Ace American Insurance Company — page 1 of 2
477 employers reported an insurance contract with Ace American Insurance Company for plan year 2024 (NAIC code 22667). Benefits most often on these contracts: Other (494), Health (23), Life insurance (5), Temporary disability (4), Prescription drug (2). Most employers in: California (76), New York (73), Massachusetts (29), Texas (26).
1 (2U, LLC…) · 2 (MOORE CAPITA…)
| Place | Employer | Active participants | Insurance contracts | Persons covered |
|---|---|---|---|---|
| Arlington, VA | 2U, LLC | 1,437 | 7 | 1,437 |
| Oak Brook, IL | A.M. CASTLE & CO. | 681 | 11 | 953 |
| Chicago, IL | A.T. KEARNEY, INC. | 1,106 | 13 | 1,106 |
| Wood Dale, IL | AAR CORP. | 4,398 | 13 | 3,794 |
| Abbott Park, IL | ABBOTT HEALTHCARE (PUERTO RICO) LTD. C/O ABBOTT LABORATORIES | 1,506 | 4 | 1,505 |
| Abbott Park, IL | ABBOTT LABORATORIES | 34,937 | 10 | 35,308 |
| Sugar Land, TX | ABM INDUSTRIES INCORPORATED | 22,132 | 33 | 7,150 |
| Coral Gables, FL | ACORN HEALTH | 1,600 | 7 | 24 |
| Conway, AR | ACOUSTIC, L.P. | 296 | 5 | 296 |
| Santa Clara, CA | ACTIAN CORPORATION | 237 | 4 | 237 |
| Santa Monica, CA | ACTIVISION BLIZZARD | 6,768 | 12 | 6,768 |
| New York, NY | ADENZA, INC. | 0 | 8 | 267 |
| Plymouth, MI | ADIENT US LLC | 6,883 | 6 | 6,883 |
| San Jose, CA | ADOBE INCORPORATED | 15,182 | 11 | 15,181 |
| New York, NY | ADVANCE FINANCE GROUP LLC | 170 | 5 | 166 |
| Raleigh, NC | ADVANCE STORES COMPANY, INC. | 64,726 | 20 | 64,726 |
| Milwaukee, WI | ADVOCATE AURORA HEALTH, INC. | 82,882 | 14 | 82,882 |
| Dallas, TX | AECOM | 18,555 | 45 | 17,500 |
| Washington, DC | AKIN GUMP STRAUSS HAUER & FELD LLP | 1,531 | 9 | 1,422 |
| Nashville, TN | AKZO NOBEL INC. | 2,012 | 11 | 2,012 |
| Tonawanda, NY | ALKEGEN, A UNIFRAX HOLDING COMPANY | 1,721 | 5 | 1,721 |
| Manchester, NH | ALLEGRO MICROSYSTEMS, LLC | 687 | 7 | 4,281 |
| Nashville, TN | ALLIANCEBERNSTEIN L.P. | 2,936 | 8 | 2,940 |
| New York, NY | ALPHASENSE, INC. | 682 | 5 | 673 |
| Long Island City, NY | ALTICE USA, INC. | 8,806 | 8 | 9,236 |
| Richmond, VA | ALTRIA CLIENT SERVICES LLC | 5,809 | 12 | 5,809 |
| Seattle, WA | AMAZON.COM SERVICES, LLC | 1,194,891 | 19 | 1,113,186 |
| Houston, TX | AMERICAN AIR LIQUIDE HOLDINGS INC | 2,920 | 14 | 3,194 |
| New York, NY | AMERICAN ARBITRATION ASSOCIATION | 706 | 4 | 627 |
| Reston, VA | AMERICAN COLLEGE OF RADIOLOGY, INC. | 510 | 6 | 510 |
| Leawood, KS | AMERICAN MULTI-CINEMA, INC. | 5,143 | 6 | 23,920 |
