Apprenticeship Sponsor — page 8 of 20
5,826 businesses with an active “Apprenticeship Sponsor” credential — administered by the Department of Labor. State file of October 1, 2026.
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| Place | Business | Record | Credentials | Latest expiration |
|---|---|---|---|---|
| Montville, CT | Fluor Enterprises, Inc. Rand-Whitney Containerboard | F08FEECBC5 | Apprenticeship Sponsor | Jun 30, 2027 |
| Groton, CT | Flynn Plumbing & Heating | 37C5A2D1F0 | Apprenticeship Sponsor | Jun 30, 2016 |
| Plainville, CT | FO Electric, LLC | B6AB057139 | Apprenticeship Sponsor | Jun 30, 2024 |
| Chester, CT | FOLEY FURNACE INC | 9931AD1613 | Home Heating Fuel Dealer + 2 more | Sep 30, 2027 |
| Danbury, CT | Foley's Pump Service, Inc. | 8521AD7253 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| South Windsor, CT | Folsom Construction, LLC | C46AFD8FE1 | Apprenticeship Sponsor | Jun 30, 2015 |
| Middletown, CT | Fontaine Electric LLC | CFAA1B0859 | Apprenticeship Sponsor | Jun 30, 2013 |
| Forestville, CT | Fontaine Mechanical Heating & A/C, Inc. | DBE3264436 | Apprenticeship Sponsor | Jun 30, 2027 |
| East Hartford, CT | Foran Bros. Contractors, Inc. | 920AD97DA3 | Apprenticeship Sponsor | Jun 30, 2026 |
| Stamford, CT | Force Fire Protection | 40C5D03BEB | Apprenticeship Sponsor | Jun 30, 2028 |
| Southbury, CT | Forced Air Sheet Metal, Inc. | 4CC0C515E1 | Apprenticeship Sponsor | Jun 30, 2008 |
| Hartford, CT | Foreigna Barber & Beauty Salon | 842AAC6EA6 | Apprenticeship Sponsor | Jun 30, 2018 |
| East Windsor, CT | Foremost Mechanical Services, LLC | 8B2D6195BE | Apprenticeship Sponsor | Jun 30, 2026 |
| Beacon Falls, CT | Forest Construction Company, LLC | F0CA7C0301 | Apprenticeship Sponsor + 2 more | Jun 30, 2027 |
| Fairfield, CT | Forger-Kunkel Plumbing & Heating, LLC | 2E98E76CD4 | Apprenticeship Sponsor | Jun 30, 2027 |
| Chester, CT | Forst Plumbing & Heating, LLC | 8E4BD365E9 | Apprenticeship Sponsor | Jun 30, 2026 |
| Seymour, CT | Forster Precision Tool, LLC | 5D161425BE | Apprenticeship Sponsor | Jun 30, 2023 |
| Shelton, CT | Forstrom Electric Company Inc. | BBCA52FAFF | Apprenticeship Sponsor | Jun 30, 2013 |
| Groton, CT | Fort Wright Electric Inc. | 8B7FB7F2BE | Apprenticeship Sponsor | Jun 30, 2009 |
| New Haven, CT | Fortin Electric Co. | 7E98C10E6F | Apprenticeship Sponsor | Jun 30, 2027 |
| Waterbury, CT | Forum Plastics, LLC | 729753B448 | Apprenticeship Sponsor | Jun 30, 2024 |
| Stafford, CT | Forziati Electric LLC | A24B690E9B | Apprenticeship Sponsor | Jun 30, 2019 |
| Putnam, CT | Foster Corporation | 53A8011D53 | Apprenticeship Sponsor | Jun 30, 2017 |
| East Hampton, CT | Four Point Mechanical LLC | DD4D137720 | Apprenticeship Sponsor | Jun 30, 2027 |
| Bristol, CT | Four Star Manufacturing Co. | A6A82F06AD | Apprenticeship Sponsor | Jun 30, 2021 |
| Harwinton, CT | Fournier Irrigation South, LLC | ECA8157731 | Apprenticeship Sponsor | Jun 30, 2024 |
| East Hartford, CT | FOURNIER IRRIGATION, LLC | 91C9A7C7BE | Apprenticeship Sponsor | Jun 30, 2025 |
| Bristol, CT | Fourslide Spring & Stamping, Inc. | 48B5C9AB63 | Apprenticeship Sponsor | Jun 30, 2027 |
| Milford, CT | Fox Electric LLC | F19B406094 | Apprenticeship Sponsor | Jun 30, 2014 |
| Tolland, CT | Fox Heating Service Inc. | E468847BAA | Apprenticeship Sponsor | Jun 30, 2027 |
| Brookfield, CT | FPH, LLC | 0CCEF26F86 | Apprenticeship Sponsor | Jun 30, 2027 |
| Durham, CT | Francis P. Doody LLC | F537901BF3 | Apprenticeship Sponsor | Jun 30, 2015 |
| Farmington, CT | Frank A. Cadwell Corp., The | B6BC1D49C7 | Apprenticeship Sponsor | Jun 30, 2004 |
| Waterbury, CT | Frank A. Garrity Company, Inc. | E8DB6CB408 | Apprenticeship Sponsor | Jun 30, 2019 |
