Apprenticeship Sponsor — page 14 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 |
|---|---|---|---|---|
| East Haven, CT | NPower Construction & Electrical, LLC | D3A0586DE3 | Apprenticeship Sponsor | Jun 30, 2027 |
| Wolcott, CT | NuCap US, Inc. | 87B0A8CF0B | Apprenticeship Sponsor | Jun 30, 2024 |
| Wallingford, CT | NUCOR STEEL CONNECTICUT INC | 275952E905 | Operator of Weighing & Measuring Devices + 1 more | Jul 31, 2027 |
| Windsor, CT | NUNES QUALITY PLUMBING & HEATING | 15D494453B | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Stratford, CT | NUOVO PASTA PRODUCTIONS LTD | EC35C5D3CD | Food Manufacturing Establishment + 3 more | Jun 30, 2027 |
| Norwich, CT | NUTMEG COMPANIES INC (THE) | 596C65AF6F | Major Contractor + 1 more | Jun 30, 2027 |
| Naugatuck, CT | Nutmeg Electric Inc. | A38B90D148 | Apprenticeship Sponsor | Jun 30, 2004 |
| Lebanon, CT | Nutmeg Electrical Services LLC | DC62FB5508 | Apprenticeship Sponsor | Jun 30, 2027 |
| Manchester, CT | Nutmeg Gravel & Excavating, Inc. | 7300030B0A | Apprenticeship Sponsor | Jun 30, 2018 |
| Cheshire, CT | Nutmeg Heating & Cooling, LLC | E9DF19BFC1 | Apprenticeship Sponsor | Jun 30, 2005 |
| Manchester, CT | NUTMEG MECHANICAL SERVICES, INC. | 5F991ABC25 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| East Hampton, CT | Nutmeg Plumbing & Heating | B93F1C8863 | Apprenticeship Sponsor | Jun 30, 2027 |
| Bridgeport, CT | Nuzzo Electrical Contractors, Inc. | 7D9286C21B | Apprenticeship Sponsor | Jun 30, 2027 |
| Danbury, CT | NY CONN CORPORATION (THE) | 5257BAE658 | Major Contractor + 1 more | Jun 30, 2027 |
| Bridgeport, CT | O & M Electric Inc. | 2A1B835769 | Apprenticeship Sponsor | Jun 30, 2021 |
| Torrington, CT | O&G INDUSTRIES, INC | AC2763DC3F | Demolition Contractor + 3 more | Sep 30, 2027 |
| Groton, CT | O'Brien Electric LLC | B8AB3E93C9 | Apprenticeship Sponsor | Jun 30, 2013 |
| Windham, Connecticut, CT | O'Connell's Electrical Contractors | A5FB87D9D0 | Apprenticeship Sponsor | Jun 30, 2026 |
| Marlborough, CT | O'Connor Electric | A761884AE1 | Apprenticeship Sponsor | Jun 30, 2004 |
| Milford, CT | O'Connor Electric LLC | 6DFF2CBD55 | Apprenticeship Sponsor | Jun 30, 2028 |
| Bantam, CT | O'Dell's Plumbing & Heating | 1CDD5EF6E2 | Apprenticeship Sponsor | Jun 30, 2004 |
| Killingworth, CT | O'DONNELL PLUMBING & HEATING, LLC | 33381D3D9C | Apprenticeship Sponsor | Jun 30, 2009 |
| Stafford Springs, CT | O'Konis Electric, LLC | E2D365B02A | Apprenticeship Sponsor | Jun 30, 2018 |
| Unionville, CT | O'Leary Plumbing & Heating, LLC | 3ED548C89F | Apprenticeship Sponsor | Jun 30, 2007 |
| Norwich, CT | O'NEIL MECHANICAL CONTRACTOR INC. | 754648FD24 | Apprenticeship Sponsor | Jun 30, 2012 |
| Stratford, CT | O'Reilly Electric, LLC | 556D9CAE62 | Apprenticeship Sponsor | Jun 30, 2027 |
| North Haven, CT | O.F. MOSSBERG & SONS, INC. | 3E1510B1BA | Apprenticeship Sponsor | Jun 30, 2022 |
| Stoughton, MA | O.H. Burg Corporation | 2346ADE87B | Apprenticeship Sponsor | Jun 30, 2020 |
| Cheshire, CT | O.J. Mann Electric Services, Inc. | DACF4FB53C | Apprenticeship Sponsor | Jun 30, 2027 |
| Bristol, CT | Oakbrook Electric, LLC | D4DFBE76AD | Apprenticeship Sponsor | Jun 30, 2027 |
| Bristol, CT | Oakland, LLC | 543831C1C6 | Apprenticeship Sponsor | Jun 30, 2015 |
| Milford, CT | Oatley Mechanical Services, Inc. | D4D4069C88 | Apprenticeship Sponsor | Jun 30, 2018 |
| Trumbull, CT | OCE North America | EEB6D4B52D | Apprenticeship Sponsor | Jun 30, 2009 |
| Bradford, RI | Oceanside Plumbing & Heating/PL & PF LU #51 | BAC6C2CBF9 | Apprenticeship Sponsor | Jun 30, 2006 |
| Norwalk, CT | ODYSSEY EARLY LEARNING CENTER | 5AAA273E93 | Child Care Center + 1 more | Mar 31, 2028 |
| Norwalk, CT | ODYSSEY LEARNING | 24A8355B21 | Child Care Center + 1 more | Jul 31, 2029 |
