We Analyzed our complete dataset of general contractors that have more than 150 employees, The employee headcount ranges from 151 to 32,874.
- The earliest company was founded in 1778, and the most recent in 2016.
- The median year of founding is 1965.
- While older companies are often larger, some companies founded in the 1990s and 2000s also have substantial employee counts, indicating that rapid growth and scalability are achievable in the modern era.
Top 10 States/Provinces by Company Count:
– The states/provinces with the highest company count are:
– Texas (TX): 24 companies
– California (CA): 21 companies
– Georgia (GA): 19 companies
– Ontario (ON): 17 companies
– England: 17 companies
– Illinois (IL): 14 companies
– Virginia (VA): 13 companies
– Florida (FL): 13 companies
– Missouri (MO): 13 companies
– Colorado (CO): 12 companies
Here are the top 10 locations with the highest total number of employees, according to the dataset:
- Texas (TX): 79,478 employees.
- England: 79,161 employees.
- Virginia (VA): 35,535 employees.
- Colorado (CO): 21,569 employees.
- Ontario (ON): 18,462 employees.
- New York (NY): 16,388 employees.
- Missouri (MO): 15,941 employees.
- Georgia (GA): 14,140 employees.
- London: 13,354 employees.
- Tennessee (TN): 12,718 employees.
| CONSTRUCTION COMPANY NAME |  NUMBER OF EMPLOYEES | YEAR FOUNDED | HQ OFFICE LOCATION |
|---|---|---|---|
| Fluor Corporation | 32,874 | 1912 | TX |
| McDermott International, Inc. | 25,484 | 1923 | TX |
| Capita plc | 21,447 | 1984 | England |
| SKANSKA USA INC | 21,383 | 1887 | VA |
| BECHTEL LTD | 18,364 | 1898 | England |
| Grontmij UK | 16,806 | 1913 | England |
| VINCI CONSTRUCTION | 13,582 | 2000 | – |
| Lend Lease | 12,850 | 1958 | NY |
| LEND LEASE CONSTRUCTION (SCOTLAND) LTD | 12,770 | 1958 | London |
| Turner Construction Company | 12,398 | 1902 | TN |
| Harvey | Harvey-Cleary | 11,115 | 1957 | TX |
| HDR Inc. | 10,381 | 1917 | NE |
| CH2M HILL | 9,966 | 1956 | CO |
| Black & Veatch | 9,138 | 1915 | KS |
| BURNS & MCDONNELL | 8,498 | 1898 | MO |
| Kier Group plc | 8,269 | 1992 | ENG |
| LAING O’ROURKE WALES & WEST LTD | 7,544 | 1978 | Kent |
| PCL Construction | 7,317 | 1906 | Alberta |
| Mace Ltd | 6,651 | 1990 | England |
| MORGAN SINDALL GROUP | 6,544 | 1977 | Sheffield |
| THE ROSS GROUP | 6,241 | 1979 | OK |
| CDM Smith | 5,893 | 1947 | CO |
| HOURIGAN CONSTRUCTION | 5,066 | 1993 | VA |
| DPR Construction | 4,501 | 1990 | AZ |
| The Whiting-Turner Contracting Co | 3,894 | 1909 | MD |
| ISG plc | 3,602 | 1989 | England |
| EllisDon Construction Services Inc | 3,366 | 1951 | ON |
| Gilbane Building Company | 3,340 | 1870 | RI |
| Matheson Constructors | 3,320 | 2008 | ON |
| Mortenson Construction | 3,309 | 1954 | MN |
| McCarthy Building Companies, Inc. | 3,229 | 1864 | MO |
| WALSH GROUP LTD | 3,125 | 1898 | England |
| Walsh Archer Western (Walsh Group) | 3,092 | 1898 | IL |
| Clark Construction Group | 2,975 | 1906 | MD |
| Balfour Beatty Construction US | 2,954 | 1909 | GA |
| MEB General Contractors | 2,842 | 1982 | VA |