| Bridgeport, CT | Frank A. Martinelli, LLC | 905605B8C2 | Apprenticeship Sponsor | Jun 30, 2019 |
| Ridgefield, CT | Frank Clark Electric, LLC | 3FB70290D2 | Apprenticeship Sponsor | Jun 30, 2027 |
| Naugatuck, CT | Frank Fazzino Plumbing & Heating Inc. | 7F7B92711F | Apprenticeship Sponsor | Jun 30, 2012 |
| Hartford, CT | Frank L. Macca Plumbing & Heating, Inc. | 11D530954D | Apprenticeship Sponsor | Jun 30, 2027 |
| Stamford, CT | Frank Lopiano, Co. | BA3FC31374 | Apprenticeship Sponsor | Jun 30, 2027 |
| Fairfield, CT | Frank Rizzetta | A2EC7827B8 | Apprenticeship Sponsor | Jun 30, 2027 |
| Bridgeport, CT | Frank's Inground Sprinler | 7A6D3EB6F0 | Apprenticeship Sponsor | Jun 30, 2014 |
| Stratford, CT | FRANK'S PLUMBING & REMODELING | 569525F642 | Apprenticeship Sponsor | Jun 30, 2027 |
| New Fairfield, CT | Franklin Electric, Inc. | 06F111A9EB | Apprenticeship Sponsor | Jun 30, 2027 |
| North Franklin, CT | Franklin Farms, Inc. | FF62E29005 | Apprenticeship Sponsor | Jun 30, 2006 |
| Stamford, CT | Franklin Glass & Aluminum | 0E0AAA2A37 | Apprenticeship Sponsor | Jun 30, 2025 |
| Newington, CT | Frasal Tool Co., Inc. | C30B88E27B | Apprenticeship Sponsor | Jun 30, 2019 |
| Stamford, CT | Fraser Plumbing LLC | 5B52539921 | Apprenticeship Sponsor | Jun 30, 2027 |
| Norwalk, CT | Frattaroli Electric LLC | 0ED6AAA6D3 | Apprenticeship Sponsor | Jun 30, 2026 |
| New Canaan, CT | Frattaroli Plumbing & Heating Co. | 1274065504 | Apprenticeship Sponsor | Jun 30, 2008 |
| Stratford, CT | Fred Paige Plumbing & Heating | CD2AD3F384 | Apprenticeship Sponsor | Jun 30, 2010 |
| East Hartford, CT | Fred's Plumbing & Heating Service LLC | 77A89B677E | Apprenticeship Sponsor | Jun 30, 2010 |
| Meriden, CT | Frederick Nadile Plumbing & Heating | 41CA00EF27 | Apprenticeship Sponsor | Jun 30, 2009 |
| Ansonia, CT | FREE ENTERPRISE TELEPHONE SALES | 6555CD7AEC | Apprenticeship Sponsor | Jun 30, 2027 |
| Temecula, CA | Freedom Forever Connecticut, LLC | 0079E86358 | Apprenticeship Sponsor | Jun 30, 2023 |
| Danbury, CT | Fresh Air Heating & Cooling, LLC | 69C671EFDF | Apprenticeship Sponsor | Jun 30, 2012 |
| Berlin, CT | Friedmann Electric Inc. | 4065BE91FC | Apprenticeship Sponsor | Jun 30, 2027 |
| New Haven, CT | FRIENDS CENTER FOR CHILDREN | 6B44FB5C6A | Child Care Center + 3 more | Nov 30, 2028 |
| Harwinton, CT | FRITZ AIR, LLC | 66D1E542CD | Apprenticeship Sponsor | Jun 30, 2026 |
| Thomaston, CT | Frontline Electric Contractors LLC | 1FC3CA0F87 | Apprenticeship Sponsor | Jun 30, 2026 |
| Thomaston, CT | Frontline Electric LLC | A625172B8C | Apprenticeship Sponsor | Jun 30, 2027 |
| Rocky Hill, CT | Frost Air LLC | 64CDBDB968 | Apprenticeship Sponsor | Jun 30, 2012 |
| Essex, CT | Frosti Water Cure, LLC | 19960778F2 | Apprenticeship Sponsor | Jun 30, 2026 |
| Quaker Hill, CT | Frozen Pipes Plumbing & Heating | CB66BFD169 | Apprenticeship Sponsor | Jun 30, 2010 |
| Ledyard, CT | Frye's Barbershop | C8EF428C72 | Apprenticeship Sponsor | Jun 30, 2025 |
| Danbury, CT | FS Plumbing & Heating, LLC | 7D2D4B1F11 | Apprenticeship Sponsor | Jun 30, 2021 |
| South Windsor, CT | FTS USA LLC | 7ED8853334 | Apprenticeship Sponsor | Jun 30, 2019 |
| Meriden, CT | FUDA CONSTRUCTION LLC | C6B8499321 | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Stonington, CT | Full Scale Electric, Inc. | 963785A92E | Apprenticeship Sponsor | Jun 30, 2024 |
| North Haven, CT | FULLER INSTALLATIONS INC | 47395DAC16 | Dealer of Weighing & Measuring Devices + 1 more | Dec 31, 2026 |
| Southbury, CT | Fulton Electrical Contractors | CCB141D248 | Apprenticeship Sponsor | Jun 30, 2027 |
| West Haven, CT | Funk Boiler Works, Inc. | D29D56D59C | Apprenticeship Sponsor | Jun 30, 2027 |
| Wallingford, CT | Furnace Man | BAD3859746 | Apprenticeship Sponsor | Jun 30, 2017 |
