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| LEIKVOLL'S KJERNEBORING AS | 976588894 | KLEPP |
| LEIN-NILSSEN AS | 986391134 | FROSTA |
| LEIRBOTN ENTREPRENØR AS | 981505646 | ALTA |
| LEIRNES RØR OG KJØL | 982438756 | HØYANGER |
| LEITHE & CHRISTIANSEN AS | 919513845 | OSLO |
| LEITHE ELEKTRO AS | 984681755 | LØRENSKOG |
| LEIV NESVIK | 884034132 | HÅ |
| LEKKASJETEKNIKK AS | 930698253 | OSLO |
| LEKVEN BYGG AS | 918023887 | BJØRNAFJORDEN |
| LEKVEN BYGGMESTERFORRETNING AS | 914005035 | BERGEN |
| LEKVEN ENTREPRENØR AS | 912158438 | BJØRNAFJORDEN |
| LEO HG AS | 815014332 | LIER |
| LEON BYGG AS | 916008422 | INDRE ØSTFOLD |
| LEONHARD NILSEN & SØNNER AS | 937843771 | ANDØY |
| LERCHE ARKITEKTER AS | 946890987 | OSLO |
| LERDAL BYGG AS | 830857192 | OSLO |
| LERVIK ARKITEKTER AS | 995661748 | GISKE |
| LERVIK-BYGG AS | 924460245 | STAVANGER |
| LESJA BULLDOZERLAG AS | 913860349 | LESJA |
| LESJA RØR AS | 867278842 | LESJA |
| LETMOLIE ENTREPRENØR AS | 924636971 | DRAMMEN |
| LETNES ENTREPRENØR AS | 919605960 | INDERØY |
| LETT-TAK SYSTEMER AS | 988782300 | LARVIK |
| LEVE HYTTER AS | 998239524 | ØYER |
| LEVEL BYGG OG EIENDOM AS | 998141133 | SKIPTVET |
| LG-BYGG AS | 997143647 | INDRE FOSEN |
| LH ANLEGG AS | 922038872 | KVINESDAL |
| L HANSEN ENGINEERING | 880332562 | NORDRE FOLLO |
| LH DRIFT HOLDING AS | 921624212 | LYNGDAL |
| LH ELEKTRO AS | 925750581 | AURSKOG-HØLAND |
| L HJERTNES AS | 918329234 | BJØRNAFJORDEN |
| LHV TJENESTER AS | 990702632 | STAVANGER |
| LIABØ ENTREPRENØR AS | 916036736 | KRISTIANSUND |
| LIABØ TRANSPORT AS | 875813552 | TRONDHEIM |
| LIABYGG AS | 922710406 | SKIEN |
| LIBERG AS | 985174806 | LARVIK |
| LIDTUN MUR OG FLIS AS | 916903944 | OSTERØY |
| LID VENTILASJON AS | 977482933 | OSLO |
| LIE ANLEGG AS | 914831784 | VENNESLA |
| LIE BLIKK AS | 988976849 | KLEPP |
| LIE BYGG AS | 979476841 | KONGSBERG |
| LIE BYGG & EIENDOM AS | 912319539 | LIER |
| LIEFTING ARKITEKTUR & RESTAURERING AS | 998703905 | SARPSBORG |
| LIE GLASS AS | 826370262 | SANDNES |
| LIENTO AS | 927216485 | OSLO |
| LIE ØYEN ARKITEKTER AS | 946736953 | OSLO |
| LIER ANLEGG AS | 986487611 | LIER |
| LIER GRAVING OG TRANSPORT AS | 912544060 | LIER |
| LIER RØRSENTER AS | 856731332 | LIER |