| 1 | Rio Tinto Alcan INC. | Canada | Montréal | 1190 Av Des Canadiens-de-montreal Bureau 400 | Québec | H3B 0E3 | riotintoalcan.***** | 2007 | $9,772,176,000 | 24,000 | N/A | N/A | 4462742 |
| 2 | Martinrea International INC | Canada | Vaughan | 3210 Langstaff Rd | Ontario | L4K 5B2 | martinrea.***** | 1996 | $3,574,230,178 | 18,400 | N/A | N/A | N/A |
| 3 | Novelis INC | Canada | Kingston | 1 Lappan'S Ln | Ontario | K7L 4Z5 | novelis.***** | 2022 | $2,918,772,000 | 12,000 | N/A | N/A | 14145712 |
| 4 | Algoma Steel Group INC | Canada | Sault Ste Marie | 105 West St | Ontario | P6A 7B4 | algoma.***** | 1901 | $2,067,239,682 | 99 | N/A | N/A | N/A |
| 5 | Gerdau Ameristeel CORPORATION | Canada | Whitby | 1 Gerdau Crt | Ontario | L1N 5T1 | gerdau.***** | 1970 | $1,954,435,200 | 4,800 | N/A | N/A | 8366705 |
| 6 | Canadian Solar INC | Canada | Kitchener | 650 Riverbend Dr | Ontario | N2K 3S2 | canadiansolar.***** | 2001 | $1,521,241,000 | 13,478 | N/A | N/A | N/A |
| 7 | Multimatic INC | Canada | Markham | 8688 Woodbine Ave Suite 200 | Ontario | L3R 8B9 | multimatic.***** | 2015 | $1,459,386,000 | 6,000 | N/A | N/A | N/A |
| 8 | Gestion Alcoa Canada Cie | Canada | Montréal | 1250 Boul Rene-levesque O Bureau 3930 | Québec | H3B 4W8 | alcoa.***** | 1996 | $1,425,109,000 | 3,500 | N/A | N/A | N/A |
| 9 | Algoma Steel INC | Canada | Sault Ste Marie | 105 West St | Ontario | P6A 7B4 | algoma.***** | 2016 | $1,221,522,000 | 3,000 | N/A | N/A | N/A |
| 10 | Old Steelco INC | Canada | Sault Ste Marie | 105 West St | Ontario | P6A 7B4 | algoma.***** | 1901 | $1,180,804,600 | 2,900 | N/A | N/A | 8914052 |
| 11 | AG Growth International INC | Canada | Winnipeg | 198 Commerce Dr | Manitoba | R3P 0Z6 | aggrowth.***** | 1996 | $1,111,419,612 | 4,987 | N/A | N/A | 15638810 |
| 12 | Arcelormittal Dofasco G.P. | Canada | Hamilton | 1330 Burlington St E | Ontario | L8N 3J5 | dofasco.***** | 1912 | $1,094,539,500 | 4,500 | N/A | N/A | N/A |
| 13 | Windsor Machine & Stamping (2009) LTD | Canada | Windsor | 2187 Huron Church Rd Unit 340a | Ontario | N9C 2L8 | windsormachine.***** | 2013 | $1,058,652,400 | 2,600 | N/A | N/A | N/A |
| 14 | Groupe Canam INC | Canada | Saint-georges | 11505 1re Av Bureau 500 | Québec | G5Y 7H5 | canam.***** | 2020 | $1,038,353,139 | 4,269 | N/A | N/A | N/A |
| 15 | Interpro Pipe & Steel INC | Canada | Regina | 100 Armour Rd | Saskatchewan | S4P 3C7 | ipsco.***** | 2025 | $936,500,200 | 2,300 | N/A | N/A | 11817078 |
| 16 | Alcoa Canada Cie | Canada | Montréal | 2310-1 Place Ville-marie | Québec | H3B 3M5 | alcoa.***** | 1994 | $916,955,848 | 2,252 | N/A | N/A | N/A |
| 17 | Stelco INC | Canada | Hamilton | 386 Wilcox St | Ontario | L8L 8K5 | stelco.***** | 2024 | $895,782,800 | 2,200 | N/A | N/A | 16508511 |