| Cheshire, CT | Fusion Cable Systems | 860952EE94 | Apprenticeship Sponsor | Jun 30, 2022 |
| Colchester, CT | Fusion Data Comm, Inc. | 028CD4FBD7 | Apprenticeship Sponsor | Jun 30, 2004 |
| Colchester, CT | Fusion Electric, LLC | F750C8682C | Apprenticeship Sponsor | Jun 30, 2015 |
| Durham, CT | Future Com, LLC | 74EB3A8F2F | Apprenticeship Sponsor | Jun 30, 2025 |
| New Britain, CT | Future Mechanical, LLC | 4E5703D9D1 | Apprenticeship Sponsor | Jun 30, 2024 |
| Wilton, CT | Future Perfect LLC | 72BE4DC1CE | Apprenticeship Sponsor | Jun 30, 2017 |
| Manchester, CT | Future Rewards, Inc. dba Wilson Oil Co. | E2AABED79B | Apprenticeship Sponsor | Jun 30, 2022 |
| Bristol, CT | G & B Electric LLC | 84AB685F9C | Apprenticeship Sponsor | Jun 30, 2013 |
| Trumbull, CT | G & O MECHANICAL LLC | 014F3E9B9B | Apprenticeship Sponsor | Jun 30, 2027 |
| Naugatuck, CT | G & R Manufacturing | 23C2470BA4 | Apprenticeship Sponsor | Jun 30, 2027 |
| South Windsor, CT | G & R Valley, Inc. | 2FE997FF65 | Apprenticeship Sponsor | Jun 30, 2021 |
| Monroe, CT | G & S Electric | 478882538B | Apprenticeship Sponsor | Jun 30, 2023 |
| Meriden, CT | G J GIACCO OIL INC | 6327BE21DB | Operator of Weighing & Measuring Devices + 1 more | Jul 31, 2027 |
| New Haven, CT | G L CAPASSO LLC | 58AD541467 | Major Contractor + 4 more | Jun 30, 2027 |
| Hamden, CT | G. Gray Electric | 900B0B0819 | Apprenticeship Sponsor | Jun 30, 2026 |
| Cheshire, CT | G.C. ELECTRIC, INC. | C819F73AA6 | Apprenticeship Sponsor | Jun 30, 2026 |
| Easton, CT | G.N. Sylvia Plumbing & Heating LLC | CE8CE184C7 | Apprenticeship Sponsor | Jun 30, 2026 |
| North Stonington, CT | G.S. Roy Electrical Services Inc. | BEBFD902C3 | Apprenticeship Sponsor | Jun 30, 2010 |
| Cheshire, CT | G.W. Inc. | 55EFA22CAF | Apprenticeship Sponsor | Jun 30, 2017 |
| Middlebury, CT | G1CUTS BARBERSHOP, LLC | 526D9F7CBE | Apprenticeship Sponsor | Jun 30, 2026 |
| Brookfield, CT | Gabe's Electrical Services, LLC | 9775AE34F1 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Kensington, CT | Gagliardi Electric, LLC | DD4C746F78 | Apprenticeship Sponsor | Jun 30, 2010 |
| Newington, CT | GAGNON ELECTRICAL CONTRACTING LLC | 04DE665380 | Major Contractor + 1 more | Jun 30, 2027 |
| Bethel, CT | Gaita Electric, Inc. | A61D71C61B | Apprenticeship Sponsor | Jun 30, 2009 |
| Monroe, CT | Gallagher Pump Services LLC | BBC02B66A0 | Apprenticeship Sponsor | Jun 30, 2026 |
| Danbury, CT | Gallo Electric, LLC | 7D4F43E813 | Apprenticeship Sponsor | Jun 30, 2013 |
| Greenwich, CT | Galvin Electric, LLC | 53C98A016D | Apprenticeship Sponsor | Jun 30, 2014 |
| Southington, CT | Gamco Electric LLC | D3C98E2CF8 | Apprenticeship Sponsor | Jun 30, 2024 |
| Norwich, CT | Garage Barbershop LLC | B01A24347E | Apprenticeship Sponsor | Jun 30, 2026 |
| Torrington, CT | Gardella Electric | 76655C21D6 | Apprenticeship Sponsor | Jun 30, 2008 |
| Torrington, CT | Gardella Mechanical Service | 06640660D4 | Apprenticeship Sponsor | Jun 30, 2009 |
| Colchester, CT | GARDINER ELECTRIC, LLC | A55D6B352A | Apprenticeship Sponsor | Jun 30, 2027 |
| Middletown, CT | Gargano Heating & Cooling LLC | BB15ED29A6 | Apprenticeship Sponsor | Jun 30, 2026 |
| Brookfield, CT | Gary Fisher Electrical Contractors | 134C8AC2B1 | Apprenticeship Sponsor | Jun 30, 2008 |
| Oxford, CT | GARY FRANCO'S PLUMBING LLC | 5F44C219D3 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Kent, CT | Gary Morin Plumbing & Heating | AE9373E53E | Apprenticeship Sponsor | Jun 30, 2012 |
| Southbury, CT | Gary's Pump Service, LLC | 4EBA9C3C6F | Apprenticeship Sponsor | Jun 30, 2006 |
| Bristol, CT | GASKI ENERGY LLC | 7A3DCCA010 | Home Heating Fuel Dealer + 2 more | Sep 30, 2027 |
| Westport, CT | Gator Plumbing Services LLC | 3B7C1A68E4 | Apprenticeship Sponsor | Jun 30, 2009 |