| Boston, MA | AMERICAN TOWER CORPORATION | 2,329 | 8 | 2,329 |
| King Of Prussia, PA | AMERIGAS PROPANE, INC. | 4,822 | 5 | 4,822 |
| Berwyn, PA | AMETEK, INC. | 8,113 | 7 | 8,113 |
| Carnegie, PA | AMPCO-PITTSBURGH CORPORATION | 917 | 10 | 260 |
| Wallingford, CT | AMPHENOL CORPORATION & AFFILIATED COMPANIES | 7,306 | 14 | 7,177 |
| Cambridge, MA | AMYLYX PHARMACEUTICALS, INC. | 324 | 5 | 324 |
| Greenwich, CT | APOLLO GLOBAL MANAGEMENT | 1,839 | 11 | 3,684 |
| San Francisco, CA | APPDIRECT | 367 | 7 | 326 |
| Cupertino, CA | APPLE INC. | 106,684 | 16 | 106,684 |
| Houston, TX | ARCHROCK SERVICES, L.P. | 1,104 | 3 | 1,104 |
| Las Vegas, NV | AREA 15 LAS VEGAS LLC | 184 | 3 | 184 |
| Parsippany, NJ | ASCENSIA DIABETES CARE US, INC. | 261 | 8 | 261 |
| Bedford, MA | ASPENTECH CORPORATION | 1,716 | 9 | 1,716 |
| Vienna, VA | ASSOCIATED UNIVERSITIES, INC. | 605 | 5 | 605 |
| Washington, DC | ASSOCIATION OF AMERICAN MEDICAL COLLEGES | 781 | 6 | 781 |
| Northbrook, IL | ASTELLAS US LLC | 2,724 | 6 | 2,724 |
| Houston, TX | ASTORIA GENERATING COMPANY, L.P. | 312 | 5 | 203 |
| Wilmington, DE | ASTRAZENECA PHARMACEUTICALS LP | 17,886 | 72 | — |
| Dallas, TX | AT&T INC. | 126,655 | 47 | 237,022 |
| Dallas, TX | ATMOS ENERGY CORPORATION | 5,325 | 7 | 5,325 |
| Mill Valley, CA | AUBERGE RESORTS, LLC | 2,848 | 6 | 2,848 |
| Cincinnati, OH | AUGUSTAR LIFE INSURANCE COMPANY | 935 | 8 | 780 |
| Indianapolis, IN | AURORIUM HOLDINGS, LLC | 385 | 4 | 385 |
| Birmingham, AL | AUTOMATION PERSONNEL SERVICES, INC. | 877 | 11 | 198 |
| Palo Alto, CA | AVAGO TECHNOLOGIES U.S. INC. | 14,292 | 12 | 14,292 |
| Durham, NC | AVALARA, INC. | 2,280 | 9 | 2,280 |
| Plymouth, MI | AVANZAR INTERIOR TECHNOLOGIES, LTD | 1,161 | 6 | 1,161 |
| Huntsville, AL | AVIAGEN, INC. | 1,976 | 7 | 1,976 |
| Phoenix, AZ | AVNET, INC | 2,729 | 7 | 2,729 |
| Glen Mills, PA | AXALTA COATING SYSTEMS, LLC | 3,322 | 7 | 3,326 |
| Stamford, CT | AXEL JOHNSON INC. | 853 | 30 | 853 |
| Fort Worth, TX | AZZ INCORPORATED | 2,969 | 10 | 2,933 |
| Coral Gables, FL | BAPTIST HEALTH SOUTH FLORIDA, INC. | 28,430 | 10 | 28,430 |
| Bristol, CT | BARNES GROUP INC. | 1,306 | 12 | 1,306 |
| Florham Park, NJ | BASF CORPORATION | 14,350 | 55 | 389 |
| Springfield, MA | BAYSTATE HEALTH, INC. | 11,080 | 8 | 11,080 |
| New York, NY | BBC STUDIOS AMERICAS, INC. | 306 | 5 | 306 |
| Walnut Creek, CA | BELL-CARTER FOODS, LLC | 129 | 3 | 135 |
| St. Louis, MO | BELLRING BRANDS INC | 324 | 6 | 333 |
