| Department of Transportation, Division of Procurement and Contracts | San Diego | 6410 |
| City of Los Angeles Bureau of Engineering | Los Angeles | 6012 |
| City of Los Angeles/ Department of Recreation and Parks | Los Angeles | 5825 |
| California Department of Transportation (Caltrans) | Los Angeles | 4711 |
| County of Orange/OC Public Works | Orange | 4654 |
| County of Santa Barbara General Services, Procurement Services | Santa Barbara | 4572 |
| City of San Diego | San Diego | 4455 |
| Val Verde Unified School District | Riverside | 3392 |
| County of Ventura GSA | Ventura | 3282 |
| Bakersfield City School District1 | Kern | 3125 |
| University of California Santa Cruz | Santa Cruz | 2995 |
| Superior Court of California, County of Los Angeles | Los Angeles | 2832 |
| University of CA-Berkeley | Alameda | 2728 |
| UC San Diego | San Diego | 2655 |
| Garden Grove Unified School District | Orange | 2482 |
| Visalia Unified School District | Tulare | 2273 |
| Cal Poly State University, San Luis Obispo | San Luis Obispo | 2197 |
| Alameda Health System (AHS) | Alameda | 2190 |
| City of Santa Barbara - Purchasing | Santa Barbara | 2184 |
| University of California, San Diego | San Diego | 2170 |
| North Orange County Community College District | Orange | 2124 |
| San Diego Unified School District | San Diego | 2108 |
| University of California - Irvine | — | 2095 |
| Redlands Unified School District | San Bernardino | 2059 |
| San Joaquin County - Purchasing & Support Services | San Joaquin | 2057 |
| ABC Unified School District | Los Angeles | 2044 |
| City of Irvine | Orange | 2036 |
| State of California Department of Transportation Office Engineers | — | 2014 |
| County of Kern - Public Works | Kern | 2002 |
| Eastern Municipal Water District - Purchasing | Riverside | 1999 |
| City of Chula Vista | San Diego | 1988 |
| Santa Clara Unified School District | Santa Clara | 1987 |
| Irvine Ranch Water District 3 | — | 1974 |
| Fresno Unified School District | Fresno | 1961 |
| Lake Elsinore Unified School District | Riverside | 1906 |
| San Francisco State University 3 | — | 1883 |
| County of San Luis Obispo | San Luis Obispo | 1855 |
| Judicial Council of California - (PUB WORKS) | Los Angeles | 1820 |
| DOWNEY UNIFIED SCHOOL DISTRICT | Los Angeles | 1771 |
| Palo Alto Unified School District | Santa Clara | 1722 |
| Sanitation Districts of Los Angeles County | Los Angeles | 1686 |
| The Metropolitan Water District of Southern California | Los Angeles | 1685 |
| Newport-Mesa Unified School District | Orange | 1681 |
| Corona-Norco Unified School District | Riverside | 1676 |
| Coast Community College District - (PUB WORKS) | Orange | 1659 |
| Lodi Unified School District | San Joaquin | 1639 |
| County of Los Angeles Department of Public Works | Los Angeles | 1616 |
| Capistrano Unified School District | Orange | 1610 |
| County of Sacramento | Sacramento | 1573 |
| UC DAVIS MEDICAL CENTER | Sacramento | 1562 |
| Department of General Services | Sacramento | 1541 |
| San Bernardino County - DPW Trans. & Flood | San Bernardino | 1529 |
| Palm Springs Unified School District | Riverside | 1508 |
| County of Kern - Purchasing | Kern | 1489 |
| Placentia Yorba Linda Unified School Distrct | — | 1487 |
| Clovis Unified School District | Fresno | 1476 |
| Imperial Irrigation District | Imperial | 1473 |
| West Contra Costa Unified School District | Contra Costa | 1458 |
| City of San Diego Public Works Contracts | San Diego | 1449 |
| City of Mountain View | Santa Clara | 1439 |
| City of Santa Clarita | Los Angeles | 1411 |
| San Ramon Valley Unified School District | Contra Costa | 1410 |
| California State University, Fullerton | Orange | 1400 |
| West Valley-Mission Community College District | Santa Clara | 1393 |
| San Diego State University | San Diego | 1392 |
| Stanislaus County GSA Purchasing | Stanislaus | 1390 |
| Chino Valley Unified School District | San Bernardino | 1388 |
| Kern Community College District | Kern | 1381 |
| City of San Diego Purchasing & Contracting | — | 1342 |
| Simi Valley Unified School District | Ventura | 1338 |
| Pomona Unified School District | Los Angeles | 1333 |
| Santa Ana Unified School District | Orange | 1317 |
| Rosedale Union School District | Kern | 1297 |