| Hensel Phelps Construction | 2,794 | 1937 | VA |
| Austin Industries | 2,704 | 1918 | TX |
| GALLIFORD TRY PARTNERSHIPS LTD | 2,586 | 1908 | – |
| Wates Group Limited | 2,504 | 1897 | England |
| Swinerton Builders | 2,500 | 1888 | CO |
| BAM Nuttall | 2,392 | 1865 | Camberley |
| WILLMOTT DIXON Construction LTD | 2,389 | 1852 | – |
| Melloul-Blamey Construction Inc | 2,309 | 1982 | ON |
| J Murphy & Sons Limited | 2,254 | 1951 | England |
| BLACK & McDONALD LIMITED | 2,209 | 1921 | ON |
| Brasfield & Gorrie | 2,083 | 1964 | GA |
| BL Harbert International | 2,028 | 2000 | AL |
| The Bozzuto Group | 2,022 | 1988 | MD |
| Structure Tone, Inc. | 1,950 | 1971 | NY |
| SIR ROBERT MCALPINE LTD | 1,924 | 1869 | Hertfordshire |
| JE Dunn Construction | 1,924 | 1924 | GA |
| Graham Construction | 1,920 | 1926 | AB |
| Suffolk Construction Company, Inc. | 1,756 | 1982 | MA |
| Haskell | 1,730 | 1965 | FL |
| Power Design | 1,596 | 1989 | FL |
| RYAN COMPANIES US INC | 1,581 | 1938 | MN |
| Pomerleau Inc | 1,571 | 1966 | ON |
| GRAHAM-BAM HEALTHCARE PARTNERSHIP | 1,390 | 1778 | Ireland |
| Barton Malow Company | 1,368 | 1924 | MI |
| Camden | 1,354 | 1982 | GA |
| Sundt Construction, Inc. | 1,290 | 1890 | AZ |
| Bird Construction Company Limited | 1,257 | 1920 | ON |
| Holder Construction Company | 1,245 | 1960 | GA |
| Silver Birch Construction | 1,179 | 1998 | ON |
| Hitt Contracting | 1,167 | 1937 | VA |
| CONSIGLI CONSTRUCTION | 1,115 | 1905 | MA |
| KELTBRAY GROUP | 1,095 | 1976 | England |
| Yates Construction | 1,082 | 1963 | MS |
| SSOE | 1,066 | 1948 | OH |
| Layton Construction Co., Inc. | 1,050 | 1953 | AZ |
| John Sisk & Son Ltd | 1,032 | 1859 | Ireland |
| Clayco | 1,027 | 1984 | MO |
| Shawmut Design and Construction | 1,016 | 1982 | MA |
| The Macallan Group | 1,000 | 2002 | GA |
| Lease Crutcher Lewis | 1,000 | 1886 | OR |
| Gray Construction | 985 | 1960 | KY |
| Messer Construction Co | 965 | 1932 | OH |
| ROBERTSON GROUP | 940 | 1966 | Elgin |
| The Beck Group | 889 | 1912 | TX |
| Dean Snyder Construction | 872 | 1958 | IA |
| Cianbro | 870 | 1949 | ME |
| Moss Construction Management (Moss & Associates) | 865 | 2004 | FL |
| Stuart Olson Construction Ltd | 859 | 1911 | AB |
| Ingenium Group Inc. | 847 | 1938 | ON |
| FM Conway Ltd | 839 | 1961 | Kent |
| ISEC, Inc | 820 | 1967 | CO |
| AECOM Hunt | 813 | 1944 | IN |
| Robins & Morton | 810 | 1946 | AL |
| CORE Construction | 772 | 1937 | FL |
| JN Bentley Ltd | 771 | 1972 | North Yorkshire |
| Osborne | 768 | 1966 | Surrey |
| Carey Group PLC | 753 | 1969 | England |
| The Weitz Company | 749 | 1855 | IA |
| Pepper Construction | 746 | 1927 | IL |
| MCLAREN CONSTRUCTION LTD | 741 | 2001 | Essex |
| BOLDT | 740 | 1889 | WI |
| Kitchell Corporation | 733 | 1950 | AZ |
| Kokosing Construction Co. Inc. | 727 | 1959 | OH |
| DAVACO, LP | 723 | 1990 | TX |
| CADDELL CONSTRUCTION COMPANY INC | 697 | 1983 | AL |
| BUCKINGHAM GROUP CONTRACTING LTD | 682 | 1955 | Bucks |
| Manhattan Construction Company | 682 | 1896 | OK |
