Orbital Marine Power is an innovative engineering company that focuses on the development of tidal energy technology. The company's main offering is a technologically advanced tidal turbine that harnesses tidal and river currents to generate clean, predictable power. This renewable energy solution is primarily targeted at the clean energy sector. Orbital Marine Power was formerly known as Scotrenewables Tidal Power. It was founded in 2002 and is based in Edinburgh, Scotland.

Vortex Hydro Energy is a company focused on the renewable energy sector, specifically hydrokinetic power generation. The company's main product is the VIVACE converter, a device that harnesses the energy of slow-moving river and ocean currents to generate electricity. This technology does not rely on propellers like traditional water turbines, but instead uses the physical phenomenon of vortex induced vibration, where water current flows around cylinders, inducing motion that is then converted into electricity. It is based in Ypsilati, Michigan.

Windsave Ltd., established in 2002, is a dynamic Scottish company within the Renewable Energy sector. The company are focused on developing micro generation solutions for domestic and commercial properties. The Windsave System is a small wind turbine generator system, which uses low wind speeds to create electricity. nnThe Windsave System uses the company's technology, which generates electricity supplementary to the national grid supply, reducing reliance on traditional energy sources; benefiting the environment, and helping to lower domestic electricity bills and CO2 emissions. nnMany people have the desire to protect the environment; the company's challenge from the beginning has been to turn that desire into action. The company's aim is to enable householders, commercial enterprises and local authorities to move from being mere consumers of energy to becoming important contributors to overall energy requirements. nnThe company's technology has been fully and independently tested by the National Engineering Laboratory and is fully accredited by the DTI under the Low Carbon Building Programme (formerly known as The Clear Skies Programme). It is BS and CE approved.

GlobalGreen Energy Corp. is a provider of renewable energy products and services for the private, municipal and governmental sectors. Utilizing the talents and lower manufacturing costs in China to produce high quality, low cost products.

E21 LLC aims to provide Mid-Atlantic businesses with on-site power generation services, allowing companies to take advantage of renewable energy's predictable cost. E21 aims to provide a turn-key solution, with the customer able to acquire an on-site system with no capital costs.

Rentricity is a company focused on regenerative in-conduit hydropower within the clean energy sector. The company offers systems that convert excess water pressure in pipelines into clean electric power, serving as an alternative to traditional pressure reduction valves. Rentricity primarily sells to water operators, including those in the drinking water, agricultural, industrial, and wastewater sectors. It is based in New York, New York.