| Bridgeport, CT | Gatsby Glass Of Fairfield County | 5DBE1A867F | Apprenticeship Sponsor | Jun 30, 2028 |
| Simsbury, CT | Gauthier Electric, LLC | F8CE95F6ED | Apprenticeship Sponsor | Jun 30, 2007 |
| Wallingford, CT | GAYLORD HOSPITAL | EED5BC1CD8 | Chronic Disease Hospital + 5 more | Mar 31, 2028 |
| Fairfield, CT | GB plumbing and son's, llc | B10340A831 | Apprenticeship Sponsor | Jun 30, 2027 |
| New Haven, CT | GC Construction Company LLC | 9AB21CDD91 | Apprenticeship Sponsor | Jun 30, 2008 |
| Rocky Hill, CT | GCM Electrical Services | 2CF114695F | Apprenticeship Sponsor | Jun 30, 2018 |
| New Milford, CT | Geary's Plumbing, LLC. | E69A002776 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Thomaston, CT | Geddes Electric, LLC | 5280AAA4D9 | Apprenticeship Sponsor | Jun 30, 2027 |
| East Hartford, CT | Gelsomino Electric LLC | A9EB1E1F44 | Apprenticeship Sponsor | Jun 30, 2006 |
| Norwalk, CT | Gem Electric Company LLC | BA4E42C16A | Apprenticeship Sponsor | Jun 30, 2024 |
| Waterbury, CT | Gem Manufacturing Co., Inc. | 849BEB4276 | Apprenticeship Sponsor | Jun 30, 2027 |
| Lincoln, RI | Gem Mechanical Services | E5D531CBD3 | Apprenticeship Sponsor | Jun 30, 2015 |
| Lincoln, RI | GEM PLUMBING & HEATING | 3C0F705FF4 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Manchester, CT | Gem Plumbing & Heating Services, Inc. | 8C54159017 | Apprenticeship Sponsor | Jun 30, 2009 |
| Waterbury, CT | GEM Plumbing LLC | 7AA25EDDF6 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Southington, CT | Gemco Manufacturing Co., Inc. | 2286303B7F | Apprenticeship Sponsor | Jun 30, 2027 |
| Cheshire, CT | Gemtun Mechanical, LLC | F5BF65D67B | Apprenticeship Sponsor | Jun 30, 2011 |
| Fairfield, CT | Gene's Plumbing | 3DB275A8AA | Apprenticeship Sponsor | Jun 30, 2012 |
| Waterbury, CT | General Heat Treating Co., Inc. | AB360472A3 | Apprenticeship Sponsor | Jun 30, 2009 |
| Southington, CT | General Machine Company, Inc. | D39464D170 | Apprenticeship Sponsor | — |
| Quaker Hill, CT | General Oil of Quaker Hill, Inc. | 14FC5A61A0 | Apprenticeship Sponsor | Jun 30, 2014 |
| Glastonbury, CT | Generation Plumbing Services, LLC | DC2E191F84 | Apprenticeship Sponsor | Jun 30, 2027 |
| Lyme, CT | Generation Services | 1E1B0F23B8 | Apprenticeship Sponsor | Jun 30, 2012 |
| Danbury, CT | Genesis Security LLC | E1E51C19D8 | Apprenticeship Sponsor | Jun 30, 2026 |
| Hamden, CT | Genexo Associates, LLC | 03737C2F3F | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Prospect, CT | Genova Electrical Service LLC | 677510BF66 | Apprenticeship Sponsor | Jun 30, 2024 |
| Norwalk, CT | Genovese Electrical Contracting, Inc. | 8C65341B24 | Apprenticeship Sponsor | Jun 30, 2010 |
| Tolland, CT | GENOVESI CONSTRUCTION LLC | 0D4310B41E | Major Contractor + 3 more | Jun 30, 2027 |
| Roxbury, CT | Genua Electric LLC | 7CE1CF1B11 | Apprenticeship Sponsor | Jun 30, 2009 |
| New Haven, CT | Geo M. Hatch Company, LLC. | 8B3E8F37CB | Apprenticeship Sponsor | Jun 30, 2023 |
| Madison, CT | GEO Plumbing & Heating LLC | 174B261EB7 | Apprenticeship Sponsor | Jun 30, 2027 |
| Woodbury, CT | George A. Green Inc. | F547160EC9 | Apprenticeship Sponsor | Jun 30, 2023 |
| North Haven, CT | George D. Porto Plumbing & Heating, Inc. | 53B7CA84C5 | Apprenticeship Sponsor | Jun 30, 2017 |
| Southington, CT | George Dudac Plumbing | 9BB73835BC | Apprenticeship Sponsor | Jun 30, 2027 |
| West Haven, CT | George Ellis Company | 2A3D6305F2 | Apprenticeship Sponsor | Jun 30, 2007 |
| Guilford, CT | George F. Beauvais & Son Inc. | 42A9B26256 | Apprenticeship Sponsor | Jun 30, 2025 |
| Meriden, CT | George J. Mack & Sons, Inc. | B42C42F0A1 | Apprenticeship Sponsor | Jun 30, 2008 |
| Central Village, CT | George's Plumbing & Heating | 0E8867395E | Apprenticeship Sponsor | Jun 30, 2016 |
