Major Contractor — page 4 of 7

1,861 businesses with an active “Major Contractor” credential — administered by the Department of Consumer Protection. State file of October 1, 2026.

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Place	Business	Record	Credentials	Latest expiration
Brimfield, MA	JS ELECTRIC INC	7FFE7E5CC3	Major Contractor	Jun 30, 2027
Bristol, RI	JSC CONSTRUCTION LLC	6E8BCB8184	Major Contractor	Jun 30, 2027
Stamford, CT	JSM MANAGEMENT INC	DC46A50555	Major Contractor	Jun 30, 2027
Armonk, NY	JT ORONZIO GENERAL CONTRACTING AND DEVELOPMENT INC	48D152EA3D	Major Contractor	Jun 30, 2027
Putnam, CT	JTD CONSTRUCTION LLC	49200D6CAD	Major Contractor + 1 more	Jun 30, 2027
Waterbury, CT	JUAN M CONSTRUCTION LLC	155FDA2B64	Major Contractor + 1 more	Jun 30, 2027
Derby, CT	JULIAN ENTERPRISES INC	BDB94DFC4A	Major Contractor	Jun 30, 2027
Rocky Hill, CT	JV III CONSTRUCTION INC	EC8519A5E1	Major Contractor	Jun 30, 2027
West Haven, CT	JV1 CONSTRUCTION LLC	D7C2B37B07	Major Contractor	Jun 30, 2027
Oxford, CT	K & W CONSTRUCTION LLC	E4CA438300	Major Contractor	Jun 30, 2027
Stamford, CT	K L MASTERS CONSTRUCTION COMPANY	538E3A8CD5	Major Contractor	Jun 30, 2027
North Charleston, SC	K-CON INC	493D21FC68	Major Contractor	Jun 30, 2027
Glastonbury, CT	K2 INFRASTRUCTURE GROUP, INC	4C1F133731	Major Contractor	Jun 30, 2027
Saint Louis, MO	KADEAN CONSTRUCTION COMPANY INC	4270460128	Major Contractor	Jun 30, 2027
New Rochelle, NY	KAEL CONTRACTING CORP	606DD53ECE	Major Contractor + 1 more	Jun 30, 2027
Bridgeport, CT	KAFA GROUP LLC	DFB68DBDAE	Major Contractor + 1 more	Jun 30, 2027
Plainville, CT	KAPURA GENERAL CONTRACTORS INC	5E6BA0E9E1	Asbestos Contractor + 4 more	Aug 31, 2027
Millington, NJ	KAUTILYA MANAGEMENT LLC	4800A15C7C	Major Contractor	Jun 30, 2027
New York, NY	KAY WATERPROOFING CORP K RESTORATION AND ROOFING	8669D287A9	Major Contractor	Jun 30, 2027
Farmington, CT	KBE BUILDING CORPORATION	1F9A8C970B	Major Contractor + 2 more	Jun 30, 2027
Phoenix, AZ	KEAR CIVIL CORPORATION	02877CB965	Major Contractor	Jun 30, 2027
West Springfield, MA	KEITER CORPORATION	9FAA162256	Major Contractor + 1 more	Jun 30, 2027
Canton, MA	KEITH CONSTRUCTION INC	7278802038	Major Contractor	Jun 30, 2027
Hanover, MD	KELLER NORTH AMERICA, INC.	B78E9A937B	Major Contractor + 1 more	Jun 30, 2027
Enfield, CT	KELLY CONSTRUCTION SERVICES INC	92175DFAD9	Major Contractor	Jun 30, 2027
Guilford, CT	KELLY PROPERTY MANAGEMENT LLC	73266E9076	Major Contractor	Jun 30, 2027
Brenham, TX	KENJURA TILE INC	56B71518C2	Major Contractor	Jun 30, 2027
Faribault, MN	KGPCO SERVICES LLC	22BEA859DA	Major Contractor	Jun 30, 2027
Tinton Falls, NJ	KIELY PIPELINE INTEGRITY LLC	3934AC649C	Major Contractor	Jun 30, 2027
Omaha, NE	KIEWIT INFRASTRUCTURE CO	F306BE8A36	Major Contractor	Jun 30, 2027
Omaha, NE	KIEWIT POWER CONSTRUCTORS CO	66945CC4B1	Major Contractor	Jun 30, 2027
Plainville, CT	KING NETWORK SERVICES INC	0ABA328FCE	Major Contractor	Jun 30, 2027
Meriden, CT	KINGSBROOK DEVELOPMENT CORP	399E1D434D	Major Contractor	Jun 30, 2027
Hamden, CT	KINGWOOD CONSTRUCTION INC	F575B35D35	Major Contractor	Jun 30, 2027
Arlington, TX	KINLEY CONSTRUCTION GROUP LTD	494DFABB35	Major Contractor	Jun 30, 2027
York, PA	KINSLEY CONSTRUCTION LLC	D8E93B6489	Major Contractor	Jun 30, 2027
Ludlow, MA	KLEEBERG SHEET METAL INC	1785DF57E1	Major Contractor	Jun 30, 2027