| Montebello Unified School District | Los Angeles | 1293 |
| Orange County Sanitation District | Orange | 1282 |
| City of Corona - 01 | Riverside | 1271 |
| city of carlsbad or carlsbad municipal water district | San Diego | 1267 |
| County of Santa Barbara Purchasing Jo Dean Johnson | — | 1258 |
| Glendale Unified School District | Los Angeles | 1249 |
| County of San Bernardino - Project Management Division | San Bernardino | 1238 |
| Los Angeles Community College District | Los Angeles | 1235 |
| Panama-Buena Vista Union School District | Kern | 1226 |
| Department of Transportation - DPAC | San Diego | 1218 |
| Los Rios Community College District | Sacramento | 1215 |
| San Dieguito Union High School District | San Diego | 1198 |
| Pasadena Area Community College District | Los Angeles | 1194 |
| Stanislaus County Office of Education | Stanislaus | 1194 |
| Foothill-De Anza Community College District | Santa Clara | 1181 |
| City of Bakersfield | Kern | 1170 |
| Long Beach Unified School District | Los Angeles | 1145 |
| Kern High School District | Kern | 1119 |
| Grossmont Union High School District 1 | San Diego | 1108 |
| City of San Jose, Purchasing Dept | Santa Clara | 1101 |
| Sacramento Area Sewer District | Sacramento | 1098 |
| UC Berkeley Facility Services | Alameda | 1085 |
| Modesto City Schools | Stanislaus | 1071 |
| City of Santa Ana | Orange | 1068 |
| TORRANCE UNIFIED SCHOOL DISTRICT | Los Angeles | 1063 |
| san mateo county community college district | San Mateo | 1062 |
| California Highway Patrol - (PUB WORKS) | San Diego | 1061 |
| City of Burbank | Los Angeles | 1041 |
| Turlock Irrigation District | Stanislaus | 1040 |
| City of San Jose | Santa Clara | 1028 |
| City of Los Angeles, Department of General Services, Building Maintenance Divisi | Los Angeles | 1014 |
| University of California, San Diego Contracts | — | 1006 |
| Pajaro Valley Unified School District | Santa Cruz | 987 |
| Mt. San Antonio College | Los Angeles | 968 |
| East Side Union High School District | Santa Clara | 957 |
| Fullerton Joint Union High School District | Orange | 956 |
| Tracy Unified School District | San Joaquin | 942 |
| Rialto Unified School District | San Bernardino | 931 |
| California State University, Los Angeles | Los Angeles | 920 |
| Desert Sands USD | Riverside | 918 |
| Riverside Unified School District - Purchasing Department | Riverside | 916 |
| Pasadena Unified School District | Los Angeles | 914 |
| City of Fullerton | Orange | 909 |
| Contra Costa Community College District | Contra Costa | 906 |
| Inland Empire Utilities Agency | San Bernardino | 904 |
| San Mateo Union High School District | San Mateo | 901 |
| Contracting Services, University of California, Davis | Yolo | 898 |
| Ontario-Montclair School District | San Bernardino | 888 |
| University of California Santa Barbara | Santa Barbara | 887 |
| Lancaster School District | — | 885 |
| Butte-Glenn Community College | Butte | 883 |
| UCSD-Central | — | 878 |
| City and County of San Francisco - Dept. of Public Works | San Francisco | 878 |
| Napa Valley Unified School District | Napa | 877 |
| Riverside Community College District | Riverside | 875 |
| Orange Unified School District | Orange | 871 |
| San Diego Community College District | San Diego | 869 |
| Santa Rosa City Schools | Sonoma | 865 |
| Liberty Union High School District | Contra Costa | 858 |
| Saddleback Valley Unified School District | Orange | 856 |
| City of Camarillo | Ventura | 850 |
| County of Tulare | Tulare | 846 |
| Lucia Mar Unified School district | San Luis Obispo | 843 |
| University of California Berkeley | Alameda | 841 |
| Fremont Union High School District | Santa Clara | 840 |
| Palmdale School District | Los Angeles | 837 |
| Kern High School District 2 | — | 833 |
| California State University, San Bernardino | San Bernardino | 830 |
| Los Angeles Unified School District Facilities Construction Contracts | Los Angeles | 828 |
| University of California, Los Angeles | Los Angeles | 824 |
| Antelope Valley Union High School District | Los Angeles | 821 |
| City of Anaheim Purchasing | Orange | 817 |
| Central Unified School District | Fresno | 815 |
| Poway Unified School District | San Diego | 813 |
| City of Fresno | Fresno | 803 |