| 18 | Rio Tinto Fer Et Titane INC. | Canada | Sorel-tracy | 1625 Rte Marie-victorin | Québec | J3R 1M6 | rtft.***** | 1950 | $732,913,200 | 1,800 | N/A | N/A | 1146439816 |
| 19 | Canerector INC | Canada | Toronto | 1 Sparks Ave | Ontario | M2H 2W1 | marshallbarwick.***** | 2018 | $625,369,600 | 3,000 | N/A | N/A | 11796453 |
| 20 | Ap Infrastructure Solutions LP | Canada | Concord | 500-3300 Highway 7 | Ontario | L4K 4M3 | apisolutions.***** | 2018 | $570,043,600 | 1,400 | N/A | N/A | N/A |
| 21 | Wgi Westman Group INC | Canada | Springfield | 2976 Day St | Manitoba | R5R 0H7 | westmangroup.***** | 1976 | $486,462,000 | 2,000 | N/A | N/A | N/A |
| 22 | Neo Performance Materials INC | Canada | Toronto | 121 King St W Suite 1740 | Ontario | M5H 3T9 | molycorp.***** | 2005 | $475,828,000 | 1,853 | N/A | N/A | N/A |
| 23 | Exco Technologies LIMITED | Canada | Markham | 130 Spy Crt Fl 2 | Ontario | L3R 5H6 | excocorp.***** | 1986 | $473,719,265 | 6,594 | N/A | N/A | N/A |
| 24 | L.S. Metal Foundry INC | Canada | Oakville | 1123 South Service Rd W | Ontario | L6L 6K4 | lsmetal.***** | 1984 | $453,470,000 | 2,500 | N/A | N/A | N/A |
| 25 | Societe Holding Velan Ltee | Canada | Montréal | 7007 Ch de la Cote-de-liesse | Québec | H4T 1G2 | velan.***** | 1979 | $437,815,800 | 1,800 | N/A | N/A | N/A |
| 26 | Trevluc Holdings LTD | Canada | Springfield | 2976 Day St | Manitoba | R5R 0H7 | N/A | 1982 | $413,492,700 | 1,700 | N/A | N/A | N/A |
| 27 | Arcelormittal Produits Longs Canada S.e.n.c. | Canada | Contrecoeur | 4000 Rte Des Acieries | Québec | J0L 1C0 | long-canada.***** | 2015 | $407,174,000 | 1,000 | N/A | N/A | N/A |
| 28 | Triple M Metal LP | Canada | Brampton | 101-1 Kenview Blvd | Ontario | L6T 5E6 | triplemmetal.***** | 2008 | $407,174,000 | 1,000 | N/A | N/A | N/A |
| 29 | La Compagnie Americaine De Fer & Metaux INC. | Canada | Montréal-est | 9100 Boul Henri-bourassa E | Québec | H1E 2S4 | cambecdiesel.***** | 2014 | $407,174,000 | 1,000 | N/A | N/A | 9133496 |
| 30 | Hydro Aluminium Canada INC | Canada | Pointe-claire | 325 Av Avro | Québec | H9R 5W3 | N/A | 1988 | $367,270,948 | 902 | N/A | N/A | N/A |
| 31 | Litens Automotive Partnership | Canada | Woodbridge | 730 Rowntree Dairy Rd | Ontario | L4L 5T7 | litens.***** | 1979 | $364,846,500 | 1,500 | N/A | N/A | N/A |
| 32 | Velan INC. | Canada | Montréal | 7007 Ch de la Cote-de-liesse | Québec | H4T 1G2 | velan.***** | 1952 | $346,816,000 | 1,800 | N/A | N/A | N/A |
| 33 | Nucor Steel Ulc | Canada | Hamilton | 318 Arvin Ave | Ontario | L8E 2M2 | harrisrebar.***** | 2020 | $340,523,400 | 1,400 | N/A | N/A | N/A |
