| 1 | Chubu Electric Power Company Incorporated | Unitedkingdom | Moorgate | 2nd Floor | London | WC1V 7BP | N/A | 1984 | $23,857,889,000 | 30,848 | N/A | N/A | FC013033 |
| 2 | Vertex Pharmaceuticals (europe) LIMITED | Unitedkingdom | Marylebone | Kingdom Street | London | W2 6BD | adhdandyou.***** | 1994 | $12,659,990,000 | 712 | N/A | N/A | 02907620 |
| 3 | Chuzhou Gaocheng Business Management CO., LTD. | China | Chuzhou | Room 16, Commerce, No.16, Huifeng W. Road | Anhui | 239000 | N/A | 2020 | $11,241,989,881 | 100 | N/A | N/A | 341100000191271 |
| 4 | Gartner, INC. | USA | Stamford | 56 Top Gallant Rd | Fairfield | 06902 | gartner.***** | 1979 | $6,267,411,000 | 21,044 | N/A | N/A | 2232152 |
| 5 | Medimmune LIMITED | Unitedkingdom | Chesterton | 1 Francis Crick Avenue | Cambridgeshire | CB2 0AA | astrazenecapersonaldataretention.***** | 1989 | $3,289,634,790 | 202 | N/A | N/A | 02451177 |
| 6 | Illumina Cambridge LIMITED | Unitedkingdom | Cambridge | Illumina Centre | Cambridgeshire | CB21 6DF | illumina.***** | 1998 | $3,110,609,000 | 731 | N/A | N/A | 03625145 |
| 7 | Nielsen Holdings LIMITED | Unitedkingdom | Marston | Nielsen House | Oxfordshire | OX4 2WB | nielsen.***** | 2015 | $2,898,796,424 | 15,000 | N/A | N/A | 09422989 |
| 8 | Glaxosmithkline Research & Development LIMITED | Unitedkingdom | Saint Giles | 79 New Oxford Street | London | WC1A 1DG | gsk.***** | 1965 | $2,033,939,991 | 3,224 | N/A | N/A | 00835139 |
| 9 | Qinetiq LIMITED | Unitedkingdom | Farnborough | Cody Technology Park | Hampshire | GU14 0LX | qinetiq.***** | 2001 | $1,580,550,839 | 5,218 | N/A | N/A | 03796233 |
| 10 | Zhengzhou Siling Business Management Consulting CO., LTD. | China | Henan Mongol Autonomous County | No.617, Floor West 3, Norht-west Side Zhengzhou Wen Bocheng Xi C | Qinghai | 811500 | N/A | 2021 | $1,416,025,798 | 100 | N/A | N/A | 410110000782803 |
| 11 | Xiamen Huaguangfa Investment Management Co.,ltd. | China | Xiamen | Room 703, No.42, Xilin Road, Siming District | Fujian | 361009 | N/A | 2008 | $1,398,250,000 | 100 | N/A | N/A | 350203200096700 |
| 12 | 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 |
| 13 | Kudos Pharmaceuticals LIMITED | Unitedkingdom | Chesterton | 327-328 Milton Road | Cambridgeshire | CB4 0WG | kudospharma.***** | 1997 | $1,242,328,360 | 514 | N/A | N/A | 03479984 |
| 14 | Uchicago Argonne, LLC | USA | Lemont | 9700 S Cass Ave | Cook | 60439 | www1.***** | 2016 | $865,089,542 | 3,201 | N/A | N/A | 01843931 |
| 15 | Shanxi Chenxing Business Management Consulting CO., LTD. | China | Jinzhou | Room 509-2, Floor 5, Jinshu Huishou Development Center, No.275, | Shanxi | 030600 | N/A | 2021 | $848,130,006 | 2 | N/A | N/A | 14079100A000704 |
| 16 | Dandong Fenghuangshan Cultural & Creative Industry CO., LTD. | China | Dandong | Room 201, Floor 2, No.238, Fengshan Road, Fengshan Jingji Guanli | Liaoning | 118000 | N/A | 2021 | $743,564,760 | 11 | N/A | N/A | 210682004112906 |
| 17 | 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 |
| 18 | Ulse INC. | USA | Evanston | 1603 Orrington Ave Ste 2000 | Cook | 60201 | ul.***** | 2019 | $709,404,028 | 15,233 | N/A | N/A | 7443377 |
| 19 | 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 |
| 20 | 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 |
| 21 | 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 |
| 22 | General Atomics | USA | San Diego | 3550 General Atomics Ct | San Diego | 92121 | ga.***** | 1986 | $525,410,723 | 9,015 | N/A | N/A | 1109655 |
| 23 | Moody`s Group UK LTD | Unitedkingdom | Stepney | 1 Canada Square | London | E14 5FA | moodys.***** | 2007 | $509,252,495 | 334 | N/A | N/A | 06384256 |
