# Nancy Floyd

> Nancy Floyd is a Series B investor at Nth Power (San Francisco) backing Energy and Chemical. See 5 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Nth Power](https://shizune.co/investors/profile/nth-power)
- Location: San Francisco, United States
- Total investments: 5
- Last investment: Jul 2007
- Lead investor: 20%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/nafloyd
- Facebook: http://www.facebook.com/nancy.floyd.771

Nancy Floyd is a Series B investor at Nth Power in San Francisco focused on Energy and Chemical. Nancy Floyd is Founder and Managing Director of Nth Power, the venture capital firm that helped pioneer investments in new energy technologies. Based in San Francisco, Nth Power has $420M under management and has invested in 57 companies- many of them market leaders in renewable energy, energy efficiency, smart grid, clean transportation andgreen buildings.Ms. Floyd has led Nth Power’s investments in Silicon Energy (NASDAQ: ITRI), Smartsynch (NASDAQ: ITRI), Serveron (BPL Global), SpectraSensors, Propel Biofuels and Thetus. In addition to these Boards, Ms. Floyd has been an advisor to the National Renewable Energy Lab and has served on the Boards of the American Council on Renewable Energy, the Center for Resource Solutions, Sustainable Asset Management in Zurich, Switzerland, and the Portland Family of Funds, a community investment bank. She was elected in 2011 to the Board of WGL Holdings (NYSE: WGL), based in Washington, DC. From 2008-2010, she was a Commissioner of the Economic Development Commission in the State of Oregon and, from 1998-2008, served as a Trustee at Franklin & Marshall College, in Lancaster, PA.Ms. Floyd holds a masters degree in political science from Rutgers University (1977), where she was an Eagleton Fellow. She received a bachelor’s degree in political science from Franklin and Marshall College (1976).

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Energy | 2 | 40% |
| Chemical | 1 | 20% |
| Software | 1 | 20% |
| Wireless | 1 | 20% |
| Oil and Gas | 1 | 20% |

9 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 2 | 40% |
| Series C | 2 | 40% |
| Funding Round | 1 | 20% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| SpectraSensors | SpectraSensors, Inc. manufactures and supplies precision optical laser-based gas analyzers for the energy and petrochemical industries. Its products include air monitoring, moisture, dew point, hydrogen sulfide, H2S, dual channel, and atmospheric and portable gas analyzers for natural gas pipelines and processors, petrochemical refineries, andchemical companies. The company's solutions measure and monitor gas and petrochemical concentrations in a variety of applications, such as environmental, energy, water, and chemical process monitoring. Its gas analyzers measure moisture, carbon dioxide, hydrogen sulfide, hydrogen chloride, methane, ammonia, and ethylene oxide. The company also provides communication software systems, such as SCADA2000 for data acquisition, control, and monitoring of custody transfer metering; and CMC, a communications management center for automated and on-demand polling of field monitoring devices. SpectraSensors offers its products through an international distribution network and installation base in North America, Europe, the Pacific Rim, Australia, and Asia. The company was incorporated in 1998 and is headquartered in Houston, Texas with engineering, design, and manufacturing operations in Rancho Cucamonga, California. SpectraSensors was acquired in 2012 by Swiss company Endress+Hauser, a global leader in measurement instrumentation, services and solutions for industrial process engineering. | $14M | Series C | Jul 10, 2007 |  |
| SmartSynch | SmartSynch is a Smart Grid Technology Company enabling utilities to communicate with any device on the grid. The company's clean-tech innovations in the two-way delivery of real-time energy usage data over public wireless networks (AT&T, Rogers, T-Mobile, etc.), in lieu of private network build-outs, have simplified SmartMeter deploymentsfor over 100 major North American electric utilities.Smart Grid InfrastructureA smart grid infrastructure is the sum of services, devices and software necessary to add a layer of intelligence onto today’s 20th-century electricity grid such that every point on that grid can talk to every other point and decisions are made either by devices or human beings to fully optimize the process by which electricity is generated and delivered to customers.A smart grid infrastructure can spot and stop energy “leaks,” optimize efficiency through better power factors and provide feedback loops that provide the right price signals to normalize energy loads during peak use. According to the Pacific Northwest Laboratory in partnership with the Department of Energy, the total potential benefit of implementing smart grid technologies over the next 20 years is conservatively estimated to have a present value of $75 billion.VisionSmartSynch creates extraordinary value for our customers by providing innovative Smart Grid Infrastructure solutions that leverage public wireless networks. | $12M | Series C | Oct 17, 2005 |  |
| SpectraSensors | SpectraSensors, Inc. manufactures and supplies precision optical laser-based gas analyzers for the energy and petrochemical industries. Its products include air monitoring, moisture, dew point, hydrogen sulfide, H2S, dual channel, and atmospheric and portable gas analyzers for natural gas pipelines and processors, petrochemical refineries, andchemical companies. The company's solutions measure and monitor gas and petrochemical concentrations in a variety of applications, such as environmental, energy, water, and chemical process monitoring. Its gas analyzers measure moisture, carbon dioxide, hydrogen sulfide, hydrogen chloride, methane, ammonia, and ethylene oxide. The company also provides communication software systems, such as SCADA2000 for data acquisition, control, and monitoring of custody transfer metering; and CMC, a communications management center for automated and on-demand polling of field monitoring devices. SpectraSensors offers its products through an international distribution network and installation base in North America, Europe, the Pacific Rim, Australia, and Asia. The company was incorporated in 1998 and is headquartered in Houston, Texas with engineering, design, and manufacturing operations in Rancho Cucamonga, California. SpectraSensors was acquired in 2012 by Swiss company Endress+Hauser, a global leader in measurement instrumentation, services and solutions for industrial process engineering. | $6M | Series B | Mar 01, 2005 |  |
| SmartSynch | SmartSynch is a Smart Grid Technology Company enabling utilities to communicate with any device on the grid. The company's clean-tech innovations in the two-way delivery of real-time energy usage data over public wireless networks (AT&T, Rogers, T-Mobile, etc.), in lieu of private network build-outs, have simplified SmartMeter deploymentsfor over 100 major North American electric utilities.Smart Grid InfrastructureA smart grid infrastructure is the sum of services, devices and software necessary to add a layer of intelligence onto today’s 20th-century electricity grid such that every point on that grid can talk to every other point and decisions are made either by devices or human beings to fully optimize the process by which electricity is generated and delivered to customers.A smart grid infrastructure can spot and stop energy “leaks,” optimize efficiency through better power factors and provide feedback loops that provide the right price signals to normalize energy loads during peak use. According to the Pacific Northwest Laboratory in partnership with the Department of Energy, the total potential benefit of implementing smart grid technologies over the next 20 years is conservatively estimated to have a present value of $75 billion.VisionSmartSynch creates extraordinary value for our customers by providing innovative Smart Grid Infrastructure solutions that leverage public wireless networks. |  |  | Jul 01, 2003 |  |
| SmartSynch | SmartSynch is a Smart Grid Technology Company enabling utilities to communicate with any device on the grid. The company's clean-tech innovations in the two-way delivery of real-time energy usage data over public wireless networks (AT&T, Rogers, T-Mobile, etc.), in lieu of private network build-outs, have simplified SmartMeter deploymentsfor over 100 major North American electric utilities.Smart Grid InfrastructureA smart grid infrastructure is the sum of services, devices and software necessary to add a layer of intelligence onto today’s 20th-century electricity grid such that every point on that grid can talk to every other point and decisions are made either by devices or human beings to fully optimize the process by which electricity is generated and delivered to customers.A smart grid infrastructure can spot and stop energy “leaks,” optimize efficiency through better power factors and provide feedback loops that provide the right price signals to normalize energy loads during peak use. According to the Pacific Northwest Laboratory in partnership with the Department of Energy, the total potential benefit of implementing smart grid technologies over the next 20 years is conservatively estimated to have a present value of $75 billion.VisionSmartSynch creates extraordinary value for our customers by providing innovative Smart Grid Infrastructure solutions that leverage public wireless networks. | $23M | Series B | Apr 17, 2001 |  |

