| Engineers, Prof & Tech Local 2001 | Speea | Tukwila, WA | 20,266 |
| Engineers, Prof & Tech Local 20 | Engineers and Scientists of California | San Francisco, CA | 4,716 |
| Engineers, Prof & Tech Council | New Jersey/pa Area Conncil | Iselin, NJ | 4,500 |
| Engineers, Prof & Tech Council | Northeast | Schenectady, NY | 2,410 |
| Engineers, Prof & Tech Local 1 | Admin Law Judges Judicial Council | Kings Mountain, NC | 954 |
| Engineers, Prof & Tech Local 4 | | Portsmouth, NH | 848 |
| Engineers, Prof & Tech Local 1 | | Portsmouth, VA | 664 |
| Engineers, Prof & Tech Local 1921 | Gao Employees Organization | Washington, DC | 564 |
| Engineers, Prof & Tech Local 121 | | Aiea, HI | 540 |
| Engineers, Prof & Tech Council | Nasa | Cleveland, OH | 500 |
| Engineers, Prof & Tech Council | General Electric Locals | Gardner, MA | 481 |
| Engineers, Prof & Tech Local 12 | | Bremerton, WA | 355 |
| Engineers, Prof & Tech Local 75 | Congressional Research Empl Asn | Washington, DC | 268 |
| Engineers, Prof & Tech Local 3 | | Philadelphia, PA | 251 |
| Engineers, Prof & Tech Local 30 | Ames Federal Employees Union | Moffett Field, CA | 240 |
| Engineers, Prof & Tech Local 241 | | Maple Shade, NJ | 213 |
| Engineers, Prof & Tech Local 147 | | Glenville, NY | 198 |
| Engineers, Prof & Tech Local 32 | | San Diego, CA | 163 |
| Engineers, Prof & Tech Local 98 | New York | New York, NY | 162 |
| Engineers, Prof & Tech Local 2 | Judicial Council 2 | Arlington, VA | 146 |
| Engineers, Prof & Tech Local 27 | | Marshall Space Flight, AL | 141 |
| Engineers, Prof & Tech Local 105 | | Boston, MA | 140 |
| Engineers, Prof & Tech Local 259 | | Memphis Tn, TN | 128 |
| Engineers, Prof & Tech Local 149 | | Lynn, MA | 114 |
| Engineers, Prof & Tech Local 92 | | Cudahy, WI | 103 |
| Engineers, Prof & Tech Local 16 | Napep Council | Coronado, CA | 96 |
| Engineers, Prof & Tech Local 137 | | Fort Wayne, IN | 93 |
| Engineers, Prof & Tech Local 1437 | | Picatinny Arsenal, NJ | 93 |
| Engineers, Prof & Tech Local 8 | | Seattle, WA | 90 |
| Engineers, Prof & Tech Local 29 | Goddard Scientists | Greenbelt, MD | 83 |
| Engineers, Prof & Tech Local 7 | | Columbus, OH | 80 |
| Engineers, Prof & Tech Local 22 | Napep Council | Jacksonville, FL | 75 |
| Engineers, Prof & Tech Local 561 | | Mobile, AL | 68 |
| Engineers, Prof & Tech Local 26 | | San Jose, CA | 61 |
| Engineers, Prof & Tech Local 135 | Local 135 of Ifpte | Washington, DC | 60 |
| Engineers, Prof & Tech Local 138 | | Erie, PA | 59 |
| Engineers, Prof & Tech Local 142 | | Lynn, MA | 49 |
| Engineers, Prof & Tech Local 128 | | Lakewood, CO | 46 |
| Engineers, Prof & Tech Local 18 | | Philadelphia, PA | 41 |
| Engineers, Prof & Tech Local 4 | Chapter 1 | Hanover, NH | 35 |
| Engineers, Prof & Tech Local 94 | | Idaho Falls, ID | 34 |
| Engineers, Prof & Tech Local 66 | | Clinton, NJ | 30 |
| Engineers, Prof & Tech Local 49 | | San Francisco, CA | 28 |
| Engineers, Prof & Tech Local 86 | | San Francisco, CA | 27 |
| Engineers, Prof & Tech Local 852 | | Louisville, KY | 26 |
| Engineers, Prof & Tech Local 777 | | Chicago, IL | 25 |
| Engineers, Prof & Tech Local 9 | | Washington, DC | 15 |
| Engineers, Prof & Tech Local 96 | | Pittsburgh, PA | 15 |
| Engineers, Prof & Tech Local 140 | | Pittsfield, MA | 14 |
| Engineers, Prof & Tech Local 202 | | Epsom, NH | 13 |
| Engineers, Prof & Tech Local 386 | | Tulsa, OK | 13 |
| Engineers, Prof & Tech Local 6 | | Bremerton, WA | 13 |
| Engineers, Prof & Tech Council | Central States | Chicago, IL | 12 |
| Engineers, Prof & Tech Local 89 | | Grand Coulee, WA | 10 |
| Engineers, Prof & Tech Local 57 | | Niagara Falls, NY | 9 |
| Engineers, Prof & Tech Local 15 | | Boston, MA | 6 |
| Engineers, Prof & Tech Local 117 | | Sellersville, PA | 2 |
| Engineers, Prof & Tech Local 101 | | Adams, MA | 2 |
| Engineers, Prof & Tech Local 13 | | Silver Spring, MD | 0 |
| Engineers, Prof & Tech Local 81 | | Chicago, IL | 0 |
| Engineers, Prof & Tech Local 10 | | Portsmouth, VA | 0 |
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