| Company | 2021_BoothAssign |
| 3M | 111 |
| ABB Midwest Electrical Products | 227 |
| Acuity Brands | 600, 602 |
| Adalet | 534 |
| Aero Sales | 222, 224, 226, 228, 230 |
| Agora Systems Inc. | 335 |
| AIDA | 131 |
| Akron Electric, Inc. | 318 |
| Allied Moulded Products, Inc. | 510 |
| American Conduit by SAPA | 326 |
| American Lighting Inc. | 130 |
| American Polywater | 106 |
| Anamet Electrical Products Inc. | 409 |
| APC | 101 |
| Appleton Emerson Automation Solutions/ASCO Valve, Inc. | 413, 415 |
| Arlington Industries, Inc. | 419, 518 |
| ASCO Power Technologies | 105 |
| ASD Lighting Corp. | 613 |
| Atkore International (Allied Tube & Conduit/AFC) | 500, 502, 504, 506 |
| Axis Lighting | 605 |
| AZZ Lighting Systems/ RigALite | 535 |
| Baco Controls | 533 |
| Barron Lighting | 702 |
| BestLight LED Corp. | 528 |
| Bolt Star/Construction Innovations | 113 |
| Bridgeport Fittings, Inc. | 327 |
| Bright Focus Sales | 601, 603, 605, 702 |
| Buckeye Power Sales Co. | 333 |
| Bulldog Mfg. | 116 |
| Cembre | 401, 403 |
| Chalfant Manufacturing | 123 |
| Champion Fiberglass | 222 |
| Cooper Lighting Solutions | 622, 624 |
| Cree Lighting | 519 |
| Crestron | 603 |
| Dialight | 334 |
| Donwil Company | 316 |
| E Technologies, Inc. | 408, 410 |
| Eaton | 303, 305, 307, 402, 404, 406 |
| Eaton (B-Line) | 303, 305, 307, 402, 404, 406 |
| Eaton (Bussmann) | 303, 305, 307, 402, 404, 406 |
| Eaton (Crouse-Hinds) | 303, 305, 307, 402, 404, 406 |
| Eaton Cooper Power Systems Division | 303, 305, 307, 402, 404, 406 |
| Eaton Surge Suppression | 303, 305, 307, 402, 404, 406 |
| Eaton UPS Systems | 303, 305, 307, 402, 404, 406 |
| E-Box Enclosures | 223 |
| ECM | 129 |
| EDI Power Services, Inc. | 633, 635 |
| EIKO | 304 |
| Electri-Flex, Inc. | 314 |
| Elemental LED DIODE | 515 |
| e-Luminaire | 612 |
| Emergi-Lite ABB | 606 |
| Encore Wire | 302 |
| Engineered Products Co. / EPCO | 224 |
| EnvisionLED | 312 |
| Ericson Mfg. | 426 |
| Excel Dryer | 227 |
| Federal Pacific | 229 |
| Federal Signal | 407 |
| Fields Electric Sales | 113, 115, 117, 119, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219 |
| Finelite | 619 |
| Flex-Strut Inc. | 229 |
| Fluke | 217 |
| Fulham | 527 |
| G&G Industrial Lighting | 328 |
| GE Current | 607 |
| Gen-Mark | 101 |
| GES Goldschmidt Inc. | 529, 531, 533 |
| Glasmasters Underground Enclosures | 225 |
| Gobeille-Robinson | 223, 225, 227, 229 |
| Great Lakes Light Works | 435, 629 |
| Greaves Corp., Div. of EPG Inc. | 108 |
| Greenlee /RIDGID | 530 |
| G-Strut | 330, 332 |
| H.E. Williams | 608 |
| Halco Lighting Technologies | 104 |
| Hammond Manufacturing Co. | 529 |
| Hammond Power Solutions | 205 |
| Hanwha QCELLS | 417 |
| Harger Lightning & Grounding | 210 |
| Hawkins Sales of Ohio | 419, 500, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 523, 525, 527 |
| HellermanTyton | 209 |
| Hubbell - Harsh & Hazardous (Killark) | 112 |
| Hubbell Burndy Products | 110 |
| Hubbell Commercial Construction (Raco, Taymac, Bell, Wiegmann, Acme) | 512 |
| Hubbell Lighting | 618 |
| Hubbell Wiring Devices - Kellems | 110 |
| Icotek | 409 |