| Sheboygan Falls, WI | BEMIS MANUFACTURING COMPANY | 1,058 | 5 | 1,058 |
| Tempe, AZ | BENCHMARK ELECTRONICS, INC. | 2,882 | 7 | 2,882 |
| Exton, PA | BENTLEY SYSTEMS INC | 1,451 | 10 | 1,794 |
| Washington, DC | BEVERIDGE & DIAMOND, P.C. | 281 | 7 | 281 |
| Solon, OH | BIRD TECHNOLOGIES GROUP INC. | 174 | 9 | 174 |
| Burlington, MA | BLACK DUCK SOFTWARE, INC. | 924 | 6 | 924 |
| New York, NY | BLACKROCK, INC. | 8,487 | 16 | 8,292 |
| Oak Brook, IL | BLISTEX INC. | 282 | 5 | 285 |
| San Jose, CA | BLOOM ENERGY CORPORATION | 1,719 | 5 | 1,719 |
| Mountain View, CA | BLOOMREACH, INC. | 256 | 5 | 256 |
| Houston, TX | BMC SOFTWARE, INC. | 1,812 | 9 | 134 |
| West Des Moines, IA | BOARD OF TRUSTEES OF THE COOPERATIVE WELFARE BENEFITS FUND | 4,946 | 15 | 934 |
| Ridgefield, CT | BOEHRINGER INGELHEIM USA CORPORATION | 8,917 | 10 | 8,998 |
| Mclean, VA | BOOZ ALLEN HAMILTON INC. | 35,879 | 18 | 35,879 |
| Framingham, MA | BOSE CORPORATION | 1,320 | 10 | 2,051 |
| Plymouth, MI | BRIDGEWATER INTERIORS, LLC | 2,166 | 6 | 2,166 |
| Upton, NY | BROOKHAVEN SCIENCE ASSOCIATES, LLC | 2,867 | 10 | 2,867 |
| Providence, RI | BROWN UNIVERSITY | 5,312 | 14 | 5,458 |
| Louisville, KY | BROWN-FORMAN CORPORATION | 2,394 | 7 | 5,000 |
| New York, NY | BUZZFEED, INC. | 559 | 11 | 559 |
| New York, NY | C.V. STARR & CO., INC. | 1,969 | 8 | 1,969 |
| Long Island City, NY | CABLEVISION LIGHTPATH LLC | 531 | 8 | 544 |
| Centreville, AL | CAHABA MEDICAL CARE FOUNDATION | 500 | 22 | 265 |
| East Rutherford, NJ | CAMBREX CORPORATION | 918 | 6 | 1,090 |
| New York, NY | CAMPARI AMERICA LLC | 443 | 11 | 443 |
| Itasca, IL | CAPTIVE RESOURCES, LLC | 490 | 4 | 490 |
| Cardington, OH | CARDINGTON YUTAKA TECHNOLOGIES, INC. | 745 | 10 | 745 |
| Rochester, NY | CARESTREAM HEALTH, INC. | 1,040 | 11 | — |
| Minneapolis, MN | CARGILL, INCORPORATED | 40,157 | 16 | 41,432 |
| Reading, PA | CARPENTER TECHNOLOGY CORPORATION | 3,766 | 7 | 3,586 |
| Palm Beach Gardens, FL | CARRIER GLOBAL CORPORATION | 11,154 | 9 | 10,340 |
| Lowell, MA | CASA SYSTEMS, INC. | 0 | 7 | — |
| Racine, WI | CASE NEW HOLLAND INDUSTRIAL INC. | 9,393 | 5 | 4,672 |
| Cleveland, OH | CASE WESTERN RESERVE UNIVERSITY POSTDOCTORAL BENEFITS PROGRAM | 5,000 | 14 | 5,000 |
| Cleveland, OH | CBIZ, INC. | 6,776 | 7 | 6,776 |
| Irving, TX | CELANESE AMERICAS, LLC. | 4,198 | 14 | 4,198 |
| New York, NY | CENTRIC BRANDS HOLDINGS, LLC | 1,254 | 5 | 1,254 |
