“We guarantee you will pass your crane operator certification written tests after our 2 day class or your next class with us is free.”
| 49th Parallel Group, Inc. |
| A-1 Crane San Diego |
| A-Line Crane |
| A & A Concrete Supply, Inc. |
| A & A Sign & Crane, Inc. |
| A & W Crane |
| A.C. Houston Lumber Company |
| A.W. Fowler Construction |
| AA Production Services, Inc. - Princeton |
| AA Production Services, Inc. - Woodland |
| ABB, Inc. |
| ABC Supply Co. Inc. - El Cajon |
| ABC Supply Co. Inc. - Gardena |
| ABC Supply Co. Inc. - Monrovia |
| ABC Supply Co. Inc. - Ontario |
| ABC Supply Co. Inc. - Santa Ana |
| Advanced Boring and Microtunneling (ABM) |
| Aera Energy LLC |
| Aerojet |
| AES Wind Generation |
| Affholder, Inc. |
| Air Condidtioning Design |
| Airstreams Maintenance Corp. |
| Akima Logistics Services |
| Alameda Power & Telecom |
| All American Asphalt |
| All Terrain, Inc. |
| Alliance Roofing |
| Allied Crane Service |
| Almanor Dock Supply |
| Alpine Steel, LLC |
| Amador Crane Service |
| American Ironworks Manufacturing, Inc. |
| Ameron International |
| Ampac Fine Chemicals |
| Anderson Pacific Eng. Const., Inc. |
| Anderson Pump Company, Inc. |
| Andrew Systems, Inc. |
| Angle Concrete, LLC |
| ASR Constructors, Inc. |
| Associated Ready Mix |
| Atlas Crane Service |
| Ava K Early |
| Ayala Boring, Inc. |
| AZ Crane |
| B & D Construction |
| B & W Precast Constructors |
| BAE Systems San Diego Ship Repair |
| Baldi Bros, Inc. |
| Barbour Well Surveying Corporation |
| Bay Welders, Inc. |
| BE&K Construction Company |
| Bellis Steel Company, Inc. |
| Bentancourt Bros. Construction Inc. |
| Beryl Lockhart Enterprise |
| Berylwood Tree Farm |
| Best Drilling and Pump Inc. |
| Best Roofing & Waterproofing, Inc. |
| Black Rock City - DPW |
| Blue's Roofing Company |
| Bob's Towing |
| Boeing Company |
| Boeing Company, AK |
| Bold Image Sign & Crane |
| Bresnyan Carriers |
| Brewer, David |
| Brickey Engineering Construction, Inc. |
| Brown, Neal |
| Bueno, Christopher |
| Builders Choice, Inc. |
| Bunyon Bros Tree Service |
| C. & C. Crane |
| Caithness Operating Company, LLC |
| Cal Sierra Development |
| California Highway Patrol |
| California Portland Cement Co. |
| Caltech Employees / Jason Scates |
| Canyon Crane Service |
| Carl Kjer and Sons |
| Catalina Pacific Concrete |
| Cemex, Inc. |
| Censource |
| Centimark Corp. |
| Central Coast Water Authority |
| Central Pipe Mechanical, Inc. |
| Chiller Services Rigging & Demo |
| Chowchilla Construction, Inc. |
| Chowchilla Water District |
| Christian Refenfuss Masonry, Inc. |
| Churchill Jr., Jay |
| City of Burbank |
| City of Burbank - Water and Power |
| City of Davis |
| City of Livermore |
| City of Los Angeles, Bureau of Sanitation |
| City of Monterey - Harbormaster |
| City of Monterey - Street Division |
| City of Newport Beach |
| City of Oceanside |
| City of Palo Alto |
| City of Poway |
| City of Sacramento - Dpt. of Transport. |
| City of Sacramento - Tree Services |
| City of Sacramento DOGS-Mainten. Services |
| City of Sacramento DOU-Plant Services |
| City of Sacramento DOU-Water Distribution |
| City of Santa Rosa |
| City of Santa Rosa Utilities Department |
| Clyde G. Steagall, Inc. |
| Coast Machinery Movers |
| Code 3 Services |
| Collins Electrical Company Inc., Sac |
| Collins Electrical Company, Inc. Stockton |
| Comet Electric, Inc. |
| Compu-Tech Lumber Products, Inc. |
| ConocoPhillips Company |
| Contra Costa County |
| Corey Delta |
| Coso Operating Company LLC |
| County of Humboldt |
