| 1 | Gartner, INC. | USA | Stamford | 56 Top Gallant Rd | Fairfield | 06902 | gartner.***** | 1979 | $6,267,411,000 | 21,044 | N/A | N/A | 2232152 |
| 2 | Research Triangle Institute INC | USA | Research Triangle Pa | 3040 Cornwallis Rd | Nc | 27709 | rti.***** | 1958 | $1,366,395,000 | 3,117 | N/A | N/A | 0122638 |
| 3 | Uchicago Argonne, LLC | USA | Lemont | 9700 S Cass Ave | Cook | 60439 | www1.***** | 2016 | $865,089,542 | 3,201 | N/A | N/A | 01843931 |
| 4 | Highline Aftermarket Acquisition, LLC | USA | Memphis | 4500 Malone Rd Ste 3 | Shelby | 38118 | highlineaftermarket.***** | 2016 | $741,180,257 | 697 | N/A | N/A | N/A |
| 5 | Ulse INC. | USA | Evanston | 1603 Orrington Ave Ste 2000 | Cook | 60201 | ul.***** | 2019 | $709,404,028 | 15,233 | N/A | N/A | 7443377 |
| 6 | National Technology & Engineering Solutions Of Sandia, LLC | USA | Albuquerque | 1515 Eubank Blvd Se | Bernalillo | 87123 | sandia.***** | 2016 | $664,123,498 | 12,000 | N/A | N/A | 6064144 |
| 7 | Refinitiv Us LLC | USA | New York City | 28 Liberty St Fl 58 | New York | 10005 | refinitiv.***** | 2006 | $599,781,482 | 16,000 | N/A | N/A | 4128251 |
| 8 | Unicom Global, INC. | USA | Mission Hills | 15535 San Fernando Mission Blvd Ste 310 | San Diego | 91345 | unicomsi.***** | 1981 | $579,131,182 | 970 | N/A | N/A | 2239388 |
| 9 | General Atomics | USA | San Diego | 3550 General Atomics Ct | San Diego | 92121 | ga.***** | 1986 | $525,410,723 | 9,015 | N/A | N/A | 1109655 |
| 10 | Acuren CORPORATION | USA | Tomball | 14434 Medical Complex Dr Ste 100 | Harris | 77377 | acuren.***** | 2024 | $463,527,000 | 6,060 | N/A | N/A | N/A |
| 11 | Ipsos America, INC | USA | New York City | 1271 Avenue of the Americas Fl 15 | New York | 10020 | ipsos-na.***** | 1998 | $453,914,172 | 2,000 | N/A | N/A | 2842022 |
| 12 | Acn Holdings INC. | USA | New York City | 85 Broad St | New York | 10004 | nielsen.***** | 2007 | $445,833,856 | 34,730 | N/A | N/A | 3353345 |
| 13 | Forrester Research, INC. | USA | Cambridge | 60 Acorn Park Dr | Middlesex | 02140 | forrester.***** | 1983 | $432,470,000 | 1,571 | N/A | N/A | 2593585 |
| 14 | Georgia Tech Research CORPORATION | USA | Atlanta | 926 Dalney St Nw | Fulton | 30332 | N/A | 1937 | $431,842,324 | 2,210 | N/A | N/A | J404321 |
| 15 | Newfold Digital, INC. | USA | Jacksonville | 5335 Gate Pkwy | Duval | 32256 | newfold.***** | 2021 | $409,072,562 | 4,340 | N/A | N/A | 2739803 |
| 16 | The Pew Charitable Trusts | USA | Philadelphia | 2005 Market St Fl 28 | Philadelphia | 19103 | pewtrusts.***** | 2002 | $408,893,947 | 1,100 | N/A | N/A | 0003105890 |
| 17 | Taylor Communications, INC. | USA | North Mankato | 1725 Roe Crest Dr | Nicollet | 56003 | taylorcommunications.***** | 2016 | $408,703,205 | 3,500 | N/A | N/A | N/A |
| 18 | Gfk Holding, INC. | USA | New York City | 85 Broad St Fl 20 | New York | 10004 | mtbcoins.***** | 2022 | $403,637,137 | 989 | N/A | N/A | 3134739 |
| 19 | Gfk Us Holdings, INC. | USA | New York City | 85 Broad St Fl 20 | New York | 10004 | gfk.***** | 2004 | $402,780,251 | 978 | N/A | N/A | N/A |
| 20 | Gfk Custom Research, LLC | USA | New York City | 85 Broad St Fl 20 | New York | 10004 | N/A | 2014 | $400,000,000 | 700 | N/A | N/A | 522339690 |