| IDEAL Industries, Inc. | 317, 319, 416, 418 |
| Idem Safety Switches | 531 |
| IEC - Northern Ohio | 429 |
| IESNA Cleveland Chapter | 625 |
| Illumus (ILP|Green Creative) | 617 |
| ILSCO | 430 |
| Impact Agency | 104, 106, 108 |
| Intermatic Inc. | 306 |
| Ipex USA LLC | 226 |
| iTool Co. | 300 |
| Jack Duffy & Associates, Inc. | 600, 602, 604 |
| Kenall Lighting | 615 |
| Keystone Technologies | 213, 215 |
| Kidde | 212 |
| Klein Tools | 135 |
| Kraloy Fittings | 225 |
| L.H. Dottie Company | 203 |
| LEDVance /Sylvania | 322 |
| Legrand | 202, 204, 206 |
| Lenox Dewalt | 126 |
| Leotek Electronics USA LLC | 629 |
| Lester Sales Co. | 322, 324, 326, 327, 328, 329, 330. 331, 332, 334 |
| Leviton | 503, 505, 507 |
| Light Efficient Design | 308 |
| Lighting and Controls | 622, 624, 626, 628, 630, 632, 634 |
| Lighting Dynamics, Inc. | 612, 613, 614, 615, 616, 617, 618, 619, 623 |
| Lindsay Precast | 114 |
| Lite the Nite | 525 |
| Littelfuse | 207 |
| LSI Industries Inc. | 611 |
| Lumen Warm | 523 |
| Luminii | 630 |
| Lutron | 626 |
| Mack Industries | 431 |
| MagDaddy Dakota Systems USA | 208 |
| Marley Engineered Products/Berko Qmark | 228 |
| MaxLite | 517 |
| McAuliffe Sales | 401, 403, 405, 407, 409, 44, 413, 415 |
| Meltric Corporation | 531 |
| Mersen | 430 |
| Midwestern Electrical Sales | 129, 131, 133 |
| Milbank Mfg. | 211 |
| Milwaukee Electric Tool | 100 |
| Minerallac Company | 311 |
| Morris Products | 532 |
| MultiLink | 432 |
| Myriad Energy Solutions | 606, 607, 608, 609, 610, 611 |
| Nelson | 411 |
| Netzero-USA | 631 |
| Newstar Lighting | 609 |
| Nicor Lighting | 131 |
| NSI Industries, Inc. | 514 |
| Nuvo |Satco | 509 |
| nVent CADDY | 508 |
| nVent Erico | 508 |
| nVent Hoffman | 405 |
| OhioCAT | 118 |
| Oldcastle Infrastructure | 127 |
| Orbit Industries, Inc. | 133 |
| Panasonic | 230 |
| Panduit | 324 |
| Penn Aluminum Conduit | 223 |
| Penn Union Corp. | 313 |
| Phoenix Support Systems | 232 |
| Pinnacle Architectural Lighting | 610 |
| Powering Cleveland | 102 |
| PRM Associates | 532, 534 |
| Prysmian Group | 125 |
| RAB Lighting | 122 |
| RC Childs Co. | 123, 125, 127 |
| RDA Lighting | 331 |
| Riffle & Associates | 300, 302, 304, 306, 308, 310, 311, 312, 313, 314, 315 |
| River Electrical Sales | 534, 535 |
| Robert S. Howley Co | 309 |
| RP Lighting & Fans | 616 |
| Satco | Nuvo | 509 |
| Saylite | 513 |
| Schneider Electric | 103 |
| Sensorworx | 128 |
| Service Wire Co. | 516 |
| Siemens | 423, 425, 427, 522, 524, 526 |
| Signify NA | 601 |
| Skyworks LLC | 134 |
| SLG Lighting | 201 |
| Socomec | Boltswitch | 428 |
| SolarEdge | 417 |
| Southwire | 115, 117, 119, 214, 216, 218 |
| SP Products | 124 |
| Stelpro | 310 |
| StressCrete Group | 511 |
| TCP Lighting | 435 |
| Tech Lighting | 628 |
| Topaz | Southwire | 115 |
| TPI Corporation | 132 |
| Turner Concrete Products | 234 |
| United Fiberglass | 329 |
| United Rentals | 231, 233, 235 |
| Universal Douglas | 315 |
| USAI Lighting | 627 |
| Venture Lighting International | 623 |
| Voltec Power & Lighting | 108 |
| Wattstopper | 614 |
| Windsor Wire | 434 |
| YellowLite, Inc. | 417 |
