| E energija group | Vilniaus, Vilnius District | Visit site |
| E&J | New York, New York | Visit site |
| E-Dina WaterLight | Bogotá, Bogotá | Visit site |
| E-One Moli Energy | 臺北市, Taipei | Visit site |
| E-Parktower | Haltern am See, North Rhine-Westphalia | Visit site |
| E-T-A France | Île-de-France | Visit site |
| E-magy | Broek op Langedijk, North Holland | Visit site |
| E.T.T. – Electricité Travaux Techniques | Île-de-France | Visit site |
| E.nova Enerxía | Santiago de Compostela, A Coruña | Visit site |
| E14 Fund | Cambridge, Massachusetts | Visit site |
| E3D | Mungia, Biscay | Visit site |
| EA Elektro-Automatik | A Tektronix Company | Viersen, North Rhine-Westphalia | Visit site |
| EAB Elektroanlagenbau GmbH Rhein/Main | Member of Elevion Group | Dietzenbach, Hesse | Visit site |
| EAE | Ataşehir, Istanbul | Visit site |
| EBC Inc. | L'Ancienne-Lorette, Quebec | Visit site |
| EBI Electric | Saint-Georges, Quebec | Visit site |
| EBV Elektronik | Poing, Bavaria | Visit site |
| EC Focus | Sydney, New South Wales | Visit site |
| ECAMI S.A. | Managua, Managua | Visit site |
| ECC | Burlingame, California | Visit site |
| ECG Electrical Pty Ltd | Canberra, Australian Capital Territory | Visit site |
| ECG Engineering Consultants Group S.A. | Nasr, Cairo | Visit site |
| ECO Providers | Clitheroe, England | Visit site |
| ECO SYSTEM | Gliwice, Silesian Voivodeship | Visit site |
| ECO trend s.r.o. | Praha, Prague | Visit site |
| ECOGY srl/gmbh | Lana, South Tyrol | Visit site |
| ECOINTEGRAL INGENIERÍA, SL | Córdoba, Córdoba | Visit site |
| ECOPEACE | Gwangju, Gwangju | Visit site |
| ECOPULSE | Mérida, Yucatán | Visit site |
| ECOS Group | Las Palmas de Gran Canaria, Las Palmas | Visit site |
| ECOVO SOLAR | José María Morelos, Quintana Roo | Visit site |
| ECOsys (An ITG Company) | Torah, Cairo | Visit site |
| ECPE European Center for Power Electronics | Nürnberg, Bavaria | Visit site |
| EDAMA - Energy, Water & Environment | عمّان, Amman | Visit site |
| EDGE Engineering and Science, LLC | Houston, Texas | Visit site |
| EDMI | Vif, Isère | Visit site |
| EDRI Solar | Chengdu Shi, Sichuan | Visit site |
| EE ENERGY ENGINEERS GmbH | Gelsenkirchen, North Rhine-Westphalia | Visit site |
| EED Advisory | Nairobi, Nairobi | Visit site |
| EEL Greentech Belfast | Belfast, Northern Ireland | Visit site |
| EEPLUS, INC | Lewisville, Texas | Visit site |
| EEW Energy from Waste Delfzijl B.V. | Farmsum, Groningen | Visit site |
| EExion Energy | Petah Tikva, Central District | Visit site |
| EFEN GmbH | Uebigau-Wahrenbrück, Brandenburg | Visit site |
| EG4 Electronics | Dallas, Texas | Visit site |
| EGGA - Galvanizing Europe | Brussels, Brussels-Capital | Visit site |
| EGGS, Part of Sopra Steria | Oslo, Oslo | Visit site |
| EGing PV | Changzhou Shi, Jiangsu | Visit site |
| EIGHT ADVISORY | Paris, Île-de-France | Visit site |
| EIKO POWER | Milano, Milan | Visit site |
| EIKTO TÜRKİYE | Döşemealtı, Antalya | Visit site |
| EISAC Automation | Cairo, Cairo | Visit site |
| EIT AUTOMATION (ENGINEERING INNOVATION TECHNOLOGY) | Ahmedabad, Gujarat | Visit site |
| EJOT FIXING SOLUTIONS NIGERIA LTD | Lagos Mainland, Lagos | Visit site |
| EJinstall B.V. | IJsselmuiden, Overijssel | Visit site |
| EKIUM | Lyon, Rhône | Visit site |
| EKO Instruments | 東京都, Tokyo Prefecture | Visit site |
| EKOPAK Sustainable Water | Deinze, East Flanders | Visit site |
| EKPO Fuel Cell Technologies GmbH | Dettingen an der Erms, Baden-Württemberg | Visit site |
| EL Imaging | Ourimbah, New South Wales | Visit site |
| ELB Energy | New Port Richey, Florida | Visit site |
| ELECTRI International | Washington, District of Columbia | Visit site |
| ELECTRICAL EQUIPMENT JOINT STOCK COMPANY | Long Thành, Đồng Nai | Visit site |
| ELMI Power | Niddatal, Hesse | Visit site |
| ELOS | Hammond, Louisiana | Visit site |
| ELSEWEDY ELECTRIC | New Cairo, Cairo | Visit site |
| ELTEC Green Energy GmbH | Berlin, Berlin | Visit site |
| EM Energy Services | Leawood, Kansas | Visit site |
| EM Impact Capital | London, England | Visit site |
| EMA Electromechanics | Sweetwater, Texas | Visit site |
| EMC Renewables | Southlake, Texas | Visit site |
| EN-POWER GROUP | New York, New York | Visit site |
| ENAG | Quimper, Finistère | Visit site |
| ENCYCLIS | London, England | Visit site |
