| PDX SEWER SOLUTIONS LLC | PB2497 | Plumbing | — |
| PERFECT SERVICE PLUMBING AND DRAIN CLEANING LLC | PB3324 | Plumbing | — |
| PERFORMANCE SYSTEMS INTEGRATION LLC | CLE569 | Electrical | — |
| PERFORMANCE SYSTEMS INTEGRATION LLC | PB2572 | Plumbing | — |
| PERMACOLD ENGINEERING INC | B05-1210 | Boiler | — |
| PERMACOLD ENGINEERING INC | CRE193 | Electrical | — |
| PERMACOLD ENGINEERING INC | LHR433 | Electrical | — |
| PETERS PLUMBING LLC | PB813 | Plumbing | — |
| PILOT PLUMBING & HEATING LLC | PB256 | Plumbing | — |
| PINNACLE SOLAR NW LLC | C1946 | Electrical | — |
| PIONEER GAS FURNACE NORTHWEST INC | LHR416 | Electrical | — |
| PIONEER GAS FURNACE NORTHWEST INC | PB2124 | Plumbing | — |
PLUUM CONSTRUCTION
JAMES PLUMLEE LLC | PB2688 | Plumbing | — |
| PNW PLUMBING LLC | PB3171 | Plumbing | — |
| POLECREEK LLC | PB3569 | Plumbing | — |
| POLOVIN PLUMBING LLC | PB2214 | Plumbing | — |
| PORTLAND COMPRESSOR INC | BP95 | Combo License | — |
| PORTLAND GENERAL ELECTRIC COMPANY | C1758 | Electrical | — |
| PORTLAND SECURITY DISPATCH INC | 26-857CLE | Electrical | — |
PORTLAND SIGN CO; MALAYA SIGNS; RUDNICK ELECTRIC SIGNS
B3 INVESTMENTS LLC | CLS51 | Electrical | — |
| POWER ELECTRIC INC | 26-1067C | Electrical | — |
| POWER NORTHWEST INCORPORATED | C1669 | Electrical | — |
| POWER PLUMBING CO | B99-2050 | Boiler | — |
| POWER PLUMBING CO | LMS533 | Electrical | — |
| POWER PLUMBING CO | 34-150PB | Plumbing | — |
| POWER PROFESSOR LLC | C1813 | Electrical | — |
| POWERALL ELECTRIC LLC | C1703 | Electrical | — |
| PRIME INTEGRATION SYSTEMS INC | CLE648 | Electrical | — |
PRIMELINE PLUMBING
PROCONSTRUCTION CORP | PB3535 | Plumbing | — |
| PRO ELECTRIC NW LLC | C2115 | Electrical | — |
| PRO HEATING AND COOLING INC | LHR559 | Electrical | — |
| PROCOM TECHNOLOGIES LLC | CLE282 | Electrical | — |
| PROTEMP ASSOCIATES INC | 26-1063CRE | Electrical | — |
| PWR PRO ELECTRIC LLC | C2167 | Electrical | — |
PYRAMID HEATING & COOLING
PHILLIS CONSTRUCTION CO | BB118 | Boiler | — |
PYRAMID HEATING & COOLING
PHILLIS CONSTRUCTION CO | LMS101 | Electrical | — |
PYRAMID HEATING & COOLING
PHILLIS CONSTRUCTION CO | PB676 | Plumbing | — |
| QUALICO CONSTRUCTION SERVICES LLC | PB2311 | Plumbing | — |
| QUANTUM MECHANICAL LLC | PB3477 | Plumbing | — |
| R & D ELECTRIC INC | C239 | Electrical | — |
| RAIMORE CONSTRUCTION LLC | PB1403 | Plumbing | — |
| RAMSAY SIGNS INC | 26-106CLS | Electrical | — |
| RAZORBLADE PLUMBING LLC | PB1928 | Plumbing | — |
| REALISTIC PLUMBING INC | 3-295PB | Plumbing | — |
| RED DIAMOND INSTALLATION LLC | LMS474 | Electrical | — |
| REDS ELECTRIC CO INC | 26-152C | Electrical | — |
| REESE PLUMBING LLC | PB3668 | Plumbing | — |
| RESILIENT RETROFITS LLC | PM72 | Combo License | — |
| RESILIENT RETROFITS LLC | C2054 | Electrical | — |
| RIVER CITY ENVIRONMENTAL INC | 26-789PB | Plumbing | — |
RJ RAMOS CONSTRUCTION AND ELECTRICAL CO
RJ RAMOS ENTERPRISES INC | C1254 | Electrical | — |
| RJC COMPLIANCE INC | LMS708 | Electrical | — |
| RJC COMPLIANCE INC | PB3524 | Plumbing | — |
| ROSE CITY ELECTRIC CO | C729 | Electrical | — |
