Advent Solar | www.adventsolar.com
Advanced photovoltaic (PV) cells designed to reduce the cost of solar energy to a level that makes it cost competitive with centrally generated power.

   
 

Altela | www.altelainc.com
Water remediation technology designed to dramatically reduce the cost of treating contaminated water produced by the oil, natural gas, mineral and power industries.

   
 

Atraverda | www.atraverda.com
Conductive ceramic that enables the production of bipolar batteries that are smaller, lighter and have enhanced electrical performance over conventional technologies.

   
 

CalStar Products | www.calstarproducts.com
CalStar Products, Inc. is defining the next generation of brick and other low energy building products. The company develops, manufactures and sells low-energy, low CO2 green building products for LEED commercial exteriors and hardscapes.

   
 

Catalytic Solutions (LSE: CTS.L) | www.catsolns.com
Nano-catalyst application technologies that enable production of cheaper, better catalytic converters.

   
 

Catch the Wind (TSX: CTW.S-V) | www.catchthewindinc.com
Wind sensor technology that increases the energy output of wind turbines, while reducing maintenance costs.

   
 

CleanAir Power(LSE: CAP.L) | www.cleanairpower.com
Alternative fuel systems that allow diesel engines to run on natural gas or diesel and provides significant fuel savings and enhanced environmental compliance.

     
  CoaLogix | www.coalogix.com
Clean coal technology and services provider focused on improving the environmental footprint and efficiency of coal-fired generation plants.
   
 

Comverge(NASDAQ: COMV) | www.comverge.com
Managed service provider of power plant-scale demand response solutions for utilities trying to reduce the expense of satisfying peak power requirements.

   
 

CURRENT Group | www.currentgrid.com
Managed service provider of power line carrier networks for utility operators and residential broadband customers that delivers lowest cost network access.

   
 

ENBALA | www.enbala.com
The ENBALA Power Network pays large industrial, commercial and municipal electricity users for contributing the inherent flexibility in how their electrical equipment uses power to provide system balance and quality services to the regional electricity system.

   
 

FilterBoxx | www.filterboxx.com
FilterBoxx is a leading provider of mission critical potable water, wastewater, and process water treatment equipment and services to the oil and gas industry.

   
 

IOSIL Energy | www.iosil-energy.com
High-tech startup focused on developing disruptive technologies that produce and recycle polysilicon for solar cell manufacturers.

   
 

The NanoSteel Company | www.nanosteelco.com
Super-hard steel alloys for more cost-effective welding, hardbanding and coatings in energy, power and industrial industries.

   
 

OwnEnergy | www.ownenergy.net
Wind energy developer focused on the underserved, mid-sized and “locally-owned” wind development segment.

   
 

PCN Technology | www.pcntechnology.com
PCN designs, develops and manufactures embedded smart grid technology systems that control, communicate & network Energy and IT data on the physical energy grids of products and infrastructure.

     
 

Serious Energy | www.seriousenergy.com
Develops and manufactures sustainable green building materials that save energy, save money, improve comfort and aggressively address climate change.

     
 

Tangent Energy | www.tangentenergy.com
Developer of turnkey, renewable energy generation solutions for commercial and industrial customers.

 
 
   
 
 

Arbinet (NASDAQ: ARBX)
Avista Advantage (acquired)
CableMatrix (acquired)
Capstone Turbine (NASDAQ: CPST)
Coastal Security Systems (acquired)
Enerwise Global Technologies (acquired)
Extant (acquired)
Franklin Fuel Cells (acquired)
FuelQuest (acquired)
Intellon (NASDAQ: ITLN) (acquired)
Orcom Solutions (acquired)
Pac-West Telecomm (NASDAQ: PACW)
Transportation.com (acquired)
VerticalNet (NASDAQ: VERT)