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.
- Total investments:
- 103
- Last investment:
- Lead investor:
- 22%
- Fund size:
- $450M
- Last fund:
Last updated:
For AI agents: llms.txt
Industries RockPort Capital invests in
Stages RockPort Capital invests in
Countries RockPort Capital invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
| See all 10 contacts → | |||
Round size
- Series A
- $4M–$14M
- Series B
- $6.5M–$30M
- Series C
- $10M–$32M
Investment Focus
Industry
- Energy 16 (16%)
- Manufacturing 14 (14%)
- Renewable Energy 9 (9%)
- Software 8 (8%)
- Solar 7 (7%)
Stage
- Series C 23 (22%)
- Series B 22 (21%)
- Series A 14 (14%)
- Funding Round 12 (12%)
- Series D 11 (11%)
Country
- United States 41 (40%)
- Canada 2 (2%)
- Norway 1 (1%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Alexander Hap Ellis III
General Partner
|
General Partner | Total investments: 7 | Find email | |
David J. Prend
Co-Founder and General Partner
|
Co-Founder and General Partner | Total investments: 15 | Find email | |
Diane Yung
Partner & CFO
|
Partner & CFO | Total investments: 0 | Find email | |
Janet James
Partner
|
Partner | Total investments: 0 | Find email | |
Stoddard M. Wilson
General Partner
|
General Partner | Total investments: 19 | Find email | |
| See all 10 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
NeoPhotonics
|
NeoPhotonics offers a complete line of both active and passive optical components for every network market segment: FTTH/Access, Datacom, Storage Area Networks, Metro and Long Haul networks. NeoPhotonics' transceivers are compliant with industry standard MSAs, are available in GBIC, SFF, SFP, XFP and other configurations, and serve avariety of reaches, applications and data-rates from 155MBps to 10GBps. NeoPhotonics' advanced silica Planar Lightwave Circuit (PLC) integrated optical modules and subsystems are critical parts in access FTTH networks and in metro and long-haul DWDM networks. For FTTH, NeoPhotonics manufactures integrated splitters in high volume and FTTH BiDi and TriPlexer transceivers, Other products include AWGs, Athermal AWGs, VOA Multiplexers, EDFAs and ROADM Modules. NeoPhotonics' manufactures MEMS-based Variable Optical Attenuators and Dynamic Channel Equalizers | Post-IPO Equity / Jun 21, 2023 | |
Qnovo
|
Qnovo is redefining the foundation of mobility and technology for a more resilient and mobile future—the lithium-ion battery. Since 2010, Qnovo has enabled the electrification revolution with its intelligent battery management software and predictive analytics that improves the performance of electric vehicles, energy storage systems, and consumerdevices with enhanced health and safety. Qnovo is working with the world’s top automotive OEMs, holds over 50 patents in the space, and the first generation of Qnovo technology is on more than 150 million smartphones worldwide. The company is headquartered in Milpitas, California. Its investors include BorgWarner, OGCI Climate Investments, Constellation Technology Ventures, BlueRun Ventures, U.S. Venture Partners and RockPort Capital. Visit www.qnovo.com. | $24M / Series C / Jan 11, 2022 | |
Ratio.City
|
They help real estate professionals strategically identify and efficiently evaluate urban sites to unlock their full development potential. | Seed / Sep 23, 2020 | |
NewLeaf Symbiotics
|
NewLeaf Symbiotics develops and commercializes the bacteria found in Pink Pigmented Facultative Methylotrophs. NewLeaf Symbiotics has also filed its own related patents and is actively developing new technologies related to PPFMs. It is engaged in laboratory, greenhouse, and field product trials and expects to commercialize and license productsbeginning in 2014. | $20M / Series D / Feb 24, 2020 | |
|
NewLeaf Symbiotics
|
NewLeaf Symbiotics develops and commercializes the bacteria found in Pink Pigmented Facultative Methylotrophs. NewLeaf Symbiotics has also filed its own related patents and is actively developing new technologies related to PPFMs. It is engaged in laboratory, greenhouse, and field product trials and expects to commercialize and license productsbeginning in 2014. | $20M / Series D / Feb 24, 2020 | |
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. | $29.8M / Series D / Oct 26, 2017 | |
Honest Buildings
|
Honest Buildings is an integrated, data-driven project management and procurement platform purpose-built for commercial real estate owners and managers. Its products are designed to automate new construction and building improvement processes, these companies are unlocking value in data that previously sat unrealized in endless, complicatedspreadsheets. Companies like Brookfield, Beacon Capital Partners, Invesco, The JBG Companies, SL Green, Parkway Properties, and Rudin Management use Honest Buildings to streamline project management processes, increase revenue through faster project delivery, reduce project costs and increase efficiencies on projects portfolio-wide. | $13M / Series B / Oct 11, 2017 | |
|
NewLeaf Symbiotics
|
NewLeaf Symbiotics develops and commercializes the bacteria found in Pink Pigmented Facultative Methylotrophs. NewLeaf Symbiotics has also filed its own related patents and is actively developing new technologies related to PPFMs. It is engaged in laboratory, greenhouse, and field product trials and expects to commercialize and license productsbeginning in 2014. | $30M / Series C / Jul 10, 2017 | |
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 | |
Renovate America
|
Renovate America provides financing solutions for homes and communities in the areas of energy and water in the United States. It aims to lead the way in making homes and communities more energy and water efficient. The company offers HERO Program, a financing solution made possible by the Property Assessed Clean Energy legislation. It partnerswith cities and counties to implement low-risk, scalable programs that deliver multiple benefits, including energy savings, lower utility bills, reduced emissions, new jobs, and local economic stimulus. Its in-house development team creates custom tools to support all users of its product, from property owners and contractors to municipal leaders. | $90M / Private Equity / Oct 01, 2015 | |
| See all 103 investments → | |||
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FAQ
What does RockPort Capital invest in?
RockPort Capital invests primarily in Energy, Manufacturing and Renewable Energy startups, most often at Series C and Series B stage. Most of the 103 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 RockPort Capital's check size?
RockPort Capital typically joins rounds of $4M–$14M at Series A, $6.5M–$30M at Series B and $10M–$32M at Series C. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds RockPort Capital participates in.
How do I contact RockPort Capital?
Public channels for RockPort Capital include LinkedIn, X (Twitter) 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 RockPort Capital?
The team at RockPort Capital includes Alexander Hap Ellis III (General Partner), David J. Prend (Co-Founder and General Partner) and Diane Yung (Partner & CFO), 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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