Apprenticeship Sponsor — page 19 of 20
5,826 businesses with an active “Apprenticeship Sponsor” credential — administered by the Department of Labor. State file of October 1, 2026.
1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17 · 18 · 19 · 20
| Place | Business | Record | Credentials | Latest expiration |
|---|---|---|---|---|
| Naugatuck, CT | Tousled and Teased | 494E822326 | Apprenticeship Sponsor | — |
| Enfield, CT | Tower Electric & Controls, LLC | 38B81A9FC4 | Apprenticeship Sponsor | Jun 30, 2009 |
| Canton, CT | Tower Electric LLC | EC62B2F298 | Apprenticeship Sponsor | Jun 30, 2006 |
| Feeding Hills, MA | Tower Electric, LLC | 3071978145 | Apprenticeship Sponsor | Jun 30, 2014 |
| Plainville, CT | Tower Energy, LLC | F9760EE5AE | Apprenticeship Sponsor | Jun 30, 2027 |
| Centerbrook, CT | TOWER LABORATORIES LTD | 79E799F734 | Manufacturer of Drugs, Cosmetics & Medical Devices - In State + 3 more | Jun 30, 2027 |
| Woodbury, CT | TOWN & COUNTRY GLASS SHOP LLC | 3B9DBC9855 | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Stamford, CT | Town & Country Plumbing & Heating LLC | E109819777 | Apprenticeship Sponsor | Jun 30, 2009 |
| Darien, CT | Town Electric Inc. | 0FF162D943 | Apprenticeship Sponsor | Jun 30, 2014 |
| Berlin, CT | Town of Berlin | A8D73A5A10 | Apprenticeship Sponsor | Jun 30, 2013 |
| Killingly, CT | Town of Killingly | DDE020242B | Apprenticeship Sponsor | — |
| Stratford, CT | TOWN OF STRATFORD | 471DA43BE3 | Apprenticeship Sponsor | Jun 30, 2027 |
| Wethersfield, CT | TOWN OIL CO INC | 028220B386 | Home Heating Fuel Dealer + 2 more | Sep 30, 2027 |
| Trumbull, CT | TP Electric | 28A7CE5C72 | Apprenticeship Sponsor | Jun 30, 2027 |
| Milford, CT | TPC ASSOCIATES INC. | 005B0C1524 | Apprenticeship Sponsor | Jun 30, 2027 |
| Ledyard, CT | TPI Electric, LLC | 04BEE5DB8E | Apprenticeship Sponsor | Jun 30, 2027 |
| Norwich, CT | TR and Son Electric, LLC | 2585B87ECB | Apprenticeship Sponsor | Jun 30, 2026 |
| New Haven, CT | TRACEY ENERGY SERVICES LLC | 3FEA7D7B49 | Home Heating Fuel Dealer + 1 more | Sep 30, 2026 |
| Watertown, CT | TRADE TWINS, LLC | 9673144FCF | Apprenticeship Sponsor | Jun 30, 2027 |
| Bristol, CT | TRADEMARK CONTRACTORS LLC | 02DD84B613 | New Home Construction Contractor + 2 more | Mar 31, 2027 |
| Old Lyme, CT | TRADESMEN ENERGY SOLUTIONS, LLC | 9499BA18EF | Apprenticeship Sponsor | Jun 30, 2027 |
| Bloomfield, CT | Tradesmen of New England LLC | 3F66D71361 | Apprenticeship Sponsor | Jun 30, 2027 |
| Oxford, CT | Tradewind Aviation, LLC | ABAFC4986E | Apprenticeship Sponsor | — |
| Bristol, CT | Tradewind Irrigation, LLC | C16A586613 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Branford, CT | Tradewinds Heating & Cooling, LLC | 3442B8E460 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| West Hartford, CT | Tradewinds Mechanical Services | EF86AEF24F | Apprenticeship Sponsor | Jun 30, 2010 |
| Rocky Hill, CT | Trane US, Inc. | 02BF8143D1 | Apprenticeship Sponsor | Jun 30, 2027 |
| Middletown, CT | Tranmer Electric, LLC | 84480F7987 | Apprenticeship Sponsor | Jun 30, 2027 |
| Bloomfield, CT | TRANSFORMATION CUTS LLC | E498D1E18C | Apprenticeship Sponsor | Jun 30, 2027 |
| New Fairfield, CT | Transformer LLC | 7FFA48979C | Apprenticeship Sponsor | Jun 30, 2026 |
| Stratford, CT | Tratnyek Plumbing, LLC | 2CB5C3DF22 | Apprenticeship Sponsor | Jun 30, 2024 |
| Wolcott, CT | Tray's Barbershop | FE1ADD1D7A | Apprenticeship Sponsor | Jun 30, 2021 |
| East Hartford, CT | TRC SOLAR & ELECTRICAL LLC | 50B72F507C | Apprenticeship Sponsor | Jun 30, 2023 |
| Hamden, CT | Treadwell Electric Co., Inc. | A1DA253038 | Apprenticeship Sponsor | Jun 30, 2027 |
| North Haven, CT | Tremblay Enterprises LLC | 6A57E18837 | Apprenticeship Sponsor | Jun 30, 2006 |
