| Gimv | Antwerpen, Antwerp | Visit site |
| Gindre Copper | North Carolina | Visit site |
| Gipe Associates, Inc. | Easton, Maryland | Visit site |
| Girosun | Saint-Jean-de-Savigny, Manche | Visit site |
| Giulio Barbieri | Poggio Renatico, Ferrara | Visit site |
| Giya | Curitiba, Paraná | Visit site |
| Glanris | Olive Branch, Mississippi | Visit site |
| Glas Ocean Electric | Halifax, Nova Scotia | Visit site |
| Glass technology FZ LLC | Ras Al Khaimah | Visit site |
| Global Environment Facility | Washington, District of Columbia | Visit site |
| Global Environment Fund | Bethesda, Maryland | Visit site |
| Global Incubator Network Austria (GIN) | Vienna, Vienna | Visit site |
| Global Partners | Istanbul, Istanbul | Visit site |
| Global Power Generation Australia | Canberra, Australian Capital Territory | Visit site |
| Global Rock Works | Redmond, Oregon | Visit site |
| Global Rope Access Inc | West Kelowna, British Columbia | Visit site |
| Global Tank Group A/S | Ringkøbing, Central Denmark | Visit site |
| Globo Brasil | Itatiba, São Paulo | Visit site |
| Glumac | San Francisco, California | Visit site |
| Go-Solar by D'Ieteren | Waasmunster, East Flanders | Visit site |
| GoBe Consultants Ltd | Buckfastleigh, England | Visit site |
| GoGreen Solar | Anaheim, California | Visit site |
| GoShop Energy | Virton, Luxembourg | Visit site |
| Goal Solar | Beaudesert, Queensland | Visit site |
| Godoy Córdoba | Sopó, Cundinamarca | Visit site |
| Going Solar | Melbourne, Victoria | Visit site |
| Gold Chain Metal Technology Co., Ltd. | Kaohsiung City, Renwu District | Visit site |
| Gold Electronic Equipment Inc. | Zhejiang | Visit site |
| Gold Hydrogen | Brisbane, Queensland | Visit site |
| Gold Path Solar | Dublin, Ohio | Visit site |
| Gold Standard | Châtelaine, Geneva | Visit site |
| Golden Crown Middle East Ltd | Tehran, Tehran | Visit site |
| Golden Group S.p.A. | Argelato, Bologna | Visit site |
| Golden State Power Solutions | Stockton, California | Visit site |
| Goldi Solar Pvt. Ltd. | Surat | Visit site |
| Goldman Copeland Associates, Engineers DPC | New York, New York | Visit site |
| Goncay Plastik San. ve Tic. A.S. | Ergene, Tekirdağ | Visit site |
| Good Future Solar | Zhengzhou Shi, Henan | Visit site |
| GoodZero | Amsterdam, North Holland | Visit site |
| Goode EIS (Suzhou) Corp. Ltd. | Suzhou Shi, Jiangsu | Visit site |
| Goodsun | Grass Valley, California | Visit site |
| Gooree | Shenzhen Shi, Guangdong | Visit site |
| Gosmart Lighting Enterprise | Lucena, Lucena | Visit site |
| Gotion Inc. | Fremont, California | Visit site |
| Gottengreen | Paris, Île-de-France | Visit site |
| Gouach | Bordeaux, Gironde | Visit site |
| Gould Group | Westerville, Ohio | Visit site |
| Grace Solar | Flatts, Smith's | Visit site |
| Graham | Calgary, Alberta | Visit site |
| Grape Solar, Inc. | Eugene, Oregon | Visit site |
| Graphene - The University of Manchester | Manchester, England | Visit site |
| Grass2Gas Biofuels | Moga, Punjab | Visit site |
| GrassWorx LLC | St. Louis, Missouri | Visit site |
| Gravis Robotics | Zürich, Zürich | Visit site |
| Gray AES | Lexington, Kentucky | Visit site |
| Gray Hawk Land Solutions | Denver, Colorado | Visit site |
| GrayMatter Robotics | Los Angeles, California | Visit site |
| Graybar | Clayton, Missouri | Visit site |
| Graybrooke Technologies, LLC | Winston-Salem, North Carolina | Visit site |
| GreFlow Energy | Shenzhen Shi, Guangdong | Visit site |
| Gread Cleanergy | Xiamen Shi, Fujian | Visit site |
| Great Bay Renewables | Portsmouth, New Hampshire | Visit site |
| Great British Energy | Aberdeen, Scotland | Visit site |
| Great Lakes Dredge & Dock Company, LLC | Houston, Texas | Visit site |
| Greatario Tanks & Covers | Innerkip, Ontario | Visit site |
| Gree Electric Appliances, Inc. of Zhuhai | Qingyuan Shi, Guangdong | Visit site |
| Green Angel Syndicate | London, England | Visit site |
| Green Cardinal Energy | Centennial, Colorado | Visit site |
| Green Career Centre | Toronto, Ontario | Visit site |
| Green Cat Renewables Europe | Amersfoort, Utrecht | Visit site |
| Green Clean Solar & Wind | Marietta, Georgia | Visit site |
| Green Connect Australia | Adelaide, South Australia | Visit site |
| Green Day Power | Sacramento, California | Visit site |
| Green Energy Biofuel | Columbia, South Carolina | Visit site |