| Moreno Valley Unified School District | Riverside | 798 |
| Oceanside Unified School District | San Diego | 790 |
| Porterville Unified School District | Tulare | 789 |
| Sonoma County Junior College District dba Santa Rosa Junior College | Sonoma | 782 |
| Rowland Unified School District | Los Angeles | 779 |
| Greenfield Union School District | Kern | 777 |
| Sacramento City Unified School District | Sacramento | 772 |
| Chula Vista Elementary School District | San Diego | 767 |
| Sequoia Union High School District | San Mateo | 761 |
| Kern County Superintendent of Schools | Kern | 755 |
| San Marcos Unified School District | San Diego | 753 |
| San Francisco Unified School District | San Francisco | 753 |
| Fontana Unified School District | San Bernardino | 748 |
| City of Long Beach | Los Angeles | 739 |
| San Joaquin County Office of Education | San Joaquin | 735 |
| South Orange County Community College District | Orange | 733 |
| Elk Grove Unified School District | Sacramento | 733 |
| City of Visalia - Purchasing | Tulare | 728 |
| Riverside County Office of Education | Riverside | 725 |
| Cabrillo College | Santa Cruz | 722 |
| University of California - San Diego | San Diego | 719 |
| San Juan Unified School District | Sacramento | 714 |
| Murrieta Valley Unified School district | Riverside | 712 |
| Sweetwater Union High School District | San Diego | 712 |
| Huntington Beach Union High School District | Orange | 711 |
| UCSF - Finance Service Center | — | 708 |
| City of Sunnyvale | Santa Clara | 706 |
| Contra Costa County Public Works Department | Contra Costa | 705 |
| NORWALK-LA MIRADA UNIFIED SCHOOL DISTRICT | Los Angeles | 705 |
| California State University Bakersfield | Kern | 705 |
| Mt. San Antonio College. | — | 702 |
| Palomar Community College District | San Diego | 701 |
| Livermore Valley Joint Unified School District | Alameda | 698 |
| Marysville Joint Unified School District - Facilities Department | Yuba | 697 |
| City of Dana Point | Orange | 696 |
| Chaffey Joint Union High School District | San Bernardino | 695 |
| Western Municipal Water District | Riverside | 695 |
| Saugus Union School District | Los Angeles | 694 |
| El Monte Union High School District | Los Angeles | 693 |
| County of Marin Department of Public Works | Marin | 685 |
| County Of Kern - Construction Services | — | 685 |
| City of Lancaster | Los Angeles | 681 |
| City of LA GSD Construction Forces Division | — | 678 |
| Sanger Unified School District | Fresno | 676 |
| Anaheim Union High School District | — | 676 |
| City of San Mateo | San Mateo | 675 |
| CAJON VALLEY UNION SCHOOL DISTRICT | San Diego | 673 |
| Vista Unified School District | San Diego | 669 |
| William S. Hart Union High School District | Los Angeles | 666 |
| Hacienda La Puente Unified School District | Los Angeles | 660 |
| Sierra Joint Community College District | Placer | 655 |
| City of Thousand Oaks | Ventura | 653 |
| City of Victorville | San Bernardino | 641 |
| City and County of San Francisco Recreation and Park Department | San Francisco | 640 |
| University of California Berkeley -SCM | Alameda | 639 |
| Monterey Peninsula Unified School District | Monterey | 638 |
| City of Sacramento Public Works | Sacramento | 635 |
| UC Davis Health System - Facilities Design & Construction | Sacramento | 632 |
| County of Santa Cruz DPW | Santa Cruz | 628 |
| Covina-Valley Unified School District | Los Angeles | 628 |
| County of Monterey Public Works, Facilities and Parks | Monterey | 625 |
| CAL FIRE BSO | Fresno | 625 |
| Center Joint Unified School District | Sacramento | 624 |
| Burbank Unified School District | Los Angeles | 623 |
| Oakland Unified School District | Alameda | 623 |
| Rancho Santiago Community College District | Orange | 623 |
| East Bay Municipal Utility District - Purchasing | Alameda | 619 |
| Ventura Unified School District | Ventura | 617 |
| Humboldt State University | — | 616 |
| City of Santa Cruz - Public Works Department - Wastewater Treatment Facility | Santa Cruz | 615 |
| Temecula Valley Unified School District | Riverside | 613 |
| City of Stockton Public Works | — | 610 |
| San Luis Coastal Unified School District | San Luis Obispo | 601 |
| El Dorado Irrigation District | El Dorado | 598 |