| Bloomfield, CT | Trends Hair and Beautiful Salon | 6652E330E7 | Apprenticeship Sponsor | Jun 30, 2023 |
| Southington, CT | TREYS BARBERSHOP SHAYS BARBER LOUNGE | C5D7414B0E | Apprenticeship Sponsor | Jun 30, 2027 |
| North Haven, CT | Tri Phase Contractors, LLC | 6778A84EB8 | Apprenticeship Sponsor | Jun 30, 2027 |
| Old Saybrook, CT | TRI STATE GLASS LLC | A068BE560C | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| North Haven, CT | Tri State Maintenance Services, LLC | 885598CD9B | Apprenticeship Sponsor | Jun 30, 2019 |
| North Grosvenordale, CT | Tri State Power, LLC | EDF5366D4A | Apprenticeship Sponsor | Jun 30, 2027 |
| Stamford, CT | Tri Tech Mechanical, LLC | EFFC13D39D | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Waterbury, CT | Tri-City Electric Services, Inc. | 70EB9313FB | Apprenticeship Sponsor | Jun 30, 2019 |
| Tolland, CT | Tri-City Fire Protection LLC | 97F76CE507 | Apprenticeship Sponsor | Jun 30, 2024 |
| Milford, CT | Tri-City Heating & Cooling, LLC | A0D9044E57 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Danbury, CT | Tri-County Electric, LLC | 9813742FD4 | Apprenticeship Sponsor | Jun 30, 2027 |
| Seymour, CT | Tri-Star Security Inc. | A4E9BA57AB | Apprenticeship Sponsor | Jun 30, 2024 |
| Woodbury, CT | TRI-STAR SERVICE INC | 00A84B36EB | Major Contractor + 1 more | Jun 30, 2027 |
| Manchester, CT | TRI-STATE CONTRACTING, LLC | 41BB48C803 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Smithfield, RI | Tri-State Fire Protection Co., Inc. | D31725A3E4 | Apprenticeship Sponsor | Jun 30, 2010 |
| North Haven, CT | Triad Construction Services, LLC | ECB1D53DC2 | Apprenticeship Sponsor | Jun 30, 2017 |
| North Haven, CT | Triad Construction, LLC | 49CC84C443 | Apprenticeship Sponsor | Jun 30, 2018 |
| West Hartford, CT | Triatic, Inc. | AE00213F24 | Apprenticeship Sponsor | Jun 30, 2021 |
| Oakdale, CT | Tricom Cable | 06C5565342 | Apprenticeship Sponsor | Jun 30, 2006 |
| Milford, CT | Tricom Systems Inc. | 9F27A8347E | Apprenticeship Sponsor | Jun 30, 2016 |
| Fairfield, CT | Trident Electric, Inc. | C1EC7AAFFD | Apprenticeship Sponsor | Jun 30, 2026 |
| Hartford, CT | Trinity College LITC A24 | BAC31D881E | Apprenticeship Sponsor + 1 more | Jun 30, 2024 |
| Wolcott, CT | Trinity Contract Glazing | 210DEBD1EC | Apprenticeship Sponsor | Jun 30, 2027 |
| North Haven, CT | Trinity Electric Inc. | EABC9071E0 | Apprenticeship Sponsor | Jun 30, 2025 |
| Cheshire, CT | Trinity Solar, Inc. | 017DE60D7A | Apprenticeship Sponsor + 2 more | Jun 30, 2027 |
| Manchester, CT | Trinks Brothers LLC | EF56793737 | Apprenticeship Sponsor | Jun 30, 2017 |
| Newington, CT | Triple A Plumbing Services | F7F1D25F96 | Apprenticeship Sponsor | Jun 30, 2011 |
| Windsor, CT | TRIUMPH ACTUATION SYSTEMS | 094489E709 | Apprenticeship Sponsor | Jun 30, 2026 |
| Cheshire, CT | Triumph Electric, LLC | FE55564382 | Apprenticeship Sponsor | Jun 30, 2008 |
| Torrington, CT | Trlby Innovative, LLC | C1B2375591 | Apprenticeship Sponsor | — |
| Torrington, CT | Trobel Electric LLC | 70AE9082D3 | Apprenticeship Sponsor | Jun 30, 2006 |
| Enfield, CT | TROIANO OIL CO | A0FE92C0C5 | Home Heating Fuel Dealer + 1 more | Sep 30, 2027 |
| Redding, CT | Trojan Electric, LLC | BE6749F610 | Apprenticeship Sponsor | Jun 30, 2022 |
| Stamford, CT | TROVARELLI PLUMBING & HEATING, LLC | 5022E7D3E4 | Apprenticeship Sponsor | Jun 30, 2025 |
| Newtown, CT | TROY SECURITY SYSTEMS | EE6518FD35 | Apprenticeship Sponsor | Jun 30, 2027 |
| Farmington, CT | Tru-Precision Corporation | DCB5927709 | Apprenticeship Sponsor | Jun 30, 2027 |
| Southington, CT | TruComfort Heating and Cooling | 1954C2E800 | Apprenticeship Sponsor | Jun 30, 2027 |
| North Grosvenordale, CT | Trudeau Electric LLC | 715D703546 | Apprenticeship Sponsor | Jun 30, 2027 |
| Wallingford, CT | TRUE BLUE ENVIRONMENTAL INC | 7F21C796AB | Operator of Weighing & Measuring Devices + 2 more | Jul 31, 2027 |