| 21 | Acnielsen CORPORATION | USA | New York City | 675 Avenue of the Americas Fl 4 | New York | 10004 | nielsen.***** | 2001 | $398,346,065 | 34,730 | N/A | N/A | 357355 |
| 22 | National Opinion Research Center | USA | Chicago | 55 E Monroe St 30th Fl | Cook | 60603 | norc.***** | 1941 | $348,969,128 | 1,200 | N/A | N/A | 19871106593 |
| 23 | The Nielsen Company Us LLC | USA | New York City | 675 Avenue of the Americas | New York | 10011 | nielsen.***** | 1999 | $329,460,607 | 34,730 | N/A | N/A | 3587365 |
| 24 | Dynata Holdings CORP. | USA | Shelton | 4 Research Dr Ste 300 | Fairfield | 06484 | surveysampling.***** | 2006 | $241,718,731 | 1,250 | N/A | N/A | N/A |
| 25 | Tiger Analytics, INC. | USA | Santa Clara | 2350 Mission College Blvd Ste 495 | Santa Clara | 95054 | tigeranalytics.***** | 2011 | $219,836,288 | 60 | N/A | N/A | 4934594 |
| 26 | Education Development Center, INC. | USA | Waltham | 300 5th Ave 2010 | Middlesex | 02451 | edc.***** | 1958 | $210,774,465 | 600 | N/A | N/A | 0526628 |
| 27 | Gallup, INC. | USA | Washington | 901 F St Nw Ste 400 | District of Columbia | 20004 | gallup.***** | 1998 | $188,957,208 | 2,000 | N/A | N/A | 0519629 |
| 28 | Global Communities, INC. | USA | Bethesda | 7700 Wisconsin Ave Ste 1100 | Montgomery | 20814 | globalcommunities.***** | 1952 | $181,533,521 | 1,300 | N/A | N/A | 520846183 |
| 29 | National Research CORPORATION | USA | Lincoln | 1245 Q St Ste 100 | Lancaster | 68508 | nrchealth.***** | 1981 | $143,060,000 | 368 | N/A | N/A | 6048145 |
| 30 | Cna CORPORATION | USA | Arlington | 3003 Washington Blvd Ste 300 | Arlington | 22201 | nationalnursesunited.***** | 1942 | $142,365,190 | 600 | N/A | N/A | 03643749 |
| 31 | Jordan Brown Acquisition CO INC | USA | St. Augustine South | 475 W Town Pl Ste 200 | St. Johns | 32092 | brownjordan.***** | 2016 | $138,455,345 | 1,551 | N/A | N/A | 6224042 |
| 32 | Polymer Solutions Group, LLC | USA | Cleveland | 12819 Coit Rd | Cuyahoga | 44108 | flowpolymers.***** | 2015 | $114,841,398 | 130 | N/A | N/A | 5724672 |
| 33 | Naval Research Laboratory | USA | Washington | 4555 Overlook Ave Sw | District of Columbia | 20375 | nrl.***** | 1999 | $112,378,666 | 3,300 | N/A | N/A | N/A |
| 34 | Numerator Parent LLC | USA | Chicago | 24 E Washington St Ste 1200 | Cook | 60602 | numerator.***** | 2021 | $109,622,688 | 1,127 | N/A | N/A | N/A |
| 35 | Hrl Laboratories, LLC | USA | Malibu | 3011 Malibu Canyon Rd | Los Angeles | 90265 | hrl.***** | 1997 | $106,518,613 | 647 | N/A | N/A | 2833732 |
| 36 | Kantar LLC | USA | New York City | 175 Greenwich St Fl 35 | New York | 10007 | kantar.***** | 2019 | $105,821,920 | 1,350 | N/A | N/A | 6102144 |
| 37 | Toray Industries America INC | USA | New York City | 1251 Avenue of the Americas | New York | 10020 | toray.***** | 1965 | $105,772,648 | 81 | N/A | N/A | 193847 |
| 38 | Abt Global LLC | USA | Rockville | 6130 Executive Blvd | Montgomery | 20852 | abtglobal.***** | 1965 | $101,577,976 | 2,700 | N/A | N/A | 2735058 |
| 39 | World Education Services, INC. | USA | New York City | 1 Battery Park Plz Fl 3 | New York | 10004 | wes.***** | 1974 | $99,938,416 | 100 | N/A | N/A | 351509 |
| 40 | Novozymes, INC. | USA | Davis | 1445 Drew Ave | Santa Clara | 95618 | novozymes.***** | 2015 | $97,526,883 | 110 | N/A | N/A | N/A |
