# David J. Prend

> David J. Prend is a Series C investor at RockPort Capital (Boston) backing Energy and Solar. See 15 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [RockPort Capital](https://shizune.co/investors/profile/rockport-capital-partners)
- Location: Boston, United States
- Total investments: 15
- Last investment: Feb 2016
- Lead investor: 13%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/david-prend-7a8126/

David J. Prend is a Series C investor at RockPort Capital in Boston focused on Energy and Solar. David is Managing General Partner and co-founder of RockPort Capital, a venture capital firm that invests in the areas of energy, mobility, and sustainability. Prior to founding RockPort in 1998, David was a Managing Director at Salomon Brothers, where he headed the Global Energy Investment Banking Group. He also worked at Shearson Lehman, Amocoand Bechtel. David received a BS in Civil Engineering from the University of California at Berkeley and an MBA from Harvard Business School.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Energy | 3 | 20% |
| Solar | 2 | 13% |
| Oil and Gas | 2 | 13% |
| Manufacturing | 2 | 13% |
| Sensor | 1 | 7% |

16 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series C | 3 | 20% |
| Series D | 3 | 20% |
| Series B | 2 | 13% |
| Series E | 2 | 13% |
| Series A | 1 | 7% |

9 stages tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Enlighted | Designed to give you more control over the buildings you manage, increase efficiency and make you smarter about virtually everything in your commercial spaces, Enlighted converts the abstract Internet of Things into something tangible.Enlighted’s mission is to help our customers reach long-range sustainability goals while saving money andincreasing efficiency. Using our first-in-class sensor and analytics platform, we provide smart energy solutions for commercial buildings. Our technology reduces costs and improves the comfort of workspaces and the efficiency of the people who work in them.Our solutions go beyond theory. Customers are saving millions in energy costs - up to 70% in some instances - while making smarter business decisions based on the actionable data we provide. To date, our sensors have been installed in over 70,000 square-feet and are deployed in Fortune 1000 company workplaces, like AT&T and Oracle. | $25M | Series D | Feb 29, 2016 |  |
| InVisage Technologies | InVisage Technologies Inc., a fabless semiconductor company, produces quantum dot-based image sensors. The company's product enables the high resolution images from handheld devices, such as camera phones and PDAs. Its products are used in security and surveillance, automotive imaging, military, and medical imaging applications, as well asmobile phone cameras, Webcams, and digital still cameras. The company was incorporated in 2005 and is based in Menlo Park, California. | $32.5M | Series F | Dec 16, 2014 |  |
| InVisage Technologies | InVisage Technologies Inc., a fabless semiconductor company, produces quantum dot-based image sensors. The company's product enables the high resolution images from handheld devices, such as camera phones and PDAs. Its products are used in security and surveillance, automotive imaging, military, and medical imaging applications, as well asmobile phone cameras, Webcams, and digital still cameras. The company was incorporated in 2005 and is based in Menlo Park, California. | $18M | Series E | Apr 22, 2014 |  |
| Achates Power | Achates Power specializes in the fields of combustion engine development, clean diesel, and 2-stroke oil control management. The company is on a mission to build better, more efficient engines, the company has an experienced staff of engineers and scientists focused on applying their proven technical know-how and expertise, coupled with theindustry's leading-edge testing, simulation, and analysis tools.it was founded in 2004 and headquartered in San Diego, California. | $35.2M | Series C | Oct 09, 2013 |  |
| InVisage Technologies | InVisage Technologies Inc., a fabless semiconductor company, produces quantum dot-based image sensors. The company's product enables the high resolution images from handheld devices, such as camera phones and PDAs. Its products are used in security and surveillance, automotive imaging, military, and medical imaging applications, as well asmobile phone cameras, Webcams, and digital still cameras. The company was incorporated in 2005 and is based in Menlo Park, California. | $27.5M | Series D | Feb 13, 2013 |  |
| GlassPoint Solar | GlassPoint provides solar steam generators to the oil and gas industry for applications such as Enhanced Oil Recovery. It replaces gas-fired steam generation with solar, GlassPoint can reduce EOR gas consumption by up to 80 percent. The company was founded in 2008 and headquartered in Fremont, California. | $26M | Series B | Dec 11, 2012 |  |
| GlassPoint Solar | GlassPoint provides solar steam generators to the oil and gas industry for applications such as Enhanced Oil Recovery. It replaces gas-fired steam generation with solar, GlassPoint can reduce EOR gas consumption by up to 80 percent. The company was founded in 2008 and headquartered in Fremont, California. | $1.2M |  | Oct 01, 2012 |  |
| Aspen Aerogels | Aspen Aerogels provides thermal management and energy conservation insulation solutions for a variety of industries. Their insulation products are up to eight times more effective than traditional insulation materials. Aspen Aerogels' insulation provides maximum thermal performance with minimal weight and thickness for a growing range ofconsumer items, including packaging products and many outdoor gear, apparel, and footwear products. | $10M | Debt Financing | Jun 27, 2012 |  |
| InVisage Technologies | InVisage Technologies Inc., a fabless semiconductor company, produces quantum dot-based image sensors. The company's product enables the high resolution images from handheld devices, such as camera phones and PDAs. Its products are used in security and surveillance, automotive imaging, military, and medical imaging applications, as well asmobile phone cameras, Webcams, and digital still cameras. The company was incorporated in 2005 and is based in Menlo Park, California. | $20M | Series C | Feb 14, 2011 |  |
| Solyndra | Solyndra is a manufacturer of cylindrical panels of CIGS thin-film solar cells based in Fremont, California.Solyndra designs and manufactures photovoltaic systems, comprised of panels and mounting hardware, for the commercial rooftop market. Solyndra employs high volume manufacturing based on proven technologies and processes to meet the needsof the global solar market. Using proprietary cylindrical modules and thin-film technology, Solyndra systems are designed to provide the lowest installed cost per system and the highest solar electrical energy output for typical low slope commercial rooftops. Founded in 2005 and headquartered in Fremont, California, Solyndra operates a state-of-the-art 300,000 square foot fully-automated manufacturing complex. | $175M | Private Equity | Jun 18, 2010 |  |

