| 1 | Al-Qabas General Contracting CO. LTD. | Iraq | Baghdad | Building No. 26 Al-mansour Street, 14 Rammadhan St | N/A | N/A | N/A | 1988 | $164,848,276,159 | 560 | N/A | N/A | 2367 |
| 2 | Noble Consolidated Glazings LIMITED | India | Chennai | No.5, Ii Link Street, | Tamil Nadu | 600004 | N/A | 2007 | $15,202,818,129 | 2 | N/A | N/A | AACCN5454A |
| 3 | The Whiting-Turner Contracting Company | USA | Baltimore | 300 E Joppa Rd | Baltimore City | 21286 | whiting-turner.***** | 1934 | $12,522,114,874 | 4,560 | N/A | N/A | D00244731 |
| 4 | Doosan Enerbility CO., LTD. | Southkorea | Changwon | 22 Doosan Volvo-ro, Seongsan-gu | South Gyeongsang | 51711 | N/A | 1964 | $11,655,333,490 | 6,061 | N/A | N/A | 6098104684 |
| 5 | Paul Schröder Bauunternehmung GMBH | Germany | Lunden | Wilhelmstr. 35 | Dithmarschen | 25774 | varioself.***** | 1977 | $11,257,115,200 | 32 | N/A | N/A | 25421B4ME |
| 6 | Hyundai Engineering & Construction Company, LIMITED | Hongkong | Tai Kok Tsui | Rm 802 8/f New Kowloon Plz | Yau Tsim Mong District | N/A | N/A | 1983 | $8,350,821,248 | 18 | N/A | N/A | 08704030 |
| 7 | Al Mazrouei Bowyer Building L.l.c.(amb) | United Arab Emirates | Dubai | Po Box 51445 | Dubai | N/A | N/A | N/A | $8,114,900,000 | 50,000 | N/A | N/A | N/A |
| 8 | Cbs Ingenieria Y Proyectos S.P.A. | Chile | Quillota | Carrera 590 | Quillota | 2260000 | N/A | 2015 | $7,653,564,785 | 556 | N/A | N/A | 764777654 |
| 9 | China Railway 20 Bureau Group CORPORATION Co.,ltd. | China | Xi'An | No.89, Taihua N. Road, Weiyang District | Shaanxi | 710016 | N/A | 1993 | $6,717,701,441 | 3,779 | N/A | N/A | 610000100041081 |
| 10 | China First Metallurgical Group CO., LTD. | China | Wuhan | Block 36, Qingshan District (yiye Technology Building, No. 3 Gon | Hubei | 430081 | N/A | 1990 | $6,222,808,639 | 4,687 | N/A | N/A | 420100000056585 |
| 11 | Babylon Company For Precast Building LTD./ Private Company | Iraq | Baghdad | Mariam Alathrai Church, Bldg No 4 Karada Area No: 929 | N/A | N/A | N/A | 2011 | $5,843,565,299 | 250 | N/A | N/A | 02-000079066 |
| 12 | Gilbane, INC. | USA | Providence | 7 Jackson Walkway | Providence | 02903 | gilbaneco.***** | 1908 | $5,604,901,562 | 2,500 | N/A | N/A | 000010771 |
| 13 | Shanghai Construction NO.1 (group) CO., LTD. | China | Shanghai | Floor 25-27, No.33, Fushan Road, China(shanghai) Pilot Free Trad | Shanghai | 200120 | N/A | 1993 | $5,349,493,374 | 2,900 | N/A | N/A | 310115000168634 |
| 14 | Walbridge Aldinger LLC | USA | Detroit | 777 Woodward Ave Ste 300 | Wayne | 48226 | walbridge.***** | 1916 | $5,012,685,511 | 1,000 | N/A | N/A | 381141440 |
| 15 | Sama Al Etihad Al Khaliji For General Trading & Contracting Company LIMITED Responsibility | Iraq | Tikrit | Hay Ima Aamad Main Street | N/A | N/A | N/A | 2009 | $4,823,164,308 | 15 | N/A | N/A | 000071960-02-MSH |
| 16 | Fujian Liujian Construction Group Co.,ltd. | China | Fuzhou | Floor 23, Fusheng Building, No.3, Fuxing Avenue, Jin'An District | Fujian | 350003 | N/A | 1993 | $4,155,155,626 | 423 | N/A | N/A | 350100100083324 |
