DZP Technologies Ltd ;Cambridge

e-Luminate Foundation ;Cambridge

Earthcool ;Stansted Abbots

eco-procure ;Cambridge

ecoConnect CIC ;London

EcoCooling ;Bury St Edmunds

EcoMachines Incubator ;London

Econergy Europe ;Easton

EcoTechnilin ;Kimbolton

Educe ltd ;Cambridge

Eight19 Ltd ;Cambridge

Emblem Ventures ;London

Energian UK ;London

Energy Canvas ;London

Energy Communications ;Cambridge

Energy Innovation Centre ;Ellesmere Port

EnergyPro Ltd ;London

Enval Ltd ;Luton

Environmental Communications Consultants ;Basildon

Epicam Ltd. ;Cambridge

Ethicom ;Norwich

eTRV ;Luton

EValu8 Transport Innovations Ltd ;Hatfield

Evance Wind Turbines Limited ;Loughborough

Eversheds ;Cambridge

Evonet ;Cambridge

Exemplas Holdings Ltd ;Welwyn Garden City

Extremis Technology Ltd ;Lowestoft

Farm Renewables Ltd ;Lavenham

Fauna & Flora International ;Cambridge

FEV UK Ltd. ;Cambridge

First Ascent ;Cambridge

First Thumb ;Gamlingay

Flexisolar ;Huntingdon

Forest Builder (UK) Ltd ;Woolacombe

Foster Renewable Energies Ltd ;Wisbech

Fraunhofer MOEZ ;Leipzig

Fuel Management Technologies Ltd ;Huntingdon

Future Business ;Cambridge

Futureneering Ltd ;Cambridge

Gillamor Stephens ;Beaconsfield

Granta Park ;Cambridge

Grass Door Limited ;Cambridge

Graveley Associates ;Cambridge

Green Energy Options ;Cambridge

Green Hat Trading Ltd ;CAMBRIDGE

Green Heat Ltd ;Cambridge

Green Running ;London

Green World Initiative ;Woodditton

Green-Tide Turbines ;Cambridge

GreenAir Cars ;Stansted

Greenfield Innovations ;thorney

Greenright Homes ;Stowmarket

H2GO Power Ltd ;Cambridge

Haverhill Research Park ;London

Hewitsons ;Cambridge

Highcrest Global Developments Ltd ;White Waltham

HMN Colmworth Ltd ;London

Holdsworth Associates ;Swavesey