| 1 | 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 |
| 2 | 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 |
| 3 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | 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 |
| 7 | 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 |
| 8 | 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 |
| 9 | Obayashi CORPORATION | Japan | Minato-ku | 2-15-2, Konan | Tōkyō | 108-0075 | N/A | 1892 | $17,570,397,306 | 17,305 | N/A | N/A | 7010401088742 |
| 10 | Al Foad CO. For General Contracting. | Iraq | Anbar | Al Taef Building al Mustawadea Street | N/A | N/A | N/A | 2016 | $15,798,634,784 | 20 | N/A | N/A | 440 |
| 11 | Hunan Jiehao Construction Engineering CO., LTD. Xinshao Branch | China | Xinshao | Building 1, Group 4, Lishan Community | Hunan | 422900 | N/A | 2020 | $15,332,486,194 | 9 | N/A | N/A | 430522300122327 |
| 12 | Sichuan Road & Bridge Group Co.,ltd. | China | Chengdu | No. 12 Jiuxing Avenue, High Tech Zone | Sichuan | 610041 | N/A | 1999 | $14,800,691,751 | 18,474 | N/A | N/A | 510000000088363 |
| 13 | Gansu Provincial Highway Aviation Tourism Investment Group Co.,ltd. | China | Lanzhou | No.1716 Nanchang Road, Chengguan Dist. | Gansu | 730030 | N/A | 1999 | $12,936,891,689 | 278 | N/A | N/A | 620000000012761 |
| 14 | Yunnan Communications Investment & Construction Group Co.,ltd. | China | Kunming | No.37, Qianxing Road | Yunnan | 650228 | N/A | 2006 | $11,860,157,722 | 11,821 | N/A | N/A | 530000000032484 |
| 15 | Jas Toll Road Company LIMITED | India | Nagpur Urban | 39, Ambazari Shakti | Maharashtra | 440010 | N/A | 2001 | $10,697,389,500 | 9 | N/A | N/A | AABCJ0659C |
| 16 | Cccc Second Highway Engineering Co.,ltd. | China | Xi'An | 33 Keji 6th Road, High Tech Development Zone | Shaanxi | 710061 | N/A | 1996 | $10,596,809,589 | 3,395 | N/A | N/A | 610000100000167 |
| 17 | Peter Kiewit Sons', INC. | USA | Omaha | 3555 Farnam St | Douglas | 68131 | kiewit.***** | 1997 | $10,411,329,791 | 14,700 | N/A | N/A | 2781337 |
| 18 | Shanghai Urban Construction (group) CORPORATION | China | Shanghai | 9th Floor, Shanghai Chengjian Building, 1099 Wanping South Road, | Shanghai | 200232 | N/A | 1996 | $10,160,935,203 | 100 | N/A | N/A | 310000000048069 |
| 19 | Shandong Hi-Speed Road & Bridge Group CO., LTD. | China | Jinan | No.14677, Jingshi Road, Lixia District | Shandong | 250014 | N/A | 1994 | $9,847,276,113 | 29,136 | N/A | N/A | 210600004016134 |
| 20 | Salah Al Deen Company For General Contracting LTD | Iraq | Baghdad | Al Taai Building Baghdad-kaharamna Sq | N/A | N/A | N/A | 2010 | $9,545,819,714 | 150 | N/A | N/A | 9614 |
| 21 | Tl Electricity Transmission Lines Company | Iraq | Erbil | Park View A2/37 | N/A | N/A | N/A | 2010 | $8,038,500,000 | 33 | N/A | N/A | 184 |
| 22 | Haseko CORPORATION | Japan | Minato-ku | 2-32-1, Shiba | Tōkyō | 105-0014 | N/A | 1937 | $7,895,329,218 | 8,307 | N/A | N/A | 7010401024061 |
| 23 | Rawat Al-Afnan Company For General Contracting And Trading And Engineering Consultants LTD | Iraq | Ramadi | 4th Engineers Street | N/A | 31001 | N/A | 2011 | $7,679,918,592 | 20 | N/A | N/A | 15668 |
| 24 | Heilongjiang Construction Group Co.,ltd. | China | Harbin | No.532, Sanda Dongli Road, Xiangfang District | Heilongjiang | 150040 | N/A | 2008 | $7,534,973,247 | 167 | N/A | N/A | 230000100063299 |
| 25 | Al-Sald Company For General Contract LTD. | Iraq | Baghdad | House 70 Palestine Street | N/A | N/A | N/A | 2001 | $6,983,098,117 | 30 | N/A | N/A | 9095 |
| 26 | Hainan Rongxia Municipal Engineering CO., LTD. | China | Haikou | 1501-3, Floor 15, Suite B, Jingrui Building, No.1, Guomao Avenue | Hainan | 570000 | N/A | 2021 | $6,928,015,050 | 110 | N/A | N/A | 460000004125544 |
| 27 | Cccc Third Harbor Engineering Co.,ltd. | China | Shanghai | No.139, Pingjiang Road, Xuhui District | Shanghai | 200032 | N/A | 1984 | $6,844,743,329 | 843 | N/A | N/A | 310104000010270 |
| 28 | China Railway 19 Bureau Group Co.,ltd. | China | Beijing | Building 1, No.19, Ronghua S. Road, Economic Technology Developm | Beijing | 100176 | N/A | 2001 | $6,612,190,343 | 1,838 | N/A | N/A | 211000004007802 |