| 41 | Cable Television Laboratories, INC. | USA | Louisville | 858 Coal Creek Cir | Boulder | 80027 | cablelabs.***** | 1988 | $95,275,207 | 210 | N/A | N/A | 2160455 |
| 42 | Power Play Marketing Group LLC | USA | Mendota Heights | 1300 Mendota Heights Rd | Dakota | 55120 | powerplaymarketinggroup.***** | 2006 | $95,254,488 | 120 | N/A | N/A | 1965365-2 |
| 43 | Circana, LLC | USA | Chicago | 203 N la Salle St Ste 1500 | Cook | 60601 | circana.***** | 2011 | $92,102,306 | 3,600 | N/A | N/A | 938231 |
| 44 | New York Ehealth Collaborative, INC. | USA | Albany | 99 Washington Ave Ste 1750 | Albany | 12260 | N/A | 2006 | $90,251,795 | 76 | N/A | N/A | 3446754 |
| 45 | J.D. Power | USA | Troy | 320 E Big Beaver Rd Ste 500 | Newaygo | 48083 | jdpower.***** | 2019 | $90,094,775 | 800 | N/A | N/A | 3371783 |
| 46 | Data Recognition CORPORATION | USA | Maple Grove | 13490 Bass Lake Rd | Hennepin | 55311 | datarecognitioncorp.***** | 1976 | $86,992,005 | 629 | N/A | N/A | 24841-LLC |
| 47 | 84.51 LLC | USA | Cincinnati | 100 W 5th St | Hamilton | 45202 | 8451.***** | 2015 | $84,035,022 | 217 | N/A | N/A | 1373814 |
| 48 | Iqvia Rds INC. | USA | Durham | 2400 Ellis Rd | Durham | 27703 | iqvia.***** | 2016 | $76,897,045 | 670 | N/A | N/A | 0119582 |
| 49 | Nielsen Consumer LLC | USA | Chicago | 200 W Jackson Blvd Fl 26 | Cook | 60606 | nielseniq.***** | 2021 | $76,579,798 | 33,000 | N/A | N/A | 7887828 |
| 50 | U.S. Soybean Export Council, INC. | USA | St. Peters | 960 Penny Ln | St. Charles | 63376 | N/A | 2005 | $75,511,789 | 30 | N/A | N/A | 3935704 |
| 51 | Waterford Institute, INC. | USA | Sandy | 1590 E 9400 S | Salt Lake | 84093 | waterford.***** | 1976 | $73,532,657 | 671 | N/A | N/A | N11000004500 |
| 52 | Research Horizons, LLC | USA | New York City | 40 W 25th St | New York | 10010 | N/A | 2002 | $71,706,025 | 340 | N/A | N/A | 0400053381 |
| 53 | Geneva Foundation | USA | Tacoma | 950 Broadway Ste 307 | Pierce | 98402 | genevausa.***** | 1993 | $70,831,465 | 87 | N/A | N/A | 911593913 |
| 54 | Dynata, LLC | USA | Shelton | 4 Research Dr Ste 300 | Fairfield | 06484 | dynata.***** | 2017 | $70,723,895 | 600 | N/A | N/A | 3598414 |
| 55 | Scientific Research CORP | USA | Atlanta | 2300 Windy Ridge Pkwy Se Ste 400s | Fulton | 30339 | scires.***** | 1988 | $69,062,545 | 1,006 | N/A | N/A | 760255801 |
| 56 | Western Michigan University Homer Stryker M.D. School Of Medicine. | USA | Kalamazoo | 1000 Oakland Dr | Kalamazoo | 49008 | wmich.***** | 2011 | $69,001,020 | 550 | N/A | N/A | 800933185 |
| 57 | Trustees For Harvard University (INC) | USA | Washington | 1703 32nd St Nw | District of Columbia | 20007 | doaks.***** | 1940 | $65,362,351 | 100 | N/A | N/A | N/A |
| 58 | Toluna USA, INC. | USA | Norwalk | 501 Merritt 7 Ste 6 | Fairfield | 06851 | tolunacorporate.***** | 2009 | $60,893,718 | 2,000 | N/A | N/A | 4171036 |
| 59 | Known Global LLC | USA | New York City | 5 Bryant Park Fl 22 | New York | 10018 | known.***** | 2004 | $60,000,000 | 183 | N/A | N/A | N/A |
| 60 | Urenco Investments INC | USA | Washington | 2600 Virginia Ave Nw Ste 610 | District of Columbia | 20037 | urenco.***** | 1990 | $58,191,126 | 313 | N/A | N/A | N/A |
| 61 | Kadiak, LLC | USA | Anchorage | 3800 Centerpoint Dr Ste 502 | Anchorage | 99503 | N/A | 2016 | $54,154,000 | 3 | N/A | N/A | 10036421 |