| County of Los Angeles, I.S.D. |
| County of Monterey |
| County Sanitation Districts of LA county |
| CR Briggs Corporation |
| CR Transfer |
| Crainco |
| Crane Mills |
| Crane Rental Service, Inc. |
| Crane School, Inc. |
| Crosno Construction, Inc. |
| Crown Engineering & Construction |
| CST Environmental |
| Cunningham-Davis, LLC |
| CW Warren Framing, Inc. |
| D & D Crane Service |
| Dalton Trucking, Inc. |
| Davey Large Tree Moving |
| Davis, Robert |
| DC Design and Construction |
| Department of Rehabilitation |
| Desert Crane Service, Inc. |
| DeYoung Power Systems, Inc. |
| Diamond Truss Inc. |
| Dicalite Minerals Corp. |
| Disneyland |
| Dixie Box & Crating |
| Dockside Machine & Ship Repair |
| Dole Packaged Frozen Foods, Inc. |
| Doug Wilson Construction |
| Duff, James R. |
| Duncan, David |
| Dura Crane |
| Durham Pump |
| Dutra Dredging Company |
| Dutra Group |
| DYK Incorporated |
| DynaPump, Inc. |
| E.E. Electric, Inc. |
| Eagle Peak Rock & Paving |
| Easy Street Crane |
| Eaton Drilling Co., Inc. |
| El Dorado Truss Co., Inc. |
| El Toro Water District |
| Eli Shivhon Crane Services, Inc. |
| Elijah Electric, Inc. |
| Ellis & Ellis Signs |
| Energy Unlimited, Inc. |
| enXco |
| Erickson Building Components |
| Escobedo, Miguel |
| Eureka Ready Mix |
| Evergreen Oil, Inc. |
| Evergreen Pulp |
| Fallbrook Public Utility District |
| Fallen Leaf Tree Service, Inc. |
| Farwest Safety, Inc. |
| Felix, Paul |
| Fintech Precast, Inc. |
| FMR Services, Inc. |
| Forman Construction |
| Fortuna Iron Corporation |
| Foss Maritime Company |
| Foster Wheeler Martinez |
| Four C's Service |
| FPL Energy Operating Services, Inc. |
| Franklin Construction, Inc. |
| Gateway Pacific Contractors, Inc. |
| GATX Rail |
| Gavilan Crane & Rigging Svc. |
| General Truss Co., Inc. |
| Get Hooked Crane Service |
| Gilbeau Crane Service |
| GR Underground, Inc. |
| Grace Construction Co. Inc. |
| Granite Construction Company |
| Gray, Robert |
| Green Set, Inc. |
| Gresham, Nancy |
| Grinnell, William |
| Grossen Company |
| Gruntkosky, Jason |
| GSI Western, Inc. |
| Haddick's Towing, Inc. |
| Halliburton |
| Hansen Maintence Services, Inc. |
| Hanson Truss, Inc. |
| Harvey's Trench Shoring, Inc. |
| HDD Company, Inc. |
| HDD Company, Inc./Orangevale |
| Helix Water District |
| Herca Telecomm Services Inc. |
| Hidden Valley Pump Systems, Inc. |
| High Country Crane |
| High Desert Power Project, LLC |
| Hilltop Ranch, Inc. |
| Homewood Truss |
| Hot Line Construction Inc. - Brentwood |
| Hot Line Construction, Inc. - Ventura |
| Howk Systems |
| Hugo Neu-Proler Company |
| InfraSource Underground Services |
| Inland Concrete Ent. Inc. |
| Inland Valley Construction Company, Inc. |
| Inter-Mountain Truss & Girder, Inc. |
| ITT Industries |
| Iverson, Michael |
| J & D Fabricating and Repair, Inc. |
| J.C.S. General Engineering, Inc. |
| J.D. Group, Inc. |
| J.R. Simplot Company |
| James H. Cowan Associates, Inc. |
| Jenkins, Jonathan Worrall |
| Jensen Precast - Fairfield |
| Jensen Precast - Fontana |
| Jensen Precast - Los Molinos |
| Jensen Precast - North Las Vegas |
| Jensen Precast - Orland |
| Jensen Precast - Sacramento |
| Jensen Precast - Sparks |
| Jim Dobbas, Inc. |
| JMB Construction |
| John Prothero's Construction |
| Judge Netting, Inc. AZ |
| Judge Netting, Inc. CA |
| K S Mechanical, Inc. |
| K.V. Welding |
| Kahoonei, Gary |
| Kawasaki Motors Corp., U.S.A |
| Kay and Associates, Inc. |
| Keen Transport, Inc. |
| Kernen Construction |
| Kevin J Barry Ironworks |
| Knauf Insulation GmbH Plant 4 |