ROSE CITY PLUMBING
SIVAD INC | PB2212 | Plumbing | — |
| ROSE CITY REFRIGERATION HEATING & AIR LLC | CRE295 | Electrical | — |
| ROSE CITY RENEWABLES LLC | CLR61 | Electrical | — |
| ROSE HEATING CO INC | 26-343PB | Plumbing | — |
| RSK SERVICE CORP | C1534 | Electrical | — |
| RUDOLF MECHANICAL INC | CRE329 | Electrical | — |
| RUDOLF MECHANICAL INC | LHR658 | Electrical | — |
| SALTBOXELECTRIC LLC | C2218 | Electrical | — |
| SASQUATCH PLUMBING LLC | PB2520 | Plumbing | — |
| SECURITY FIRST ALARM LLC | CLE236 | Electrical | — |
| SECURITY SIGNS INC | 26-560CLS | Electrical | — |
| SERVICE ELECTRIC NORTHWEST INC | C1015 | Electrical | — |
| SERVICE PLUS PLUMBING LLC | LMS631 | Electrical | — |
| SERVICE PLUS PLUMBING LLC | PB1986 | Plumbing | — |
| SEWER RENEWAL SPECIALISTS LLC | BB406 | Boiler | — |
| SEWER RENEWAL SPECIALISTS LLC | PB2308 | Plumbing | — |
| SHEPARD BROTHERS MANAGEMENT LLC | PB3210 | Plumbing | — |
| SHIFT ELECTRIC COMPANY LLC | C2003 | Electrical | — |
| SI ELECTRIC LLC | C2114 | Electrical | — |
| SIERRA CONSTRUCTION & EXCAVATION LLC | PB868 | Plumbing | — |
| SIGMA MECHANICAL LLC | LHR616 | Electrical | — |
| SIX STAR PLUMBING LLC | LMS705 | Electrical | — |
| SIX STAR PLUMBING LLC | PB2455 | Plumbing | — |
| SMITHPRO SERVICES INC | PB3499 | Plumbing | — |
| SOARING EAGLE ELECTRIC LLC | C1009 | Electrical | — |
| SOLAR ENERGY SOLUTIONS INC | PB155 | Plumbing | — |
| SOLEDAD ELECTRIC INC | C1627 | Electrical | — |
| SPECIALTY HEATING & COOLING LLC | PB2173 | Plumbing | — |
| SPIRIT ENTERPRISES OF OREGON INC | B99-2404 | Boiler | — |
| SQUIRES ELECTRIC INC | 26-1101C | Electrical | — |
SSM MECHANICAL SERVICES
STREIMER SHEET METAL WORKS INC | BB206 | Boiler | — |
SSM MECHANICAL SERVICES
STREIMER SHEET METAL WORKS INC | CRE11 | Electrical | — |
SSM MECHANICAL SERVICES
STREIMER SHEET METAL WORKS INC | LHR32 | Electrical | — |
| STACY AND WITBECK INC | PB2140 | Plumbing | — |
STAN THE HOTWATER MAN
SPIRIT ENTERPRISES OF OREGON INC | 54LMS | Electrical | — |
STAN THE HOTWATER MAN
SPIRIT ENTERPRISES OF OREGON INC | 26-632PB | Plumbing | — |
| STANTON ELECTRIC LLC | C260 | Electrical | — |
STREIMER
STREIMER SHEET METAL WORKS INC | PB2559 | Plumbing | — |
| SUITE ADDITIONS LLC | PB3393 | Plumbing | — |
| SUN GLOW INC | C1905 | Electrical | — |
| SUN GLOW INC | 26-785CLE | Electrical | — |
| SUN GLOW INC | 390LHR | Electrical | — |
| SUN GLOW INC | 141LMS | Electrical | — |
| SUN GLOW INC | PB2725 | Plumbing | — |
| SUNNYSIDE ELECTRIC CORP | 26-1010C | Electrical | — |
| SUNRISE CONTRACTORS INC | LHR507 | Electrical | — |
| SUNRISE HVAC LLC | LHR533 | Electrical | — |
| SUPERIOR UNDERGROUND LLC | PB2026 | Plumbing | — |
| SUTHERLAND PLUMBING LLC | LMS255 | Electrical | — |
| SUTHERLAND PLUMBING LLC | PB1365 | Plumbing | — |
| TELEDIGIT INC | 3-414CLE | Electrical | — |
| THE BENCHMARK GROUP LLC | BB345 | Boiler | — |
| THE ELECTRIC COMPANY LLC | C1553 | Electrical | — |
THE ELECTRIC WORKS INC
M & M ELECTRICAL CONTRACTORS INC | 26-484C | Electrical | — |
THE HEAT PUMP STORE
HOME ENERGY SCIENCES INC | C1163 | Electrical | — |
