| Atlantic Electric, LLC | Lee Richardson | 843-460-1204 | LRichardson@AtlanticElectric.com |
| Bear Mechanical Servies, LLC | Edward Gibbs | (803) 252-9226 | egibbs@bearmechanical.com |
| Blanchard Machinery / Blanchard Power Systems | Sara Cox | 843-871-2001 | sbcox@blanchardmachinery.com |
| Border States Electric | Richard Dawkins | 843) 879-0232 | Rdawkins@borderstates.com |
| C R Hipp Construction, Inc | Pete Bailey | 843-744-4477 | pete.bailey@crhippconstruction.com |
| Capital Electric | Brad DeAntonio | 843-745-6811 | brad.deantonio@capitalelectricsupply.com |
| Chapman Company | Joel Davis, Sr. | (704) 405-3812 | jdavis@chapmancompany.com |
| City Electric Supply | Robert Haney | 843-266-2061 | rhaney@ces-us.net |
| Cullum Mechanical Construction, Inc | Chris Cullum | 843-554-6645 | cullumc@culluminc.com |
| Eastern Industrial Supplies, Inc - Hanahan | Chris Wallace | 843-735-5810 | chris.wallace@easternfirst.com |
| Ferguson Enterprises, Inc - Plumbing Div - N Charl | Michael Hunter | 843-747-6301 | michael.hunter@ferguson.com |
| Ferira Ainsworth & Company, LLC | Joseph Ferira, Jr. | 843-722-7676 | joe.ferira@contractorcpa.net |
| Feyen Zylstra | Mark Dornsife | (843) 408-5932 | markd@fzcorp.com |
| Gatch Electrical Contractors, Inc. | Jimmy Gatch | 843-573-0700 | jgatch@gatchelectrical.com |
| Graybar Electric Company, Inc. | Cole Doolittle | 843-207-2700 | cole.doolittle@graybar.com |
| HR Allen, Inc. | Rod Allen | 843-747-4100 | rod.allen@hrallen.com |
| Lubrizol | W. Sean Barr | 843-408-2519 | sean.barr@lubrizol.com |
| Mayer Electric Supply - Charleston | John Leland | 843-747-8714 | jleland@mayerelectric.com |
| Mechanical Contractors Association | Mona Flowers | (803) 772-7834 | MFlowers@MCASC.com |
| Mechanical Design, Inc. | Juston Varco | 803-731-9834 | justin@mdi9834.com |
| Metro Electric Company, Inc | Mike Gunther | 843-554-0621 | mgunther@metroelectriccoinc.com |
| Morelli Heating & Air, Inc | Anthony Morelli | 843-554-8600 | tonymo@morelli-heat-ac.com |
| Murray Supply Company-Charleston | Dan Bussell | 843 606 5457 Ext 501 | debussell@morsco.com |
| National Power Corporation | Ricky Espinosa | 843-303-0948 | Ricky.espinosa@NatPow.com |
| NextGen Technologies, Inc. | Rusty Webb | 843-871-8531 | rusty@nextgenusa.com |
| Old Dominion Insulation | Matt Sasiene | 843-729-8465 | msasiene@odins.com |
| Palmetto Mechanical Solutions (Charleston) | Chris Villedas | (843) 214-2720 | chris@palmettoms.com |
| Premier Electrical Staffing, LLC | Varity Poston | 843-767-3838 | varity.poston@pes123.com |
| Sunbelt Marketing, Inc. | Jamie Roberts | (864) 940-5000 | jamier@sminc.net |
| Sunbelt Rentals, Inc. | Andy Pickett | 843 296-3787 | Andrew.pickett@sunbeltrentals.com |
| The Sack Company | Paul Roesel | 912-871-8771 | paulr@hasack.com |
| Trane U.S., Inc. - West Columbia | Brad McCoy | (803) 936-4703 | brad.mccoy@trane.com |
| Transworld, Inc | Jim Ritter | 843-577-3491 | jim@transworldincelectric.com |
| Triad Mechanical Contractors, Inc | Ryan Laquiere | (843) 556-5636 | ryan@triadmc.com |
| United Rentals, Inc. | Jon Mason | (843) 480-3958 | jamsmith@ur.com |
| Victaulic | Colin Shropshire | (803) 587-5134 | Colin.Shropshire@victaulic.com |