| New York, NY | CERBERUS CAPITAL MANAGEMENT LP | 589 | 16 | 589 |
| Charlottesville, VA | CFA INSTITUTE | 381 | 4 | — |
| Austin, TX | CHARTBEAT, INC. | 104 | 7 | 104 |
| Oklahoma City, OK | CHESAPEAKE ENERGY CORPORATION | 1,648 | 20 | 807 |
| Inver Grove Heights, MN | CHS INC. | 9,881 | 5 | 9,314 |
| Ewing, NJ | CHURCH & DWIGHT CO., INC. | 4,391 | 8 | 4,391 |
| Chicago, IL | CIRCANA, LLC | 3,142 | 8 | 3,142 |
| Stamford, CT | CITIGROUP INC. | 228,944 | 29 | 228,944 |
| Glendale, WI | CLARIOS, LLC | 5,494 | 6 | — |
| Santa Clara, CA | CLOUDERA, INC. | 906 | 5 | 2,781 |
| Redwood City, CA | CODEXIS, INC. | 193 | 6 | 114 |
| New York, NY | COLGATE-PALMOLIVE COMPANY | 33,595 | 22 | 31,986 |
| New York, NY | COLLEGE BOARD | 1,959 | 17 | 262 |
| Beverly Hills, CA | COLOR IMAGE APPAREL, INC. | 1,482 | 18 | 1,482 |
| Philadelphia, PA | COMCAST CORPORATION | 93,051 | 30 | 187,925 |
| San Francisco, CA | COMCAST SPORTSNET BAY AREA | 96 | 10 | — |
| New York, NY | COMMUNITY COUNSELING SERVICE CO., LLC | 575 | 6 | 575 |
| Charlotte, NC | COMPASS GROUP USA, INC. | 162,097 | 27 | 41,955 |
| Dallas, TX | COMPONENTS CORPORATION OF AMERICA | 176 | 6 | 172 |
| Somerset, NJ | COMPOSECURE LLC | 1,043 | 6 | 1,043 |
| Cincinnati, OH | CONCENTRIX CVG CORPORATION | 13,300 | 34 | — |
| Rochester, NY | CONSTELLATION BRANDS, INC. | 3,740 | 10 | 4,108 |
| Chicago, IL | CORIX INFRA SERVICES US INC. | 653 | 5 | 653 |
| Ithaca, NY | CORNELL UNIVERSITY | 14,315 | 11 | 10,312 |
| Cary, NC | COTTON INCORPORATED | 0 | 7 | 129 |
| Atlanta, GA | COUSINS EMPLOYEES LLC | 324 | 5 | 324 |
| Columbus, IN | CUMMINS INC | 29,891 | 7 | 29,891 |
| Albany, NY | CURIA GLOBAL, INC. | 1,469 | 6 | 1,469 |
| Woonsocket, RI | CVS HEALTH CORP | 314,003 | 2 | 309,866 |
| Cypress, CA | DAMERON ALLOY FOUNDRIES CORPORATION | 104 | 4 | 31 |
| Denver, CO | DAVITA INC. | 56,697 | 23 | 56,016 |
| New York, NY | DEBEVOISE & PLIMPTON LLP | 1,714 | 10 | 140 |
| Philadelphia, PA | DECHERT LLP | 1,136 | 14 | 1,136 |
| Goleta, CA | DECKERS OUTDOOR CORPORATION | 2,111 | 14 | 2,111 |
| Round Rock, TX | DELL INC. | 33,762 | 25 | 42,764 |
| Atlanta, GA | DELTA AIR LINES, INC. | 86,779 | 21 | 104,456 |
| Southfield, MI | DENSO INTERNATIONAL AMERICA, INC. | 10,619 | 8 | 10,619 |
| New York, NY | DEUTSCHE BANK AMERICAS HOLDING CORP. | 8,105 | 10 | 8,105 |
| Berwick, PA | DG AMERICAS INC. | 1,044 | 9 | 1,044 |
| Carlisle, PA | DICKINSON COLLEGE | 777 | 11 | 660 |
| North Canton, OH | DIEBOLD INCORPORATED | 3,796 | 9 | 3,500 |
