# Peter Yolles

> Peter Yolles is a seed investor at Echo River Capital backing Water, Solar and Energy. See 4 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Echo River Capital](https://shizune.co/investors/profile/echo-river-capital)
- Location: San Francisco Bay Area, United States
- Total investments: 4
- Last investment: Jul 2024
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/yolles
- X (Twitter): http://twitter.com/yolles
- Website: http://www.echorivercap.com

Peter Yolles is a seed investor at Echo River Capital in San Francisco Bay Area focused on Water and Solar. Peter Yolles

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $2.3M–$3.3M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Water | 3 | 75% |
| Solar | 1 | 25% |
| Energy | 1 | 25% |
| CleanTech | 1 | 25% |
| Nanotechnology | 1 | 25% |

11 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 2 | 50% |
| Pre-Seed | 1 | 25% |
| Series A | 1 | 25% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 3 | 75% |
| India | 1 | 25% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Active Membranes | Active Membranes is innovating the future of fresh water by redefining the technology. | $2.3M | Seed | Jul 09, 2024 |  |
| Aclarity | Aclarity is a VC-backed cleantech startup developing and selling water treatment systems to clean the world's water and wastewater. | $3.3M | Seed | Apr 07, 2022 |  |
| Uravu Labs | Uravu plans to develop fresh ideas for making human life sustainable and our communities responsive and resilient. In order to build a sustainable and better future for everyone, the company believes that the "water" industry is ripe for innovation and needs ground-breaking innovations.High-quality drinking water may be produced usingUravu's award-winning, 100% renewable water technology, which uses the atmosphere's limitless moisture and solely renewable energy.Uravu was established in 2017 in Bangalore, Karnataka. |  | Pre-Seed | Dec 09, 2021 |  |
| Epic Cleantec | Epic Cleantec ("Epic") is a full-service water reuse firm based in San Francisco, CA. We provide turnkey wastewater treatment and reuse systems for customers, creating a one-stop-shop for design, engineering, permitting, installation, and ongoing operations. Our team has decades of experience across the wastewater and built environmentvalue chain, with expertise in wastewater and solids handling technology, project financing, policy, and operations. Epic is decentralizing wastewater treatment and reuse into individual buildings or groups of buildings, by converting building wastewater into treated water for non-potable applications like toilet flushing, irrigation, and cooling towers, as well as natural soil amendments that can be used to grow crops, enhance gardens, and beautify green spaces. The Epic system can help a project reduce its water demand by up to 95%, which saves owners hundreds of thousands of dollars annually on their water and sewer bills. Born out of initial work with the Bill and Melinda Gates Foundation's "Reinvent the Toilet Challenge," Epic reduces the cost and complexity of onsite wastewater treatment and reuse, lowering costs for building owners, easing strain on municipal utilities, and strengthening sustainability and resiliency efforts. Winner of the United Nation's 2018 Global Climate Action Summit Innovation Showcase and a Fast Company 2020 World Changing Ideas Award honoree, Epic is now participating in the highly competitive Imagine H2O accelerator, the world's top water-focused startup program. | $9.4M | Series A | Dec 07, 2021 |  |

4 of 4 investments shown.

## Co-investors
- [Speciale Invest](https://shizune.co/investors/profile/speciale-invest) — VC Fund, 2 deals together
- [Burnt Island Ventures](https://shizune.co/investors/profile/burnt-island-ventures) — VC Fund, 1 deal together
- [DCVC](https://shizune.co/investors/profile/data-collective) — VC Fund, 1 deal together
- [J-Impact](https://shizune.co/investors/profile/j-impact) — VC Fund, 1 deal together
- [J-Ventures](https://shizune.co/investors/profile/j-ventures-f370) — VC Fund, 1 deal together
- [Maroon Venture Partners Fund](https://shizune.co/investors/profile/maroon-venture-partners-fund) — VC Fund, 1 deal together

## About Echo River Capital

VC Fund · Belvedere Tiburon, United States

Echo River Capital invests globally in early stage water technology companies to Digitize, Decarbonize and Decentralize the water cycle. Our vision for the future is living in freshwater harmony with nature, made easier through technology. Echo River is among the few investors with a narrow specialty in smart water technology solving global waterchallenges for human health, environment, and climate resilience.

1 contacts available at Echo River Capital.

| Name | Title | Profile |
| --- | --- | --- |
| Peter Yolles | Founder and General Partner | https://shizune.co/investors/profile/peter-yolles |

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## Featured in investor lists
- [CleanTech Angel Investors in United States](https://shizune.co/investors/cleantech-angel-investors-united-states)
- [Renewable Energy Angel Investors in India](https://shizune.co/investors/renewable-energy-angel-investors-india)

## FAQ

### What does Peter Yolles invest in?

Peter Yolles invests primarily in Water, Solar and Energy startups, most often at Seed and Pre-Seed stage. Most of the 4 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Peter Yolles's check size?

Peter Yolles typically joins rounds of $2.3M–$3.3M 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 Peter Yolles participates in.

### When did Peter Yolles last invest?

The most recent investment recorded for Peter Yolles closed in Jul 2024. Shizune tracks 4 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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