| ENEO - the AEE Lebanon Training Partner | بيروت, Beirut | Visit site |
| ENEOS Renewable Energy Corporation | 東京都, Tokyo Prefecture | Visit site |
| ENERMAT RENOVABLES | Ciudad Real, Ciudad Real | Visit site |
| ENERPLAN | La Ciotat, Bouches-du-Rhône | Visit site |
| ENERPRIME ECUADOR CIA LTDA | Quito, Pichincha | Visit site |
| ENERSADO | Quinta do Anjo, Setúbal | Visit site |
| ENERSTEEL | Aytré, Charente-Maritime | Visit site |
| ENG | Newport Beach, California | Visit site |
| ENGIE Brasil | Rio de Janeiro, Rio de Janeiro | Visit site |
| ENGIE Chile | Las Condes, Santiago Metropolitan Region | Visit site |
| ENGIE México | Mexico City, Mexico City | Visit site |
| ENGIE Vianeo | Courbevoie, Hauts-de-Seine | Visit site |
| ENKA İnşaat ve Sanayi A.Ş. | Beşiktaş, Istanbul | Visit site |
| ENMAX | Calgary, Alberta | Visit site |
| ENOVA Service | Bunde, Lower Saxony | Visit site |
| ENTEKA S.A. - Energy Technologies & Constructions | Chalandri, Attica | Visit site |
| ENVICOOL | Shenzhen Shi, Guangdong | Visit site |
| ENVIROSCREEN SYSTEMS LLP | St Albans, England | Visit site |
| EOMAP | Seefeld, Bavaria | Visit site |
| EOSGlobe | Kalyan, Maharashtra | Visit site |
| EOSYS | Smyrna, Tennessee | Visit site |
| EP Engineering | New York, New York | Visit site |
| EP Equipment | Zhejiang | Visit site |
| EPC - Efficient Power Conversion | Manhattan Beach, California | Visit site |
| EPC Energy, Inc | Santa Clara, California | Visit site |
| EPC Power Corp | Poway, California | Visit site |
| EPEC Solutions, Inc. | Clayton, North Carolina | Visit site |
| EPG Source, LLC | Southlake, Texas | Visit site |
| EPI Power | Des Moines, Iowa | Visit site |
| EPiK Energy | Oklahoma City, Oklahoma | Visit site |
| EQS Global | a Kiwa company | Maia, Porto | Visit site |
| ERA Structural Engineering | Saint Paul, Minnesota | Visit site |
| ERBUD GROUP | Warszawa, Masovian Voivodeship | Visit site |
| ERG (Air Pollution Control) Ltd | Horsham, England | Visit site |
| ERGON PERU | Lima, Lima Province | Visit site |
| ERGY Soluciones Energéticas | Tuxtla Gutiérrez, Chiapas | Visit site |
| ERM | London, England | Visit site |
| ERMCO, Inc. | Greenwood, Indiana | Visit site |
| ERMCO-ECI | Dyersburg, Tennessee | Visit site |
| ERREKA | Antzuola, Gipuzkoa | Visit site |
| ES Foundry | Greenwood, South Carolina | Visit site |
| ES Solar | Layton, Utah | Visit site |
| ESAsolar | Maitland, Florida | Visit site |
| ESCO Lazio S.r.l | Latina, Latina | Visit site |
| ESE Solar | Liverpool, England | Visit site |
| ESHRAQ SOLAR | Al-Riyadh, Riyadh | Visit site |
| ESIPAC.online | Boca Raton, Florida | Visit site |
| ESKAP GmbH | Nürnberg, Bavaria | Visit site |
| ESR Pollmeier GmbH | Ober-Ramstadt, Hesse | Visit site |
| ESW | Bristol, England | Visit site |
| ETF Partners - The Environmental Technologies Fund | London, England | Visit site |
| ETS Efficient Technical Solutions GmbH (Elevion Group) | Gilching, Bavaria | Visit site |
| ETYC - Energy Transition Youth Club | Paris, Texas | Visit site |
| EUROVIA Polska | Kobierzyce, Lower Silesian Voivodeship | Visit site |
| EV Express Inc. | San Jose, California | Visit site |
| EV-lution Charging LLC | Chicago, Illinois | Visit site |
| EVALOR | Plérin, Côtes-d'Armor | Visit site |
| EVCİL SOLAR ENERJİ | Yenimahalle, Ankara | Visit site |
| EVE Energy Co.,Ltd. | HuiZhou Shi, Guangdong | Visit site |
| EVISE | Leeuwarden, Friesland | Visit site |
| EVO New Energy | Rancho Santa Margarita, California | Visit site |
| EVO Power USA, INC | Melbourne, Victoria | Visit site |
| EVOLEN | Puteaux, Hauts-de-Seine | Visit site |
| EVS, Inc. | Eden Prairie, Minnesota | Visit site |
| EWABA | Brussels, Brussels-Capital | Visit site |
| EWEC | Abu Dhabi, Abu Dhabi | Visit site |
| EXOES | Gradignan, Gironde | Visit site |
| EXPRESS 4X4 TRUCK RENTAL | Hatboro, PA | Visit site |
| EXRA TECHNICAL SERVICES Est | Dubai, Dubai | Visit site |
| EZ EV Electric | Denver, Colorado | Visit site |
| EZ Solar | Salt Lake City, Utah | Visit site |
| EZ-CRETE LLC | Swanzey, New Hampshire | Visit site |
| Earth Contact Products | Olathe, KS | Visit site |
| Earth Systems, LLC | Jacksonville Beach, Florida | Visit site |
| Earthics | Niles, Illinois | Visit site |
| East Coast Renewable Energy, LLC | Mashpee, Massachusetts | Visit site |