| Portland, CT | Off Grid Electrical Services, LLC | 5DA5D731E2 | Apprenticeship Sponsor | Jun 30, 2020 |
| Danbury, CT | Ogden Electrical Service Inc. | E8C459DBE2 | Apprenticeship Sponsor | Jun 30, 2027 |
| Cheshire, CT | OGS Technologies LLC | 3372594174 | Apprenticeship Sponsor | Jun 30, 2027 |
| New Haven, CT | OHS Construction, LLC | 45A5574F65 | Apprenticeship Sponsor | Jun 30, 2022 |
| Rocky Hill, CT | Old Fashion Construction Services LLC | 52524C1695 | Apprenticeship Sponsor | Jun 30, 2008 |
| Old Lyme, CT | Old Lyme Oil | CC72D8E181 | Apprenticeship Sponsor | Jun 30, 2006 |
| Waterford, CT | Old Saybrook Plumbing LLC | 39865F655A | Apprenticeship Sponsor | Jun 30, 2027 |
| Meriden, CT | Oldani Brothers, LLC | C11BA71005 | Apprenticeship Sponsor | Jun 30, 2023 |
| New Britain, CT | Oliva's Electric, LLC | DAA77ACD09 | Apprenticeship Sponsor | Jun 30, 2024 |
| Waterford, CT | Oliver Electric LLC | 0BB91384F5 | Apprenticeship Sponsor | Jun 30, 2027 |
| Hartford, CT | Olympio Pina, Inc. | 3A394B704F | Apprenticeship Sponsor | Jun 30, 2009 |
| New London, CT | Omega Barbershop and Salon | 44B535FA2F | Apprenticeship Sponsor | Jun 30, 2023 |
| Brookfield, CT | Omega Electric, L.L.C. | A0A9392EEE | Apprenticeship Sponsor | Jun 30, 2006 |
| Waterbury, CT | Omega Electric, LLC | 43148E3097 | Apprenticeship Sponsor | Jun 30, 2014 |
| Norwalk, CT | Omega Plumbing & Heating, LLC | 9048514C06 | Apprenticeship Sponsor | Jun 30, 2027 |
| North Haven, CT | Omni Communications, Inc. | 5550E3F7F7 | Apprenticeship Sponsor | Jun 30, 2009 |
| West Haven, CT | Omni Data, LLC | EE86F87C81 | Apprenticeship Sponsor | Jun 30, 2026 |
| Fairfield, CT | OMNI Electric, LLC | 11010D8E4D | Apprenticeship Sponsor | Jun 30, 2023 |
| South Windsor, CT | Omni Mechanical Services, LLC | 9421F2A883 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Harwinton, CT | On The Grid Electric, LLC | F1ECA738FE | Apprenticeship Sponsor | Jun 30, 2023 |
| Bristol, CT | ON-TIME PLUMBNG AND HEATIING, LLC | A34BFAF673 | Apprenticeship Sponsor | Jun 30, 2027 |
| East Hartford, CT | One Mechanical Group | 6ECE0FAFCC | Apprenticeship Sponsor | Jun 30, 2021 |
| Stratford, CT | One Source Electric LLC | 17434B5894 | Apprenticeship Sponsor | Jun 30, 2027 |
| East Haddam, CT | One-Way Plumbing & Heating, Inc. | BB88D8FB51 | Apprenticeship Sponsor | Jun 30, 2017 |
| Avon, CT | ONION ELECTRIC | 5DF2BE6AD7 | Apprenticeship Sponsor | Jun 30, 2027 |
| South Windsor, CT | ONLEHANE, LLC | 4C1D9F8C8B | Apprenticeship Sponsor | Jun 30, 2026 |
| Black Or African American, CT | Only 1 Touch Beauty Experts | FAAABA11BA | Apprenticeship Sponsor | Jun 30, 2026 |
| Milford, CT | ONOFREO HOME COMFORT SYSTEMS, LLC | 422D202389 | Apprenticeship Sponsor | Jun 30, 2027 |
| Madison, CT | Onshore Electric, LLC | 138BDAF38D | Apprenticeship Sponsor | Jun 30, 2010 |
| Wallingford, CT | Onsite Electric, LLC | 6E02F87DE3 | Apprenticeship Sponsor | Jun 30, 2027 |
| Milford, CT | ONZE SOUTHERN CT PLUMBING & HEATING LLC | 4B5B8CAA6A | Apprenticeship Sponsor | Jun 30, 2027 |
| Meriden, CT | Operating Engineers of Conn JATC 478 | D64014855C | Apprenticeship Sponsor | Jun 30, 2027 |
| New Haven, CT | Operations Management International, Inc. CH2M HILL/OMI | 497F9E29CF | Apprenticeship Sponsor | Jun 30, 2008 |
| Portland, CT | Opticom, Inc. | D8B4DBE061 | Apprenticeship Sponsor | Jun 30, 2027 |
| Meriden, CT | OPTIMUM ENERGY, LLC | 0584505772 | Apprenticeship Sponsor | Jun 30, 2024 |
| Thomaston, CT | Optimum Security Intelligence LLC dba OSI Protective Service LLC | E8B9712384 | Apprenticeship Sponsor | Jun 30, 2008 |
| Bridgeport, CT | OPTIMUS HEALTH CARE INC OPTIMUS HEALTH CARE, INC. | DE67A08674 | Substance Abuse + 2 more | Mar 31, 2028 |