10 of 15 investments shown.

## Co-investors
- [InterWest Partners](https://shizune.co/investors/profile/interwest-partners) — VC Fund, 4 deals together
- [GGV Capital](https://shizune.co/investors/profile/ggv-capital) — VC Fund, 3 deals together
- [Madrone Capital Partners](https://shizune.co/investors/profile/madrone-capital-partners) — VC Fund, 3 deals together
- [Sequoia Capital](https://shizune.co/investors/profile/sequoia-capital) — VC Fund, 3 deals together
- [Arcapita Ventures](https://shizune.co/investors/profile/arcapita-ventures) — VC Fund, 2 deals together
- [Argonaut Ventures](https://shizune.co/investors/profile/argonaut-ventures) — VC Fund, 2 deals together

## About RockPort Capital

VC Fund · Boston, United States

RockPort Capital is a multi-stage venture capital firm that invests in the areas of alternative and traditional energy, mobility, and sustainability. For more than a decade RockPort has partnered with entrepreneurs to foster growth and create value in a broad range of industrial and consumer facing companies whose technologies and products provideinnovative solutions to significant worldwide markets. RockPort has a collaborative approach to investing, deep domain expertise, and insights into all aspects of energy and cleantech. With offices in Boston and Menlo Park, RockPort is globally recognized as being among the largest and most established energy-focused venture capital firms.

5 contacts available at RockPort Capital.

| Name | Title | Profile |
| --- | --- | --- |
| Alexander Hap Ellis III | General Partner | https://shizune.co/investors/profile/alexander-hap-ellis-iii |
| David J. Prend | Co-Founder and General Partner | https://shizune.co/investors/profile/david-j-prend |
| Diane Yung | Partner & CFO | https://shizune.co/investors/profile/diane-yung |
| Janet James | Partner | https://shizune.co/investors/profile/janet-james |
| Stoddard M. Wilson | General Partner | https://shizune.co/investors/profile/stoddard-m-wilson |

## Similar investors

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- [Sequoia Capital](https://shizune.co/investors/profile/sequoia-capital) — VC Fund
- [New Enterprise Associates](https://shizune.co/investors/profile/new-enterprise-associates) — VC Fund
- [Bessemer Venture Partners](https://shizune.co/investors/profile/bessemer-venture-partners) — VC Fund

## FAQ

### What does David J. Prend invest in?

David J. Prend invests primarily in Energy, Solar and Oil and Gas startups, most often at Series C and Series D stage. Most of the 15 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did David J. Prend last invest?

The most recent investment recorded for David J. Prend closed in Feb 2016. Shizune tracks 15 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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