| Company Name | URL |
| Abbott Construction | www.jrabbott.com |
| Acme Construction Supply Company | www.acmetool.com |
| Advanced Technology Group | www.atgweb.com |
| All Source Construction Supply | www.asupply.net |
| Alliant Systems | www.alliant-systems.com |
| Anchor Insurance | www.anchorias.com |
| Andersen Construction Company | www.andersen-const.com |
| Andersen Structures ASI | www.andersen-const.com |
| Apollo Sheet Metal | www.ascsmech.com |
| Arctic Sheet Metal | www.arcticsheetmetal.com |
| AGC OR Columbia Chapter | www.agc-oregon.org |
| Benson Global | www.bensonglobal.com |
| BMWC | www.mbwc.biz |
| Boyter Brothers | www.boyterbrothers.com |
| Brown & Brown Insurance | www.bbnw.com |
| BSI Group | www.bsigroup.com |
| Burns & McDonnell | www.burnsmcd.com |
| Butterfield Testing Solutions | www.butterfieldtestingsolutions.com |
| CAL PORTLAND | www.calportland.com |
| Capital Electric | www.cepdx.com |
| Capital Safety | |
| Charter Mechanical | www.chartermechanical.com |
| Cochran | www.cochraninc.com |
| Coffman Excavation | www.coffmanteam.com |
| Convergint | www.convergint.com |
| Cosco Fire Protection | www.coscofire.com |
| DeaMor Associates | www.deamor.com |
| Dynalectric Company | www.dyna-oregon.com |
| EC Electric | www.ecpowerslife.com |
| Flynn Companies | www.flynncompanies.com |
| Fortis Construction | www.fortisconstruction.com |
| Fred Shearer & Sons | www.fredshearer.com |
| GCCA | www.nwcarpenters.org |
| General Sheet Metal | www.gsmw.com |
| GEW LLC | www.gew-llc.com |
| Greenberry | www.greenberry.com |
| Harder Mechanical | www.hardermech.com |
| Hardy Lean Solutions | www.hardylifts.com |
| Hilti | www.hilti.com |
| Hoffman Construction Company | www.hoffmancorp.com |
| Howard S. Wright | www.hswc.com |
| Hudson Bay Insualation | www.hudsonbayins.com |
| Humanus | www.humanus-solutions.com |
| IBEW LU 48 | www.ibew48.com |
| Injure Proof LLC | www.injureproof.com |
| Inline Commercial Construction | www.inline-cc.com |
| Intel | www.intel.com |
| Interior Technologies | www.interior-tech.com |
| Jacobs | www.jacobs.com |
| JE Dunn NW | www.jedunn.com |
| JH Kelly | www.jhkelly.com |
| K Communications | www.natzel.net |
| Karm Safety | www.karmsafetysolutions.com |
| Kirby Nagelhout Construction | www.kirbynagelhout.com |
| Lease Crutcher Lewis | www.lewisbuilds.com |
| Liberty Mutual | www.libertymutual.com |
| Mallory Safety & Supply | www.mallory.com |
| McKinstry Company | www.mckinstry.com |
| Mill Plain Electric | www.mp-electric.com |
| Mortenson Construction | www.mortenson.com |
| National Safety | www.nationalsafetyinc.com |
| NECA Oregon Columbia Chapter | www.orecolneca.org |
| NECA-IBEW Training Center | www.nietc.org |
| NessCampbell Crane | www.nessandcampbell.com |
| Northwest Engineering Services | www.nwesi.com |
| Northwest Scaffold Service | www.northwestscaffold.com |
| NWUCA | www.nwuca.com |
| OEG | www.oregon-electric.com |
| Omega Morgan | www.omegamorgan.com |
| The Oregon Institute of Occupational Health Sciences | www.ohsu.edu |
| OR LU#1 Brick, Tile, Terrazo Union | www.bac1or.org |
| Oregon Tradeswomen | www.tradeswomen.net |
| P & C Construction | www.builtbypandc.com |
| PAE Engineers | www.pae-engineers.com |
| Performance Contracting, Inc. | www.pcg.com |
| Perlo Construction | www.perlo.biz |
| Plumbing & Mechanical Contractors Assn | www.pmcaoregon.com |
| Port of Portland | www.portofportland.com |
| Professional Minority Group | www.pmgasbestos.com |
| Propel Insurance | www.propelinsurance.com |
| Quality Plus Services | www.qpsisbest.com |
| Refa Erection | www.refainc.com |
| Rosendin Electric | www.rosendin.com |
| SAIF | www.saif.com |
| Sheet Metal & Air Conditioning Contractors Assn | www.smacna-columbia.org |
| Signatory Painting Contractors Assn | www.spco.org |
| Skanska USA | www.skanska.com |
| Snyder Roofing Company | www.snyder-builds.com |
| Spears Construction Supply | www.spearsonline.com |
| SSOE Group | www.ssoe.com |
| Star Rentals | www.starrentals.com |
| Stoner Electric | www.stonergroup.com |
| Streimer Sheet Metal Works | www.streimer.com |
| Summit Construction | www.summitcontractingllc.com |
| Southland Industries | southlandind.com |
| The Harver Co | www.harverco.com |
| Tice Electric Company | www.ticeelectric.com |
| Trade Tool Supply | www.tradetoolsupply.com |
| Turner Construction Company | www.tcco.com |
| US Test & Balance Corporation | www.getbalanced.com |
| USI | www.usi.biz |
| Western Partitions | www.westernpartitions.com |
| Whitaker/Ellis | whitakerellis.com |