| 62 | Innovations For Poverty Action A Nonprofit CORPORATION | USA | Washington | 655 15th St Nw Ste 800 | District of Columbia | 20005 | N/A | 2005 | $53,278,625 | 300 | N/A | N/A | 0100892205 |
| 63 | Kyiv School Of Economics | USA | Oakland | 6080 N Rockridge Blvd | Alameda | 94618 | N/A | N/A | $52,825,850 | 2 | N/A | N/A | 522264611 |
| 64 | Westat, INC. | USA | Rockville | 1600 Research Blvd | Montgomery | 20850 | westat.***** | 1979 | $52,823,493 | 2,000 | N/A | N/A | 0871560 |
| 65 | Capital Region Development Authority | USA | Hartford | 100 Columbus Blvd Ste 500 | Hartford | 06103 | crdact.***** | 1998 | $51,458,882 | 5 | N/A | N/A | N/A |
| 66 | Hanley Wood Market Intelligence | USA | Costa Mesa | 555 Anton Blvd Ste 950 | Orange | 92626 | hwmarketintelligence.***** | 2004 | $50,000,000 | 124 | N/A | N/A | 199535410004 |
| 67 | Aquity Solutions, LLC | USA | Raleigh | 4208 Six Forks Rd Ste 1000 | Wake | 27609 | libertyhomeequity.***** | 2023 | $49,881,109 | 2,545 | N/A | N/A | 7181908 |
| 68 | Ipsos-Insight, LLC | USA | Norwalk | 501 Merritt 7 | Fairfield | 06851 | ipsos.***** | 2001 | $49,352,031 | 1,500 | N/A | N/A | N/A |
| 69 | Idc Research, INC. | USA | Needham | 140 Kendrick St Ste A110 | Norfolk | 02494 | idc.***** | 1964 | $49,032,643 | 400 | N/A | N/A | 3056947 |
| 70 | Guidepoint Global, LLC | USA | New York City | 675 Avenue of the Americas Fl 2 | New York | 10010 | guidepoint.***** | 2003 | $46,478,566 | 1,114 | N/A | N/A | 2881783 |
| 71 | Center For American Progress | USA | Washington | 1333 H St Nw Fl 10 | District of Columbia | 20005 | americanprogress.***** | 2002 | $46,089,112 | 310 | N/A | N/A | 300126510 |
| 72 | Care Access Research LLC | USA | Boston | 33 Arch St Fl 17 | Suffolk | 02110 | careaccessresearch.***** | 2016 | $45,442,666 | 111 | N/A | N/A | 0450442238 |
| 73 | Mathematica Group Holding INC. | USA | Princeton | 600 Alexander Park | Mercer | 08540 | mathematica.***** | 1986 | $45,047,487 | 1,471 | N/A | N/A | 2081777 |
| 74 | The High Desert Partnership In Academic Excellence' Foundation Incorporated | USA | Apple Valley | 17500 Mana Rd | San Bernardino | 92307 | lewiscenter.***** | 1992 | $45,024,211 | 350 | N/A | N/A | 1715246 |
| 75 | Pew Research Center | USA | Washington | 901 East St Nw Ste 300 | District of Columbia | 20004 | pewresearch.***** | 1985 | $43,993,360 | 10 | N/A | N/A | 0003209045 |
| 76 | Child Trends, Incorporated | USA | Rockville | 12300 Twinbrook Pkwy Ste 235 | Montgomery | 20852 | childtrends.***** | 1979 | $43,132,013 | 99 | N/A | N/A | 535331 |
| 77 | Mathematica INC. | USA | Princeton | 600 Alexander Park Ste 100 | Mercer | 08540 | mathematica.***** | 1986 | $42,829,104 | 1,471 | N/A | N/A | 816976 |
| 78 | Material Holdings, LLC | USA | Los Angeles | 1900 Avenue of the Stars Ste 1600 | Los Angeles | 90067 | lrwonline.***** | 1973 | $42,453,909 | 234 | N/A | N/A | 952848286 |
| 79 | The Rdi CORPORATION | USA | Cincinnati | 4350 Glendale Milford Rd Ste 250 | Hamilton | 45242 | rdi-connect.***** | 1979 | $42,306,690 | 700 | N/A | N/A | 538068 |
| 80 | Harris Insights And Analytics LLC | USA | Chicago | 225 W Wacker Dr Ste 1900 | Cook | 60606 | whi.***** | 2017 | $41,098,554 | 150 | N/A | N/A | N/A |
