| 1 | Chinarailwayengineeringcorporation | China | Beijing | 920, Building 1, No. 128 Courtyard, South 4th Ring Road West, Fe | Beijing | 100070 | N/A | 1990 | $160,215,885,873 | 1 | N/A | N/A | 100000000010518 |
| 2 | Al Snafee Trading, General Contrcating, Consutling And Engineering Desgin CO. LTD | Iraq | Basra | Al-jazaer Street | N/A | N/A | N/A | 2009 | $100,384,788,000 | 121 | N/A | N/A | 14042 |
| 3 | Metallurgical CORPORATION Of China LTD. | China | Beijing | Zhongye Building, No.28, Shuguang Xili, Chaoyang District | Beijing | 100028 | N/A | 2008 | $76,188,784,463 | 93,450 | N/A | N/A | 100000000041958 |
| 4 | Metallurgical CORPORATION Of China LTD. | Hongkong | Wan Chai District | Rm 3205 32/f Convention Plz Office Twr | Wan Chai District | N/A | N/A | 2009 | $76,188,784,463 | 170 | N/A | N/A | 50544470 |
| 5 | Accenture LIMITED | Ireland | Dublin | 1 Grand Canal Square Grand Canal Harbour | Dublin | D02P820 | accenture.***** | 2001 | $61,594,305,000 | 693,748 | N/A | N/A | 340745 |
| 6 | China Energy Engineering CORPORATION LIMITED | Hongkong | Causeway Bay | 31/f Times Sq Twr 2 | Wan Chai District | N/A | N/A | 2015 | $60,273,784,583 | 30 | N/A | N/A | 65130185 |
| 7 | Siemens Energy AG | Germany | München | Otto-hahn-ring 6 | München | 81739 | yunextraffic.***** | 2016 | $38,483,308,815 | 98,000 | N/A | N/A | 80333B252581 |
| 8 | Fives Intralogistics Denmark, Filial Af Fives Intralogistics S.P.A, Italien | Denmark | København | Sundkrogsgade 21 | Hovedstaden | 2100 | N/A | 2022 | $29,423,034,319 | 4 | N/A | N/A | 43488163 |
| 9 | China National Chemical Engineering Group CORPORATION LIMITED | Hongkong | North Point | Rm 2308-9 23/f Two Chinachem Exchange Sq | Wan Chai District | N/A | N/A | 1996 | $28,095,839,947 | 24 | N/A | N/A | 20195479 |
| 10 | Barde Company For General Contracting LTD | Iraq | Sulaimanyah | Meer Palace | N/A | N/A | N/A | 2006 | $27,410,275,364 | 46 | N/A | N/A | 272 |
| 11 | China Construction Second Engineering Bureau LTD. | China | Beijing | 251, Beiyangwa, Liyuan Town, Tongzhou District | Beijing | 100000 | N/A | 1980 | $23,282,997,814 | 15,215 | N/A | N/A | 100000000024299 |
| 12 | Hunan Construction Investment Group Co.,ltd. | China | Changsha | Floor 1519, Jiangong New Town Comprehensive Building, Section 1, | Hunan | 410000 | N/A | 2022 | $21,259,175,045 | 280 | N/A | N/A | 430000000128000 |
| 13 | Shaanxi Construction Engineering Group CORPORATION LIMITED | China | Xi'An | No.199, North St., Lianhu District | Shaanxi | 710003 | N/A | 1998 | $20,859,700,159 | 32,283 | N/A | N/A | 610000100042685 |
| 14 | China Communications Services CORPORATION LTD. | China | Beijing | Building 1, No.1 Courtyard, Fenghuangzui Street, Fengtai Distric | Beijing | 100000 | N/A | 2006 | $20,702,564,216 | 76,686 | N/A | N/A | 100000000040483 |
| 15 | Sgs Canada INC | Canada | Mississauga | 204-6755 Mississauga Rd | Ontario | L5N 7Y2 | N/A | 2020 | $18,367,380,000 | 90,000 | N/A | N/A | 11782142 |
| 16 | Al-Ula Engineering Bureau (mue Group) | Iraq | Baghdad | House No. 33 No 607 Street No. 3 | N/A | N/A | N/A | 1991 | $18,116,563,589 | 5 | N/A | N/A | 8/3145 |
| 17 | China National Gold Group Co.,ltd. | China | Beijing | No.9, An Outer Street, Dongcheng District | Beijing | 100011 | N/A | 1984 | $17,931,887,985 | 171 | N/A | N/A | 100000000001620 |
| 18 | Brookfield Infrastructure Partners L.P. | Canada | Toronto | 100-181 Bay St | Ontario | M5J 2T3 | hsdpartners.***** | 2009 | $17,931,000,000 | 24,000 | N/A | N/A | N/A |
| 19 | Cosapi S.A. Agencia En Chile | Chile | Santiago | Av. Los Militares 5953 | Santiago | 7561282 | N/A | 2012 | $17,000,962,000 | 965 | N/A | N/A | 59176960K |
| 20 | Beijing Construction Engineering Group Co.,ltd. | China | Beijing | No. 1, Guanglian Road, Xicheng District | Beijing | 100055 | N/A | 1993 | $16,979,821,185 | 3,250 | N/A | N/A | 110000005019596 |
| 21 | Mattest (ireland) LIMITED | Ireland | Dublin | Unit 2 Northwest Business Park | Dublin | D15 EF1H | mattest.***** | 1976 | $16,943,249,180 | 66,466 | N/A | N/A | 55796 |
| 22 | Hidrotattersall S.A. | Chile | Talagante | Ruta G 40 1446 | Talagante | N/A | N/A | 2015 | $16,560,910,868 | 156 | N/A | N/A | 765177979 |
| 23 | Aecom | USA | Dallas | 13355 Noel Rd Ste 400 | Dallas | 75240 | aecom.***** | 1980 | $16,105,498,000 | 51,000 | N/A | N/A | 886293 |
| 24 | Energy Development Oman | Oman | Muscat | Mina al Fahal | Muscat Governorate | 116 | N/A | 2020 | $16,065,270,000 | 200 | N/A | N/A | 1378556 |
| 25 | China Tiesiju Civil Engineering Group CO., LIMITED | Newzealand | Auckland | U R, 383 Khyber Pass Road | Auckland | 1023 | N/A | 2018 | $15,347,004,575 | 6 | N/A | N/A | 7058535 |