| 24 | 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 |
| 25 | 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 |
| 26 | Beijing Academy Of Science And Technology | China | Beijing | No.27, West Third Ring Rd. North, Haidian District | Beijing | 100089 | N/A | 1984 | $451,506,888 | 5,138 | N/A | N/A | 1211000040068562 |
| 27 | 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 |
| 28 | Forrester Research, INC. | USA | Cambridge | 60 Acorn Park Dr | Middlesex | 02140 | forrester.***** | 1983 | $432,470,000 | 1,571 | N/A | N/A | 2593585 |
| 29 | 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 |
| 30 | Yougov PLC | Unitedkingdom | Finsbury | 50 Featherstone Street | London | EC1Y 8RT | yougov.***** | 1998 | $425,117,817 | 3,035 | N/A | N/A | 03607311 |
| 31 | Newfold Digital, INC. | USA | Jacksonville | 5335 Gate Pkwy | Duval | 32256 | newfold.***** | 2021 | $409,072,562 | 4,340 | N/A | N/A | 2739803 |
| 32 | 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 |
| 33 | 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 |
| 34 | 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 |
| 35 | 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 |
| 36 | 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 |
| 37 | 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 |
| 38 | Havas Media LIMITED | Unitedkingdom | Forstal | Havas House Hermitage Court | Kent | ME16 9NT | havas.***** | 1987 | $376,961,830 | 563 | N/A | N/A | 02103123 |
| 39 | The Kantar Group LIMITED | Unitedkingdom | Herne Hill | 30 Stamford Street | London | SE1 9LQ | N/A | 1994 | $354,729,169 | 564 | N/A | N/A | 02887671 |
| 40 | 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 |
| 41 | Kantar UK LIMITED | Unitedkingdom | Ealing | T N S House | London | W5 1UA | kantar.***** | 1967 | $339,292,552 | 1,754 | N/A | N/A | 03073845 |
| 42 | Shanxi Agricultural Sciences Academy | China | Taiyuan | No.81, Longcheng Street, Xiaodian District | Shanxi | 030006 | N/A | 2018 | $333,928,800 | 3,800 | N/A | N/A | 1214000040570061 |
| 43 | 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 |
| 44 | Ipsos Mori UK LIMITED | Unitedkingdom | Stepney | Thomas More Square | London | E1W 1YW | ipsos.***** | 1982 | $296,400,997 | 1,420 | N/A | N/A | 01640855 |
| 45 | Dongguan New Century Science And Education Development Co.,ltd. | China | Dongguan | Tianbei Road, Fenggangyantiancun Town | Guangdong | 523700 | N/A | 1997 | $288,250,330 | 16 | N/A | N/A | 441900000209386 |
| 46 | Iranian Oil Company (U.K.) LIMITED | Unitedkingdom | London | 24 Grosvenor Gardens | London | SW1W 0DH | iocukltd.***** | 1971 | $283,800,785 | 2 | N/A | N/A | 01019769 |
| 47 | He County Shenmo Education Consulting CO., LTD. | China | Maanshan | No.20-21, Building 26, New Town Jiayuan, He County | Anhui | 243000 | N/A | 2021 | $281,556,000 | 100 | N/A | N/A | 340500000561651 |
| 48 | Shell Research LIMITED | Unitedkingdom | Chester | Shell Technology Centre | Cheshire West and Chester | CH1 3SH | shell.***** | 1954 | $279,643,924 | 555 | N/A | N/A | 00539964 |
| 49 | Siping Shigao Education Technology CO., LTD. | China | Siping | Room No.103, Shangwang Unit, Building 11, West Side Fuhao Xinyu | Jilin | 136000 | N/A | 2021 | $277,398,000 | 100 | N/A | N/A | 220302MA84MEC265 |
| 50 | Wuhu Chengmang Information Consulting Services CO., LTD. | China | Wuhu | 04, Building 6, Jinse City, Xianfang Road, Jishan Town, Nanling | Anhui | 241000 | N/A | 2021 | $274,624,020 | 100 | N/A | N/A | 340223000178171 |