| Amston, CT | Gerald Horan Plumbing & Heating Inc. | 67B93DF8DD | Apprenticeship Sponsor | Jun 30, 2007 |
| Somers, CT | Gerald Savage DBA Savage Plumbing | BFBD0B10CA | Apprenticeship Sponsor | Jun 30, 2023 |
| Greenwich, CT | Gerard Vernali Inc. | A3E371DDF2 | Apprenticeship Sponsor | Jun 30, 2027 |
| Ellington, CT | GERBER CONSTRUCTION INC | 6EA7089AC8 | Demolition Contractor + 2 more | Jun 30, 2027 |
| East Berlin, CT | Gerent Plumbing & Heating Inc. | 6D3FD96B02 | Apprenticeship Sponsor | Jun 30, 2009 |
| Kensington, CT | Gerson Electrical | 1BAD58A1E8 | Apprenticeship Sponsor | Jun 30, 2014 |
| Hamden, CT | GES Electrical | CA6184ACB6 | Apprenticeship Sponsor | Jun 30, 2018 |
| Durham, CT | Gesswin & Sons LLC | 0C1AB6E8C0 | Apprenticeship Sponsor | Jun 30, 2004 |
| Middletown, CT | Get Fresh Barber Shop, LLC | 71BC1D4822 | Apprenticeship Sponsor | Jun 30, 2020 |
| Norwalk, CT | GET WIRED ELECTRIC LLC | 1E80CFF486 | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Stratford, CT | GH Technical Services | FCAFF1E008 | Apprenticeship Sponsor | Jun 30, 2028 |
| Trumbull, CT | GIACOBBE CONSTRUCTION CO LLC | F1A58500D3 | New Home Construction Contractor + 2 more | Mar 31, 2027 |
| Trumbull, CT | Giangrasso Electric, Inc. | B2F116C3BF | Apprenticeship Sponsor | Jun 30, 2023 |
| Norwalk, CT | GIANNITTI ELECTRIC, LLC | 284037F665 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Newtown, CT | Gibbons Electric, LLC | 366707849F | Apprenticeship Sponsor | Jun 30, 2024 |
| Torrington, CT | Gibson Holdings, LLC d/b/a/ Giordano Signs | 54135B1A62 | Apprenticeship Sponsor | Jun 30, 2020 |
| Norwalk, CT | Giglio Electric LLC | A2D4DBF264 | Apprenticeship Sponsor | Jun 30, 2027 |
| West Simsbury, CT | Gilbert Plumbing, LLC | BB25E3E454 | Apprenticeship Sponsor | Jun 30, 2006 |
| Newington, CT | Gill Electrical Constructors | EEE28799AC | Apprenticeship Sponsor | Jun 30, 2020 |
| Sharon, CT | Gillette Electric LLC | DCF91DE39A | Apprenticeship Sponsor | Jun 30, 2027 |
| New Haven, CT | Gil’s Barbershop | 1F083113A1 | Apprenticeship Sponsor | Jun 30, 2027 |
| Newington, CT | Ginn Electric | 1B040FAAD9 | Apprenticeship Sponsor | Jun 30, 2007 |
| Branford, CT | GIORDANO CONSTRUCTION CO INC | F13AF9547E | Major Contractor + 1 more | Jun 30, 2027 |
| Derby, CT | Giordano's Heating & A/C, LLC | 2333B14F3D | Apprenticeship Sponsor | Jun 30, 2010 |
| Orange, CT | Giori Electric | 9933F44F9C | Apprenticeship Sponsor | Jun 30, 2020 |
| South Windsor, CT | Girouard Plumbing LLC | A647E5EF73 | Apprenticeship Sponsor | Jun 30, 2017 |
| South Windsor, CT | Giroux Electric | E4D5C747A3 | Apprenticeship Sponsor | Jun 30, 2023 |
| Middletown, CT | Giuffrida Electric Co., Inc. | B5E44C88F1 | Apprenticeship Sponsor | Jun 30, 2027 |
| Stamford, CT | Gjini Plumbing & Heating, LLC | 141E9591B2 | Apprenticeship Sponsor | Jun 30, 2020 |
| Newtown, CT | GK Electric | 7C42FA0664 | Apprenticeship Sponsor | Jun 30, 2018 |
| Sharon, CT | GK Electric, LLC | F567B98F5B | Apprenticeship Sponsor | Jun 30, 2027 |
| New Hartford, CT | Glacier Mechanical Services | 79957F76B8 | Apprenticeship Sponsor | Jun 30, 2027 |
| South Windsor, CT | Glanz Electric & HVAC Services LLC | A9D66B0F7D | Apprenticeship Sponsor | Jun 30, 2021 |
| South Windsor, CT | Glasco Home Services, LLC | B735B60492 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| New London, CT | Glass America | F2BEA7744F | Apprenticeship Sponsor | Jun 30, 2008 |
| Sandy Hook, CT | GLASS CONTRACTORS LLC | F9AD4F01BD | Major Contractor + 1 more | Jun 30, 2027 |
| Ridgefield, CT | GLASS GUYS LLC | 6527C57914 | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Glastonbury, CT | Glastonbury Furnace & Fireplace | 111EBEBE86 | Apprenticeship Sponsor | Jun 30, 2014 |
