# DBL Partners

> DBL Partners is a VC fund in San Francisco backing Software and Manufacturing. See 86 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: San Francisco, United States
- Total investments: 86
- Last investment: Oct 2025
- Lead investor: 26%
- Fund size: $400M
- Last fund: Jun 2015
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/dbl-partners/
- Website: http://www.dblinvestors.com

DBL Partners is an investment venture focused on companies that deliver high venture capital returns and economic benefits. DBL Partners uses venture capital to accelerate innovation in a way that positively affects an organization’s social impact, as well as its financial success. They believe these two drivers –positive social change and ahealthy financial performance– are inherently connected.DBL invests in and helps nurture outstanding entrepreneurs and companies in Cleantech, Information Technology, Sustainable Products and Services, and Healthcare.

## Contacts

5 contacts available for DBL Partners. Shizune tracks 11 team members at DBL Partners. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/dbl-investors?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 10 | 12% |
| Manufacturing | 10 | 12% |
| Renewable Energy | 9 | 10% |
| Energy | 7 | 8% |
| Sustainability | 5 | 6% |

116 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series C | 16 | 19% |
| Series A | 14 | 16% |
| Series B | 13 | 15% |
| Series D | 11 | 13% |
| Series E | 6 | 7% |

13 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 44 | 51% |
| Pakistan | 1 | 1% |
| The Netherlands | 1 | 1% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Carol Wong | Chief Administrative Officer | 0 | https://shizune.co/investors/profile/carol-wong |
| Carol Wong | Chief Administrative Officer | 0 | https://shizune.co/investors/profile/carol-wong-01f5 |
| Ira Ehrenpreis | Founder and Managing Partner | 14 | https://shizune.co/investors/profile/ira-ehrenpreis |
| Jake Harris | Principal | 1 | https://shizune.co/investors/profile/jake-harris-65ee |
| Lisa Hager­man | Director of Programs | 0 | https://shizune.co/investors/profile/lisa-hagerman |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Agtonomy | Agtonomy is a hybrid autonomy and tele-assist platform for agriculture vehicles. | $18M | Series B | Oct 28, 2025 |  |
| Spatial | OUR MISSION Ideas take on new life in three dimensions, offering more depth, clarity, and collaboration. At Spatial, we’re reimagining how teams design, interact, and solve problems by unlocking the power of spatial computing. Frustrated with the limitations of traditional tools, we set out to create something better—something that makescollaboration feel intuitive and immersive HOW WE STARTED What began as a simple experiment in spatial audio has grown into a robust platform for designing, sharing, and experiencing 3D environments in real time. Spatial isn’t just another tool — it's a whole new way to bring ideas to life TODAY Today, forward-thinking teams—from design studios to automotive innovators—use Spatial to transform their ideas into immersive experiences. We help them shape the future, one dimension at a timeSpatial's team and demo location is located in Scottsdale, Arizona. Led by experienced leaders from Apple, Nest & PlutoTV and backed by DBL Partners, BITKRAFT Ventures, National Geographic Society, The Kraft Group, Marquee Sports Holdings, WS Development and others. |  | Venture - Series Unknown | Aug 05, 2025 |  |
| Fiber Global | Fiber Global creates building materials from reclaimed waste, focusing on sustainable, upcycled products for construction. | $20M | Series A | Jun 17, 2025 |  |
| Chestnut Carbon | Chestnut Carbon develops afforestation projects to generate carbon removal credits and support net-zero goals. The company plants and maintains forestland, ensuring long-term carbon sequestration through conservation easements. Using proprietary technology and data, Chestnut Carbon identifies optimal land parcels, accelerates carbon measurement,and reduces monitoring costs. The company partners with landowners, farmers, and community organizations to enhance biodiversity, restore land, and create economic opportunities. Chestnut Carbon’s projects adhere to the Gold Standard® for rigorous verification, ensuring the credibility of its carbon credits while contributing to environmental restoration and sustainable development. | $160M | Series B | Feb 12, 2025 |  |
| Rain Industries | Every wildfire starts small. Rain contains wildfires within 10 minutes of ignition with autonomous drones. | $9.7M | Seed | Sep 21, 2023 |  |