| Wood Partners | 675 | 1998 | GA |
| Alberici Constructors, Ltd | 670 | 1918 | MO |
| Hoffman Construction Company | 667 | 1922 | OR |
| Vaughn Construction | 665 | 1988 | TX |
| Bowmer & Kirkland | 663 | 1923 | Derbyshire |
| FLINTCO | 646 | 1908 | OK |
| VOLKERFITZPATRICK LTD | 634 | 1921 | Hertfordshire |
| Hydrock Contracting Ltd | 628 | 1995 | Bristol |
| Okland Construction | 620 | 1918 | UT |
| W.E. O’Neil Construction | 599 | 1925 | CO |
| Power Construction Company, LLC | 598 | 1926 | IL |
| VINCI CONSTRUCTION UK LIMITED | 595 | 1918 | Hertfordshire |
| MOELVEN UK LTD | 595 | 1899 | England |
| Columbia Construction Company | 591 | 1925 | MA |
| BIG-D Construction Corp | 588 | 1967 | UT |
| Crossland | 585 | 1978 | AR |
| Waterman Group | 584 | 1952 | London |
| Pick Everard | 582 | 1866 | Birmingham |
| Adolfson & Peterson Construction | 566 | 1946 | NC |
| KRAUS-ANDERSON CONSTRUCTION | 561 | 1897 | MN |
| MCLAUGHLIN & HARVEY LTD | 558 | 1853 | Newtownabbey |
| Nabholz Corporation | 553 | 1949 | MO |
| Hanover Company | 550 | 1982 | TX |
| FARRANS CONSTRUCTION | 548 | 1941 | England |
| Wharton-Smith, Inc | 548 | 1984 | FL |
| Clark Builders | 541 | 1974 | AB |
| E.S. Fox Limited | 537 | 1934 | ON |
| Walsh Construction Co. | 517 | 1961 | WA |
| Morrison Construction | 516 | 1948 | Aberdeenshire |
| Rudolph & Sletten, Inc. | 512 | 1960 | CA |
| Hathaway Dinwiddie Construction Company | 506 | 1911 | CA |
| Plaza Construction | 505 | 1986 | NY |
| Choate Construction Company | 500 | 1989 | GA |
| Rand Construction Corporation | 500 | 1989 | VA |
| MW Builders | 500 | 1971 | TX |
| Roebbelen Contracting, Inc. | 500 | 1959 | CA |
| Rogers-O’brien Construction Company, Ltd. | 500 | 1969 | TX |
| BNBuilders, Inc | 497 | 2000 | CA |
| Miron Construction Co., Inc. | 487 | 1918 | WI |
| Kinsley Construction, Inc. | 479 | 1963 | PA |
| SAMET CORP | 458 | 1961 | NC |
| Andersen Construction Company | 449 | 1950 | OR |
| Hammerson | 447 | 1942 | England |
| Sellen Construction Co., Inc. | 442 | 1944 | WA |
| Tatitlek Construction Services, Inc | 438 | 1971 | AK |
| James G. Davis Construction (DAVIS) | 438 | 1966 | MD |
| The Opus Group | 437 | 2010 | MN |
| FH Paschen | 435 | 1975 | IL |
| McGough Construction Co., Inc. | 433 | 1956 | MN |
| XL Construction Corporation | 432 | 1992 | CA |
| HUNTER ROBERTS CONSTRUCTION GROUP | 430 | 2005 | PA |
| Magill Construction Company | 430 | 1953 | WI |
| Dyer & Butler Ltd | 426 | 1979 | Hampshire |
| Batson-Cook Development Company | 422 | 1915 | GA |
| Danis Group of Companies | 418 | 1916 | NC |
| Spaw Glass | 418 | 1953 | TX |
| F.A. Wilhelm Construction Co., Inc | 417 | 1923 | IN |
| MWH Global | 415 | 1820 | Broomfield |
| O&G Industries, Inc | 415 | 1923 | CT |
| G.& J.Seddon Ltd | 411 | 1897 | Bolton |
| Fortis Construction | 404 | 2003 | OR |
| The Christman Company | 399 | 1894 | MI |
| Graycor Inc. | 395 | 1921 | IL |
| McCownGordon Construction | 394 | 1999 | MO |
| ESH Group | 393 | 1999 | Durham |
| J.H. Findorff & Son Inc. | 389 | 1890 | WI |
