Bedrift G - Nannestad
- Gebreyohannes
- Guldbakke
- Gulars AS
- Gvn 4 AS
- Gardermoen Antirust AS
- Gjermund Berntsen AS
- Gigernes Media
- Garders Fokus
- Gutierrez-Mowinckel
- Gvn 7 AS
- Gvn 5 AS
- Green Tec AS
- Gulbrandsen Førstehjelpkonsult
- Gardermoen Baptistmenighet
- Gentian Ndreca
- Granås Maskin AS
- Granås Maskin AS
- Gardermoen Antirust AS
- Gardermoen Flyklubb
- Gebreyohannes Transport
- Grabit Norge AS
- GM Utleie AS
- Gardermoen Kristne Fellesskap
- Galewer Bygg Gorny
- Gunnar Arnesen Transport
- Gullsmed Lars Elstad
- Gyldenberg Norway Holding
- Granaas Julie Sandaunet
- Gro Øverland Håkenstad
- Gardermoen Flyklubb Fueling AS
- Gli Activity Sture Mikalsen
- Gyldenberg Bygg & Prosjekt
- Gardermoen Elektro Vegard Haug
- Gehrke Trening og Helse
- Gyldenberg Bygg og Prosjekt
- Golden Pizza & Kebab AS
- Gardermoen Bed & Breakfast AS
- Global Invest And Construction Holding AS
- Gårdsterapi Arbeide/Bilde/Form. Jane Juul Kutzbach
- Gardermoen Hotel, Bed & Breakfast