American Wind Capital

American Wind Capital was formed to purchase long-term cash flows from landowners who receive royalty income from wind and renewable power projects in the U.S.

Community Energy

Community Energy is an REC marketer and utility-scale solar/wind project developer, focused principally in the Northeast, Mid-Atlantic and Midwest.

Environmental Drilling Solutions

Environmental Drilling Solutions provides mobile cuttings drying units, pressure washers, and rig vacuum systems to the oil & gas industry.

Flogistix

Flogistix is an oil & gas production services company that specializes in natural gas and coal bed methane compression systems.

GeoDigital International

GeoDigital International provides airborne inspection and asset management services for the electric utility and oil and gas pipeline sectors.

groSolar

groSolar is a commercial and utility scale solar engineering, procurement and construction firm, with projects nationwide.

GSE Systems, Inc. (NASDAQ – GVP)

GSE Systems provides a wide range of simulation and training solutions to the global energy (nuclear and non-nuclear) industry.

LedEngin, Inc.

LED Engin develops, manufactures, and sells advanced LED emitters, optics components and light source modules in a unique, high-lumen density, compact, multi-die package that enable solid-state lighting solutions for a wide range of applications.

Lehigh Technologies

Lehigh Technologies produces micronized rubber powders from
end-of-life tire materials and other post-industrial rubber.

Living Earth

Living Earth recycles organic material in twenty facilities across Texas.

Managed Pressure Operations

Managed Pressure Operations International is an oilfield services company that provides continuous circulation and managed pressuredrilling systems to oil & gas operators around the world.

Penn Power Group

Penn Power Group offers a full range of products and services that are used in the on-highway transportation, off-highway construction and industrial markets, transport refrigeration, coach and bus climate control, power generation and renewable power generation markets.

Renewable Energy Group (NASDAQ - REGI)

Renewable Energy Group is the leading U.S. producer and marketer of biodiesel.

TPI Composites

TPI Composites manufactures large composite structures for the wind energy, transportation, and military vehicle markets.

TAS Energy

TAS Energy (TAS) is a leading manufacturer of packaged cooling and energy systems for multiple end-markets, including: Power Generation, Commercial & Industrial Cooling, Advanced Heat Recovery (including Geothermal), and Data Centers.

Viking Oil Tools

Viking Oil Tools provides oil and gas producers with high quality fishing, thru tubing, and rental equipment and services.