| Milford, CT | ORANGE RESEARCH, INC | C88B453989 | Apprenticeship Sponsor | Jun 30, 2027 |
| South Windsor, CT | ORSINI ELECTRIC, LLC | 0460D91069 | Apprenticeship Sponsor | Jun 30, 2009 |
| Watertown, CT | Orsini Electrical Services, Inc. | CA5279D4E3 | Apprenticeship Sponsor | Jun 30, 2009 |
| Danbury, CT | Ortiz Electric, LLC | 07A1CB246A | Apprenticeship Sponsor | Jun 30, 2026 |
| Stratford, CT | OSA Heating & Cooling, LLC | F9ED7691E6 | Apprenticeship Sponsor | Jun 30, 2027 |
| Granby, CT | OSI Protective Services, LLC | E997AA3E92 | Apprenticeship Sponsor | Jun 30, 2020 |
| Watertown, CT | Osram Sylvania Inc. | 0762BAC177 | Apprenticeship Sponsor | Jun 30, 2004 |
| Wethersfield, CT | Otis Mechanical, LLC | B3C4F77C58 | Apprenticeship Sponsor | Jun 30, 2027 |
| Danbury, CT | Otto Davis Plumbing & Heating LLC | 1E1A801F53 | Apprenticeship Sponsor | Jun 30, 2011 |
| Milford, CT | Our Plumber LLC | 56B90ADB86 | Apprenticeship Sponsor | Jun 30, 2018 |
| New Haven, CT | Outfront Media, LLC | 40E9EC03A4 | Apprenticeship Sponsor | Jun 30, 2022 |
| Waterbury, CT | Outokumpu Advanced Superconductor | EB6CE284E3 | Apprenticeship Sponsor | Jun 30, 2004 |
| New Britain, CT | Owl Oil Inc. | E1DB696C7D | Apprenticeship Sponsor | Jun 30, 2005 |
| Hartford, CT | Owner Aide, Inc. dba My Home Pro Network | 72D07F3798 | Apprenticeship Sponsor | Jun 30, 2017 |
| Watertown, CT | Ozzi II Inc. dba OC Eyelet | DF7C72E06F | Apprenticeship Sponsor | Jun 30, 2006 |
| Colchester, CT | P & D MECHANICAL INC | A8FAE92694 | Major Contractor + 1 more | Jun 30, 2027 |
| Manchester, CT | P & G Oil Burner Service | 0A4A9C5A99 | Apprenticeship Sponsor | Jun 30, 2008 |
| Hartford, CT | P & L Electric, LLC | 84FE2778E9 | Apprenticeship Sponsor | Jun 30, 2022 |
| Meriden, CT | P & L Plumbing, LLC | E2D12FE978 | Apprenticeship Sponsor | Jun 30, 2027 |
| Trumbull, CT | P & M Associates | FA9BAF9191 | Apprenticeship Sponsor | Jun 30, 2010 |
| Marlborough, CT | P & M Electric, LLC | DD71A04719 | Apprenticeship Sponsor | Jun 30, 2027 |
| Stamford, CT | P & S Holdings, LLC | C8041D89DD | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Washington, CT | P and Q Electric | 2109CAECE0 | Apprenticeship Sponsor | Jun 30, 2025 |
| Stamford, CT | P&G Beauty | 92983439E1 | Apprenticeship Sponsor | Jun 30, 2010 |
| Naugatuck, CT | P.B. Electric | B0BC125E32 | Apprenticeship Sponsor | Jun 30, 2011 |
| Seymour, CT | P.C.S. Plumbing & Heating, LLC | D9F4C364D4 | Apprenticeship Sponsor | Jun 30, 2028 |
| Branford, CT | P.F. Holland | 8416326B7D | Apprenticeship Sponsor | Jun 30, 2013 |
| North Branford, CT | P.F. Mac Plumbing LLC | E7E8D36BFE | Apprenticeship Sponsor | Jun 30, 2006 |
| Meriden, CT | P.F. Mik Construction Company, LLC | 3C1840BCF5 | Apprenticeship Sponsor | Jun 30, 2009 |
| Windsor Locks, CT | P.J. Lodola & Sons, Inc. | 1B4959C94A | Apprenticeship Sponsor | Jun 30, 2027 |
| Guilford, CT | P.L. Canestri Plumbing & Heating LLC | 85FF947178 | Apprenticeship Sponsor | Jun 30, 2027 |
| Bristol, CT | P.M. Mechanical Systems, Inc. | 1478456DDE | Apprenticeship Sponsor | Jun 30, 2005 |
| Rocky Hill, CT | P/M Air Systems LLC | 5D03F4CB1A | Apprenticeship Sponsor | Jun 30, 2004 |
| Pomfret Center, CT | P/S Irrigation, LLC | 58251A084D | Apprenticeship Sponsor | Jun 30, 2024 |
| Bristol, CT | Pa-Ted Spring Company, LLC | 2A6D632680 | Apprenticeship Sponsor | Jun 30, 2020 |
| Milford, CT | Pace Electric Service, LLC | F5F5A3DFFC | Apprenticeship Sponsor | Jun 30, 2024 |
| Stratford, CT | Pack-Timco, Inc. | 972009E0B1 | Apprenticeship Sponsor | Jun 30, 2027 |
| Prospect, CT | Packard Inc. | EAD18D00C0 | Apprenticeship Sponsor | Jun 30, 2021 |
| Windsor Locks, CT | Paganelli Construction Corp. | 9181DE322C | Apprenticeship Sponsor | Jun 30, 2023 |