| Glastonbury, CT | Glastonbury Landscaping & Irrigation, Inc. | 3291DE00A9 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Glastonbury, CT | Glastonbury Mechanical Corporation dba Glastonbury Burner & Boiler | 438BCF8B74 | Apprenticeship Sponsor | Jun 30, 2022 |
| Glastonbury, CT | Glastonbury Water Systems | 6C953C363E | Apprenticeship Sponsor | Jun 30, 2027 |
| Woodbridge, CT | GLE, LLC. dba GLE Reconstruction | A82569EFE0 | Apprenticeship Sponsor | Jun 30, 2025 |
| Stamford, CT | Glenbrook Heating & Air Conditioning, Inc. | 5D72C23D11 | Apprenticeship Sponsor | Jun 30, 2009 |
| Greenwich, CT | Glenville Plumbing & Heating, LLC | 305769EDA2 | Apprenticeship Sponsor | — |
| Southington, CT | GLOBAL MECHANICAL, LLC | B4B38BF31C | Apprenticeship Sponsor | Jun 30, 2026 |
| Watertown, CT | GLOBAL STEERING SYSTEMS, LLC | 7CCB166CAA | Apprenticeship Sponsor | Jun 30, 2027 |
| Portland, CT | Global Tech Systems, LLC | F166F24F7A | Apprenticeship Sponsor | Jun 30, 2027 |
| North Branford, CT | Globe Electric, LLC | 7A6571B717 | Apprenticeship Sponsor | Jun 30, 2027 |
| Tolland, CT | GM Industries Incorporated | F5BCAEFDD3 | Apprenticeship Sponsor | Jun 30, 2015 |
| Torrington, CT | Godburn Plumbing & Heating, LLC | ABEA80243A | Apprenticeship Sponsor | Jun 30, 2026 |
| Norwalk, CT | Gold Coast Plumbing | 1636002121 | Apprenticeship Sponsor | Jun 30, 2027 |
| Greenwich, CT | Gold Star Electric Corporation | 7D15E8A1AA | Apprenticeship Sponsor | Jun 30, 2011 |
| Stamford, CT | Golden Coast Plumbing, LLC | 68C2310BB3 | Apprenticeship Sponsor | Jun 30, 2027 |
| Berlin, CT | Golden Electric & Communications, LLC | 8136D4B0D9 | Apprenticeship Sponsor | Jun 30, 2027 |
| Beacon Falls, CT | Goldenrod Corp. | 8B17E128E0 | Apprenticeship Sponsor | Jun 30, 2027 |
| Cromwell, CT | Golf Irrigation Services, Inc. | 7BF24ED966 | Apprenticeship Sponsor | Jun 30, 2026 |
| Newington, CT | GONZO Heating and Cooling LLC | 43CA64248D | Apprenticeship Sponsor | Jun 30, 2027 |
| Danbury, CT | Good Guys Barber & Company | 63BC950597 | Apprenticeship Sponsor | Jun 30, 2025 |
| Woodbury, CT | Good Hill Mechanical Services, Inc. | 50A63DEE58 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| West Springfield, MA | Goodless Electric Co., Inc. | 49851159BC | Apprenticeship Sponsor | Jun 30, 2026 |
| Hope Valley, RI | GORDON BUILDING & EXCAVATING INC | CF83E3F1B5 | Major Contractor + 1 more | Jun 30, 2027 |
| Westport, CT | Gordon Security Inc. | F87B5D3A66 | Apprenticeship Sponsor | Jun 30, 2009 |
| Goshen, CT | Goshen Oil Company, Inc. | 130A72F8C6 | Apprenticeship Sponsor | Jun 30, 2017 |
| Ellington, CT | Gottier Electric | 56E4685628 | Apprenticeship Sponsor | Jun 30, 2027 |
| Vernon, CT | Gottier Fuel Co. Inc. | 1447A9D561 | Apprenticeship Sponsor | Jun 30, 2024 |
| Winsted, CT | Goulet Glass, Inc. dba Sullivan Glass | 6E02E6C032 | Apprenticeship Sponsor | Jun 30, 2016 |
| Hamden, CT | GR Wade LLC | 4F735EDA70 | Apprenticeship Sponsor | Jun 30, 2027 |
| Berlin, CT | Grady Mechanical LLC | CBF2C1164F | Apprenticeship Sponsor | Jun 30, 2018 |
| Salem, CT | Graf Electric, LLC | A825ADC089 | Apprenticeship Sponsor | Jun 30, 2018 |
| Springfield, MA | Graham J. Boggis | B0618B297E | Apprenticeship Sponsor | Jun 30, 2010 |
| Terryville, CT | Graham Tool and Machine LLC | 7F8D6641C3 | Apprenticeship Sponsor | Jun 30, 2026 |
| Goshen, CT | Grahn Plumbing and Heating | A31C2D4361 | Apprenticeship Sponsor | Jun 30, 2024 |
| Norwalk, CT | Granata Electric Company | AC386500F2 | Apprenticeship Sponsor | Jun 30, 2012 |
| Granby, CT | Granby Electric, LLC | 2B251D8163 | Apprenticeship Sponsor | Jun 30, 2027 |
| North Haven, CT | Granite Communications | 520AA83151 | Apprenticeship Sponsor | Jun 30, 2026 |
| Granby, CT | Grass Helper Lawn Care Inc. | C80F6667CB | Apprenticeship Sponsor | Jun 30, 2027 |