THE HEAT PUMP STORE
HOME ENERGY SCIENCES INC | CRE117 | Electrical | — |
THE HEAT PUMP STORE
HOME ENERGY SCIENCES INC | LHR313 | Electrical | — |
| THE HEATING SPECIALIST LLC | BB380 | Boiler | — |
| THE HEATING SPECIALIST LLC | CRE340 | Electrical | — |
| THE HEATING SPECIALIST LLC | LHR680 | Electrical | — |
| THE HEATING SPECIALIST LLC | LMS636 | Electrical | — |
| THE HEATING SPECIALIST LLC | PB3438 | Plumbing | — |
| THUNDERBIRD ELECTRIC INC | 26-1087C | Electrical | — |
| TICE ELECTRIC COMPANY | 26-126C | Electrical | — |
| TICE ELECTRIC COMPANY | 746LMS | Electrical | — |
| TIDY PLUMBING LLC | LMS656 | Electrical | — |
| TIDY PLUMBING LLC | PB3243 | Plumbing | — |
| TINY HOOKUPS LLC | PB3145 | Plumbing | — |
| TITAN ELECTRIC INC | 26-954C | Electrical | — |
| TRANE US INC | BB14 | Boiler | — |
| TRANE US INC | CLE831 | Electrical | — |
| TRANQUILITY HEATING AND COOLING LLC | CRE261 | Electrical | — |
| TRANQUILITY HEATING AND COOLING LLC | LHR540 | Electrical | — |
| TRANQUILITY HEATING AND COOLING LLC | PB3358 | Plumbing | — |
| TREE FORT ELECTRIC LLC | C2174 | Electrical | — |
| TRIPLE T HVAC LLC | LHR744 | Electrical | — |
| TRUE BLUE PLUMBING LLC | LMS587 | Electrical | — |
| TRUE BLUE PLUMBING LLC | PB1259 | Plumbing | — |
| TRUSTED ELECTRIC LLC | C2154 | Electrical | — |
| TWO MOUNTAIN COMPANY LLC | PB2670 | Plumbing | — |
| UKA CONSTRUCTION LLC | PB4 | Plumbing | — |
ULTIMATE COMFORT
DRT ENTERPRISES INC | LHR235 | Electrical | — |
ULTIMATE COMFORT
DRT ENTERPRISES INC | PB1166 | Plumbing | — |
| UNION SIGN COMPANY LLC | CLS62 | Electrical | — |
| UPLIFTIC ENERGY LLC | CLR49 | Electrical | — |
| UWD PREBUILD, INC | PB2180 | Plumbing | — |
| VACUFLO NORTHWEST LLC | CLE775 | Electrical | — |
| VACUFLO NORTHWEST LLC | LMS630 | Electrical | — |
| VARTEN HEATING AND COOLING LLC | LHR771 | Electrical | — |
| VARTEN HEATING AND COOLING LLC | LMS710 | Electrical | — |
| VIKING ELECTRIC INC | 26-569C | Electrical | — |
| VISION SIGNS LLC | CLS8 | Electrical | — |
| WACHLIN WATERWORKS LLC | PB3709 | Plumbing | — |
| WAH YUE CONSTRUCTION COMPANY LLC | PB598 | Plumbing | — |
| WALSH CONSTRUCTION CO | 26-792PB | Plumbing | — |
| WALSH CONSTRUCTION CO | PFS786 | Prefab | — |
| WB EXCAVATION LLC | PB2431 | Plumbing | — |
| WEEKEND PLUMBER LLC | LMS678 | Electrical | — |
| WEEKEND PLUMBER LLC | PB1032 | Plumbing | — |
| WEST SIDE ELECTRIC COMPANY INC | 26-135C | Electrical | — |
| WESTECH CONSTRUCTION INC | 3-523PB | Plumbing | — |
| WHITE LIGHTNING ELECTRIC INC | 37-817C | Electrical | — |
| WILLAMETTECH INC | CLE814 | Electrical | — |
| WILSON ELECTRIC COMPANY | C1374 | Electrical | — |
| WOLF AUDIO LLC | CLE702 | Electrical | — |
| WOLF DOG CONSTRUCTION LLC | PB3256 | Plumbing | — |
WOODLINE ELECTRIC
WOODLINE ELECTRICAL LLC | C2012 | Electrical | — |
| YVN PLUMBING LLC | LMS643 | Electrical | — |
| YVN PLUMBING LLC | PB3459 | Plumbing | — |
| Z DRAIN PDX LLC | PB3480 | Plumbing | — |
| ZAUGG TIMBER SOLUTIONS HOLDINGS INC | PFS866 | Prefab | — |
| ZB CONSTRUCTION & PLUMBING LLC | PB2451 | Plumbing | — |
| ZMAN PLUMBING LLC | PB1783 | Plumbing | — |