| Bridgeport, CT | Page Services LLC | DAF474F9D0 | Apprenticeship Sponsor | Jun 30, 2016 |
| Windsor Locks, CT | Palazzo Mechanical | 715A213329 | Apprenticeship Sponsor | — |
| Litchfield, CT | Palker Excavating | 231DD1C84D | Apprenticeship Sponsor | Jun 30, 2016 |
| Waterbury, CT | Palladin Precision Products, Inc. | 05BC897B48 | Apprenticeship Sponsor | Jun 30, 2027 |
| Lebanon, CT | Pallas Electric, LLC | 18411C9D4C | Apprenticeship Sponsor | Jun 30, 2027 |
| Stamford, CT | Palmer & Schiano, LLC | B609AB7332 | Apprenticeship Sponsor | Jun 30, 2007 |
| Derby, CT | Palmieri's Quality Air Systems | 4FB4792389 | Apprenticeship Sponsor | Jun 30, 2008 |
| Lebanon, CT | Palomino Mechanical Services | D22D55392C | Apprenticeship Sponsor | Jun 30, 2010 |
| Enfield, CT | Panella's Plumbing & Heating, Inc. | 31CAC9118F | Apprenticeship Sponsor | Jun 30, 2026 |
| Stamford, CT | Paolino & Associates, LLC | 992F9F17F3 | Apprenticeship Sponsor | Jun 30, 2010 |
| North Haven, CT | Papa Electric, LLC | 6471E32650 | Apprenticeship Sponsor | Jun 30, 2011 |
| Meriden, CT | Papotto Plumbing & Heating LLC | E016400BCB | Apprenticeship Sponsor | Jun 30, 2019 |
| Trumbull, CT | Pappas Electric LLC | 5184046D99 | Apprenticeship Sponsor | Jun 30, 2017 |
| Oxford, CT | Papst Plumbing & Heating LLC | 74CC8958EC | Apprenticeship Sponsor | Jun 30, 2027 |
| Pomfret Center, CT | Paquette Electric Company Inc. | D24F27B85D | Apprenticeship Sponsor | Jun 30, 2025 |
| Norwalk, CT | Paquin Electrical Contracting | 86C0FECF53 | Apprenticeship Sponsor | Jun 30, 2008 |
| West Haven, CT | Paraco HVAC | 5965CE6B6F | Apprenticeship Sponsor | Jun 30, 2027 |
| Manchester, CT | Paradigm Manchester, Inc. dba Paradigm Precision | 27B654948D | Apprenticeship Sponsor | Jun 30, 2021 |
| Bristol, CT | Paradis Electric, Inc. | 7856CA7CF0 | Apprenticeship Sponsor | Jun 30, 2026 |
| Oxford, CT | Paradise Electric, LLC | 458C8AFABC | Apprenticeship Sponsor | Jun 30, 2027 |
| New Milford, CT | Paragon Heating and Cooling LLC | 9A9BE64B8A | Apprenticeship Sponsor | Jun 30, 2026 |
| Bridgeport, CT | Paragon Medical | EA36FBCB5F | Apprenticeship Sponsor | Jun 30, 2027 |
| Newington, CT | PARAMOUNT CONSTRUCTION LLC | 5739A547FF | Major Contractor + 1 more | Jun 30, 2027 |
| Manchester, CT | Paramount Machine Company | 404DD7D4A4 | Apprenticeship Sponsor | — |
| Milford, CT | Park City Boilers Plumbing & Heating, LLC | 783A6B8AFA | Apprenticeship Sponsor | Jun 30, 2027 |
| Bridgeport, CT | Park City Plumbing, Inc. | 9273146074 | Apprenticeship Sponsor | Jun 30, 2013 |
| New Haven, CT | Parker Electric, LLC | 143994A8E8 | Apprenticeship Sponsor | Jun 30, 2026 |
| North Haven, CT | Parker Hannifin Corp. | 804CADCD91 | Apprenticeship Sponsor | Jun 30, 2027 |
| Old Saybrook, CT | Parker Home Services, LLC | 2EAF0FCB53 | Apprenticeship Sponsor | Jun 30, 2026 |
| Brookfield, CT | Parker Refrigeration, Inc. | 896A2ED887 | Apprenticeship Sponsor | Jun 30, 2019 |
| Watertown, CT | Parkhurst Electric, LLC | B03FF3D3D1 | Apprenticeship Sponsor | Jun 30, 2024 |
| Fairfield, CT | Parkway Oil Company, Inc. | 6DED38788E | Apprenticeship Sponsor | Jun 30, 2008 |
| Columbia, CT | Parla & Sons LLC | 0F068DE138 | Apprenticeship Sponsor | Jun 30, 2027 |
| Durham, CT | Parmelee Water Systems | 41798CCB5B | Apprenticeship Sponsor | Jun 30, 2008 |
| New Britain, CT | Parsons Plumbing & Heating Co. | 7BC4B37AE8 | Apprenticeship Sponsor | Jun 30, 2010 |
| Bristol, CT | Partners Communications, Inc. | 948D6BEE27 | Apprenticeship Sponsor | Jun 30, 2008 |
| Sandy Hook,ct, CT | Partyka Electric, LLC | BAE616101E | Apprenticeship Sponsor | Jun 30, 2027 |
| Cheshire, CT | Pasco Plumbing & Heating, Inc. | 9B6FA7F31A | Apprenticeship Sponsor | Jun 30, 2009 |