| Green Energy Consumers Alliance | Boston, Massachusetts | Visit site |
| Green Energy M&A GmbH | Vechta, Lower Saxony | Visit site |
| Green Energy Park | Marrakesh-Safi | Visit site |
| Green Energy Storage | Breda, North Brabant | Visit site |
| Green Energy Trading | Melbourne, Victoria | Visit site |
| Green Essence Lebanon | زحلة, Beqaa | Visit site |
| Green Gain energy | San Francisco, California | Visit site |
| Green Gravity | Wollongong, New South Wales | Visit site |
| Green Hat Consulting, S.L. | Oleiros, A Coruña | Visit site |
| Green Hydrogen Coalition | Stockton, California | Visit site |
| Green India Renewable Energy | Noida, Uttar Pradesh | Visit site |
| Green Light Energy | Lakewood, New Jersey | Visit site |
| Green Pace Financial, Inc. | San Diego, California | Visit site |
| Green Plains Inc. | Omaha, Nebraska | Visit site |
| Green Pulse Energy Limited | Colchester, England | Visit site |
| Green Recovery (Leusden en Breda) | Leusden, Utrecht | Visit site |
| Green Rhino® | Ipswich, England | Visit site |
| Green Roof Technology - Jörg Breuning 🌞🌿🏠 | Baltimore, Maryland | Visit site |
| Green Sky Solar | Melbourne, Victoria | Visit site |
| Green Solar Technologies | North Hollywood, California | Visit site |
| Green Source EPC | Anaheim, California | Visit site |
| Green Spark Solar | Christchurch, Canterbury | Visit site |
| Green Tech Valley | Graz, Styria | Visit site |
| Green Twirl Energy Ltd. | Picton, Ontario | Visit site |
| Green Wave Solar | Murfreesboro, Tennessee | Visit site |
| Green Wind Renewables | Perth, Western Australia | Visit site |
| Green World Renewable Energy LLC | London, England | Visit site |
| Green-Y Energy AG | Hasle bei Burgdorf, Bern | Visit site |
| GreenBase Solar | San Jose, California | Visit site |
| GreenBrilliance | Herndon, Virginia | Visit site |
| GreenEdge Capital | Berlin, Berlin | Visit site |
| GreenGenUK | Helston, England | Visit site |
| GreenHarvest | 臺北市, Taipei | Visit site |
| GreenHearth | England | Visit site |
| GreenLane Development | Burbank, California | Visit site |
| GreenMax Capital Group | New York, New York | Visit site |
| GreenPoint Partners | New York, New York | Visit site |
| GreenPulse | Gent, East Flanders | Visit site |
| GreenSolServices | Grand Prairie, Texas | Visit site |
| GreenVolt Energia Solar | Betim, Minas Gerais | Visit site |
| Greenalia S.A. | A Coruña, A Coruña | Visit site |
| Greenbacker | New York, New York | Visit site |
| Greenbelt Capital Partners | Austin, Texas | Visit site |
| Greenberg Traurig, LLP | Milano, Milan | Visit site |
| Greenbulb Designs | MEPF Consultant | Ahmedabad, Gujarat | Visit site |
| Greene Tweed | Lansdale, Pennsylvania | Visit site |
| Greenely | Stockholm, Stockholm | Visit site |
| Greener4u | Lisse, South Holland | Visit site |
| Greenopeak GmbH | Nürnberg, Bavaria | Visit site |
| Greenov | Vannes, Morbihan | Visit site |
| Greenshine New Energy LLC | Lake Forest, California | Visit site |
| Greensun Solar | Hefei Shi, Anhui | Visit site |
| Greentech Renewables | San Diego, California | Visit site |
| Greenville Energy Ltd | Omagh, Northern Ireland | Visit site |
| Grenergy | Madrid, Madrid | Visit site |
| Grenevia | Kalety, Silesian Voivodeship | Visit site |
| Grengy Photovoltaic | Xiamen Shi, Fujian | Visit site |
| Grensol | Zürich, Zürich | Visit site |
| Gresco Utility Supply, Inc. | Forsyth, Georgia | Visit site |
| Grewfarm | Marche-en-Famenne, Luxembourg | Visit site |
| Grid Status | Chicago, Illinois | Visit site |
| Grid Strategies LLC | Washington, District of Columbia | Visit site |
| Grid Tech | Cooroy, Queensland | Visit site |
| Grid Tie Solar | Rio de Janeiro, Rio de Janeiro | Visit site |
| GridPoint | Reston, Virginia | Visit site |
| GridSeer Inc | Durham, North Carolina | Visit site |
| GridStor | Portland, Oregon | Visit site |
| GridStrong | New York, New York | Visit site |
| Gridfree Solar Energy Limited | Bhilwara, Rajasthan | Visit site |
| Gridient | Denver, Colorado | Visit site |
| Gridwealth | Sudbury, Massachusetts | Visit site |
| Gripple Canada | Oakville, Ontario | Visit site |
| Gripple Germany | Aßlar, Hesse | Visit site |
| Gripple India | New Delhi, Delhi | Visit site |
| Gripple Industrial Ibérica, S.L | Cadrete, Zaragoza | Visit site |
| Gripple Srl | Bergamo, Bergamo | Visit site |