| Boca Raton, FL | DIGITALBRIDGE GROUP ADVISORS, LLC | 213 | 12 | — |
| El Segundo, CA | DIRECTV ENTERTAINMENT HOLDINGS LLC | 7,071 | 18 | 7,071 |
| Baltimore, MD | DLA PIPER LLP | 3,051 | 5 | 3,051 |
| Danbury, CT | DMT SOLUTIONS GLOBAL CORPORATION | 951 | 9 | 951 |
| San Francisco, CA | DOLBY LABORATORIES, INC. | 1,007 | 8 | 1,007 |
| Durham, NC | DUKE UNIVERSITY | 42,652 | 16 | 41,982 |
| Oakland, CA | E.L.F. COSMETICS, INC. | 384 | 8 | 384 |
| San Jose, CA | EBAY, INC. | 6,977 | 13 | 6,977 |
| Londonberry, NH | EFI | 359 | 8 | 359 |
| Austin, TX | EHEALTHINSURANCE SERVICES, INC. | 1,559 | 9 | 1,559 |
| Nutley, NJ | EISAI CORPORATION OF NORTH AMERICA AND ITS SUBSIDIARIES | 1,793 | 7 | 1,793 |
| Boston, MA | ELDERHOSTEL, INC. | 381 | 7 | 381 |
| Redwood City, CA | ELECTRONIC ARTS INC. | 4,820 | 6 | 4,820 |
| Waterbury, CT | ELEMENT SOLUTIONS INC | 1,093 | 6 | 1,045 |
| Indianapolis, IN | ELI LILLY AND COMPANY | 23,080 | 7 | 19,378 |
| Jeannette, PA | ELLIOTT COMPANY | 1,357 | 9 | 1,357 |
| Burlington, MA | EMD MILLIPORE CORPORATION | 14,055 | 10 | 14,055 |
| Irvine, CA | ENDOLOGIX LLC | 418 | 5 | 383 |
| Portsmouth, NH | EPREDIA/NEW ERIE SCIENTIFIC | 250 | 8 | 589 |
| Baltimore, MD | EULER HERMES | 480 | 7 | 480 |
| Jacksonville, FL | EVERBANK, N.A. | 1,592 | 9 | 1,592 |
| Madison, WI | EXACT SCIENCES CORPORATION | 7,015 | 12 | 6,668 |
| Johnston, RI | FACTORY MUTUAL INSURANCE COMPANY | 4,147 | 18 | 4,147 |
| Novato, CA | FAIR ISAAC CORPORATION | 1,326 | 12 | 1,326 |
| Universal City, CA | FANDANGO MEDIA, LLC | 376 | 11 | — |
| Mclean, VA | FEDERAL HOME LOAN MORTGAGE CORP | 8,041 | 6 | 8,041 |
| Washington, DC | FEDERAL NATIONAL MORTGAGE ASSOCIATION | 8,159 | 14 | 8,159 |
| Pittsburgh, PA | FEDERATED HERMES, INC. | 1,453 | 8 | — |
| New York, NY | FISHER BROTHERS MANAGEMENT COMPANY | 178 | 4 | 178 |
| San Jose, CA | FIT ELECTRONICS, INC. | 1,809 | 3 | 1,809 |
| Columbus, OH | FLIGHTSAFETY DEFENSE CORPORATION | 620 | 5 | 620 |
| Columbus, OH | FLIGHTSAFETY INTERNATIONAL INC. | 3,215 | 8 | 3,215 |
| Columbus, OH | FLIGHTSAFETY TEXTRON AVIATION TRAINING LLC | 720 | 7 | 720 |
| Boston, MA | FMR LLC | 68,558 | 7 | 67,516 |
| Fairfield, IA | FOODCHAIN ID GROUP, INC. | 200 | 4 | 249 |
| Durham, NC | FORTREA INC. | 3,993 | 10 | 3,993 |
| New York, NY | FOX CORPORATION | 9,769 | 13 | 9,766 |
| Metuchen, NJ | FRANCO MANUFACTURING CO., INC. | 177 | 6 | 177 |
| King Of Prussia, PA | FRANKLIN BIOLABS, INC. | 105 | 5 | 82 |