| 34 | Orlick Industries LIMITED | Canada | Hamilton | 411 Parkdale Ave N | Ontario | L8H 5Y4 | orlick.***** | 1947 | $305,380,500 | 750 | N/A | N/A | N/A |
| 35 | 5n Plus INC | Canada | Montreal | 4385 Garand St | Quebec | H4R 2B4 | 5nplus.***** | 2007 | $289,281,000 | 800 | N/A | N/A | 4450248 |
| 36 | Ivaco Rolling Mills 2004 L.P. | Canada | L'Orignal | 1040 Hwy 17 | Ontario | K0B 1K0 | ivacorm.***** | 1970 | $285,021,800 | 700 | N/A | N/A | N/A |
| 37 | Aim Metaux & Alliages INC | Canada | Montréal-est | 9100 Boul Henri-bourassa E | Québec | H1E 2S4 | cambecdiesel.***** | 1977 | $262,255,170 | 500 | N/A | N/A | 6884601 |
| 38 | Welded Tube Of Canada CORP | Canada | Concord | 111 Rayette Rd | Ontario | L4K 2E9 | weldedtube.***** | 2012 | $244,304,400 | 600 | N/A | N/A | N/A |
| 39 | Noranda Income LIMITED Partnership | Canada | Toronto | 100 King St W Suite 6900 | Ontario | M5X 2A1 | xstratanickel.***** | 2002 | $244,304,400 | 600 | N/A | N/A | N/A |
| 40 | General Dynamics Produits De Defense Et Systèmes Tactiques-Canada INC | Canada | Repentigny | 5 Montee Des Arsenaux | Québec | J5Z 2P4 | gd-otscanada.***** | 1989 | $243,231,000 | 1,000 | N/A | N/A | N/A |
| 41 | Aluminerie De Becancour INC | Canada | Bécancour | 5555 Rue Pierre-thibault | Québec | G9H 2T7 | alcoa.***** | 1984 | $243,231,000 | 1,000 | N/A | N/A | N/A |
| 42 | Imperial Manufacturing Group INC | Canada | Richibucto | 40 Industrial Park St | New Brunswick | E4W 4A4 | imperialgroup.***** | 2018 | $243,231,000 | 1,000 | N/A | N/A | N/A |
| 43 | General Dynamics Produits De Defense Et Systèmes Tactiques-Canada INC | Canada | Repentigny | 5 Montee Des Arsenaux | Québec | J5Z 2P4 | gd-otscanada.***** | 1989 | $243,231,000 | 1,000 | N/A | N/A | 2420104 |
| 44 | Lee Valley Holdings LIMITED | Canada | Ottawa | 1090 Morrison Dr | Ontario | K2H 1C2 | leevalley.***** | 1983 | $243,231,000 | 1,000 | N/A | N/A | 1451022 |
| 45 | Cleveland-Cliffs Tooling And Stamping Canada Holdings INC | Canada | Windsor | 1965 Ambassador Dr | Ontario | N9C 3R5 | electromac.***** | 1955 | $239,582,535 | 985 | N/A | N/A | N/A |
| 46 | Algoma Tubes INC | Canada | Sault Ste Marie | 547 Wallace Terr | Ontario | P6C 1L9 | tenaris.***** | 2005 | $223,945,700 | 550 | N/A | N/A | N/A |
| 47 | Guelph Manufacturing Group INC | Canada | Guelph | 39 Royal Rd | Ontario | N1H 1G2 | guelphtool.***** | 1968 | $218,907,900 | 900 | N/A | N/A | N/A |
| 48 | Stanley Black & Decker Canada CORPORATION | Canada | Mississauga | 6275 Millcreek Dr | Ontario | L5N 7K6 | stanleyblackanddecker.***** | 1916 | $206,746,350 | 850 | N/A | N/A | N/A |
| 49 | Kuntz Electroplating INC | Canada | Kitchener | 851 Wilson Ave | Ontario | N2C 1J1 | kuntz.***** | 1948 | $206,746,350 | 850 | N/A | N/A | N/A |