| Watertown, CT | Truelove & Maclean, Inc. | 605CB9DDC8 | Apprenticeship Sponsor | Jun 30, 2027 |
| Farmington, CT | Trumpf, Inc. | 017EBE69CF | Apprenticeship Sponsor | Jun 30, 2027 |
| Hartford, CT | TT AND CA ENTERPRISES LLC | 6BF406FA1E | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Stamford, CT | TUCCINARDI PLUMBING & HEATING INC | CE42A38FDD | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Meriden, CT | Tucker Mechanical A Division of J C Higgins | D9EFD443EA | Apprenticeship Sponsor | Jun 30, 2009 |
| Simsbury, CT | Tuckson Electric, LLC | 616F647911 | Apprenticeship Sponsor | Jun 30, 2027 |
| Griswold, CT | TULLY AND SONS PLUMBING LLC | 2A51EE5CB2 | Apprenticeship Sponsor | Jun 30, 2026 |
| Farmington, CT | Turbine Technologies, Inc. | 2FF0351C11 | Apprenticeship Sponsor | Jun 30, 2018 |
| Southington, CT | Turner Electric LLC | 9F171E8B54 | Apprenticeship Sponsor | Jun 30, 2027 |
| Ridgefield, CT | Turner Mechanical Services, Inc. | 3579D232BA | Apprenticeship Sponsor | Jun 30, 2027 |
| Plainfield, CT | TURNING HEADS BARBERSHOP & BEAUTY SALON, LLC | A8AFFF5FA3 | Apprenticeship Sponsor | Jun 30, 2027 |
| Torrington, CT | Turri-Masterson, Inc | 896BA71838 | Apprenticeship Sponsor | Jun 30, 2027 |
| East Glastonbury, CT | TUTHILL ELECTRIC, LLC | 663C2CD0D4 | Apprenticeship Sponsor | Jun 30, 2027 |
| Meriden, CT | TUXIS-OHR'S FUEL INC | EFBFF97D09 | Home Heating Fuel Dealer + 3 more | Sep 30, 2027 |
| Norwich, CT | TVCCA Thames Valley Council for Community Action | 936A343330 | Apprenticeship Sponsor | Jun 30, 2021 |
| Old Lyme, CT | TVM LLC dba Montano & Sons | 307186F8AE | Apprenticeship Sponsor | Jun 30, 2018 |
| Danbury, CT | Tweeter OPCO LLC | 326B8EC714 | Apprenticeship Sponsor | Jun 30, 2009 |
| Milford, CT | Twin Electric LLC | 8DC248E176 | Apprenticeship Sponsor | Jun 30, 2027 |
| Somers, CT | Twin State Turf Farm, Inc. | 6C79129FCC | Apprenticeship Sponsor | Jun 30, 2013 |
| Durham, CT | Two Mikes Electric, LLC | 7F7647A787 | Apprenticeship Sponsor | Jun 30, 2012 |
| South Windsor, CT | TXI Custom Innovations | 0C258B58AB | Apprenticeship Sponsor | Jun 30, 2027 |
| Waterbury, CT | Tyco Electronics | 70E3E14F10 | Apprenticeship Sponsor | Jun 30, 2005 |
| Berlin, CT | TYLER EQUIPMENT CORP. OPERATORING ENGINEERS JATC 478 | D1CC0EBD73 | Apprenticeship Sponsor | Jun 30, 2024 |
| Stratford, CT | Tyler Heating, A/C, Refrigeration, LLC | 8D9DD3F56D | Apprenticeship Sponsor | Jun 30, 2027 |
| Brookfield, CT | Tyree Organization, Ltd. Denise Evensen | F52F0E70DA | Apprenticeship Sponsor | Jun 30, 2014 |
| Danbury, CT | Tyrell Security Systems | DF6FB045C9 | Apprenticeship Sponsor | Jun 30, 2021 |
| Bloomfield, CT | Tyson Electrical Contractors, LLC | 7A5DA5BD6C | Apprenticeship Sponsor | Jun 30, 2019 |
| Unionville, CT | TZ Electric, LLC | 6EC25BBA15 | Apprenticeship Sponsor | Jun 30, 2025 |
| Alpharetta, GA | U.S. South Plumbing, Inc. | C41F586C6A | Apprenticeship Sponsor | Jun 30, 2020 |
| Hamden, CT | U.S.A. Electrical Service | EB2F9D91FE | Apprenticeship Sponsor | Jun 30, 2016 |
| East Granby, CT | U.S.A. MECHANICAL - ENERGY SERVICES, LLC | 3528D71DF9 | Apprenticeship Sponsor | Jun 30, 2027 |
| East Granby, CT | U.S.A. Mechanical, LLC | 244F12A402 | Apprenticeship Sponsor | Jun 30, 2017 |
| Peekskill, NY | UA Local 21 | 7D0198D8AF | Apprenticeship Sponsor | Jun 30, 2018 |
| Milford, CT | Ucci Bros. & Sons Inc. | 81345C72BB | Apprenticeship Sponsor | Jun 30, 2009 |
| Farmington, CT | Uconn Health (UCH) | 7A18244D07 | Apprenticeship Sponsor | — |
| Hartford, CT | Ugo DiGrazia Air Conditioning, Inc. | D6100A411B | Apprenticeship Sponsor | Jun 30, 2027 |
| Wallingford, CT | Ulbrich Shaped Wire, Inc. | 63870143E2 | Apprenticeship Sponsor | Jun 30, 2025 |