| Norwalk, CT | FRONTIER COMMUNICATIONS PARENT, INC. | 10,312 | 44 | 10,145 |
| Irving, TX | GAINWELL TECHNOLOGIES | 11,251 | 21 | 11,235 |
| Olathe, KS | GARMIN INTERNATIONAL, INC. | 6,783 | 4 | 7,084 |
| New York, NY | GBT US LLC | 4,732 | 8 | 4,951 |
| Chicago, IL | GE HEALTHCARE TECHNOLOGIES INC. | 16,875 | 19 | 17,255 |
| New York, NY | GENERAL ATLANTIC SERVICE COMPANY, L.P. | 423 | 4 | 423 |
| San Diego, CA | GENERAL ATOMICS | 12,419 | 13 | 12,262 |
| Evendale, OH | GENERAL ELECTRIC COMPANY, OPERATING AS GE AEROSPACE | 63,622 | 16 | 39,810 |
| Menlo Park, CA | GENESYS CLOUD SERVICES, INC. | 2,683 | 10 | 2,683 |
| Durham, NC | GLAXOSMITHKLINE LLC | 12,135 | 8 | 12,098 |
| Morris Plains, NJ | GLOBAL AEROSPACE, INC. | 175 | 5 | 73 |
| Covington, LA | GLOBALSTAR, INC. | 265 | 9 | 262 |
| Boston, MA | GOODWIN PROCTER LLP | 2,503 | 8 | 2,503 |
| Baltimore, MD | GOUCHER COLLEGE | 351 | 9 | — |
| Minneapolis, MN | GRACO INC. | 2,563 | 17 | 2,563 |
| San Diego, CA | GUILD MORTGAGE COMPANY LLC | 4,831 | 7 | 4,831 |
| Kansas City, MO | H&R BLOCK MANAGEMENT, LLC | 74,731 | 9 | 2,412 |
| Louisville, KY | HAIER US APPLIANCE SOLUTIONS, INC | 15,504 | 11 | 15,504 |
| Warren, NJ | HALEON US HOLDINGS LLC | 2,542 | 11 | 2,426 |
| Chelmsford, MA | HARTE HANKS, INC. | 917 | 9 | 917 |
| New York, NY | HAVAS NORTH AMERICA, INC. | 1,889 | 7 | 1,889 |
| Santa Clara, CA | HCL AMERICA INC. | 19,218 | 8 | 19,218 |
| North Kingston, RI | HEXAGON MANUFACTURING INTELLIGENCE | 4,142 | 1 | 4,142 |
| Iselin, NJ | HEXAWARE TECHNOLOGIES, INC. | 2,018 | 7 | 2,018 |
| Mclean, VA | HILTON EMPLOYER INC | 24,465 | 28 | 22,902 |
| Chicago, IL | HINSHAW & CULBERTSON LLP | 884 | 10 | 760 |
| Libertyville, IL | HOLLISTER INCORPORATED | 1,286 | 9 | 1,286 |
| Madison, MS | HOOD PACKAGING CORPORATION | 1,501 | 6 | 394 |
| Holland, MI | HOPE COLLEGE | 751 | 5 | 751 |
| Temple Terrace, FL | HRG MANAGEMENT, LLC | 359 | 5 | 359 |
| Chicago, IL | HSBC NORTH AMERICA HOLDINGS INC. | 5,882 | 13 | 5,882 |
| Alexandria, VA | HUMAN RESOURCES RESEARCH ORGANIZATION | 184 | 10 | — |
| Blue Bell, PA | ICON CLINICAL RESEARCH LLC | 10,513 | 9 | 11,900 |
| Northbrook, IL | IDEX CORPORATION | 4,165 | 24 | 4,165 |
| Sunnyvale, CA | ILLUMIO, INC. | 512 | 5 | 512 |
| Redwood City, CA | INFORMATICA LLC | 1,644 | 8 | 1,644 |
| New York, NY | INTEGRAL AD SCIENCE, INC. | 503 | 6 | 503 |
| Chandler, AZ | INTEL CORPORATION | 47,047 | 17 | 47,046 |