| Old Lyme, CT | PASQUALINI CONSTRUCTION INC | B3B7BE4C34 | Major Contractor + 2 more | Jun 30, 2027 |
| Madison, CT | PASQUARIELLO ELECTRIC CORP PASQUARIELLO CORP | 6DBBA92263 | Major Contractor + 1 more | Jun 30, 2027 |
| New Haven, CT | Pasquariello Mechanical Corporation | 2415B2F7D6 | Apprenticeship Sponsor | Jun 30, 2009 |
| Stratford, CT | Passeri Electric Co., Inc. | 258FD50565 | Apprenticeship Sponsor | Jun 30, 2011 |
| Naugatuck, CT | Pastanch, LLC | EBFB25414B | Apprenticeship Sponsor | Jun 30, 2027 |
| Shelton, CT | Pat Mahoney Electric LLC | 4DEBE7D9A4 | Apprenticeship Sponsor | Jun 30, 2019 |
| Willington, CT | Patnode Electric | 183DC68452 | Apprenticeship Sponsor | Jun 30, 2027 |
| Sandy Hook, CT | PATRIC'S CARPENTRY LLC | 1922069232 | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Bethlehem, CT | Patriot Electric, LLC | 5F65FBC116 | Apprenticeship Sponsor | Jun 30, 2027 |
| Simsbury, CT | Patriot Electrical Services, LLC | 59EF29A208 | Apprenticeship Sponsor | Jun 30, 2006 |
| Bristol, CT | Patriot Manufacturing, LLC | 84BE2CEDA6 | Apprenticeship Sponsor | Jun 30, 2019 |
| Torrington, CT | PATTERSON OIL CO PATTERSON OIL COMPANY | BFD059081B | Home Heating Fuel Dealer + 4 more | Sep 30, 2027 |
| North Stonington, CT | Paul Bliven Plumbing | CDFC96A717 | Apprenticeship Sponsor | Jun 30, 2008 |
| Old Saybrook, CT | PAUL BURDICK OIL CO | 69B4E11BED | Home Heating Fuel Dealer + 2 more | Sep 30, 2027 |
| North Haven, CT | Paul C. Montano, Inc. | AE026CBDCE | Apprenticeship Sponsor | Jun 30, 2013 |
| Glastonbury, CT | Paul Cicchetti Electrical Contractors, LLC | FFE2BA7B1A | Apprenticeship Sponsor | Jun 30, 2027 |
| Broad Brook, CT | Paul Guarino's Plumbing & Heating Co. | F17CF3529E | Apprenticeship Sponsor | Jun 30, 2006 |
| Pomfret Center, CT | Paul Johnson Electric Inc. | C1FDA6DE91 | Apprenticeship Sponsor | Jun 30, 2025 |
| Middlebury, CT | PAUL PERROTTI ELECTRIC, LLC | 67DD52D7EC | Apprenticeship Sponsor | Jun 30, 2018 |
| Seymour, CT | Paul The Plumber, Inc. | A5C485B7E5 | Apprenticeship Sponsor | Jun 30, 2026 |
| Guilford, CT | Paul's Electrical Contracting, LLC | 5AA6984B54 | Apprenticeship Sponsor | Jun 30, 2008 |
| Tarifville, CT | Paul's Plumbing Service, LLC | 00C69A296D | Apprenticeship Sponsor | Jun 30, 2012 |
| Baltic, CT | Pautipaug Electric LLC | FEBF8D59C2 | Apprenticeship Sponsor | Jun 30, 2027 |
| Harwinton, CT | Pav's Mechanical | 933FE17C5C | Apprenticeship Sponsor | Jun 30, 2004 |
| Hamden, CT | Pax Electric | 6DA95EE1B7 | Apprenticeship Sponsor | Jun 30, 2027 |
| Hartford, CT | PAYLESS AUTO GLASS | 7AAE76E2D0 | Apprenticeship Sponsor | Jun 30, 2027 |
| Stamford, CT | PCI Creative Group, LLC | C93E15F8C5 | Apprenticeship Sponsor | Jun 30, 2018 |
| Newington, CT | PCX Aerostructures, LLC | D243825649 | Apprenticeship Sponsor | Jun 30, 2022 |
| Manchester, CT | PCX Aerosystems Manchester | F94E680C79 | Apprenticeship Sponsor | Jun 30, 2025 |
| Norwalk, CT | PDC International Corp. | 7BF2FB4F83 | Apprenticeship Sponsor | Jun 30, 2022 |
| Fairfield, CT | PDQ Plumbing & Heating, LLC | CA469D8495 | Apprenticeship Sponsor | Jun 30, 2010 |
| Rocky Hill, CT | PDQ, Inc. | A252E4DC66 | Apprenticeship Sponsor | Jun 30, 2016 |
| Wolcott, CT | PDR Plumbing & Heating, LLC | 7E78572F21 | Apprenticeship Sponsor | Jun 30, 2027 |
| Cheshire, CT | PE Electric LLC | 3E5F15F085 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Vernon, CT | Peachywah Heating and Cooling LLC | FC43745E67 | Apprenticeship Sponsor | Jun 30, 2022 |
| Shelton, CT | Pearmain Communications | A10514B278 | Apprenticeship Sponsor | Jun 30, 2027 |
| Norwalk, CT | Pearson Electric, Inc. | 8DE18DE236 | Apprenticeship Sponsor | Jun 30, 2012 |
| East Hartford, CT | PEC Electrical | 18169D67DF | Apprenticeship Sponsor | Jun 30, 2026 |