| West Suffield, CT | Ulitsch Mechanical Services, LLC | 5274AC17EB | Apprenticeship Sponsor | Jun 30, 2017 |
| Shelton, CT | ULLRICH ELECTRICAL CONSTRUCTION, LLC | EB2716153D | Apprenticeship Sponsor | Jun 30, 2026 |
| Somers, CT | ULTIMATE HEATING AND COOLING MECHANICAL LLC | 76C1EC4277 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Uncasville, CT | UNCASVILLE OIL | 0500876943 | Apprenticeship Sponsor | Jun 30, 2027 |
| Bristol, CT | Undone Salon | 3D33143FE8 | Apprenticeship Sponsor | — |
| Stamford, CT | Unified Home Solutions, LLC | 071BBE4CE2 | Apprenticeship Sponsor | Jun 30, 2027 |
| Thomaston, CT | UniMetal Surface Finishing, LLC | 2FAA87938E | Apprenticeship Sponsor | Jun 30, 2020 |
| Plymouth, CT | Union Mechanical | 6F7C88CE2D | Apprenticeship Sponsor | Jun 30, 2012 |
| Manchester, CT | Unison Engine Components | 2698DB8D9E | Apprenticeship Sponsor | Jun 30, 2010 |
| Berlin, CT | Unitech Sound and Security Systems, LLC | 38C2318F9A | Apprenticeship Sponsor | Jun 30, 2027 |
| North Haven, CT | United Aluminum Corporation | 9C228DCB55 | Apprenticeship Sponsor | Jun 30, 2027 |
| Yalesville, CT | United Concrete Products Inc. | 40448B4478 | Apprenticeship Sponsor | Jun 30, 2027 |
| Simsbury, CT | United Electrical Service, Inc. | 24C1EE2D6B | Apprenticeship Sponsor | Jun 30, 2016 |
| Simsbury, CT | United Electrical Services | 8563EC63BD | Apprenticeship Sponsor | Jun 30, 2027 |
| Meriden, CT | United Electrical Solutions, Inc. | F28BECFB6A | Apprenticeship Sponsor | Jun 30, 2027 |
| Meriden, CT | United Mechanical Resources, Inc. | F8B16F2B97 | Apprenticeship Sponsor | Jun 30, 2027 |
| Windsor, CT | United Plumbers LLP | 802A736BBA | Apprenticeship Sponsor | Jun 30, 2027 |
| Southington, CT | United Stamping Services, LLC | 276DAF8D30 | Apprenticeship Sponsor | Jun 30, 2027 |
| East Hartford, CT | UNITED STEEL INC | 31D6D5BED1 | Major Contractor + 1 more | Jun 30, 2027 |
| West Hartford, CT | United Tool & Die Co DBA Precision Mfg | D762E304A2 | Apprenticeship Sponsor | Jun 30, 2027 |
| Meriden, CT | UNIVERSAL BUILDING CONTROLS INC. | 7D27CD1859 | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Fairfield, CT | Universal Building Services, LLC | 77FFFE411F | Apprenticeship Sponsor | Jun 30, 2024 |
| Storrs Mansfield, CT | UNIVERSITY OF CONNECTICUT | 0B4FAC7858 | Cheese Manufacturer + 8 more | Jun 30, 2028 |
| West Hartford, CT | University of Hartford | 32DDEB476A | Apprenticeship Sponsor + 1 more | Jun 30, 2004 |
| Wallingford, CT | Unlimited Electric Co. LLC | B9F36BE78F | Apprenticeship Sponsor | Jun 30, 2008 |
| Canterbury, CT | Unlimited Plumbing Services, LLC | 832B3191BA | Apprenticeship Sponsor | Jun 30, 2027 |
| Wilton, CT | UNTANGLED LLC | 5D47B54471 | Tv & Radio Dealer + 1 more | Aug 31, 2027 |
| Milford, CT | Up To Code Data Cabling, LLC | CE9579C42A | Apprenticeship Sponsor | Jun 30, 2012 |
| Meriden, CT | UPC, LLC | AD3362A795 | Apprenticeship Sponsor | Jun 30, 2027 |
| New Britain, CT | Upper Cuts Barber Shop | 7D6BED6124 | Apprenticeship Sponsor | Jun 30, 2024 |
| Woodstock Valley, CT | Uppercuts Barbershop, LLC | 3C461CDF6B | Apprenticeship Sponsor | Jun 30, 2027 |
| Uncasville, CT | Upscale Barber Shop, LLC | 77094F7D57 | Apprenticeship Sponsor | Jun 30, 2027 |
| Groton, CT | URS Corp. - Pfizer Facility | 562177B21A | Apprenticeship Sponsor | Jun 30, 2014 |
| Plantsville, CT | URSA Security & Control | 70D68793F2 | Apprenticeship Sponsor | Jun 30, 2027 |
| New London, CT | US Coast Guard Academy Attn: Public Works-Electrical | CD2CD1D37D | Apprenticeship Sponsor | Jun 30, 2027 |
| Pearl River, NY | USIS Electric, Inc. DBA: United States Information Services, Inc. | 7A32EF6F70 | Apprenticeship Sponsor | Jun 30, 2027 |
| Hamden, CT | UTILITY COMMUNICATIONS INC | 384DF5BF8B | Tv & Radio Dealer + 1 more | Aug 31, 2027 |