| Rancho Santiago Community College District-Purchasing Dept | Orange | 598 |
| City of Escondido - Department of Public Works | San Diego | 597 |
| Jurupa Unified School District | Riverside | 597 |
| County of Ventura | Ventura | 594 |
| Las Virgenes Unified School District | Los Angeles | 592 |
| Northern California Power Agency | Placer | 591 |
| University of California Riverside - Business & Financial Services | Riverside | 590 |
| Rancho California Water District | Riverside | 590 |
| City of Fremont | Alameda | 589 |
| City of Newport Beach | Orange | 587 |
| San Jose Unified School District | Santa Clara | 587 |
| Fresno County Facility Services | Fresno | 583 |
| San Mateo-Foster City School District | — | 582 |
| Stockton Unified School District. | San Joaquin | 581 |
| Santa Barbara Unified School District | Santa Barbara | 580 |
| Regents of the University of California | — | 579 |
| Folsom Cordova Unified School District | Sacramento | 579 |
| County of Sonoma | Sonoma | 577 |
| Folsom Cordova USD - Maintenance Department | Sacramento | 576 |
| Ventura County Community College District | Ventura | 574 |
| West Covina Unified School District | Los Angeles | 574 |
| Long Beach City College Community District | Los Angeles | 573 |
| UCLA Campus Purchasing | Los Angeles | 569 |
| San Bernardino Community College District | San Bernardino | 568 |
| Santa Cruz City Schools | Santa Cruz | 568 |
| Imperial County Office of Education | Imperial | 566 |
| County of Solano - Department of General Services | Solano | 566 |
| Goleta Water District | Santa Barbara | 564 |
| Paramount Unified School District | Los Angeles | 563 |
| City of Temecula | Riverside | 563 |
| City of San Marcos | San Diego | 562 |
| Merced County Public Works | Merced | 561 |
| Merced City School DIstrict - Maintenance/Operations/Grounds | Merced | 560 |
| Twin Rivers Unified School District eff 6-18-18 | — | 560 |
| City of Monterey | Monterey | 560 |
| IRVINE UNIFIED SCHOOL DISTRICT M&O | Orange | 556 |
| Pasadena Center Operating Company | Los Angeles | 554 |
| Whittier Union High School District 1 | Los Angeles | 553 |
| UCLA Asset Management Department | Los Angeles | 552 |
| Delano Union School District | Kern | 552 |
| San Jacinto Unified School District | Riverside | 552 |
| Kings Canyon Unified School District | Fresno | 551 |
| San Diego County Regional Airport Authority | San Diego | 550 |
| University of California Merced | Merced | 549 |
| County of El Dorado | El Dorado | 548 |
| Chico Unified School District | Butte | 548 |
| San Luis Obispo County Community College District | San Luis Obispo | 548 |
| Orange County Fire Authority | Orange | 546 |
| City of Oxnard | Ventura | 545 |
| Hemet Unified School District-2 | Riverside | 544 |
| San Jose/Evergreen Community College District | — | 544 |
| Fullerton School District | Orange | 543 |
| City of Walnut Creek | Contra Costa | 542 |
| UCB - SCM | — | 539 |
| Santa Maria Bonita School District | Santa Barbara | 533 |
| Santa Monica-Malibu Unified School District - Procurement | Los Angeles | 529 |
| City of Redding | Shasta | 528 |
| City of Poway | San Diego | 527 |
| Etiwanda School District | San Bernardino | 527 |
| San Diego Association of Governments | San Diego | 527 |
| San Joaquin County Public Works | San Joaquin | 525 |
| UCSF Medical Center | San Francisco | 525 |
| San Diego Metropolitan Transit System | San Diego | 524 |
| Placentia Yorba Linda Unified School District | — | 522 |
| OXNARD UNION HIGH SCHOOL DISTRICT | Ventura | 518 |
| Tustin Unified School District | Orange | 518 |
| San Francisco Public Utilities Commission | — | 517 |
| Oak Grove School District | Santa Clara | 515 |
| Mountain View Elementary School District | Los Angeles | 514 |
| Coachella Valley Unified School District- Facilities and Maintenance | Riverside | 513 |
| State of California Military Department | San Luis Obispo | 508 |
| City of Mission Viejo | Orange | 508 |
| Tahoe Truckee Unified School District | Placer | 505 |
| Los Angeles Unified School District - Facilities Contracts | Los Angeles | 504 |
| National School District | San Diego | 504 |
| California State University, Long Beach | Los Angeles | 503 |
| Milpitas Unified School District | Santa Clara | 502 |
| Coachella Valley Water District | Riverside | 502 |