| Morristown, NJ | INTERCEPT PHARMACEUTICALS, INC. | 297 | 6 | 297 |
| Armonk, NY | INTERNATIONAL BUSINESS MACHINES CORPORATION | 216,044 | 27 | 216,044 |
| New York, NY | INTERNATIONAL FLAVORS & FRAGRANCES, INC. | 5,349 | 11 | 5,349 |
| Arlington, VA | INTERNATIONAL JUSTICE MISSION | 253 | 5 | 253 |
| Memphis, TN | INTERNATIONAL PAPER COMPANY | 29,134 | 5 | — |
| New York, NY | INTERNATIONAL RESCUE COMMITTEE | 3,222 | 10 | — |
| Trevose, PA | INTERNATIONAL SOS ASSISTANCE, INC. | 1,761 | 7 | 90 |
| Princeton, NJ | INTERPOOL, INC. DBA TRAC INTERMODAL | 536 | 7 | 576 |
| Sunnyvale, CA | INTUITIVE SURGICAL, INC. | 8,683 | 9 | 13,882 |
| New York, NY | INVESTCORP INTERNATIONAL, INC. | 154 | 4 | 154 |
| Durham, NC | IQVIA INC. | 17,425 | 16 | 17,425 |
| Bedford, MA | IROBOT CORPORATION | 332 | 4 | 332 |
| New York, NY | ISRAEL DISCOUNT BANK OF NEW YORK | 664 | 8 | 664 |
| Allen, TX | JACK HENRY & ASSOCIATES, INC. | 7,082 | 8 | 7,200 |
| New York, NY | JEFFERIES FINANCIAL GROUP INC. | 3,616 | 7 | 3,616 |
| Baltimore, MD | JOHNS HOPKINS UNIVERSITY | 19,157 | 17 | 19,151 |
| Cleveland, OH | JONES DAY | 4,528 | 14 | 4,465 |
| Sunnyvale, CA | JSR NORTH AMERICA HOLDINGS, INC. | 447 | 11 | 309 |
| Sunnyvale, CA | JUNIPER NETWORKS, INC. | 4,314 | 18 | 4,314 |
| Pittsburgh, PA | K&L GATES LLP | 3,698 | 13 | 2,711 |
| Matawan, NJ | K. HOVNANIAN COMPANIES, LLC | 1,401 | 14 | 1,401 |
| Boaz, AL | KABCO BUILDERS, INC. | 129 | 4 | 94 |
| Guntersville, AL | KAPPLER, INC. | 137 | 3 | 104 |
| Fort Mill, SC | KENNAMETAL INC. | 2,694 | 23 | 9,020 |
| Chicago, IL | KIRKLAND & ELLIS, LLP | 7,287 | 11 | — |
| Milpitas, CA | KLA CORPORATION | 4,504 | 15 | 4,504 |
| Grand Rapids, MI | KNAPE AND VOGT MANUFACTURING COMPANY | 495 | 4 | 495 |
| New York, NY | KOHLBERG KRAVIS ROBERTS & CO. L.P. | 1,580 | 8 | 1,580 |
| Kohler, WI | KOHLER CO. & SUBSIDIARIES | 19,749 | 5 | 19,749 |
| Ramsey, NJ | KONICA MINOLTA BUSINESS SOLUTIONS U.S.A., INC. | 5,096 | 11 | 5,096 |
| Jacksonville, FL | KRATON CORPORATION | 1,186 | 12 | 1,192 |
| New York, NY | KYNDRYL INC. | 6,321 | 14 | 6,929 |
| Burlington, NC | LABORATORY CORPORATION OF AMERICA HOLDINGS | 54,398 | 11 | — |
| Fremont, CA | LAM RESEARCH CORPORATION | 7,358 | 17 | 7,750 |
| Houston, TX | LANDRYS, LLC | 3,896 | 5 | 3,896 |
| Enfield, CT | LEGO SYSTEMS INC. | 3,745 | 3 | 3,745 |
| Arlington, VA | LEONARDO DRS, INC. | 5,710 | 9 | 6,468 |
| San Francisco, CA | LEVI STRAUSS & CO. | 2,975 | 18 | 505 |