| Watertown, CT | Utitec, Inc. dba Cadence, Inc. | 83E8E2422E | Apprenticeship Sponsor | Jun 30, 2025 |
| Newtown, CT | V-Tech Systems, LLC | CD330ABEB2 | Apprenticeship Sponsor | Jun 30, 2020 |
| Naugatuck, CT | V.C.M., LLC | 7F2148660E | Apprenticeship Sponsor | Jun 30, 2025 |
| North Branford, CT | V.P. ELECTRIC INC. | E868F9E2F7 | Apprenticeship Sponsor | Jun 30, 2027 |
| Branford, CT | V.T.K. Enterprises, Inc. DBA Mr. Electric | 692DC8CFE8 | Apprenticeship Sponsor | Jun 30, 2009 |
| Bozrah, CT | Vadnais Plumbing & Heating, LLC | 693CEAB679 | Apprenticeship Sponsor | Jun 30, 2011 |
| Norwalk, CT | Vado Electrical Services LLC | 6DD949A39E | Apprenticeship Sponsor | Jun 30, 2008 |
| Plymouth, CT | Vail Electrical Construction | BA1F13455E | Apprenticeship Sponsor | Jun 30, 2026 |
| Meriden, CT | Val Darin & Son, Inc. | D7B52785E6 | Apprenticeship Sponsor | Jun 30, 2004 |
| East Hartford, CT | Valcor Communications Corp. | 7D1F56696B | Apprenticeship Sponsor | Jun 30, 2027 |
| Bridgeport, CT | VALENGTECH ELECTRICAL SERVICES LLC | F43968FB56 | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Oxford, CT | VALERI ELECTRIC, LLC | D0D09E3280 | Apprenticeship Sponsor | Jun 30, 2023 |
| Norwalk, CT | Valerio Plumbing LLC | F80B190B6A | Apprenticeship Sponsor | Jun 30, 2027 |
| Woodbridge, CT | Valhalla Electric LLC | C14A7BE805 | Apprenticeship Sponsor | Jun 30, 2026 |
| Simsbury, CT | VALLEY AIR CONDITIONING & HEATING, INC. | 8D3F48D325 | Apprenticeship Sponsor | Jun 30, 2027 |
| Canton, CT | Valley Electric, LLC | D3E15FB563 | Apprenticeship Sponsor | Jun 30, 2027 |
| Beacon Falls, CT | Valley Electrical Service | FEE9F1F644 | Apprenticeship Sponsor | Jun 30, 2027 |
| Canton, CT | Valley Energy Company, Inc. | A73C28B5B9 | Apprenticeship Sponsor | Jun 30, 2015 |
| Canton, CT | Valley Hydro Pros, LLC | 0431F8166F | Apprenticeship Sponsor | Jun 30, 2027 |
| West Cornwall, CT | Valley View Services | F5F41144D8 | Apprenticeship Sponsor | Jun 30, 2027 |
| Wallingford, CT | Vallone Electric, Inc. | 28316F4C17 | Apprenticeship Sponsor | Jun 30, 2020 |
| Trumbull, CT | Valluzzo Electric, LLC | AE022A2BAF | Apprenticeship Sponsor | Jun 30, 2017 |
| Torrington, CT | VALMARK ELECTRIC LLC | 71BB093113 | Major Contractor + 2 more | Jun 30, 2027 |
| Litchfield, CT | VAN ALLEN PLUMBING & HEATING | 84DCE6589F | Apprenticeship Sponsor | Jun 30, 2027 |
| Clinton, CT | Van Hennik Electric, LLC | F7214BE192 | Apprenticeship Sponsor | Jun 30, 2027 |
| North Stonington, CT | VANDALE ELECTRIC, LLC | 93628DB4AF | Apprenticeship Sponsor | Jun 30, 2027 |
| Griswold, CT | VanDzant LLC | 1DFBEB59F2 | Apprenticeship Sponsor | Jun 30, 2020 |
| Seymour, CT | VanEtten Plumbing & Heating, LLC | D1E40CB260 | Apprenticeship Sponsor | Jun 30, 2026 |
| Branford, CT | Vape Manufacturing Labs, Inc. | 80710D1756 | Apprenticeship Sponsor | Jun 30, 2019 |
| Moosup, CT | Varieur's Plumbing & Heating, Inc. | 26C2F341A1 | Apprenticeship Sponsor | Jun 30, 2009 |
| Danbury, CT | Vaz Plumbing Heating & Cooling | 5633E13513 | Apprenticeship Sponsor | Jun 30, 2027 |
| Groton, CT | VDF Wiring LLC | F29AC48B3F | Apprenticeship Sponsor | Jun 30, 2026 |
| Waterbury, CT | Veeco Inc. | C0974DFF8D | Apprenticeship Sponsor | Jun 30, 2019 |
| Bloomfield, CT | Venora Electric, Inc. | FAC87734AC | Apprenticeship Sponsor | Jun 30, 2027 |
| Trumbull, CT | Ventrella Mechanicals | 8155439D83 | Apprenticeship Sponsor | Jun 30, 2027 |
| Taftville, CT | Ventura Barbershop, LLC | 3A4076819E | Apprenticeship Sponsor | Jun 30, 2027 |
| Danielson, CT | Venture Communications & Security LLC | A96ED9D72C | Apprenticeship Sponsor | Jun 30, 2026 |
| Southington, CT | Venture Home Solar, LLC | 357374FF1C | Apprenticeship Sponsor | Jun 30, 2027 |
| West Hartford, CT | Verogy Holdings, LLC | 7A384F895C | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Bridgeport, CT | Verrilli Electric Company | DED12D991C | Apprenticeship Sponsor | Jun 30, 2008 |