| 50 | Tisi Canada INC | Canada | Oakville | 781 Westgate Rd | Ontario | L6L 6R7 | teaminc.***** | 2008 | $203,587,000 | 500 | N/A | N/A | N/A |
| 51 | Bradken Canada Manufactured Products LTD | Canada | Toronto | 90 Richmond St E Suite 4000 | Ontario | M5C 1P1 | bradken.***** | 1956 | $203,587,000 | 500 | N/A | N/A | N/A |
| 52 | Metso Canada INC | Canada | Burlington | 5045 S Service Rd | Ontario | L7L 5Y7 | N/A | 2023 | $203,179,826 | 499 | N/A | N/A | 14624432 |
| 53 | Dbg Group LTD | Canada | Mississauga | 110 Ambassador Dr | Ontario | L5T 2X8 | debiasi.***** | 2003 | $175,126,320 | 720 | N/A | N/A | N/A |
| 54 | Hammond Manufacturing Company LIMITED | Canada | Guelph | 394 Edinburgh Rd N | Ontario | N1H 1E5 | hammfg.***** | 1944 | $174,571,131 | 659 | N/A | N/A | N/A |
| 55 | Ecco Heating Products LTD | Canada | Edmonton | 14310 111 Ave Nw Suite 400 | Alberta | T5M 3Z7 | theeccogroup.***** | 1961 | $171,721,086 | 706 | N/A | N/A | N/A |
| 56 | Airtex Manufacturing Partnership | Canada | Calgary | 1401 Hastings Cres Se | Alberta | T2G 4C8 | engair.***** | 1964 | $170,261,700 | 700 | N/A | N/A | N/A |
| 57 | Cape-Man Holdings LTD | Canada | St. Albert | 11 Estate Cres | Alberta | T8N 5X2 | N/A | 1981 | $170,261,700 | 700 | N/A | N/A | N/A |
| 58 | Price Industries LIMITED | Canada | Winnipeg | 638 Raleigh St | Manitoba | R2K 3Z9 | price-hvac.***** | 2009 | $170,261,700 | 700 | N/A | N/A | N/A |
| 59 | Bend All Automotive Ulc | Canada | Ayr | 575 Waydom Dr | Ontario | N0B 1E0 | bend-all.***** | 1976 | $170,261,700 | 700 | N/A | N/A | N/A |
| 60 | Molycop LTD | Canada | Kamloops | 250 Andover Cres | British Columbia | V2C 6X2 | molycop.***** | 2011 | $162,869,600 | 400 | N/A | N/A | N/A |
| 61 | Supreme Steel LP | Canada | Acheson | 28169 96 Ave | Alberta | T7X 6J7 | supremegroup.***** | 1972 | $158,100,150 | 650 | N/A | N/A | N/A |
| 62 | Solutions De Mobilite Spectra Premium Canada Ltee | Canada | Boucherville | 1421 Rue Ampère | Québec | J4B 5Z5 | spectrapremium.***** | 2022 | $158,100,150 | 650 | N/A | N/A | 13656632 |
| 63 | Tree Island Steel LTD | Canada | Richmond | 3933 Boundary Rd | British Columbia | V6V 1T8 | treeisland.***** | 1964 | $157,614,996 | 20 | N/A | N/A | 8265976 |
| 64 | Altasteel INC | Canada | Edmonton | 9401 34 St Nw | Alberta | T6B 2X6 | altasteel.***** | 2017 | $156,761,990 | 385 | N/A | N/A | N/A |
| 65 | Mancor Canada INC | Canada | Oakville | 2485 Speers Rd | Ontario | L6L 2X9 | mancor.***** | 1994 | $156,640,764 | 644 | N/A | N/A | N/A |
| 66 | Meridian Lightweight Technologies Holdings INC. | Canada | Strathroy | 25 Mcnab St | Ontario | N7G 4H6 | meridian-mag.***** | 2014 | $154,726,120 | 380 | N/A | N/A | N/A |