| Stamford, CT | Great American Electric LLC | 2F8073FBC0 | Apprenticeship Sponsor | Jun 30, 2013 |
| Derby, CT | Greco & Haines, Inc. | EACD343079 | Apprenticeship Sponsor + 2 more | Jun 30, 2027 |
| East Windsor, CT | Green Earth Energy Photovoltaic Corporation | 1B13C18D58 | Apprenticeship Sponsor | Jun 30, 2019 |
| East Windsor, CT | Green Earth Roofing Solutions | B5FE2CBB58 | Apprenticeship Sponsor | Jun 30, 2026 |
| Lisbon, CT | Green Electric Enterprises, LLC | 60585C4755 | Apprenticeship Sponsor | Jun 30, 2015 |
| Windsor Locks, CT | Green Energy Solutions, Inc. | 298B8A72B7 | Apprenticeship Sponsor | Jun 30, 2025 |
| Stratford, CT | Green lawn Irrigation | 4C47C8DF1E | Apprenticeship Sponsor | Jun 30, 2026 |
| Durham, CT | GREEN POWER ENERGY, LLC | 8C4D963D26 | Apprenticeship Sponsor | Jun 30, 2027 |
| East Granby, CT | Green Turf Irrigation, Inc. | 886C7EB545 | Apprenticeship Sponsor | Jun 30, 2007 |
| Killingly, CT | Green Valley Electric, LLC | 57C18414BC | Apprenticeship Sponsor | Jun 30, 2025 |
| Norwich, CT | Green Valley Plumbing & Heating | 43C5F2B53E | Apprenticeship Sponsor | Jun 30, 2011 |
| Southington, CT | Green Way Inc. | BA18CBEC2C | Apprenticeship Sponsor | Jun 30, 2021 |
| Bethel, CT | Greenacres Company of Bethel, LLC | E0DFA7F084 | Apprenticeship Sponsor | Jun 30, 2006 |
| Oxford, CT | Greenleaf Energy Solutions, LLC | 24A985F449 | Apprenticeship Sponsor | Jun 30, 2020 |
| Norwalk, CT | Greenlife Lawn Sprinkler, LLC | AA80064061 | Apprenticeship Sponsor | Jun 30, 2018 |
| New Canaan, CT | Greens Ledge Electric, LLC | 0E417718CA | Apprenticeship Sponsor | Jun 30, 2027 |
| Groton, CT | GREENTEMP Mechanical Services LLC | B45D1D0ACE | Apprenticeship Sponsor | Jun 30, 2027 |
| Greenwich, CT | Greenwich Electric, Inc. | FA44C6A144 | Apprenticeship Sponsor | Jun 30, 2027 |
| Greenwich, CT | Greenwich Heating & Cooling, LLC. | 1FCFF14F24 | Apprenticeship Sponsor | Jun 30, 2027 |
| Leicester, MA | Greg Burtt Contracting Co., Inc. | 3A41575F78 | Apprenticeship Sponsor | Jun 30, 2027 |
| Stafford Springs, CT | Greg Lanz Plumbing & Heating | 0176FCCD59 | Apprenticeship Sponsor | Jun 30, 2025 |
| East Haddam, CT | Greg Schimetschek Electric | 68780EEDF5 | Apprenticeship Sponsor | Jun 30, 2012 |
| Old Lyme, CT | Gregg Landry Plumbing & Heating LLC | A90794E715 | Apprenticeship Sponsor | Jun 30, 2027 |
| Pomfret Center, CT | Gregory Electric LLC | 3B55A3DFB0 | Apprenticeship Sponsor | Jun 30, 2009 |
| Shelton, CT | Gregory Glover Plumbing & Heating LLC | 8B42F3915F | Apprenticeship Sponsor | Jun 30, 2008 |
| New London, CT | Greg’s Plumbing And Heating | 596255BF25 | Apprenticeship Sponsor | Jun 30, 2026 |
| Terryville, CT | Grela Well Drilling, Inc. | 744A4AEF01 | Apprenticeship Sponsor | Jun 30, 2027 |
| Colchester, CT | Grenier Electrical LLC | 783E402C2D | Apprenticeship Sponsor | Jun 30, 2027 |
| Darien, CT | Grid Tie Electric, Inc. | 779802BF3A | Apprenticeship Sponsor | — |
| Seymour, CT | Griffin Brothers Excavation | FFEA16AC62 | Demolition Contractor + 2 more | Sep 30, 2027 |
| Wolcott, CT | Griffin Electric LLC | E1B8F44A1A | Apprenticeship Sponsor | Jun 30, 2024 |
| Southington, CT | Griffin Electrical Contractors, Inc. | CBA0A2FEA7 | Apprenticeship Sponsor | Jun 30, 2027 |
| Derby, CT | GRIFFIN HOSPITAL | 85AB597E38 | Apprenticeship Sponsor | Jun 30, 2014 |
| Southington, CT | Griffin Mechanical, LLC | 682DE53969 | Apprenticeship Sponsor | Jun 30, 2007 |
| North Haven, CT | Griffin Plumbing Services LLC | C96B5F635D | Apprenticeship Sponsor | Jun 30, 2027 |
| Branford, CT | Grillo Electrical Services, Inc. | CCFBE21A7B | Apprenticeship Sponsor | Jun 30, 2027 |
| Shelton, CT | Grist Mill Contracting Corp. | C284179D1A | Apprenticeship Sponsor | Jun 30, 2008 |