| 17 | Consolidated Interiors LIMITED | India | Chennai | 2nd Lin 5, 2nd Lin Cit Colony | Tamil Nadu | 600004 | N/A | 2006 | $4,148,943,110 | 1 | N/A | N/A | AACCC8135D |
| 18 | Dl Holdings CO., LTD. | Southkorea | Seoul | 134 Tongil-ro, Jongno-gu | Seoul | 03181 | N/A | 1939 | $4,031,834,224 | 1,291 | N/A | N/A | 1168135007 |
| 19 | Doosan Enerbility CO., LTD. | Southkorea | Changwon | 22 Doosanvolvo-ro, Seongsan-gu | South Gyeongsang | 51711 | N/A | N/A | $3,975,996,245 | 6,215 | N/A | N/A | 6098104684 |
| 20 | Robert Bosch North America CORPORATION | USA | Oakbrook Terrace | 1 Tower Ln Ste 3100 | Dupage | 60181 | N/A | 2006 | $3,864,166,379 | 1,247 | N/A | N/A | 208094708 |
| 21 | Swinerton Builders | USA | Concord | 2001 Clayton Rd Ste 700 | Contra Costa | 94520 | swinerton.***** | 1963 | $3,675,571,000 | 76 | N/A | N/A | 0053868 |
| 22 | Graham Income Trust | Canada | Calgary | 10840 27 St Se | Alberta | T2Z 3R6 | grahambuilds.***** | 2005 | $3,491,960,000 | 5,000 | N/A | N/A | N/A |
| 23 | Pcl Construction Group INC | Canada | Edmonton | 9915 56 Ave Nw | Alberta | T6E 5L7 | pcl.***** | 1922 | $3,072,924,800 | 4,400 | N/A | N/A | N/A |
| 24 | Aecon Group INC | Canada | Toronto | 105-20 Carlson Crt | Ontario | M9W 7K6 | aecon.***** | 1957 | $3,024,354,424 | 8,684 | N/A | N/A | 0135607 |
| 25 | Aecon Construction Group, INC | Canada | Toronto | 20 Carlson Crt Suite 105 | Ontario | M9W 7K6 | aecon.***** | 1926 | $2,984,229,016 | 4,273 | N/A | N/A | 8027226 |
| 26 | Enka Insaat Ve Sanayi Anonim Sirketi | Turkey | Yıldız | Zincirlikuyu Yolu, No:10 Balmumcu Mahallesi | İstanbul | 34349 | enka.***** | 2002 | $2,901,423,865 | 24,805 | N/A | N/A | 68194 |
| 27 | Alberici CORPORATION | USA | Saint Louis | 8800 Page Ave | St. Louis City | 63114 | alberici.***** | 1985 | $2,459,266,656 | 2,080 | N/A | N/A | 431387500 |
| 28 | Pcl Constructors INC | Canada | Edmonton | 9915 56 Ave Nw | Alberta | T6E 5L7 | pcl.***** | 1984 | $2,444,372,000 | 3,500 | N/A | N/A | N/A |
| 29 | Obayashi Middle East Construction L.L.C | United Arab Emirates | Dubai | Deira Office No. 804, Floor 8, Twin Tower, Baniyas Road | Dubai | N/A | N/A | 2013 | $2,433,333,914 | 14,993 | N/A | N/A | 682050 |
| 30 | Ncc LIMITED | India | Hyderabad | Survey No 64, Ncc House, Madhapur | Telangana | 500081 | N/A | 1990 | $2,190,678,195 | 25,794 | N/A | N/A | 36AAACN7335C1ZQ |
| 31 | Tic Holdings, INC. | USA | Englewood | 9780 Pyramid Ct Ste 100 | Arapahoe | 80112 | tic-inc.***** | 2008 | $2,146,871,546 | 5,500 | N/A | N/A | 19871651667 |
| 32 | Ventia PTY LIMITED | Australia | Sydney | L 8 80 Pacific Hwy | New South Wales | 2060 | ventia.***** | 2014 | $2,118,208,716 | 15,639 | N/A | N/A | 603146676 |
| 33 | Pcl Industrial Constructors INC | Canada | Edmonton | 9915 56 Ave Nw | Alberta | T6E 5L7 | pcl.***** | 1947 | $1,885,658,400 | 2,700 | N/A | N/A | N/A |
| 34 | Graham Management Services LP | Canada | Calgary | 10840 27 St Se | Alberta | T2Z 3R6 | grahambuilds.***** | 2012 | $1,885,658,400 | 2,700 | N/A | N/A | N/A |