| 67 | Bailey-Hunt LIMITED | Canada | Concord | 1 Caldari Rd | Ontario | L4K 3Z9 | bmp-group.***** | 1950 | $154,726,120 | 380 | N/A | N/A | N/A |
| 68 | Esco LIMITED | Canada | Port Coquitlam | 1855 Kingsway Ave | British Columbia | V3C 1T1 | escocorp.***** | 1871 | $154,726,120 | 380 | N/A | N/A | N/A |
| 69 | Jefferson Elora CORPORATION | Canada | Elora | 60 1st Line | Ontario | N0B 1S0 | ca.***** | 1996 | $154,694,916 | 636 | N/A | N/A | N/A |
| 70 | Les Forges De Sorel Cie | Canada | Saint-joseph-de-sorel | 100 Rue Mccarthy | Québec | J3R 3M8 | sorelforge.***** | 1939 | $146,582,640 | 360 | N/A | N/A | N/A |
| 71 | The Hillman Group Canada Ulc | Canada | Toronto | 900 Passmore Ave | Ontario | M1X 0C6 | hpaulin.***** | 1928 | $145,938,600 | 600 | N/A | N/A | N/A |
| 72 | Kirchhoff Automotive Canada INC | Canada | Aurora | 200 Vandorf Siderd | Ontario | L4G 0A2 | kirchhoff-automotive.***** | 1979 | $145,938,600 | 600 | N/A | N/A | N/A |
| 73 | C.P. Loewen Enterprises LTD | Canada | Steinbach | 77 Hwy 52 W | Manitoba | R5G 1B2 | loewen.***** | 1905 | $145,938,600 | 600 | N/A | N/A | N/A |
| 74 | Ainsworth Engineered Canada LIMITED Partnership | Canada | Vancouver | 1055 Dunsmuir St Suite 3194 | British Columbia | V7X 1L3 | ainsworth.***** | 1955 | $145,938,600 | 600 | N/A | N/A | N/A |
| 75 | Supermetal Structures INC | Canada | Lévis | 1955 5e Rue | Québec | G6W 5M6 | supermetal.***** | 2021 | $142,510,900 | 350 | N/A | N/A | N/A |
| 76 | Robert Mitchell INC | Canada | Montréal | 350 Boul Decarie | Québec | H4L 3K5 | robertmitchell.***** | 1924 | $137,425,515 | 565 | N/A | N/A | N/A |
| 77 | Marshall-Barwick Holdings INC | Canada | Toronto | 201-23 Lesmill Rd | Ontario | M3B 3P6 | N/A | 2003 | $137,425,515 | 565 | N/A | N/A | N/A |
| 78 | Aluminerie Alouette INC. | Canada | Sept-îles | 400 Ch de la Pointe-noire | Québec | G4R 5M9 | alouette.***** | 1988 | $136,041,000 | 750 | N/A | N/A | N/A |
| 79 | Meridian Lightweight Technologies INC | Canada | Strathroy | 25 Mcnab St | Ontario | N7G 4H6 | meridian-mag.***** | 1981 | $134,367,420 | 330 | N/A | N/A | N/A |
| 80 | Tremcar INC | Canada | Saint-jean-sur-richelieu | 790 Av Montrichard | Québec | J2X 5G4 | tremcar.***** | 1962 | $133,777,050 | 550 | N/A | N/A | N/A |
| 81 | Kubota Materials Canada CORPORATION | Canada | Orillia | 25 Commerce Rd | Ontario | L3V 6L6 | kubotamaterials.***** | 1935 | $132,331,550 | 325 | N/A | N/A | N/A |
| 82 | Smi Holdings LIMITED | Canada | Calgary | 1222 58 Ave Se | Alberta | T2H 2E9 | N/A | 1995 | $127,696,275 | 525 | N/A | N/A | N/A |
| 83 | Cinro Resources INC | Canada | Toronto | 100 King St W | Ontario | M5X 2A1 | cinroresources.***** | 2010 | $126,971,600 | 700 | N/A | N/A | N/A |