| Bethany, CT | Peck Electric LLC | 0FAF9ED164 | Apprenticeship Sponsor | Jun 30, 2006 |
| Monroe, CT | Peck Electrical Contracting Services | C2A305CFBF | Apprenticeship Sponsor | Jun 30, 2027 |
| Stratford, CT | Peck Electrical Contracting Services, LLC | 996CBE7203 | Apprenticeship Sponsor | Jun 30, 2017 |
| Plainville, CT | Peck Spring Corp. | 7ED98A1FDD | Apprenticeship Sponsor | Jun 30, 2004 |
| Stamford, CT | Peerless Electric, Inc. | 4A088D658F | Apprenticeship Sponsor | Jun 30, 2014 |
| Stamford, CT | Pelham Heating & Air Conditioning, LLC | 3B7FBBD56D | Apprenticeship Sponsor | Jun 30, 2022 |
| Middlebury, CT | Pell Electric, LLC | CAA4E01B63 | Apprenticeship Sponsor | Jun 30, 2023 |
| Coventry, CT | Pelletier Builders Inc. | 76273A9A9D | Apprenticeship Sponsor | Jun 30, 2017 |
| Cromwell, CT | Pelletier Heating & Air Conditioning LLC | 83070C6BFF | Apprenticeship Sponsor | Jun 30, 2006 |
| Ridgefield, CT | Pelo By Edgardo | 327D2FB667 | Apprenticeship Sponsor | Jun 30, 2027 |
| Clinton, CT | PEMBER PLUMBING AND HEATING, LLC | 984819E974 | Apprenticeship Sponsor | Jun 30, 2027 |
| Westbrook, CT | PENNYWISE OIL COMPANY INC | 6942733FF1 | Retail Gasoline Dealer + 4 more | Oct 31, 2027 |
| Meriden, CT | Pentalow Electric and Home Services, LLC | 93D7CE54E7 | Apprenticeship Sponsor | Jun 30, 2026 |
| Windsor, CT | Pepsi Company | CD9F3C1EC4 | Apprenticeship Sponsor | Jun 30, 2023 |
| Cheshire, CT | Peragallo Construction | 078248D077 | Apprenticeship Sponsor + 1 more | Jun 30, 2027 |
| Thomaston, CT | PERFECT TIMING HEATING & COOLING | 555F4867C3 | Apprenticeship Sponsor | Jun 30, 2027 |
| Plainville, CT | Perfectemp, Inc. | AB71B0039A | Apprenticeship Sponsor | Jun 30, 2027 |
| Colchester, CT | PERFECTLY PLUMB LLC | 22F44A1B18 | Apprenticeship Sponsor | Jun 30, 2027 |
| Milford, CT | Performance AV & Security | 264028C5EA | Apprenticeship Sponsor | Jun 30, 2020 |
| Torrington, CT | PERFORMANCE PLUMBING & HEATING | E11CF139DA | Apprenticeship Sponsor | Jun 30, 2026 |
| Old Saybrook, CT | Perri Mechanical Contractors, LLC | D1FD58E4F1 | Apprenticeship Sponsor | Jun 30, 2012 |
| Seymour, CT | Perry Plumbing Services, LLC | 2BDFB07AF2 | Apprenticeship Sponsor | Jun 30, 2027 |
| New Hartford, CT | PERRY TECHNOLOGY CORPORATION | 71A572D91D | Apprenticeship Sponsor | Jun 30, 2027 |
| Litchfield, CT | Persechino Electrical Contractors, LLC | 4C3D51FE46 | Apprenticeship Sponsor | Jun 30, 2006 |
| New Britain, CT | PERSONAL ENERGY CO LLC | 88AC619628 | Home Heating Fuel Dealer + 2 more | Sep 30, 2027 |
| New Britain, CT | Personal Oil Company, Inc. | 7570656C73 | Apprenticeship Sponsor | Jun 30, 2013 |
| Hartford, CT | Pertel Communications of New England, Inc. | B48CEE293E | Apprenticeship Sponsor | Jun 30, 2005 |
| Guilford, CT | Pete Willsher Plumbing & Heating | 96DF4C18FE | Apprenticeship Sponsor | Jun 30, 2026 |
| Westerly, RI | Pete's Electric Company, Inc. | B6595F6F2B | Apprenticeship Sponsor | Jun 30, 2019 |
| Prospect, CT | Peter Baltrush Electrical Inc. | B826EB0E87 | Apprenticeship Sponsor | Jun 30, 2022 |
| New Haven, CT | Peter E. Frate Electrician | D93578750F | Apprenticeship Sponsor | Jun 30, 2014 |
| Danbury, CT | Peter Hornik Plumbing & Heating LLC | 1E7D21E25B | Apprenticeship Sponsor | Jun 30, 2005 |
| Norwalk, CT | Peter J. Latham Plumbing & Heating | D92F7927F1 | Apprenticeship Sponsor | Jun 30, 2009 |
| Sandy Hook, CT | Peter Kowalski Plumbing & Heating | C4342AB61E | Apprenticeship Sponsor | Jun 30, 2006 |
| Fairfield, CT | PETER KUPCHICK HEATING & COOLING INC. | 3871A24D4A | Apprenticeship Sponsor | Jun 30, 2027 |
| Avon, CT | Peter M. Bakker Agency Inc. | A9A60ACE91 | Apprenticeship Sponsor | — |
| New Britain, CT | Peter Paul Electronics Co., Inc | 275875A4BB | Apprenticeship Sponsor | Jun 30, 2027 |