| Knott's Berry Farm |
| Kodiak Roofing & Waterproofing Co.Lincoln |
| Kodiak Roofing & Waterproofing Co.Loomis |
| KRC Aggregate, Inc. |
| Krig, Mark |
| L.D. Strobel Co. Inc. |
| Laborers Training School |
| LAC-Dept. of Parks & Recreation |
| Landsburg Enterprises |
| Lang Exploratory Drilling |
| Larranaga Construction. Inc. |
| Lassen County R |
| Laurence-Hovenier, Inc. |
| Lazzarevich, Tyler |
| Leon Krous Drilling |
| Lewis Tree Service, Inc. |
| LNG Sign Service |
| Lodi Irrigation |
| Logan Crane Service |
| Longfellow Lumber Co. Inc. |
| Loomis Metal, Inc. |
| Lopez, Jose |
| Lori & Company Inc. |
| Los Angeles County Agr. Com./Wts. & Meas. |
| Lustre Enterprises |
| M-3 Construction |
| M.A. Mortenson Company |
| Madison Industries |
| Madonna, Inc./Madonna Properties II, LLC |
| Madsen Roof Company, Inc. |
| Magco Drilling Inc. |
| Mahaffey Companies |
| Maintenance Turnaround Services |
| Mammoth Pacific, L.P. |
| MarBorg Industries |
| Marketshare, Inc. |
| MarTech Mechanical Analysis/Repair, Inc. |
| Matrix Service, Inc. |
| Matteson, Brett |
| MBARI |
| McMurray & Sons |
| MCWRA |
| MDS Construction |
| Meek's Lumber & Hardware |
| Merco, Inc. |
| Metro Builders & Engineers Group Ltd. |
| Mid-State Concrete Products |
|
| Mike Walker Lumber Co., Inc. |
| Miller's Custom Work, Inc. |
| Mirant |
| Modesto Irrigation District |
| Molek, Robert |
| Monterey County Public Works |
| Moore Electrical Contracting, Inc. |
| Moss Lumber Co. |
| Mountain Pride Construction, Inc. |
| MRWPCA |
| Mt. Lincoln Construction, Inc. |
| N.J. McCutchen, Inc. |
| National Oilwell Varco |
| Neil Feerick Hauling |
| Nevada BKD Corp. |
| Nevada Irrigation District |
| Norris Steel Fabrication, Inc. |
| North American Substation Services |
| North Coast Fabricators |
| North Star Minerals, Inc. |
| North State Electric & Pump |
| Northrop Grumman |
| Northrop Grumman Corporation |
| Northstar-at-Tahoe |
| Northstar Landcare, Inc. |
| O.C. Fleet Service / Orange Courier |
| Olson Precast Company |
| Omya California, Inc. |
| Operating Engineers Local Union No. 3 |
| Ormat Nevada, Inc. |
| Outback Materials |
| P & F Metals |
| Pacific Continental Truss |
| Pacific Oroville Power |
| Pacific Precast Corporation |
| Pacific Refrigeration Inc. |
| Pacific Ship Repair & Fabrication, Inc. |
| Pacific Supply Co. |
| Pacific Union College |
| Padilla's Welding & Construction |
| Padre Dam Municipal Water District |
| Pat Scott Masonry |
| Pennigton, Randy |
| Penny's Concrete, Inc. |
| PG & E - Antioch |
| PG & E - Concord |
| PG & E - Daly City |
| PG & E - Davis |
| PG & E - Hayward |
| PG & E - Hayward (2) |
| PG & E - Loomis |
| PG & E - Merced |
| PG & E - Napa |
| PG & E - Newman |
| PG & E - Oakland |
| PG & E - Petaluma |
| PG & E - Richmond |
| PG & E - San Carlos |
| PG & E - Vacaville |
| Piedmont Lumber |
| Pipe Jacking Unlimited |
| Placerville Truss, Inc. |
| Porter Cal-Western |
| PowerWorks LLC |
| Precast Works, Inc. |
| Precision Builders |
| Premier Roofing, Inc. |
| Prime Power & Communicatrions, LLC |
| Pro-Cast Products, Inc. |
| Production Framing Systems, Inc. |
| Professional Tree Care Company |
| Quality Reinforcing, Inc. |
| R & B Reinforcing Steel Corp. |
| Rain For Rent |
| Ramirez, Edna |
| Rancho California Water District |
| Ray Toney & Associates |
| RCS, Inc. |
| Redding Crane Service |
| Reed International |
| Rees, Johnny |
| Reeve Trucking Co. Inc. |
| Reiman Corp. |
| Republic Electric |
| Republic ITS |
| Resource Development Company |
| Riggs, David |
| Ripon Manufacturing Co., Inc. |