| Melville, NY | LEVITON MANUFACTURING CO., INC. | 2,377 | 13 | — |
| Lexington, KY | LEXMARK INTERNATIONAL, INC. | 1,570 | 5 | 1,551 |
| Southlake, TX | LIKEWIZE CORPORATION | 321 | 8 | 380 |
| Carolina, PR | LILLY DEL CARIBE, INC. | 1,120 | 6 | 1,059 |
| Tysons, VA | LMI CONSULTING LLC | 2,396 | 10 | 2,396 |
| Dallas, TX | LOCKE LORD LLP | 0 | 9 | 906 |
| Florence, AL | LONG-LEWIS OF THE SHOALS, INC. | 817 | 4 | 408 |
| Boston, MA | LOOKOUT, INC. | 189 | 9 | 189 |
| Houston, TX | LOOMIS | 10,680 | 8 | 10,284 |
| Jersey City, NJ | LORD, ABBETT & CO. LLC | 773 | 12 | 750 |
| Addison, TX | LUX ENTERPRISES, INC. | 198 | 3 | 198 |
| Buffalo, NY | M&T BANK CORPORATION FLEXIBLE BENEFITS PLAN | 23,008 | 5 | 22,782 |
| San Francisco, CA | M. ARTHUR GENSLER JR. & ASSOCIATES, INC. | 4,049 | 10 | 4,049 |
| Washington, DC | MAPBOX, INC. | 238 | 10 | 600 |
| Arlington, VA | MARCH OF DIMES | 309 | 8 | 390 |
| Fenton, MO | MARITZ HOLDINGS INC. | 2,693 | 7 | 2,693 |
| New York, NY | MARKETAXESS CORPORATION | 573 | 4 | 573 |
| Bethesda, MD | MARRIOTT WORLDWIDE PAYROLL, LLC | 52 | 3 | 52 |
| Santa Clara, CA | MARVELL SEMICONDUCTOR, INC. | 3,007 | 9 | 2,013 |
| Somerville, MA | MASS GENERAL BRIGHAM INCORPORATED | 73,265 | 38 | 76,960 |
| Long Grove, IL | MAT HOLDINGS, INC. | 1,023 | 10 | 1,023 |
| Long Grove, IL | MAT HOLDINGS, INC. | 1,023 | 10 | 1,023 |
| Mayfield Heights, OH | MATERION SERVICES INC. | 2,205 | 11 | 2,214 |
| Birmingham, AL | MAYCO HOLDINGS, LLC | 171 | 8 | 183 |
| Chicago, IL | MAYER BROWN LLP | 2,120 | 9 | 1,863 |
| Allenton, WI | MAYSTEEL INDUSTRIES, LLC | 538 | 6 | 538 |
| Westminster, MD | MCDANIEL COLLEGE | 409 | 2 | — |
| New York, NY | MCGRAW-HILL GLOBAL EDUCATION HOLDINGS, LLC | 3,535 | 6 | 3,535 |
| San Jose, CA | MEDIATEK USA INC. | 796 | 11 | 796 |
| Hazelwood, MO | MEH, INC | 2,510 | 11 | 2,738 |
| Roanoke, VA | METALSA STRUCTURAL PRODUCTS, INC. | 2,660 | 8 | 186 |
| New York, NY | MILBANK LLP | 1,102 | 9 | 1,102 |
| Spartanburg, SC | MILLIKEN & COMPANY | 5,483 | 10 | 5,483 |
| New York, NY | MINERALS TECHNOLOGIES INC. | 1,526 | 8 | — |
| Mesa, AZ | MITEL (DELAWARE), INC. | 429 | 8 | 429 |
| Chicago, IL | MONDELEZ GLOBAL LLC | 13,691 | 28 | 10,720 |
| Merrillville, IN | MONOSOL, LLC | 664 | 6 | 664 |
Alphabetical order — this site ranks no one. Employers whose benefit plan reported an insurance contract on Schedule A of the Form 5500 for plan year 2024. Most plans with fewer than 100 participants do not file one. How to read this.