| K.r. Campbell, Inc. | Chesapeake | VA | $26.6M |
| T And T Products LLC | Florence | AL | $10.4M |
| Ibide Corporation | Woodstock | MD | $9.17M |
| Waterbury Plumbing & Heating Supply, Inc. | Waterbury | CT | $5.26M |
| Ferguson Enterprises LLC | Newport News | VA | $4.99M |
| Howland Pump & Supply Co. Inc. | Ogdensburg | NY | $4.31M |
| Atlantic Valve & Supply Inc. | Baltimore | MD | $4M |
| Semitorr Group, LLC | Hillsboro | OR | $3.98M |
| Mpi Fastech, LLC | Virginia Beach | VA | $3.16M |
| The Union Iron Works | Mcalester | OK | $2.63M |
| Ferguson Enterprises, LLC | Hampton | VA | $2.39M |
| Noland CompanyRockledge, FL · UEI S399AAKXM3S3 | Rockledge | FL | $2.23M |
| Delval Equipment Corporation | Audubon | PA | $1.69M |
| Water Heater Distributors, LLC | Pittsburgh | PA | $1.6M |
| Andrew J Zeigler LLC | Lucas | OH | $1.27M |
| Total Water Treatment Systems, Inc. | Madison | WI | $1.11M |
| Integrated Supply Of Columbus, Inc. | Columbus | GA | $1.06M |
| Thermal Tech Inc. | Orlando | FL | $980K |
| F. W. Webb Company | Bedford | MA | $950K |
| HHB Builders & Supply Co. Inc. | Farmington | NM | $895K |
| Atlas Supply Company, Inc. | Saint Louis | MO | $830K |
| Capitol City Supply Co. Inc. | Burke | VA | $795K |
| Yoshida Kanzai Co. Ltd. | Hachinohe | AOMORI | $786K |
| Nakamura Kizai Y.k. | Misawa-shi | AOMORI-KEN | $738K |
| Midwest Mechanical Solutions, LLC | Golden Valley | MN | $558K |
| Bay Associates Group LLC | Lutherville Timonium | MD | $554K |
| Core & Main LP | Saint Louis | MO | $484K |
| Total Maintenance Solutions South Inc. | Taylors | SC | $446K |
| Noland CompanyManassas, VA · UEI RPX3KSEDM543 | Manassas | VA | $419K |
| Winston Water Cooler Ltd. | Dallas | TX | $415K |
| Bernard J. Mulcahy Company, Inc. | Saint Paul | MN | $345K |
| Wren Industries LLC | Pottsville | AR | $345K |
| Lewis-smith Corporation | Dothan | AL | $277K |
| Bluegrass Hydronics & Pump LLC | Lexington | KY | $270K |
| James M Pleasants Co. Inc. | Greensboro | NC | $260K |
| Central Oklahoma Winnelson Co. | Oklahoma City | OK | $238K |
| Florida Hydronics, Incorporated | Jacksonville | FL | $229K |
| Boonyium & Associates Limited | Bangkok | | $228K |
| Koval Building And Plumbing Co. | Morgantown | WV | $212K |
| Cici Boiler Rooms Inc. | Evansville | IN | $210K |
| Plumbers Supply Co. | Louisville | KY | $184K |
| Connor Co. | Peoria | IL | $178K |
| Culligan Ultrapure, Inc. | Owatonna | MN | $173K |
| Tricon Chemical Corporation | District Heights | MD | $163K |
| Winsupply Anniston Al Co. | Anniston | AL | $163K |
| Blackmore And Glunt, Inc. | Maryland Heights | MO | $160K |
| Hydronic Technology, Inc. | New Orleans | LA | $160K |
| Johnson-barrow, Inc. | Seattle | WA | $153K |
| Thos. Somerville Co. | Upper Marlboro | MD | $152K |
| State Supply Co. Inc. | Minneapolis | MN | $147K |
| Tidewater Valve And Fitting, Inc. | Virginia Beach | VA | $147K |
| Intermountain Hydronic Specialties LLC | Salt Lake City | UT | $146K |
| Hydronic & Steam Equipment Co. Inc. | Indianapolis | IN | $144K |
| Servapure Company | Bay City | MI | $144K |
| Dowdy & Associates, Inc. | Birmingham | AL | $144K |
| Maine Energy Systems LLC | Bethel | ME | $143K |
| Reading Foundry & Supply Co. | Reading | PA | $140K |
| Apr Supply Co. | Lebanon | PA | $136K |
| American Backflow Products, Company | Tallahassee | FL | $132K |
| Behrmann Company | Saint Louis | MO | $130K |
| Coburn Supply Company Inc. | Beaumont | TX | $130K |
| H2o Labs, Inc. | Melbourne | FL | $128K |
| Takeuchi Co. Ltd. | Shinagawa-ku | | $127K |
| Belleville Supply Co. | Belleville | IL | $119K |
| Shimada Kinzoku Co. Ltd. | Nagasaki-shi | | $118K |
| Commercial Products Corporation | Tampa | FL | $108K |
| Mountainland Supply LLC | Orem | UT | $105K |
| Mccotter Energy Systems, Inc. | Milwaukee | WI | $105K |
| Florida Industrial Products, Inc. | Tampa | FL | $104K |
| Advanced Thermal Solutions LLC | Elkridge | MD | $102K |
| R.l. Deppmann Company, LLC | Novi | MI | $101K |
| Carolina Plumbing Supply Inc. | Raleigh | NC | $100K |
| Capitol Group, Inc. | Springfield | IL | $96.3K |
| Case Marine Inc. | Arlington | WA | $93.2K |
| Plumbing Distributors, Inc. | Lawrenceville | GA | $92.7K |
| Pach2 Group LLC | Charlotte | NC | $92K |
| Matt Marshall & Co. | Greensboro | NC | $86.9K |
| Schimberg Co. | Cedar Rapids | IA | $86.5K |
| Innovative Contracting LLC | Tempe | AZ | $85.1K |
| Powerhouse Combustion & Mechanical Corp. | Santa Ana | CA | $84.3K |
| J & B Sales Co. | Phoenix | AZ | $83K |
| I.s. Enterprises, Inc. | Washington | DC | $81.1K |
| California Hydronics Corporation | Hayward | CA | $79.4K |
| Advance Water Systems, Inc. | Sunrise | FL | $79K |
| Northeastern Supply Inc. | Rosedale | MD | $78K |
| Pace Supply Corp. | Rohnert Park | CA | $77.9K |
| Dale Boren's Service Supply, Inc. | El Paso | TX | $73.9K |
| Mountain Filtration Systems, Inc. | Altoona | PA | $73.7K |
| Longley Supply Co. | Lumberton | NC | $73K |
| N Brayton LLC | Winfield | PA | $69.9K |
| Rodriguez Mechanical Contractors Inc. | Kansas City | KS | $69.1K |
| Norman S. Wright - Duckworth Mechanical Equipment Company, LLC | Fresno | CA | $69.1K |
| Noland CompanyMoraine, OH · UEI JX94SLAHWEP5 | Moraine | OH | $68.1K |
| Pendleco, LLC | Lenexa | KS | $62.8K |
| Meleney Equipment, Inc. | Jessup | MD | $62K |
| Hoffman Hydronics, LLC | Greensboro | NC | $61.5K |
| Mcardle & Walsh Incorporated | Lutherville Timonium | MD | $60.7K |
| Ravi Associates LLC | East Windsor | NJ | $60.2K |
| J. Lorber Company | Bensalem | PA | $59.2K |
| Berrios, Jose | Glendale | CA | $58K |