5 of 5 investments shown.

## Co-investors
- [Kinetic Ventures](https://shizune.co/investors/profile/kinetic-ventures) — VC Fund, 3 deals together
- [American River Ventures](https://shizune.co/investors/profile/american-river-ventures) — VC Fund, 2 deals together
- [Blueprint Ventures](https://shizune.co/investors/profile/blueprint-ventures) — VC Fund, 2 deals together
- [JPMorgan Partners](https://shizune.co/investors/profile/j-p-morgan-partners) — VC Fund, 2 deals together
- [Chevron Technology Ventures](https://shizune.co/investors/profile/chevron-technology-ventures) — VC Fund, 1 deal together
- [J.P. Morgan Securities Inc.](https://shizune.co/investors/profile/j-p-morgan-securities-inc) — VC Fund, 1 deal together

## About Nth Power

VC Fund · San Francisco, United States

Nth Power is a venture capital firm based in San Francisco and is the first and most experienced venture capital firm funding promising startup companies in the growing sector of energy technology, materials and other related businesses. With $420 million under management in four funds and an investment record that begins in 1997, Nth Power iswidely known and well regarded as the driving force behind many of the most successful energy technology companies.The firm’s leading history in energy related venture capital is the result of a deep network of energy entrepreneurs, universities and research institutions, unmatched corporate relationships and the backing of institutional capital. And because the firm is located in the center of much of where energy is innovating, Nth Power plays a visionary role in pushing forward the businesses that are addressing some of the worlds most pressing energy challenges.

3 contacts available at Nth Power.

| Name | Title | Profile |
| --- | --- | --- |
| Nancy Floyd | Founder & Managing Director | https://shizune.co/investors/profile/nancy-floyd |
| Bryant J. Tong | Managing Director | https://shizune.co/investors/profile/bryant-j-tong |
| Elaine Erickson | CFO | https://shizune.co/investors/profile/elaine-erickson |

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## FAQ

### What does Nancy Floyd invest in?

Nancy Floyd invests primarily in Energy, Chemical and Software startups, most often at Series B and Series C stage. Most of the 5 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 Nancy Floyd last invest?

The most recent investment recorded for Nancy Floyd closed in Jul 2007. Shizune tracks 5 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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