](https://shizune.co/investors/clean-energy-investors-bangladesh)
- [Climate Investors in Bangladesh](https://shizune.co/investors/climate-investors-bangladesh)
- [Energy Investors in Bangladesh](https://shizune.co/investors/energy-investors-bangladesh)
- [Sustainability Investors in Bangladesh](https://shizune.co/investors/sustainability-investors-bangladesh)
- [Sustainability Angel Investors in Bangladesh](https://shizune.co/investors/sustainability-angel-investors-bangladesh)
- [Impact Investors in Bangladesh](https://shizune.co/investors/impact-investors-bangladesh)

## FAQ

### What does Brett Barna invest in?

Brett Barna invests primarily in Consulting, Clean Energy and Renewable Energy startups, most often at Seed stage. Most of the 2 investments tracked by Shizune back companies in Bangladesh. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Brett Barna's check size?

Brett Barna typically joins rounds of $1.2M–$2.5M 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 Brett Barna participates in.

### When did Brett Barna last invest?

The most recent investment recorded for Brett Barna closed in Nov 2023. Shizune tracks 2 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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