 | LARS MYHRE ØSTFOLD AS | 954878090 | SARPSBORG |
| LARS OLAV BERGSVÅG | 970318615 | ETNE |
| LARS P. DAHLE MASKIN AS | 991099018 | KLEPP |
| LARS SÆTERØY & SØNN AS | 930263192 | KRISTIANSUND |
| LARSSEN MASKIN AS | 986674373 | FAUSKE |
| LARS STORHAUG AS | 971059699 | DOVRE |
| LARS THORBJØRNSEN GRAVING OG TRANSPORT AS | 812075292 | ARENDAL |
| LARS TORE OLSEN AS | 915807704 | ALTA |
| LARS UVAAG AS | 930342262 | INDRE ØSTFOLD |
| LARVIK RØRHANDEL AS | 913809912 | LARVIK |
| LARVIK VENTILASJON AS | 997899113 | LARVIK |
| LARVIK VVS AS | 927659867 | LARVIK |
| LASSE FÆSTE AS | 927981599 | FROGN |
| LASSE HOLST AS | 951787531 | FREDRIKSTAD |
| LÅSSENTERET AS | 913143159 | BERGEN |
| LÁSSE RØR AS | 997203593 | PORSANGER |
| LAUGSTOL AS | 964715378 | PORSGRUNN |
| LAUKAS ELEKTRISKE AS | 879484952 | LILLESTRØM |
| LAUNES ENTREPRENØR AS | 956532337 | BYKLE |
| LAUPSTAD BYGG AS | 933725464 | HAMAR |
| LAURITSEN VVS AS | 920643086 | NORDRE FOLLO |
| LAURSEN ERIK BYGGMESTER | 969949334 | SARPSBORG |
| LAUVÅSHYTTA AS | 913256336 | SØR-FRON |
| Lavangen Byggeindustri AS | 947725114 | LAVANGEN |
| LAVANGEN ENTREPRENØR AS | 913286669 | LAVANGEN |
| LAVANGEN MASKIN AS | 922048622 | LAVANGEN |
| LAVASOX AS | 997712528 | OSLO |
| LB BYGG AS | 923181849 | MOSS |
| LB ELEKTRO AS | 915624278 | LARVIK |
| LBI AS | 819503052 | KRISTIANSAND |
| L BROTUN RØRSERVICE | 968590162 | DRAMMEN |
| LBU AS | 916128983 | INDRE ØSTFOLD |
| LD BYGG LINAS DAVALGA | 927390515 | BERGEN |
| LE-BYGG AS | 918698817 | BYKLE |
| LECON HOLDING AS | 993341800 | ÅLESUND |
| LEFDAL INSTALLASJON AS | 968545337 | BÆRUM |
| LEGALETT NORGE AS | 931986783 | HVALER |
| LEGANGER MASKIN AS | 911972646 | KVINNHERAD |
| Leif Brun & Sønner A/S | 834464012 | MELØY |
| LEIF GRIMSRUD AS | 832516902 | HALDEN |
| LEIF K FJELDE AS | 929599853 | NARVIK |
| LEIF LIE EFTF. MASKIN AS | 991443436 | ØYGARDEN |
| LEIF MAGNE LOKØY | 970318437 | ØYGARDEN |
| LEIF NÆVDAL CONSULTING AS | 916896220 | ALVER |
| LEIF RUNARS AS | 995863243 | NES |
| LEIF STURLA LILLESTRØM MASKIN OG TRANSPORT AS | 999609090 | ALVDAL |
| LEIKNES AS | 942830068 | SENJA |
| LEIKVOLL'S KJERNEBORING AS | 976588894 | KLEPP |
| LEIN-NILSSEN AS | 986391134 | FROSTA |
| LEIRBOTN ENTREPRENØR AS | 981505646 | ALTA |