| Madison, CT | Peter White Plumbing, LLC | 9ED8065996 | Apprenticeship Sponsor | Jun 30, 2023 |
| Chester, CT | Peters Mechanical, LLC | 87A9381AED | Apprenticeship Sponsor | Jun 30, 2027 |
| East Berlin, CT | Petersen Electrical Contractors | 3B91FDB2EF | Apprenticeship Sponsor | Jun 30, 2027 |
| Middletown, CT | PETERSON BROTHERS ELECTRIC LLC | 8DC5A2B340 | Apprenticeship Sponsor | Jun 30, 2019 |
| Portland, CT | Peterson Fuel Oil, Inc. dba/Peterson Oil Company | D6BE74685A | Apprenticeship Sponsor | Jun 30, 2015 |
| North Haven, CT | Petey's Plumbing, LLC | 77225AF4E2 | Apprenticeship Sponsor | Jun 30, 2018 |
| Peace Dale, RI | Petro Holdings Inc. dba Buckley Heating & Cooling | 1FA4881911 | Apprenticeship Sponsor | Jun 30, 2027 |
| North Haven, CT | Petro Home Services | 99E5D3EDE8 | Apprenticeship Sponsor | Jun 30, 2027 |
| Plantsville, CT | PETROLEUM SERVICES INC | 7144C71B18 | Major Contractor + 1 more | Jun 30, 2027 |
| Watertown, CT | Petron Automation, Inc. | A87125051D | Apprenticeship Sponsor | Jun 30, 2023 |
| North Haven, CT | Petry Associates Plumbing & Heating LLC | A5052F2E9E | Apprenticeship Sponsor | Jun 30, 2013 |
| Danbury, CT | PFE Electric Corp. | D2E3D56824 | Apprenticeship Sponsor | Jun 30, 2027 |
| Woodstock, CT | Phase Out Electric | F48A2659AC | Apprenticeship Sponsor | Jun 30, 2026 |
| Plainville, CT | Phase To Phase Electric, LLC | C8363EB5A8 | Apprenticeship Sponsor | Jun 30, 2027 |
| Cromwell, CT | PHD Services, LLC | C2552CC8F9 | Apprenticeship Sponsor | Jun 30, 2013 |
| Riverton, CT | Phelps Electric LLC | 9AD7D52A77 | Apprenticeship Sponsor | Jun 30, 2005 |
| New Milford, CT | Phil Espitee Electric, LLC | 5493CA4E7A | Apprenticeship Sponsor | Jun 30, 2023 |
| Unionville, CT | Phil Gelineau Plumbing & Heating | B5F9EA124E | Apprenticeship Sponsor | Jun 30, 2023 |
| Lakeville, CT | Phil's Irrigation Inc | 2E66AFFC3E | Apprenticeship Sponsor | Jun 30, 2027 |
| Seymour, CT | Philibert Plumbing & Heating | 0FD1839722 | Apprenticeship Sponsor | Jun 30, 2007 |
| Stamford, CT | Philip Vatenzano & Sons Inc. | 268C4D31B4 | Apprenticeship Sponsor | Jun 30, 2004 |
| Fairfield, CT | PHOENIX AUDIO VIDEO LLC | 250CE6B195 | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| Seymour, CT | Phoenix Machine, Inc. | 428821D3A7 | Apprenticeship Sponsor | Jun 30, 2021 |
| Enfield, CT | Phoenix Manufacturing, Inc. | AB4CD2BDDC | Apprenticeship Sponsor | Jun 30, 2027 |
| Darien, CT | Phoenix Mechanical HVAC LLC | 1EA543119A | Apprenticeship Sponsor | Jun 30, 2027 |
| Stonington, CT | Phoenix Oil, LLC | 342E24DC7E | Apprenticeship Sponsor | Jun 30, 2009 |
| Westport, CT | Phoenix Security Corporation | D313444CE5 | Apprenticeship Sponsor | Jun 30, 2011 |
| Wallingford, CT | PHONETEL, INC. | 4988D9B83D | Apprenticeship Sponsor | Jun 30, 2026 |
| Brookfield, CT | Photronics, Inc. | BDD10EB415 | Apprenticeship Sponsor | Jun 30, 2021 |
| Shelton, CT | PHS Mechanical, LLC | DC6D7D0448 | Apprenticeship Sponsor | Jun 30, 2026 |
| New Haven, CT | Phyllis Bodel Childcare Center at Yale School of Medicine, Inc. | 38F3DE35A1 | Apprenticeship Sponsor | Jun 30, 2027 |
| Stamford, CT | PI/NYPI Security, LLC | 5A58875060 | Apprenticeship Sponsor | Jun 30, 2016 |
| Monroe, CT | Piccirillo Electric, LLC | F03D6139CB | Apprenticeship Sponsor | Jun 30, 2012 |
| Beacon Falls, CT | Pickasso Electric Company, LLC | A163D85878 | Apprenticeship Sponsor | Jun 30, 2022 |
| Greenwich, CT | Pickwick Plumbing LLC | DE753DEA38 | Apprenticeship Sponsor | Jun 30, 2028 |
| Yonkers, NY | Piece of Mind Security Inc. dba EBC Security, LLC | E6CE7CBB95 | Apprenticeship Sponsor | Jun 30, 2027 |
| Granby, CT | Pierce Builders, Inc | 510475103A | Demolition Contractor + 4 more | Oct 20, 2027 |
