 | LIER RØRSERVICE Kai Skjold | 992228083 | LIER |
| LIERSKOGEN ANLEGG AS | 977324459 | LIER |
| LIE VENTILASJON AS | 987884630 | SANDNES |
| LIE VVS AS | 915635717 | HAMAR |
| LIFETEC AS | 971134011 | BÆRUM |
| LIFTCONSULT AS | 998026075 | TRONDHEIM |
| LIFT TECH AS | 964736804 | ÅLESUND |
| LILJEDAHL MASKINTJENESTER AS | 929150732 | VINJE |
| LILLEBØ SAND OG TRANSPORT AS | 992698578 | SANDNES |
| LILLEBY BYGG | 891210582 | TØNSBERG |
| LILLEHAMMER ELEKTRO AS | 911948680 | LILLEHAMMER |
| LILLEHAMMER TAK AS | 821127122 | LILLEHAMMER |
| LILLEHAMMER TAKST AS | 931758365 | LILLEHAMMER |
| LILLEHAMMER VENTILASJON AS | 958077289 | LILLEHAMMER |
| LILLENGA AS | 927733641 | ASKER |
| LILLEØRE ANLEGG AS | 926936395 | TIME |
| LILLEROVDE MASKIN AS | 992105259 | ÅLESUND |
| LILLESAND ANLEGG AS | 996527662 | LILLESAND |
| LILLESANDHUS AGDER AS | 915192440 | GRIMSTAD |
| LILLESAND VVS AS | 991699694 | LILLESAND |
| LILLESKOG FORSKALING AS | 999171591 | TYSVÆR |
| LILLESTRØM ARKITEKTER AS | 968877356 | LILLESTRØM |
| LILLESTRØM RØR AS | 925054046 | LILLESTRØM |
| LILLESTRØM RØRSERVICE AS | 921957300 | OSLO |
| LILLØY BYGG AS | 913811445 | SKIEN |
| LIMA RØR AS | 981353633 | GJESDAL |
| LINCON PROSJEKTLEDELSE AS | 921862725 | TRONDHEIM |
| LINDAL TREINDUSTRI AS | 913061799 | RISØR |
| LINDANGER MASKIN AS | 988967416 | STAVANGER |
| LINDÅS VVS NILS TRÆLAND AS | 915836445 | ALVER |
| LINDEKLEIV VVS AS | 913018702 | KRISTIANSAND |
| LIND ENTREPRENØR AS | 922221642 | LAVANGEN |
| LINDESNES BYGG AS | 844678762 | LINDESNES |
| LINDHAUGEN AS | 979743467 | SARPSBORG |
| LINDLAND BYGGPROSJEKTERING AS | 995532239 | KRISTIANSAND |
| LINDLAND MASKIN AS | 963654812 | LYNGDAL |
| LINDNER SCANDINAVIA AB | 923800905 | |
| LINDSET ENTREPRENØR AS | 998477883 | VESTNES |
| LINDSTAD BYGG AS | 851314032 | VOSS |
| LINDSTAD MASKIN AS | 925141445 | LILLESTRØM |
| LINDTNER VVS AS | 978618642 | BERGEN |
| LINE SOLGAARD ARKITEKTER AS | 929577272 | FREDRIKSTAD |
| LINHØI ENTREPRENØR AS | 926960725 | ASKER |
| LINJE ARKITEKTUR AS | 988420603 | OSLO |
| LINJE ELEKTRO SERVICE AS | 922184399 | LØRENSKOG |
| LINJEPARTNER AS | 912435024 | LEVANGER |
| LINJEPROFF AS | 992893273 | HAMARØY |
| LINK ARKITEKTUR AS | 975999726 | OSLO |
| LINK BYGG AS | 930076295 | STAVANGER |
| LINNERUD AS | 996228940 | HOLMESTRAND |