| Westbrook, CT | Griswold Plumbing Services, LLC | A6042AA50B | Apprenticeship Sponsor | Jun 30, 2026 |
| Southington, CT | Groman Electric, LLC | 23CB47E55C | Apprenticeship Sponsor | Jun 30, 2018 |
| Griswold, CT | Gromko Plumbing & Heating, LLC | 23D3E88873 | Apprenticeship Sponsor | Jun 30, 2006 |
| Torrington, CT | Groom Barbershop | 62182B3B7F | Apprenticeship Sponsor | Jun 30, 2022 |
| Groton, CT | Groton Utilities | 24E611732C | Apprenticeship Sponsor | — |
| Torrington, CT | GROUNDED I G LLC | E34C1DD72E | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Granby, CT | Growing Season Irrigation, LLC | 38604B26D0 | Apprenticeship Sponsor | Jun 30, 2006 |
| Norwalk, CT | Grumman Electric | 54008BB78F | Apprenticeship Sponsor | Jun 30, 2014 |
| North Stonington, CT | GS McGowan Plumbing, LLC | B7FAA18D71 | Apprenticeship Sponsor | Jun 30, 2023 |
| Norwalk, CT | GT Electric, LLC | 1578148F54 | Apprenticeship Sponsor | Jun 30, 2027 |
| Wallingford, CT | GT Integrators, LLC | F399AE0AFC | Apprenticeship Sponsor | Jun 30, 2013 |
| Norwalk, CT | GT Plumbing, Heating & Cooling, LLC | B1A77CF4C3 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Broad Brook, CT | Guarantee Mechanical Services, Inc. | 0F2C8E70DE | Apprenticeship Sponsor | Jun 30, 2014 |
| Milford, CT | Guardian Electrical Services LLC | AF47853734 | Apprenticeship Sponsor | Jun 30, 2014 |
| New York, NY | GUARDIAN SERVICE INDUSTRIES | 8AD327C14C | Apprenticeship Sponsor | Jun 30, 2029 |
| Oxford, CT | GUERRERA CONSTRUCTION CO INC | CC75A523C4 | Major Contractor + 4 more | Jun 30, 2027 |
| Bristol, CT | Guglietta Plumbing and Heating, LLC | FC45314676 | Apprenticeship Sponsor | Jun 30, 2027 |
| East Hartford, CT | Guiel Auto Glass | 3EDBA66E14 | Apprenticeship Sponsor | Jun 30, 2009 |
| Guilford, CT | Guilford Air Systems, LLC | 4BB7C2BA2E | Apprenticeship Sponsor | Jun 30, 2011 |
| Westport, CT | Gunzy Electric Inc. | 176AFBBCE5 | Apprenticeship Sponsor | Jun 30, 2027 |
| Norwalk, CT | Gurnari Electric | CED094EB11 | Apprenticeship Sponsor | Jun 30, 2013 |
| New Britain, CT | Gutowski Central Heating | 5F403E6BB3 | Apprenticeship Sponsor | Jun 30, 2012 |
| Watertown, CT | GUY'S HEATING & COOLING | F4B2521BA7 | Apprenticeship Sponsor | Jun 30, 2026 |
| Niantic, CT | GUY'S INC | DCE49DBA40 | Home Heating Fuel Dealer + 1 more | Sep 30, 2027 |
| Salem, CT | Guzallis Electric | EDC94D87E3 | Apprenticeship Sponsor | Jun 30, 2027 |
| Stamford, CT | GVR Mechanical Services | CFCFF69E0A | Apprenticeship Sponsor | Jun 30, 2024 |
| East Hartford, CT | H & C Energy Systems, Inc. | 7387A81048 | Apprenticeship Sponsor | Jun 30, 2009 |
| Hartford, CT | H & E ELECTRICAL SERVICE | 402366059C | Apprenticeship Sponsor | Jun 30, 2027 |
| Farmington, CT | H & H Refrigeration Inc. | D0F1F89080 | Apprenticeship Sponsor | Jun 30, 2024 |
| Southington, CT | H & M Electric, LLC | 76753E7EB5 | Apprenticeship Sponsor | Jun 30, 2026 |
| New Milford, CT | H & P Electric Company, Inc. | 6B84CD4A1F | Apprenticeship Sponsor | Jun 30, 2010 |
| West Hartford, CT | H & R Electric and General Contractor LLC | 2D71F6B6D3 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Waterbury, CT | H & T Waterbury, LLC | 54C5603F1A | Apprenticeship Sponsor | Jun 30, 2027 |
| Wethersfield, CT | H C ROHDE OIL COMPANY INC | F4B6BB35CE | Motor Fuel Quality Registration + 3 more | Oct 31, 2027 |
| Fairfield, CT | H&M Mechanical LLC | 23C1F2CBC8 | Apprenticeship Sponsor | Jun 30, 2028 |
| Winsted, CT | H-O Products Corp. | E22C8ABCA4 | Apprenticeship Sponsor | — |
| Monroe, CT | H. G. Heath Company | 5757CEE753 | Apprenticeship Sponsor | Jun 30, 2019 |
| Stratford, CT | H. Hulse, Inc. | 7A821E7A7B | Apprenticeship Sponsor | Jun 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.