| 1 | China Railway Group LIMITED | China | Beijing | Building 9, No. 69, Fuxing Road, Haidian District | Beijing | 100000 | N/A | 2007 | $160,142,702,634 | 297,359 | N/A | N/A | 100000000041175 |
| 2 | China Railway Group LIMITED | Hongkong | Kwun Tong District | Rm 1201-03 12/f Apec Plz | Kwun Tong District | N/A | N/A | 2007 | $160,142,643,287 | 16 | N/A | N/A | 38648062 |
| 3 | China Railway Construction CORPORATION LIMITED | Hongkong | Tsim Sha Tsui | 23/f Railway Plz | Yau Tsim Mong District | N/A | N/A | 2008 | $147,287,786,419 | 120 | N/A | N/A | 38914934 |
| 4 | China Communications Construction Group LTD. | China | Beijing | No.85, Deshengmen Outer Street, Xicheng District, Shixia Distric | Beijing | 100088 | N/A | 2005 | $138,261,936,148 | 125 | N/A | N/A | 100000000039954 |
| 5 | China Communications Construction Company LIMITED | Hongkong | Wan Chai District | Rm 2805 28/f Convention Plz Office Twr | Wan Chai District | N/A | N/A | 2006 | $106,030,594,131 | 30 | N/A | N/A | 37383114 |
| 6 | Power Construction CORPORATION Of China | China | Beijing | 9th Floor, Building 1, No. 1 Linglongxiang Road, Haidian Distric | Beijing | 100037 | N/A | 2011 | $99,136,069,450 | 1 | N/A | N/A | 100000000043994 |
| 7 | Power Construction CORPORATION Of China,ltd(powerchina LTD) | China | Beijing | Building 1, Courtyard 1, Linglong Lane Road, Haidian District (b | Beijing | 100037 | N/A | 2009 | $87,578,979,808 | 163,912 | N/A | N/A | 100000000042397 |
| 8 | Jomda County Miti Architecture CO., LTD. | China | Qamdo | 200, Dajingwu Station, Duo Village, Jomda County | Tibet | N/A | N/A | 2016 | $73,163,892,360 | 9 | N/A | N/A | 540321200000765 |
| 9 | Rossaro Bauunternehmung GMBH U. Co.kg | Germany | Aalen | Carl-zeiss-str. 79 | Ostalbkreis | 73431 | rossaro.***** | 1879 | $53,920,661,200 | 135 | N/A | N/A | 89073A500306 |
| 10 | China Energy Engineering Group CO., LTD. | China | Beijing | Room 01-2701, 1st to 24th Floor, Building 1, No. 26, Xidawang Ro | Beijing | 100022 | N/A | 2011 | $50,795,784,500 | 2,779 | N/A | N/A | 100000000044001 |
| 11 | China Railway Construction CORPORATION LIMITED | China | Beijing | Dong Courtyard, No.40, Fuxing Road, Haidian District | Beijing | 100855 | N/A | 2007 | $50,185,802,205 | 269,577 | N/A | N/A | 100000000041302 |
| 12 | China Construction Third Engineering Group CO., LTD | China | Wuhan | No.552, Guanshan Road | Hubei | 430064 | N/A | 2003 | $48,640,074,527 | 14,235 | N/A | N/A | 420000400000435 |
| 13 | Anwar Alreef Company For General Trading, General Contracts With LIMITED Liability | Iraq | Salah Adien | Main Street | N/A | N/A | N/A | 2010 | $44,288,787,672 | 32 | N/A | N/A | 75998-02-msh |
| 14 | Hubei Dayu Construction CO., LTD. Huangpi Branch | China | Wuhan | No. 56 Zhangjia Dawan, Daozichong Village, Caidian Street, Huang | Hubei | 430000 | N/A | 2021 | $36,585,443,554 | 0 | N/A | N/A | 420116000375117 |
| 15 | Hochtief AG | Germany | Essen | Alfredstr. 236 | Essen, Stadt | 45133 | hochtief.***** | 2023 | $35,216,359,435 | 52,906 | N/A | N/A | 45130B279 |
| 16 | Samsung C&T CORPORATION | Australia | Sydney | Se 203 L 2 44 Market St | New South Wales | 2000 | samsungcnt.***** | 2012 | $32,092,091,646 | 5 | N/A | N/A | 160079470 |
| 17 | Samsung C&T CORPORATION | Southkorea | Seoul | 26 Sangil-ro 6-gil, Gangdong-gu | Seoul | 05288 | N/A | 1963 | $30,230,124,884 | 9,335 | N/A | N/A | 2028145975 |
| 18 | Hochtief Infrastructure GMBH | Austria | Wien | Modecenterstraße 17/objekt 2/6. Og | Wien | 1110 | hochtief.***** | 2013 | $30,170,017,077 | 681 | N/A | N/A | FN417357k |
| 19 | Hussien Assaf Aboud Company For General Contracting L.L.C | Iraq | Baghdad | Alrabee Street, Baghdad Hay al Jamiaa | N/A | N/A | N/A | 2016 | $27,103,365,187 | 1 | N/A | N/A | 938 |
| 20 | Heilongjiang Beidahuang Land Reclamation Group CORPORATION | China | Harbin | No.175, Hongqi Avenue, Xiangfang District | Heilongjiang | 150036 | N/A | 1994 | $26,534,081,548 | 433 | N/A | N/A | 233000100002288 |
| 21 | Alaa Al-Iraq Company For General Contracts LTD | Iraq | Alramadi | 20th Street | N/A | N/A | N/A | 2016 | $25,544,526,010 | 11 | N/A | N/A | 02-706554 |
| 22 | China Construction Fifth Engineering Division Corp.,ltd. | China | Changsha | 158 Zhongyi 1st Road | Hunan | 410004 | N/A | 1981 | $25,324,441,351 | 6,460 | N/A | N/A | 430000000017008 |
| 23 | Wadi Al Zaitoon Company | Iraq | Basra | Jamaa Street | N/A | N/A | N/A | 2004 | $24,924,506,707 | 25 | N/A | N/A | 18814 |
| 24 | Hubei Zhuoda Construction Engineering CO., LTD. | China | Enshi Tujia and Miao Autonomou | No.1002, Unit 1, Building 3, Wanfu International Shopping Mall, | Hubei | 445000 | N/A | 2021 | $22,542,922,416 | 36 | N/A | N/A | 422801000377192 |
| 25 | Yunnan Construction And Investment Holding Group Co.,ltd. | China | Kunming | No. 188, Linxi Rd., Information Industry Base, Economic and Tech | Yunnan | 650051 | N/A | 2016 | $22,105,940,394 | 2,273 | N/A | N/A | 530000011012827 |