| 503 EXCAVATION INC | PB2932 | Plumbing | — |
| A & B AIR SOLUTIONS LLC | CRE268 | Electrical | — |
| A & B AIR SOLUTIONS LLC | LHR553 | Electrical | — |
| A WATERPROOFING & DRAINAGE INC | PB2169 | Plumbing | — |
| A&E HEATING AND AIR INC | LHR297 | Electrical | — |
| A&E HEATING AND AIR INC | PB2515 | Plumbing | — |
| ACCURATE ELECTRIC OF OREGON INC | C637 | Electrical | — |
| ACTIVE ELECTRIC LLC | C2185 | Electrical | — |
| ADM PLUMBING LLC | PB3484 | Plumbing | — |
| ADROIT PLUMBING LLC | PB2668 | Plumbing | — |
| ALADDIN HEATING & AC CORP | LHR361 | Electrical | — |
| ASSOCIATED PLUMBING CO | 26-412PB | Plumbing | — |
| BRANCHED OUT PLUMBING LLC | PM43 | Combo License | — |
| CARON ELECTRICAL CONTRACTORS LLC | C1706 | Electrical | — |
COMFORT CONNECTION
COMFORTCO INC | C1712 | Electrical | — |
COMFORT CONNECTION
COMFORTCO INC | CRE209 | Electrical | — |
COMFORT CONNECTION
COMFORTCO INC | LHR451 | Electrical | — |
| CRAFTSMAN ELECTRIC INC | C1239 | Electrical | — |
| CRYSTAL CLEAR PLUMBING LLC | PB3213 | Plumbing | — |
| DALE BRITTON INC | 26-778PB | Plumbing | — |
| DILIGENT PLUMBING LLC | LMS669 | Electrical | — |
| DILIGENT PLUMBING LLC | PB2188 | Plumbing | — |
| DUTY CALLS PLUMBING LLC | PB2568 | Plumbing | — |
EAST-GATE ELECTRIC
WIRED CONSTRUCTION INC | 26-340C | Electrical | — |
| EASTSIDE PAVING INC | PB349 | Plumbing | — |
ELITE CLIMATE CONTROL
ELITE CLIMATE CONTROL & CONSTRUCTION INC | BB388 | Boiler | — |
| FRONTLINE ELECTRIC INC | C196 | Electrical | — |
| FTM HEATING & COOLING LLC | CRE360 | Electrical | — |
| FTM HEATING & COOLING LLC | LHR739 | Electrical | — |
| G & P OBRIST EXCAVATING INC | PB232 | Plumbing | — |
| GARYS ELECTRIC CO LLC | C1010 | Electrical | — |
| GAZELLE PLUMBING LLC | PB2319 | Plumbing | — |
| GLACIER PLUMBING LLC | PB2658 | Plumbing | — |
| GO IO ELECTRIC LLC | CLE743 | Electrical | — |
| GO IO ELECTRIC LLC | CLR58 | Electrical | — |
| GO IO ELECTRIC LLC | CLS58 | Electrical | — |
| GO IO ELECTRIC LLC | CPI252 | Electrical | — |
| GO IO ELECTRIC LLC | CRE312 | Electrical | — |
| GO IO ELECTRIC LLC | LHR631 | Electrical | — |
| GO IO ELECTRIC LLC | LMS555 | Electrical | — |
| GREAT INDUSTRIES LLC | CLE130 | Electrical | — |
| GRESHAM ELECTRIC INC | 26-1004C | Electrical | — |
| HOODVIEW HEATING AND AIR CONDITIONING INC | LHR714 | Electrical | — |
| IMPERIAL BROWN INC | 98PFC | Prefab | — |
| JCB CONSTRUCTION AND PLUMBING LLC | PB1688 | Plumbing | — |
| JKR CONSTRUCTION LLC | PB2119 | Plumbing | — |