| Wallingford, CT | Vertiv Corporation | C960D014BF | Apprenticeship Sponsor | Jun 30, 2027 |
| Woodstock Valley, CT | Veteran's Service Co., LLC | B294562B91 | Apprenticeship Sponsor | Jun 30, 2006 |
| Rocky Hill, CT | VI Mechanical / Lincoln Door Systems | 3EFD492D85 | Apprenticeship Sponsor | Jun 30, 2013 |
| New Milford, CT | Vial Electric & Company | 9B42E647ED | Apprenticeship Sponsor | Jun 30, 2027 |
| Trumbull, CT | VIC Enterprises, LLC | 5A29B3854B | Apprenticeship Sponsor | Jun 30, 2027 |
| Meriden, CT | Victor Tool Co., Inc. | 6D25AC3E70 | Apprenticeship Sponsor | Jun 30, 2016 |
| Stratford, CT | Victoria Soto Preschool | AE2E760B33 | Apprenticeship Sponsor | Jun 30, 2027 |
| Seymour, CT | Victory Plumbing & Heating Co., Inc. | A1DBC2DDA6 | Apprenticeship Sponsor | Jun 30, 2006 |
| Waterbury, CT | VIERRA HEATING & COOLING, LLC | 105A251D7B | Apprenticeship Sponsor | Jun 30, 2027 |
| East Haven, CT | Viglione Heating & Cooling, Inc. | B39A0968D2 | Apprenticeship Sponsor | Jun 30, 2027 |
| Bridgeport, CT | VIKING CONSTRUCTION INC | B2A49AE28F | Major Contractor + 3 more | Jun 30, 2027 |
| Newington, CT | Viking Electric Co., Inc. | 1B6D2BC74A | Apprenticeship Sponsor | Jun 30, 2019 |
| Danbury, CT | Viking Electrical Contracting, LLC | 06FE2ED7F5 | Apprenticeship Sponsor | Jun 30, 2013 |
| Newington, CT | Viking Electrical Contractors, LLC | 5107FDD379 | Apprenticeship Sponsor | Jun 30, 2027 |
| West Hartford, CT | VIKING FUEL OIL COMPANY, INC. | 43383EA3D6 | Apprenticeship Sponsor | Jun 30, 2027 |
| Newington, CT | Vilardi Plumbing & Heating, LLC | A37C4296FF | Apprenticeship Sponsor | Jun 30, 2014 |
| Moosup, CT | Village Barber Shop | 084E2CD80E | Apprenticeship Sponsor | Jun 30, 2022 |
| Newtown, CT | Village Barbershop | DC9EE51986 | Apprenticeship Sponsor | Jun 30, 2025 |
| Cheshire, CT | Village Oil Inc. | 604AB625EB | Apprenticeship Sponsor | Jun 30, 2008 |
| Waterbury, CT | Villwell Builders I, LLC | 34B4CDBE21 | Apprenticeship Sponsor | Jun 30, 2023 |
| Rockfall, CT | Vincent Cahill and Sons Excavating Inc | 7665629117 | Apprenticeship Sponsor | Jun 30, 2027 |
| Naugatuck, CT | Vincent R. Cascella Plumbing & Heating LLC | F4BED77DAF | Apprenticeship Sponsor | Jun 30, 2005 |
| Monroe, CT | VIP Security & Consulting, Inc. | 673A437DAE | Apprenticeship Sponsor | Jun 30, 2024 |
| Newington, CT | Visconti Electric LLC | A29157F8BD | Apprenticeship Sponsor | Jun 30, 2015 |
| Hamden, CT | Viscuso Electric & Son, LLC | 93304D0807 | Apprenticeship Sponsor | Jun 30, 2014 |
| Torrington, CT | Vision Electric Inc. | F4A51FCC3F | Apprenticeship Sponsor | Jun 30, 2027 |
| Newington, CT | Vision Point LLC | 144E1A4051 | Apprenticeship Sponsor | Jun 30, 2012 |
| Southington, CT | Vision Solar, LLC | E5DCE0834C | Apprenticeship Sponsor | Jun 30, 2024 |
| Milford, CT | Vital Electric, LLC | 6A02AD3B8C | Apprenticeship Sponsor | Jun 30, 2026 |
| Bridgeport, CT | VITAL ELECTRICAL SYSTEMS LLC | 66C8F403E6 | Apprenticeship Sponsor | Jun 30, 2017 |
| Plainville, CT | VITALE ELECTRIC LLC | 45A8561F50 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Bridgeport, CT | Viva Beauty Salon & Co | 4DEF927B55 | Apprenticeship Sponsor | Jun 30, 2026 |
| Greenwich, CT | Vivian Electric, Inc. | FF2654817B | Apprenticeship Sponsor | Jun 30, 2021 |
| North Haven, CT | Vivint Solar Developer, LLC Sunrun Solar | 652716026E | Apprenticeship Sponsor | Jun 30, 2022 |
| Vernon, CT | VMS Construction Company | 38508143F5 | Apprenticeship Sponsor | Jun 30, 2026 |
| Darien, CT | Vogue Electric | 3ED612F33E | Apprenticeship Sponsor | Jun 30, 2026 |
| Bridgeport, CT | Voka Mechanical Corp | 04C8BA13EE | Apprenticeship Sponsor | Jun 30, 2019 |