| SAUNDERS CONSTRUCTION | 388 | 1972 | UT |
| Construction Broccolini Inc | 387 | 1949 | QC |
| SHAW CONSTRUCTION | 383 | 1962 | CO |
| Stiles Corporation | 381 | 1951 | FL |
| JACOBSEN Construction Company | 376 | 1922 | UT |
| Bartlett Cocke General Contractors | 368 | 1959 | TX |
| Saunders Construction, Inc. | 367 | 1972 | CO |
| MIDAS GROUP LTD | 366 | 1976 | – |
| McAleer & Rushe | 363 | 1967 | England |
| Bernards | 360 | 1974 | CA |
| A/Z CORP | 359 | 1968 | CT |
| CW Driver | 356 | 1919 | CA |
| CBG Building Company | 347 | 1999 | VA |
| Tellepsen Builders, L.P. | 346 | 1909 | TX |
| Watkin Jones Group | 341 | 1791 | Gwynedd |
| R.W. Tomlinson Ltd. | 337 | 1952 | ON |
| Deacon Corp. | 335 | 1981 | CA |
| Joeris General Contractors, Ltd. | 331 | 1967 | TX |
| Barnhill Contracting | 324 | 1949 | NC |
| Emj Corporation | 320 | 1968 | TN |
| MORGANTI GROUP INC | 320 | 1916 | CT |
| Keeley Construction Group | 317 | 1976 | MO |
| Thalhimer | 314 | 1913 | VA |
| Rycon Construction | 310 | 1989 | PA |
| FCI Constructors, Inc. | 305 | 1978 | CO |
| MILLER-VALENTINE GROUP | 304 | 1963 | OH |
| Bond | 301 | 1907 | MA |
| Eric Wright Group | 300 | 1923 | Preston |
| RODGERS BUILDERS INC | 300 | 1963 | NC |
| Gly Construction, Inc. | 300 | 1967 | WA |
| DCK worldwide, LLC | 299 | n/a | PA |
| Engineered Structures Inc | 299 | 1973 | ID |
| Maple Reinders | 298 | 1967 | ON |
| KDC CONSTRUCTION | 297 | 1996 | CA |
| ROCKFORD CONSTRUCTION | 297 | 1987 | MI |
| Woda Cooper Companies | 296 | 1990 | OH |
| Jordan Foster Construction LLC | 296 | 1969 | TX |
| The Lemoine Company Incorporated | 294 | 1975 | LA |
| Shiel Sexton Company, Inc. | 293 | 1962 | NC |
| NORTH MIDLAND BUILDING LTD | 291 | 1946 | Nottinghamshire |
| Finfrock Design LLC | 290 | 1945 | FL |
| Pankow Builders | 289 | 1963 | CA |
| Grunley Construction Co., Inc. | 287 | 1988 | MD |
| Rydon Group Ltd | 282 | 1978 | East Sussex |
| BUILD IT By Design | 275 | 2003 | ON |
| BCCI Construction Company | 275 | 1986 | CA |
| Van Elle Limited | 274 | 1984 | England |
| KAST CONSTRUCTION | 273 | 1998 | FL |
| Catamount Constructors Inc. | 271 | 1997 | GA |
| L Keeley Construction | 270 | 1976 | IL |
| LEVEL 10 CONSTRUCTION | 269 | 2011 | CA |
| ROBERTSON CONSTRUCTION SERVICES, INC | 269 | 1997 | OH |
| CIMS Limited | 268 | 1991 | BC, CA |
| The PENTA Building Group | 268 | 2000 | NV |
| Tolent Construction Ltd | 267 | 1983 | Tyne & Wear |
| Elford, Inc | 267 | 1910 | OH |
| Novo Construction | 267 | 2000 | CA |
| WATES CONSTRUCTION LTD | 266 | 1961 | Surrey |
| WM Jordan | 266 | 1958 | VA |
| American International Contractors Inc. | 265 | 1974 | VA |
| 13 Transelec / Common Inc. (TCI) | 259 | 1978 | QC |
| Clancy & Theys Construction Company | 256 | 1949 | FL |
| MB KAHN CONSTRUCTION | 256 | 1927 | SC |
| MATT Construction Corporation | 254 | 1991 | CA |
| Wohlsen Construction Company | 251 | 1890 | PA |
| Paric Corporation | 249 | 1979 | MO |
| Brinkmann Constructors | 247 | 1984 | MO |
| Ferrandino & Son | 245 | 1993 | NY |