| 84 | Bailey Metal Products LIMITED | Canada | Concord | 1 Caldari Rd | Ontario | L4K 3Z9 | bmp-group.***** | 1950 | $122,966,548 | 302 | N/A | N/A | N/A |
| 85 | Dfi CORPORATION | Canada | Edmonton | 2404 51 Ave Nw | Alberta | T6P 0E4 | dfi.***** | 1969 | $122,966,548 | 302 | N/A | N/A | N/A |
| 86 | Magindustries CORP | Canada | Toronto | 409-235 Yorkland Blvd | Ontario | M2J 4Y8 | pacificrimgroups.***** | 2011 | $122,152,200 | 300 | N/A | N/A | N/A |
| 87 | Almag Aluminum INC | Canada | Brampton | 22 Finley Rd | Ontario | L6T 1A9 | almag.***** | 1953 | $122,152,200 | 300 | N/A | N/A | N/A |
| 88 | Noranco INC | Canada | Woodbridge | 710 Rowntree Dairy Rd | Ontario | L4L 5T7 | noranco.***** | 1964 | $121,615,500 | 500 | N/A | N/A | N/A |
| 89 | Aleris Aluminium Canada S.E.C. | Canada | Trois-rivières | 290 Rue Saint-laurent | Québec | G8T 6G7 | aleris.***** | 1997 | $121,615,500 | 500 | N/A | N/A | N/A |
| 90 | Warren Industries LTD | Canada | Concord | 129 Fernstaff Crt | Ontario | L4K 3M1 | wrnind.***** | 1989 | $121,615,500 | 500 | N/A | N/A | N/A |
| 91 | Armatures Bois-Francs INC | Canada | Victoriaville | 249 Boul de la Bonaventure | Québec | G6T 1V5 | abf-inc.***** | 1976 | $121,615,500 | 500 | N/A | N/A | N/A |
| 92 | Marshall-Barwick INC | Canada | Toronto | 100 Sheppard Ave E Unit 930 | Ontario | M2N 6N5 | marshallbarwick.***** | 1913 | $121,615,500 | 500 | N/A | N/A | N/A |
| 93 | Imt Standen's LIMITED Partnership | Canada | Calgary | 1222 58 Ave Se | Alberta | T2H 2E9 | service.***** | 2013 | $121,615,500 | 500 | N/A | N/A | N/A |
| 94 | Vari-Form INC | Canada | Strathroy | 233 Lothian Ave | Ontario | N7G 4J1 | vari-form.***** | 2019 | $121,615,500 | 500 | N/A | N/A | N/A |
| 95 | Waiward Industrial LIMITED Partnership | Canada | Edmonton | 10030 34 St Nw | Alberta | T6B 2Y5 | waiward.***** | 1972 | $121,615,500 | 500 | N/A | N/A | N/A |
| 96 | Canimex INC | Canada | Drummondville | 285 Rue Saint-georges | Québec | J2C 4H3 | canimex.***** | 1969 | $121,615,500 | 500 | N/A | N/A | N/A |
| 97 | Omega Ii INC. | Canada | Laval | 1735 Boul Saint-elzear O | Québec | H7L 3N6 | metaltech-omega.***** | 1999 | $116,750,880 | 480 | N/A | N/A | 3614875 |
| 98 | Sei Capital INC | Canada | Brampton | 85 Parkshore Dr | Ontario | L6T 5M1 | canart.***** | 1988 | $114,008,720 | 280 | N/A | N/A | N/A |
| 99 | General Cable Company LTD | Canada | Brampton | 156 Parkshore Dr | Ontario | L6T 5M1 | generalcable.***** | 2013 | $111,972,850 | 275 | N/A | N/A | N/A |
| 100 | Fleetwood Metal Industries INC | Canada | Windsor | 1965 Ambassador Dr | Ontario | N9C 3R5 | fleetwoodmetal.***** | 1938 | $109,697,181 | 451 | N/A | N/A | N/A |