| Fairfield, CT | Voka Plumbing & Heating, Inc. | 6BE8DBAC68 | Apprenticeship Sponsor | Jun 30, 2027 |
| Westbrook, CT | Volt-Tech, LLC | BA28E21C8D | Apprenticeship Sponsor | Jun 30, 2027 |
| Clinton, CT | Voltech Electric, LLC | 58F49A5F2B | Apprenticeship Sponsor | Jun 30, 2024 |
| Guilford, CT | VOLTZ ELECTRIC LLC | 396F26E7FA | Apprenticeship Sponsor | Jun 30, 2027 |
| South Windsor, CT | VULCAN SECURITY TECHNOLOGIES INC | E8668EFC62 | Major Contractor + 1 more | Jun 30, 2027 |
| Norwich, CT | Vznrys Barbershop | 54F156D683 | Apprenticeship Sponsor | Jun 30, 2027 |
| Plantsville, CT | W & M Sprinkler-NYC, LLC dba W & M Fires Protection Services | 2DFE19C01C | Apprenticeship Sponsor | Jun 30, 2027 |
| Middlefield, CT | W. H. Oil & Gas LLC | E8388FAB64 | Apprenticeship Sponsor | Jun 30, 2015 |
| Willington, CT | W. J. Cyr LLC | 983DDDEDE0 | Apprenticeship Sponsor | Jun 30, 2008 |
| Chaplin, CT | W. L. Villa Plumbing & Heaing | 17A42C313E | Apprenticeship Sponsor | Jun 30, 2005 |
| Sharon, CT | W.B. CASE LLC | 680A1D0033 | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| South Windsor, CT | W.B. DICKENSON PLUMBING & HEATING | 26E60D7093 | Apprenticeship Sponsor | Jun 30, 2027 |
| Willimantic, CT | W.F. Lebeau Plumbing & Heating, Inc. | DA1E97555F | Apprenticeship Sponsor | Jun 30, 2027 |
| Willimantic, CT | W.H.E. Fire Protection | 9BDA2D9FDA | Apprenticeship Sponsor | Jun 30, 2024 |
| East Haven, CT | W.J. Dornfeld Company, Inc., The | 14964F105A | Apprenticeship Sponsor | Jun 30, 2013 |
| Windsor Locks, CT | W.L. Heating & Cooling, LLC | 381469F172 | Apprenticeship Sponsor | Jun 30, 2019 |
| Tolland, CT | Walch & Company, Inc. | 50D2BD002F | Apprenticeship Sponsor | Jun 30, 2013 |
| Old Saybrook, CT | Waldo Renewable Electric, LLC | B0644F788F | Apprenticeship Sponsor | Jun 30, 2013 |
| Torrington, CT | Walker Electrical Contractors, LLC | 47DC7B4BC4 | Apprenticeship Sponsor | Jun 30, 2027 |
| Ansonia, CT | Walsh Family Contracting LLC | 64C84A6AAD | Apprenticeship Sponsor | Jun 30, 2020 |
| Rockfall, CT | Walter Cihocki & Son | 4BC76CD751 | Apprenticeship Sponsor | Jun 30, 2016 |
| New London, CT | Walter Electric, LLC | 2993621B57 | Apprenticeship Sponsor | Jun 30, 2027 |
| Wallingford, CT | Walton Electric, LLC | E5A701AAFC | Apprenticeship Sponsor | Jun 30, 2018 |
| Enfield, CT | Wanczyk Electric, LLC | 5BF8DADD0D | Apprenticeship Sponsor | Jun 30, 2027 |
| Stamford, CT | Warco Plumbing & Heating Inc. | E4A617CDE3 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Oxford, CT | Ward Heating and Cooling, LLC | CFA83E3EA6 | Apprenticeship Sponsor | Jun 30, 2027 |
| Canterbury, CT | WarMac Electric | 204F9E503F | Apprenticeship Sponsor | Jun 30, 2007 |
| Manchester, CT | Warmth For Less, Inc. | F44D0DE376 | Apprenticeship Sponsor | Jun 30, 2007 |
| Vernon, CT | Warren J. Gottier Plumbing & Heating, Inc. | D74D13EB33 | Apprenticeship Sponsor | Jun 30, 2027 |
| Washington, CT | Washington Heating & Plumbing, LLC | FAEE04D96E | Apprenticeship Sponsor | Jun 30, 2017 |
| Windsor Locks, CT | WAT HOLDING LLC | FAD25E86F0 | Home Heating Fuel Dealer + 2 more | Sep 30, 2027 |
| Bridgeport, CT | Watchdog Security Systems, Inc. | 4A9E8CACDB | Apprenticeship Sponsor | Jun 30, 2023 |
| Ansonia, CT | Water Dr., LLC | D633391621 | Apprenticeship Sponsor | Jun 30, 2027 |
| New Preston, CT | Water Heaters By Us, LLC | 3397A66B5C | Apprenticeship Sponsor | Jun 30, 2009 |
| Thomaston, CT | Water Systems Specialties, LLC | CF3DC74D49 | Apprenticeship Sponsor | Jun 30, 2022 |
| Thomaston, CT | Water Systems Specialties/RWA Well services | 41CE81746A | Apprenticeship Sponsor | Jun 30, 2026 |
| Dayville, CT | Water Treatment Inc. | F13A2E8D28 | Apprenticeship Sponsor | Jun 30, 2024 |
| Coventry, CT | Water Wizards Irrigation, LLC | 98223E660A | Apprenticeship Sponsor | Jun 30, 2027 |