| Danbury, CT | Pilot Electric Inc. | 94DFC0E9D0 | Apprenticeship Sponsor | Jun 30, 2006 |
| Cheshire, CT | Pilothouse Communications, LLC | 627D762FD8 | Apprenticeship Sponsor | Jun 30, 2011 |
| Naugatuck, CT | PINERIDGE PLUMBING | BB2CD0FBA5 | Apprenticeship Sponsor | Jun 30, 2027 |
| New Fairfield, CT | Pinnacle Plumbing & Heating, Inc. | A70BC5CA2E | Apprenticeship Sponsor | Jun 30, 2011 |
| West Haven, CT | PINPOINT PROMOTIONS & PRINTING LLC PINPOINT | F5AD6BFB9A | Home Improvement Contractor + 1 more | Mar 31, 2027 |
| New Milford, CT | Pinter Electric LLC | 0248F0C524 | Apprenticeship Sponsor | Jun 30, 2027 |
| Meriden, CT | Pioneer Automated Systems PLLC | 37B51537E6 | Apprenticeship Sponsor | Jun 30, 2027 |
| Chicopee, MA | Pioneer Valley Concrete Services Inc. | 14EB2BDA9A | Apprenticeship Sponsor | Jun 30, 2012 |
| New Britain, CT | Pioneer Valley Photovoltaics dba PV Squared | 0D0DCF0398 | Apprenticeship Sponsor | Jun 30, 2013 |
| Monson, MA | Piotte's Plumbing and Heating | 6EFD27A87B | Apprenticeship Sponsor | — |
| New Britain, CT | Pipe Line Inc. | BD35E78993 | Apprenticeship Sponsor | Jun 30, 2010 |
| Bristol, CT | Pipe Works Plumbing & Heating, LLC | D7AADA4374 | Apprenticeship Sponsor | Jun 30, 2027 |
| Oxford, CT | Pipeline Inc. | 6DA71C6B74 | Apprenticeship Sponsor | Jun 30, 2016 |
| Hamden, CT | Pipeology, LLC | 989B0F0659 | Apprenticeship Sponsor | Jun 30, 2011 |
| East Windsor, CT | Pipetrails, LLC | CE6BD7F250 | Apprenticeship Sponsor | Jun 30, 2007 |
| Shelton, CT | Piscitelli Electric | 3A010E9C9E | Apprenticeship Sponsor | Jun 30, 2017 |
| Danbury, CT | Pitney Bowes Att: Ronald Laracca | DDD0B31826 | Apprenticeship Sponsor | Jun 30, 2009 |
| Plainville, CT | Pizzitola Electric Co. | 8392CC754E | Apprenticeship Sponsor | Jun 30, 2027 |
| Oakville, CT | PJ Electric, Inc. | A873CDB126 | Apprenticeship Sponsor | Jun 30, 2027 |
| Middletown, CT | PJK Electrical, LLC | C6B469B7F8 | Apprenticeship Sponsor | Jun 30, 2014 |
| East Windsor, CT | PK Electric LLC | BC923B75DC | Apprenticeship Sponsor | Jun 30, 2027 |
| Plainville, CT | Plainville East Coast Sheet Metal Inc. | 7BD22AC736 | Apprenticeship Sponsor | Jun 30, 2009 |
| Bristol, CT | Plainville Machine & Tool Co., Inc. | 0B2DEAC871 | Apprenticeship Sponsor | Jun 30, 2027 |
| Plainville, CT | Plainville Plating Company, Inc. | 15A1269583 | Apprenticeship Sponsor | Jun 30, 2008 |
| Plainville, CT | Plainville Special Tool, LLC | 2564D7F718 | Apprenticeship Sponsor | Jun 30, 2023 |
| Bethany, CT | Plastic Assembly Systems, LLC | 90C9312C3E | Apprenticeship Sponsor | Jun 30, 2027 |
| Seymour, CT | Plastic Molding Technology | AB61935736 | Apprenticeship Sponsor | Jun 30, 2004 |
| Branford, CT | Platinum Home Services, LLC | FB603AE243 | Apprenticeship Sponsor | Jun 30, 2017 |
| Torrington, CT | Platinum Salon | 9D72A0D1AF | Apprenticeship Sponsor | — |
| Dayville, CT | Ploughman's Heating & Cooling | 337A9D3670 | Apprenticeship Sponsor | Jun 30, 2006 |
| Uncasville, CT | Plum Fire Mechanical LLC | C29EE8792E | Apprenticeship Sponsor | Jun 30, 2017 |
| Glastonbury, CT | Plumb Co., LLC | 52E4561963 | Apprenticeship Sponsor | Jun 30, 2027 |
| Trumbull, CT | Plumb Perfection, LLC | EBAB70C0A2 | Apprenticeship Sponsor | Jun 30, 2020 |
| Watertown, CT | Plumb Tech, LLC | E6D41539B7 | Apprenticeship Sponsor | Jun 30, 2026 |
| East Hartford, CT | Plumbers Crack Plumbing LLC | 0914803CE4 | Apprenticeship Sponsor | Jun 30, 2026 |
| Hartford, CT | Plumbing Creations, LLC | 1C9DF6B12F | Apprenticeship Sponsor | Jun 30, 2027 |
| Enfield, CT | Plumbing Dynamics LLC | 0F05605551 | Apprenticeship Sponsor | Jun 30, 2009 |
| Wolcott, CT | Plumbing Engineering Service | 11CD79B54F | Apprenticeship Sponsor | Jun 30, 2009 |
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.