| 29 | Zhejiang Communications Construction Group Co.,ltd. | China | Hangzhou | Qianjiang Mansion, No.2031, Jiangling Rd., Binjiang Dist. | Zhejiang | 310000 | N/A | 1999 | $6,603,760,955 | 4,318 | N/A | N/A | 330000000033642 |
| 30 | Porr AG | Austria | Wien | Absberggasse 47 | Wien | 1100 | porr.***** | 1867 | $6,546,525,482 | 20,665 | N/A | N/A | FN34853f |
| 31 | Fang County Xinyue Road Engineering CO., LTD. | China | Shiyan | Building 1, Group 3, Taoyuan Community, Chengguan Town, Fang Cou | Hubei | 442100 | N/A | 2017 | $6,496,647,858 | 110 | N/A | N/A | 420325000029977 |
| 32 | J.M. Mhatre | India | Panvel | Plot No 57/58 | Maharashtra | 410206 | jmminfra.***** | 1986 | $6,229,575,944 | 61 | N/A | N/A | 27480000654V |
| 33 | Ardh Al Bashaair Company Al Motahidah | Iraq | Dohuk | K.r.o Street | N/A | N/A | N/A | 2007 | $6,055,358,841 | 150 | N/A | N/A | 1800 |
| 34 | Beijing-Shanghai High Speed Railway Co.,ltd. | China | Beijing | Floor No.3,4, Office Building, No.1, No.5 Courtyard, Beifengwo R | Beijing | 100038 | N/A | 2008 | $5,818,397,713 | 86 | N/A | N/A | 100000000041425 |
| 35 | Adnan Al Mosawy Company For Constructions And Trading Contracts | Iraq | Baghdad | Al Saadon St | N/A | 10068 | N/A | 1985 | $5,490,413,184 | 190 | N/A | N/A | 179268 |
| 36 | Cpb Contractors PTY LIMITED | Australia | Sydney | L 2 177 Pacific Hwy | New South Wales | 2060 | cpbcon.***** | 1971 | $5,213,038,912 | 40,234 | N/A | N/A | 000893667 |
| 37 | Shanxi Qiangxun Architecture Engineering CO., LTD. | China | Taiyuan | Room 901, Unit 3, Building 16, Lihua Jia Di Yuan, No. 66 Wucheng | Shanxi | 030000 | N/A | 2020 | $5,129,525,428 | 2 | N/A | N/A | 140100061662076 |
| 38 | Cccc Construction Group Co.,ltd. | China | Beijing | 114 Jiaodaokou South Street, Dongcheng District | Beijing | 100022 | N/A | 1981 | $4,890,861,779 | 4,514 | N/A | N/A | 110000000003648 |
| 39 | Ashwini Construction Company | India | Mumbai | Nishil Apartments | Maharashtra | 400057 | ashwiniinfra.***** | 1981 | $4,746,352,653 | 38 | N/A | N/A | N/A |
| 40 | Henan Huanlong Construction Engineering CO., LTD. | China | Puyang | Shop No.107, Floor 1, Building A2, East Side Qingfeng Yizhou Che | Henan | 457000 | N/A | 2020 | $4,663,663,853 | 110 | N/A | N/A | 410900001145386 |
| 41 | Colas France | France | Paris | 1 Rue Du Colonel Pierre Avia | Paris | 75015 | colas.***** | 1984 | $4,569,888,402 | 18,397 | N/A | N/A | 32933888303413 |
| 42 | Sichuan Jiaotou Construction Engineering CO., LTD. | China | Chengdu | Area B, Area A, Floor 8, Sichuan High Speed Building, Section We | Sichuan | 610047 | N/A | 1999 | $4,448,692,526 | 1,853 | N/A | N/A | 510000000087527 |
| 43 | Cengiz Insaat Sanayi Ve Ticaret Anonim Sirketi | Turkey | Salacak | No:37 Altunizade Mahallesi | İstanbul | 34662 | cengiz.***** | 1987 | $4,392,453,000 | 33,500 | N/A | N/A | 225 |
| 44 | Ch2m Hill Companies, LTD. | USA | Greenwood Village | 6312 S Fiddlers Green Cir Ste 300n | Arapahoe | 80111 | N/A | 2017 | $4,292,758,348 | 20,000 | N/A | N/A | 5005283 |
| 45 | Tibet Tangdong Road Bridge Engineering CO., LTD. Namling County Branch | China | Xigaze | Jiagang N. Road, Namling County | Tibet | 857000 | N/A | 2019 | $4,043,083,594 | 5 | N/A | N/A | 540221280000787 |
| 46 | Zhejiang Expressway CO., LTD. | China | Hangzhou | 12th Floor, Building A, Huanglong Century Plaza, No.1 Hangda Roa | Zhejiang | 310007 | N/A | 1997 | $3,824,631,182 | 10,358 | N/A | N/A | 330000400002278 |
| 47 | Ataa Alyasmin Company For General Contracting LTD | Iraq | Baghdad | Al Mansour Near Alsaa Restaurant | N/A | N/A | N/A | 2012 | $3,812,049,624 | 10 | N/A | N/A | 79626 |
| 48 | Ctci CORPORATION | Taiwan | Shilin District | No. 89, Sec. 6, Zhongshan N. Rd. | Taipei City | 111046 | N/A | 1979 | $3,691,879,334 | 3,455 | N/A | N/A | 20817282 |
| 49 | Si County Yuteng Construction Engineering CO., LTD. | China | Suzhou | Area A, Yulan Area, Economic Development Zone, Si County | Anhui | 234000 | N/A | 2016 | $3,676,120,272 | 2 | N/A | N/A | 341324000056060 |
| 50 | Gansu Highway Traffic Construction Group Co.,ltd. | China | Lanzhou | Floor 2729, Floor Soho Xiezi, Lanzhou, No.9, Minzhu W. Road, Che | Gansu | 730000 | N/A | 2014 | $3,661,483,633 | 112 | N/A | N/A | 620000000020528 |