| 35 | Dezhou Deda Investment Holding Group Co.,ltd. | China | Dezhou | Block C, Dezhou Business Center, No. 769 Dongfeng East Road, Cha | Shandong | 253000 | N/A | 2006 | $1,881,501,571 | 48 | N/A | N/A | 371400018033607 |
| 36 | Thiess PTY LTD | Australia | Brisbane | L 5 179 Grey St | Queensland | 4101 | thiess.***** | 1981 | $1,831,202,880 | 13,520 | N/A | N/A | 010221486 |
| 37 | Tic - The Industrial Company | USA | Lone Tree | 10055 Trainstation Cir | Douglas | 80124 | N/A | 1974 | $1,821,941,037 | 4,000 | N/A | N/A | 940455 |
| 38 | Nantong Xinhua Construction Group CO., LTD. | China | Nantong | No. 34, Xinjin Road, Jinsha Town, Tongzhou District | Jiangsu | 226399 | N/A | 1958 | $1,812,944,783 | 1,439 | N/A | N/A | 320683000125594 |
| 39 | Commodore Qatar Contracting CO. | Qatar | Doha | Opposite Gulftimes News Paper, C Ring Road | Ad Dawhah (doha) | N/A | N/A | 1999 | $1,785,278,000 | 11,000 | N/A | N/A | 4312 |
| 40 | Zhongsha Construction Group CO., LTD. | China | Shaoxing | No. 77, Huanzhen East Road, Pingshui Town, Keqiao District | Zhejiang | 312050 | N/A | 2001 | $1,749,618,768 | 89 | N/A | N/A | 330621000223299 |
| 41 | Big-D Construction CORP. | USA | Salt Lake City | 404 W 400 S | Salt Lake | 84101 | big-d.***** | 1980 | $1,659,132,522 | 1,384 | N/A | N/A | 738840-0142 |
| 42 | Building And Installing Engineer CO., LTD. Of China Railway 12th Bureau Group | China | Taiyuan | Hengda Weilai City, Xiaodian District | Shanxi | 030024 | N/A | 1989 | $1,624,232,508 | 2,445 | N/A | N/A | 140000100059924 |
| 43 | Gulf Contracting CO WLL | Qatar | Doha | Gulf Contracting Co. (w.l.l.) Building al Salata al Jadeeda Area | Ad Dawhah (doha) | N/A | N/A | 1976 | $1,622,980,000 | 10,000 | N/A | N/A | 00001141 |
| 44 | The Conlan Company | USA | Marietta | 1850 Parkway Pl Se Ste 1200 | Cobb | 30067 | conlancompany.***** | 1987 | $1,519,878,358 | 391 | N/A | N/A | J721105 |
| 45 | Lockerbie & Hole INC | Canada | Edmonton | 14940 121a Ave Nw | Alberta | T5V 1A3 | lockerbiehole.***** | 2007 | $1,403,767,920 | 2,010 | N/A | N/A | N/A |
| 46 | Köster GMBH | Germany | Osnabrück | Sutthauser Straße 280 | Osnabrück, Stadt | 49080 | koester-bau.***** | 2019 | $1,399,403,728 | 1,774 | N/A | N/A | 49074B203648 |
| 47 | Ellisdon Construction LTD | Canada | Mississauga | 1000-1004 Middlegate Rd | Ontario | L4Y 1M4 | ellisdon.***** | 1951 | $1,396,784,000 | 2,000 | N/A | N/A | N/A |
| 48 | V.R. Constructions | India | Hyderabad | Plot No 30 & 31, Flat No 401 Sri Sai Ram Prestige | Telangana | 500038 | N/A | 2007 | $1,368,677,273 | 8 | N/A | N/A | APKKP0059313000 |
| 49 | Srg Global Facades (wa) PTY LTD | Australia | Perth | Level 2 500 Hay Street | Western Australia | 6008 | srgglobal.***** | 2015 | $1,354,440,000 | 10,000 | N/A | N/A | 604493174 |
| 50 | Ica Fluor Daniel, S. De R.L. De C.V. | Mexico | Benito Juárez | Dakota No. 95 | Distrito Federal | 03810 | fluor.***** | 2014 | $1,221,275,668 | 14,867 | N/A | N/A | IFD930630HL2 |