| Clinton, CT | Water-Flo, Inc. | A08A6D281D | Apprenticeship Sponsor + 2 more | Jun 30, 2027 |
| Waterbury, CT | Waterbury Fire Department | 91197DDD9B | First Responder + 1 more | Mar 31, 2027 |
| Waterbury, CT | Waterbury Glass, Inc. | 21DCEAD0F8 | Apprenticeship Sponsor | Jun 30, 2008 |
| Waterbury, CT | WATERBURY HOSPITAL, THE | F8A08294F9 | Apprenticeship Sponsor | Jun 30, 2008 |
| Waterbury, CT | Waterbury Public Schools | 994848BED4 | Apprenticeship Sponsor | Jun 30, 2026 |
| Waterbury, CT | Waterbury Swiss Automatics, Inc. | FCC682AE12 | Apprenticeship Sponsor | Jun 30, 2026 |
| Waterford, CT | WATERFORD ELECTRICAL COMPANY | D25971EED1 | Apprenticeship Sponsor | Jun 30, 2027 |
| Bethel, CT | Waterman Electric LLC | 482EE58AF3 | Apprenticeship Sponsor | Jun 30, 2027 |
| Bridgeport, CT | WATERS CONSTRUCTION CO. INC | A93609636E | Major Contractor + 1 more | Jun 30, 2027 |
| Watertown, CT | Watertown Plastics, Inc. | 7137AACE18 | Apprenticeship Sponsor | Jun 30, 2005 |
| Ivoryton, CT | Waterworks Irrigation | 6AD0B12052 | Apprenticeship Sponsor | Jun 30, 2026 |
| East Hartford, CT | Watkins Mechanical, LLC | 00EAB8D571 | Apprenticeship Sponsor | Jun 30, 2012 |
| Windsor Locks, CT | Wayne & Son's Lawn Sprinkler, LLC | FFC5918209 | Apprenticeship Sponsor | Jun 30, 2023 |
| Holliston, MA | Wayne J. Griffin Electric, Inc. | F889E31387 | Apprenticeship Sponsor | Jun 30, 2027 |
| Bristol, CT | Wayne Sharp Plumbing & Heating, LLC | 1930C355EF | Apprenticeship Sponsor | Jun 30, 2026 |
| Bridgeport, CT | WC McBride Electric | 07F02E2167 | Apprenticeship Sponsor | — |
| Waterbury, CT | WCES, Inc. | B404FAEF37 | Apprenticeship Sponsor | Jun 30, 2027 |
| Putnam, CT | WD Home Services, LLC | E74E2BB56C | Apprenticeship Sponsor | Jun 30, 2027 |
| New Milford, CT | We Do Windows, LLC dba I Do Windows | 2D2CB4C4CE | Apprenticeship Sponsor | Jun 30, 2014 |
| Dayville, CT | Web Industries Hartford, Inc. | A6A61EDA46 | Apprenticeship Sponsor | Jun 30, 2027 |
| Thomaston, CT | Weeks Precision Inc. | 188D6E8EA1 | Apprenticeship Sponsor | Jun 30, 2004 |
| Cheshire, CT | Welburn Electric Contractors, LLC | F5FBE13231 | Apprenticeship Sponsor | Jun 30, 2020 |
| Bristol, CT | Wells Electric, LLC | 3C6373F1C9 | Apprenticeship Sponsor | Jun 30, 2026 |
| Norwalk, CT | Welte Electronic Systems, LLC | AB6EB35D64 | Apprenticeship Sponsor | Jun 30, 2025 |
| Wallingford, CT | Wendt Electric, LLC | C6B16D959E | Apprenticeship Sponsor | Jun 30, 2027 |
| Middlefield, CT | Wepco Plastics, Inc. | 25B6FECDE2 | Apprenticeship Sponsor | Jun 30, 2020 |
| Bridgewater, CT | Werner Water Systems LLC | C98D738FE1 | Apprenticeship Sponsor | Jun 30, 2027 |
| New Milford, CT | Werner Well & Pump Service, LLC | E53DFE5C38 | Apprenticeship Sponsor | Jun 30, 2023 |
| Middletown, CT | Wesleyan University | A1A00E9A70 | Apprenticeship Sponsor | Jun 30, 2027 |
| Meriden, CT | Wess Tool & Die Co., Inc. | 35DFFFDD89 | Apprenticeship Sponsor | Jun 30, 2025 |
| Waterbury, CT | Wesson Energy Inc. | 0FE5135814 | Apprenticeship Sponsor | Jun 30, 2017 |
| East Hartford, CT | West Electric LLC | EACBEBF43E | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| West Hartford, CT | West Hartford Electric, LLC | ED55C3124C | Apprenticeship Sponsor | Jun 30, 2027 |
| Ellington, CT | West Main Barber Shop dba Flint Barber, LLC | 328A27A3E8 | Apprenticeship Sponsor | Jun 30, 2025 |
| Wilton, CT | West Plumbing Services, LLC | 9CFFEF6FF1 | Apprenticeship Sponsor | Jun 30, 2025 |
| Seymour, CT | West Shore Electric, LLC | DB8FC594BF | Apprenticeship Sponsor | Jun 30, 2017 |
| West Suffield, CT | WEST SIDE OIL CO. | 4F092D4362 | Home Heating Fuel Dealer + 3 more | Sep 30, 2027 |
Alphabetical order — this site ranks no one. Businesses with at least one active credential in the Connecticut eLicensing file of October 1, 2026. How to read this.