| JOHNNYS EXCAVATION INC | PB1941 | Plumbing | — |
| JW UNDERGROUND INC | 26-826PB | Plumbing | — |
| KRUCKMAN PLUMBING LLC | PB1602 | Plumbing | — |
| LJ INDUSTRIES LLC | LMS658 | Electrical | — |
| LJ INDUSTRIES LLC | PB3498 | Plumbing | — |
LOST RIVER CONSTRUCTION
JACKSONBROOKE LLC | PB3391 | Plumbing | — |
| M&M CONSTRUCTION SERVICES INC | 26-764PB | Plumbing | — |
| MERRILL ELECTRIC LLC | C1140 | Electrical | — |
| MERRILL ELECTRIC LLC | PB3361 | Plumbing | — |
| MIKE HAMILTON CONSTRUCTION LLC | LMS303 | Electrical | — |
| MOUNTAIN WEST PLUMBING LLC | LMS616 | Electrical | — |
| MOUNTAIN WEST PLUMBING LLC | PB2829 | Plumbing | — |
| N8 HOLMLUND INC | PB1934 | Plumbing | — |
| NEW THEORY ELECTRIC INC | C1648 | Electrical | — |
| NEW TREND TECHNOLOGY LLC | CLE785 | Electrical | — |
| NEXUS PLUMBING LLC | LMS609 | Electrical | — |
| NEXUS PLUMBING LLC | PB3364 | Plumbing | — |
| OLSON WELL DRILLING AND PUMP INC | CPI146 | Electrical | — |
| ONPOINTPLUMBING LLC | PM81 | Combo License | — |
| ORIENT ELECTRIC INC | C862 | Electrical | — |
| OXBOW HEATING AND COOLING LLC | LHR485 | Electrical | — |
| OXBOW HEATING AND COOLING LLC | PB2558 | Plumbing | — |
PERFECT FLUSH; PERFECT FLUSH PLUMBING
BOHANNA & DEVENEY LLC | PB2262 | Plumbing | — |
| POLAR PLUMBING LLC | PB1431 | Plumbing | — |
| PORTLAND STAR PLUMBING LLC | PB2239 | Plumbing | — |
| POSITIVE CONSTRUCTION LLC | 26-1204C | Electrical | — |
| PQW CONSTRUCTION LLC | PB2452 | Plumbing | — |
| PROPER ELECTRIC INC | C1982 | Electrical | — |
| PRT CONSTRUCTION LLC | PB3660 | Plumbing | — |
| QUALITY SEPTIC AND EXCAVATION LLC | PB2889 | Plumbing | — |
| RECON PLUMBING LLC | PB2461 | Plumbing | — |
| REFRIGERATION CONTRACTORS INC | B99-2206 | Boiler | — |
| REFRIGERATION CONTRACTORS INC | 666LHR | Electrical | — |
| REYNOLDS SEWERS INC | PB1791 | Plumbing | — |
| RICARDOS PLUMBING LLC | PB3657 | Plumbing | — |
| ROBERTSON PLUMBING LLC | PB2512 | Plumbing | — |
| SAFE ELECTRIC INC | C259 | Electrical | — |
SANDY ELECTRIC
SANDY ELECTRIC INC | C215 | Electrical | — |
| STEPHEN WALSH PLUMBING INC | PB2899 | Plumbing | — |
| SYNCHRO SOLAR LLC | C1129 | Electrical | — |
| SYNCHRO SOLAR LLC | CLR14 | Electrical | — |
| SYNCHRO SOLAR LLC | PB781 | Plumbing | — |
| TK PLUMBING LLC | PB2183 | Plumbing | — |
| TRAXX UNDERGROUND INC | PB1764 | Plumbing | — |
| VZ EXCAVATION LLC | PB2125 | Plumbing | — |
| WALKER FORCE ELECTRIC LLC | C1563 | Electrical | — |
| WILSON PLUMBING CO | 26-591PB | Plumbing | — |