| Cleveland Construction | 245 | 1980 | OH |
| LF Driscoll | 242 | 1929 | PA |
| MAPP CONSTRUCTION LLC | 242 | 1991 | LA |
| Commodore Builders | 242 | 2002 | MA |
| Bulley & Andrews, LLC | 240 | 1891 | IL |
| Leopardo | 240 | 1977 | IL |
| Callahan Construction Managers | 239 | 1990 | MA |
| JT MAGEN & CO INC | 239 | 1992 | NY |
| Horizon Retail Construction | 238 | 1993 | WI |
| Omicron Consulting Group | 236 | 1998 | BC |
| James McHugh Construction Co | 235 | 1897 | IL |
| Haselden Construction, LLC | 233 | 1973 | CO |
| FCL Builders | 232 | 1976 | IL |
| C SPENCER LTD | 231 | 1989 | East Riding of Yorkshire |
| RCC Associates | 231 | 1971 | FL |
| Granger Construction Company | 231 | 1959 | MI |
| Doster Construction Company, Inc. | 231 | 1969 | AL |
| Hill & Wilkinson | 228 | 1968 | TX |
| FWS Construction Ltd | 225 | 1953 | MB |
| R&H CONSTRUCTION | 225 | 1979 | OR |
| Cahill Contractors | 225 | 1911 | CA |
| DURKAN LIMITED | 224 | 1970 | Herts |
| W. L. Butler Construction, Inc. | 224 | 1975 | CA |
| Willmeng Construction | 224 | 1977 | AZ |
| Martin-Harris Construction | 223 | 1976 | NV |
| Kprs Construction Services, Inc. | 221 | 1998 | CA |
| Trade-Mark Industrial Inc. | 218 | 1998 | ON |
| Wight & Company | 217 | 1939 | IL |
| Commercial Contracting Corporation | 216 | 1946 | MI |
| The Briad Group | 213 | 1987 | NY |
| DEANGELIS DIAMOND CONSTRUCTION | 211 | 1996 | FL |
| RHC | 210 | 2006 | ON |
| Evans General Contractors | 209 | 2001 | GA |
| Ralph L. Wadsworth Construction Co | 209 | 1975 | UT |
| NEWGROUND INC. | 208 | 1913 | MO |
| IMC Construction | 207 | 1976 | PA |
| Clark Construction Company | 205 | 1946 | MI |
| PARKWAY CONSTRUCTION & ASSOCIATES INC. | 204 | 1981 | TX |
| SCHIMENTI CONSTRUCTION | 203 | 1994 | NY |
| C. Overaa & Co. | 203 | 1907 | CA |
| Performance Services | 203 | 1998 | IN |
| The Rush Companies | 200 | 1987 | WA |
| McKenzie Construction Corporation | 200 | 1976 | VA |
| ADI Construction, Inc. | 200 | 2005 | VA |
| Torcon | 200 | 1965 | NJ |
| Ridgemont Commercial Construction | 200 | 1976 | TX |
| Alliance Corporation | 200 | 1975 | KY |
| Johnson-Laux | 200 | 2000 | GA |
| Axiom Construction Company LLC | 200 | 1995 | TX |
| WalterFedy | 198 | 1951 | ON |
| China Construction America | 198 | 1985 | NJ |
| Ajax Building Corporation | 197 | 1958 | GA |
| Winter Construction | 196 | 1962 | GA |
| Pioneer Construction | 196 | 1933 | MI |
| SACHSE CONSTRUCTION | 196 | 1991 | MI |
| ACC Construction Company, Inc. | 195 | 1987 | GA |
| BLOOM COMPANIES LLC | 195 | 1998 | WI |
| StreetLights Residential | 194 | 2011 | TX |
| HILL PARTNERSHIPS LIMITED | 194 | 1999 | – |
| Caddick Construction | 194 | 1979 | West Yorkshire |
| Foulger-Pratt | 194 | 1963 | MD |
| Community Housing Partners Corporation | 191 | 1975 | VA |
| Dimeo Construction Company | 190 | 1930 | RI |
| The Korte Company | 190 | 1958 | MO |
| New South Construction Company | 189 | 1990 | GA |
| LEE KENNEDY CO INC | 188 | 1978 | MA |
| Baldwin & Shell Construction | 188 | 1946 | AR |