| Robertson's |
| Rockford Corporation-Yuba City |
| Rockford Corporation - Rio Vista |
| Roofers Mart of Southern California |
| Roofing Supply Group, Inc. |
| Russell's Crane Service, Inc. |
| Sacramento Municipal Utility District-DH |
| Sacramento Municipal Utility District-JG |
| Safe Crane Systems |
| Saint - Gobain Proppants |
| Salt River Construction Corp. |
| San Diego County Water Authority |
| San Diego Workforce Partnership |
| Santa Cruz Port District |
| Sara Services |
| SBIW, Inc. |
| Scholder, David |
| Schroder & Son, Inc. |
| Scott River Pump & Irrigation |
| Scully Steel Construction, LLC |
| SCW Contracting Corporation |
| SDS Welding, LLC |
| Sea World of California |
| Senna Tree Company |
| Sensible Safety, Inc. |
| SG Wholesale Roofing Supplies, Inc. |
| Shell Los Angeles Rafinery |
| SHELL Martinez Refinery |
| Siemens Energy and Automation |
| Sierra Pine LTD |
| Sierra Pre-Bilt, Inc. |
| Signal Hill Petroleum, Inc. |
| Simon's Son Trucking |
| Simpson Timber Co. |
| Smith Crane and Rigging |
| Snows Oil Field Service |
| Sonnikson and Stordahl Construction, Inc. |
| South Bay Sand Blasting & Tank Cleaning |
| Southbay Boat Yard |
| Southern Cal. Underground Contr., Inc. |
| Southwest Construction Co., Inc. |
| Spar Tree Forestry, Inc. |
| Specialty Construction, Inc. |
| Spencer, Lorenzo |
| Spense, Michael |
| Spiess Const. Co. Inc |
| SRCSD |
| SRI International |
| Starcon International, Inc. |
| State Compensation Insurance/Kordecki,Dus |
| State Compensation Insurance/Swan,Wesley |
| Steiny and Company, Inc. |
| Steve Morris Logging & Contracting |
| Stevens Creek Quarry, Inc. |
| Stewart Engineering Inc. |
| Stone Roofing Company, Inc. |
| Structural Shotcrete Systems, Inc. |
| StructureCast |
| Superior Roofing |
| Syblon Reid General Contractors |
| T.L. Fabrications L.P. |
| Taft Construction Co. |
| Tanco Engineering, Inc. |
| Tenby Inc. |
| Terrazas Enterpises, LLC dba A-1 Welding |
| Thomason Mechanical Corp. |
| Timec - Carson |
| TIMEC Constructors - 125 Vallejo |
| TIMEC Constructors - 155 Vallejo |
| TL Pavlich Construction, Inc. |
| Traffic Solutions |
| Treemasters |
| TTR Substations, Inc. |
| Turner Trans-Lift |
| UCI Construction, Inc. |
| Underground Construction Co., Inc. |
| Unimin Corporation |
| Union Asphalt, Inc. |
| Unique Crane Services Inc. |
| United Pumping Service, Inc. |
| United Rentals Trench Safety |
| Universal Plant Services |
| University of California San Diego |
| USS-POSCO Industries |
| VA Tech |
| Valley Center Municipal Water District |
| Valley Crest Tree Company |
| Van Buskirk, Frank |
| Vasilj, Inc. |
| Ventura County Sheriff's Department |
| Ventura Crane, Inc. |
| Vietnam Veterans of San Diego |
| Villa Truss |
| Vulcan Steel Company |
| Ward, Alva |
| Warren E&P, Inc. |
| Waste Management |
| Water Heater Man, Inc. |
| Water Ways Distribution |
| Waterproofing Associates |
| Waukesha Electric Systems |
| Wes's Crane Service, Inc. |
| West Valley Construction Company, Inc. |
| Western Crane Service |
| Western General Construction |
| Western Slope Livery |
| Western States Contracting, Inc. |
| Western Water Constructors |
| WesTower Communications |
| Weyerhaeuser |
| Wheelabrator Shasta Energy Co. Inc. |
| Whillock Contracting, Inc. |
| Whitaker Contractors, Inc. |
| Whitewater Maintenance Corporation |
| Williams Lumber, Inc. |
| Willingham Crane Service |
| Willis Construction Company, Inc. |
| Wilson's Sanitary, Inc. |
| Wilson Construction |
| Wood Group Field Services, Inc. |
| Wright Brothers |
| Xerxes Corporation |