| R-Zero | R-Zero offers smart building technology that delivers real-time insights on optimizing indoor spaces to improve workforce productivity, predict real estate needs, and create operational efficiencies, including reducing energy costs. R-Zero’s smart building solutions include IAQ and comfort monitoring, high-efficiency HVAC filtration, spaceutilization sensors, occupancy-based building controls, and real estate performance analytics. R-Zero’s connected platform is easy-to-use, secure, and scalable, enabling owners, operators, and their tenants, to prepare their buildings for tomorrow's challenges. | $105M | Series C | Feb 16, 2023 |  |
| R-Zero | R-Zero offers smart building technology that delivers real-time insights on optimizing indoor spaces to improve workforce productivity, predict real estate needs, and create operational efficiencies, including reducing energy costs. R-Zero’s smart building solutions include IAQ and comfort monitoring, high-efficiency HVAC filtration, spaceutilization sensors, occupancy-based building controls, and real estate performance analytics. R-Zero’s connected platform is easy-to-use, secure, and scalable, enabling owners, operators, and their tenants, to prepare their buildings for tomorrow's challenges. | $105M | Series C | May 26, 2022 |  |
| Airspace | Airspace was created in 2016 to solve the problems that plagued time-critical deliveries. After more than a decade in logistics, Nick Bulcao teamed up with Ryan Rusnak to build the industry’s most technologically advanced platform in order to expedite deliveries, improve accuracy, and provide full transparency for critical shipments.Headquarteredin Carlsbad, California, Airspace has grown to over 200 members and counting. Their reach now extends overseas, where the Airspace B.V. office in Amsterdam supports their rapid international expansion. They serve a growing list of industries that rely on time-critical shipping, including healthcare, aerospace, and manufacturing.Airspace’s technology is revolutionizing the industry by automating a wildly outdated manual process. Proprietary algorithms and machine learning techniques provide instant quotes, optimized routing, and rapid driver dispatch. They are the only logistics company that pairs the most advanced technology with real-time communication on every shipment. | $70M | Series D | May 25, 2022 |  |
| Pallet | Pallet is a social purpose corporation that builds equal opportunity access to housing and employment. Pallet provides portable shelter systems intended to prevent and reduce homelessness. The company's shelter is made from durable aluminum and composite materials, giving customers with high quality, cost-effective, and portable sheltersystems.Pallet is headquartered in Seattle, Washington. | $15M | Series A | Mar 15, 2022 |  |
| Menlo Micro | Menlo Micro is the developer of the Ideal Switch, an electromechanical switch technology used to switch AC/DC and RF. The Ideal Switch can handle high temperatures and high-stress conditions and help in battery management, home automation, and instrumentation that enable clients to work with advanced products and deliver efficient outcomesusing high power.Menlo Micro was founded in 2016 and is headquartered in Irvine, California. | $150M | Series C | Mar 09, 2022 |  |

10 of 86 investments shown.

## Co-investors
- [Sigma Partners](https://shizune.co/investors/profile/sigma-partners) — VC Fund, 6 deals together
- [Canaan Partners](https://shizune.co/investors/profile/canaan-partners) — VC Fund, 5 deals together
- [The Westly Group](https://shizune.co/investors/profile/the-westly-group) — VC Fund, 5 deals together
- [Trident Capital](https://shizune.co/investors/profile/trident-capital) — VC Fund, 5 deals together
- [World Innovation Lab](https://shizune.co/investors/profile/wil) — VC Fund, 5 deals together
- [Aspect Ventures](https://shizune.co/investors/profile/aspect-ventures) — VC Fund, 4 deals together

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## FAQ

### What does DBL Partners invest in?

DBL Partners invests primarily in Software, Manufacturing and Renewable Energy startups, most often at Series C and Series A stage. Most of the 86 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact DBL Partners?

Public channels for DBL Partners include LinkedIn and the website linked on this profile. 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 DBL Partners?

The team at DBL Partners includes Carol Wong (Chief Administrative Officer), Carol Wong (Chief Administrative Officer) and Ira Ehrenpreis (Founder and Managing Partner), among 11 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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