| Kajima Building & Design Group, Inc. | 187 | 1964 | GA |
| Abbott Construction, Inc | 187 | 1983 | WA |
| Z- Modular | 186 | 2016 | MI |
| ROBINSON CONSTRUCTION | 186 | 1946 | MO |
| Luddon Construction Ltd | 185 | 1975 | Glasgow |
| Kaufman Lynn Construction | 185 | 1989 | FL |
| EW HOWELL CO | 183 | 1891 | NY |
| VANNOY CONSTRUCTION | 183 | 1952 | NC |
| CDI Contractors, LLC. | 183 | 1987 | AR |
| Lindsay Construction Services | 182 | 1959 | NS |
| Milender White Construction Company | 182 | 1997 | CO |
| MYCON General Contractors, Inc | 181 | 1987 | TX |
| CLOVEMEAD LTD | 181 | 1991 | Runcorn |
| Menkes Developments Ltd. | 180 | 1954 | ON |
| Butler & Young Group Ltd. | 180 | 1996 | – |
| Skender Construction, LLC | 180 | 1955 | IL |
| Lee Lewis Construction, Inc. | 179 | 1976 | TX |
| R&O Construction Company | 179 | 1980 | NV |
| The Oltmans Construction Co | 179 | 1932 | CA |
| CANA Construction Co. Ltd | 178 | 1942 | AB |
| South West Highways | 178 | 1995 | Exeter |
| Lydig Construction | 178 | 1956 | WA |
| John W. Abbott Construction | 177 | 1983 | NC |
| ITC CONSTRUCTION GROUP | 173 | 1983 | BC |
| Coffey Group | 173 | 1974 | England |
| ARCO NATIONAL CONSTRUCTION CO INC | 173 | 1992 | MO |
| The Garrett Companies | 172 | 2014 | Indiana |
| Weis Builders, Inc. | 172 | 1939 | MN |
| Woodward Design+Build | 172 | 1923 | LA |
| SAMPSON CONSTRUCTION | 171 | 1952 | NE |
| Coakley & Williams Construction, Inc. | 171 | 1961 | MD |
| RJM Construction | 171 | 1997 | MN |
| Marous Brothers Construction, inc | 170 | 1980 | OH |
| Reeves and Young | 170 | 1952 | GA |
| GE Johnson Construction | 170 | 1967 | CO |
| Conlan Company | 169 | 1987 | GA |
| Exxel Pacific, Inc. | 168 | 1989 | WA |
| T. B. Penick & Sons, Inc. | 167 | 1905 | CA |
| Jaynes Companies | 167 | 1946 | NM |
| Joseph Jingoli & Sons, Inc. | 167 | 1922 | NJ |
| KEY CONSTRUCTION | 165 | 1978 | OK |
| Embree Construction Group, Inc. | 165 | 1979 | TX |
| Pogue Construction Co., LP | 164 | 1979 | TX |
| WALSH BROTHERS INC | 162 | 1901 | MA |
| Nibbi Brothers General Contractors | 162 | 1950 | CA |
| Reliance Construction of Canada Ltd. | 161 | 1948 | QC |
| HB Projects Ltd | 160 | 1993 | England |
| Menemsha | 160 | 1992 | MA |
| CHARLES PERRY PARTNERS, INC | 160 | 1968 | FL |
| IDEAL CONTRACTING | 160 | 1998 | MI |
| Clark Contracts | 159 | 1978 | – |
| ELLIOTT THOMAS LTD | 158 | 1999 | Tandridge |
| LCG Pence Construction | 158 | 1949 | OR |
| Sajo Inc | 157 | 1977 | QC |
| KBE Building Corporation | 157 | 1959 | CT |
| NORCON INC | 157 | 1999 | IL |
| Scott Builders Inc | 154 | 1971 | AB |
| HIGGINS CONSTRUCTION PLC | 154 | 1961 | Essex |
| Bear Construction | 154 | 1984 | IL |
| PROCON | 154 | 1935 | NH |
| Hagerman Group | 154 | 1908 | IN |
| Dacon Corporation | 153 | 1985 | MA |
| ITC Concepts | 152 | 1992 | Croydon |
| Ferguson Construction Company | 152 | 1920 | OH |
| HBW Construction | 151 | 1969 | MD |
| BOTHWELL- ACCURATE CO.LTD. | 151 | 1927 | ON |
| The Neenan Company | 151 | 1966 | CO |
| M.B. Haynes Corporation | 151 | 1921 | NC |