| 81 | Servion Us Groupco INC. | USA | Princeton | 3 Independence Way Ste 304 | Mercer | 08540 | servion.***** | 2023 | $39,963,433 | 1,580 | N/A | N/A | 7640966 |
| 82 | Mercatus Center, INC. | USA | Arlington | 3434 Washington Blvd Ste 4 | Arlington | 22201 | mercatus.***** | 1987 | $39,338,379 | 37 | N/A | N/A | 03081049 |
| 83 | Commission On Accreditation Of Rehabilitation Facilities | USA | Tucson | 6951 E Southpoint Rd | Pima | 85756 | carf.***** | 1966 | $37,967,154 | 105 | N/A | N/A | 07103781 |
| 84 | Delta Information Systems, INC. | USA | Horsham | 747 Dresher Rd Ste 100 | Montgomery | 19044 | delta-info.***** | 1977 | $36,394,247 | 113 | N/A | N/A | 0000605706 |
| 85 | Advanced Robotics For Manufacturing Institute | USA | Pittsburgh | 4501 Lytle St | Allegheny | 15207 | arminstitute.***** | 2016 | $35,868,101 | 2 | N/A | N/A | 0006391188 |
| 86 | Radius Gmr, LLC | USA | New York City | 120 5th Ave | New York | 10011 | radius-global.***** | 2004 | $35,688,690 | 159 | N/A | N/A | 3610848 |
| 87 | Lsega, INC. | USA | New York City | 28 Liberty St Fl 58 | New York | 10005 | N/A | 2019 | $35,659,534 | 3,804 | N/A | N/A | 7613637 |
| 88 | Generate Biomedicines, INC. | USA | Somerville | 101 South St Ste 900 | Middlesex | 02143 | generatebiomedicines.***** | 2018 | $32,780,351 | 47 | N/A | N/A | 7023529 |
| 89 | Goldwater Institute Holding Company, LLC | USA | Phoenix | 500 E Coronado Rd | Maricopa | 85004 | goldwaterinstitute.***** | 1988 | $31,686,371 | 42 | N/A | N/A | L09790365 |
| 90 | Renaissance LLC | USA | Indianapolis | 8888 Keystone Xing | Marion | 46240 | N/A | 1987 | $31,472,549 | 255 | N/A | N/A | 351720337 |
| 91 | Tnc (us) Holdings, INC. | USA | New York City | 675 Avenue of the Americas Fl 2 | New York | 10010 | nlsn.***** | 1977 | $30,899,179 | 34,730 | N/A | N/A | 425626 |
| 92 | Big Village Insights, INC. | USA | Princeton | 301 Carnegie Ctr Ste 301 | Mercer | 08540 | N/A | 2023 | $29,972,777 | 1,800 | N/A | N/A | 2263905 |
| 93 | Nielsen Audio, INC. | USA | Columbia | 7000 Columbia Gateway Dr Ste 200 | Howard | 21046 | nielsen.***** | 2013 | $29,473,472 | 1,443 | N/A | N/A | 520278528 |
| 94 | Credit-Based Asset Servicing And Securitization LLC | USA | Edison | 333 Thornall St Ste 602 | Sussex | 08837 | N/A | 1996 | $28,974,160 | 1,200 | N/A | N/A | N/A |
| 95 | Market Once Holdings.com, LLC | USA | Denver | 205 Detroit St Ste 600 | Denver | 80206 | N/A | 2007 | $28,915,378 | 75 | N/A | N/A | L07000109748 |
| 96 | Statista INC. | USA | New York City | 3 World Trade Center 175 Greenwich St Fl 36 | New York | 10007 | N/A | 2011 | $28,645,076 | 1,100 | N/A | N/A | 5008246 |
| 97 | Spins LLC | USA | Chicago | 311 W Huron St Ste 900 | Cook | 60654 | spins.***** | 2011 | $27,911,586 | 150 | N/A | N/A | 4996982 |
| 98 | National Registry Of Emergency Medical Technicians (INC) | USA | Columbus | 6610 Busch Blvd | Franklin | 43229 | nremt.***** | 1973 | $27,885,045 | 35 | N/A | N/A | 435833 |
| 99 | Education Analytics, INC. | USA | Madison | 110 E Main St Ste 1000 | Dane | 53703 | edanalytics.***** | 2012 | $26,858,929 | 37 | N/A | N/A | N/A |
| 100 | Prosearch Strategies, LLC | USA | Los Angeles | 3250 Wilshire Blvd Ste 301 | Los Angeles | 90010 | prosearchstrategies.***** | 2005 | $25,851,557 | 112 | N/A | N/A | 201404510367 |