Mentor, OH	KLINE ROSTOCIL CONSTRUCTION CORPORATION	602A617427	Major Contractor	Jun 30, 2027
Norwalk, CT	KMC CONSTRUCTION & HOME IMPROVEMENT LLC	2988A5BEAC	Major Contractor + 2 more	Jun 30, 2027
West Hartford, CT	KMC CONSTRUCTION LLC	57A95499C7	Major Contractor + 1 more	Jun 30, 2027
Stamford, CT	KMF CONSTRUCTION LLC OLYMPIC CONSTRUCTION	511803DE4C	Major Contractor + 1 more	Jun 30, 2027
Scotch Plains, NJ	KMK DEVELOPMENT GROUP INC	8341ADF11B	Major Contractor	Jun 30, 2027
Lewisville,, TX	KMM TELECOMMUNICATION CORP	7E1EA648C6	Major Contractor	Jun 30, 2027
Waterford, CT	KOBYLUCK CONSTRUCTION COMPANY	BFFA446514	Major Contractor + 1 more	Jun 30, 2027
Houston, TX	KOCH SPECIALTY PLANT SERVICES LLC	4AB1A88102	Major Contractor	Jun 30, 2027
Trumbull, CT	KONE INC	74BD3C73D1	Major Contractor	Jun 30, 2027
Oxford, CT	KOVACS CONSTRUCTION CORPORATION	B4555A9A47	Major Contractor + 1 more	Jun 30, 2027
Brea, CA	KPRS CONSTRUCTION SERVICES, LLC	007CEE0B95	Major Contractor	Jun 30, 2027
Minneapolis, MN	KRAUS-ANDERSON CONSTRUCTION COMPANY	7FD53E0413	Major Contractor	Jun 30, 2027
Middletown, CT	KRONENBERGER & SONS RESTORATION, LLC. KRONENBERGER & SONS RESTORATION LLC	A47D58A46D	Asbestos Contractor + 4 more	Sep 30, 2027
Woodbury, NY	KROWN POINT CAPITAL CT LLC KROWN POINT CAPITAL	5194547DBD	Major Contractor + 1 more	Jun 30, 2027
Hampstead, NH	KTM EXTERIORS & RECYCLING LLC	103F405B8A	Major Contractor	Jun 30, 2027
Ridgefield, CT	L & B REMODELING LLC	A6C75631D4	Major Contractor	Jun 30, 2027
Dillsburg, PA	L CUBED CORPORATION TAM SYSTEMS	33586CE060	Major Contractor	Jun 30, 2027
New Haven, CT	L HOLZNER ELECTRIC CO	01CDFCF0CC	Major Contractor + 1 more	Jun 30, 2027
New Hartford, CT	L JACKSON CONSTRUCTION & DEVELOPMENT LLC	69AAE2206B	Major Contractor + 1 more	Jun 30, 2027
Northfield, CT	L R ENTERPRISES INC	FA4DB09D01	Major Contractor	Jun 30, 2027
Bristol, CT	L R M CONSTRUCTION SERVICES LLC	48FA31E3FB	Major Contractor + 1 more	Jun 30, 2027
White Plains, NY	L&M INTERIOR CONSTRUCTION LLC	D13260FE2B	Major Contractor	Jun 30, 2027
New York, NY	L'FORMA LLC	0029D55B4C	Major Contractor	Jun 30, 2027
Framingham, MA	L/R CONSTRUCTION INC	6170A67E5B	Major Contractor	Jun 30, 2027
Reading, PA	L2I CONSTRUCTION LLC	2F32A8D80F	Major Contractor	Jun 30, 2027
Boonton, NJ	LAKER CONSTRUCTION LLC LAKER CONSTRUCTION	47C3712B9F	Major Contractor	Jun 30, 2027
Pleasant Prairie, WI	LAKEVIEW CONSTRUCTION LLC	19B711E260	Major Contractor	Jun 30, 2027
Oxford, MA	LaMountain Bros Inc.	014C6C4DF3	Demolition Contractor + 2 more	Sep 30, 2027
Greenwich, CT	LANDIS PARTNERS INC	440C5E7F47	Major Contractor + 2 more	Jun 30, 2027
Athens, GA	LANDMARK URBAN CONSTRUCTION CT LLC	D5F16115FC	Major Contractor	Jun 30, 2027
Glastonbury, CT	LANDSEN CONSTRUCTION CORPORATION	3FFE2A18D2	Major Contractor + 2 more	Jun 30, 2027
Charlotte, NC	LANE CONSTRUCTION CORPORATION (THE)	261609CBA3	Major Contractor	Jun 30, 2027
South Windsor, CT	LANE VALENTE INDUSTRIES INC	AF61A19143	Major Contractor + 1 more	Jun 30, 2027
Bridgeport, CT	LANESE CONSTRUCTION INC	04A57DAD26	Major Contractor + 3 more	Jun 30, 2027
Johnsburg, IL	LANKFORD CONSTRUCTION COMPANY	5FEA01B8C5	Major Contractor	Jun 30, 2027
Stafford Springs, CT	LAROCHE BUILDERS LLC	CE1F6DCFEF	Major Contractor + 3 more	Jun 30, 2027
Meriden, CT	LAROSA BUILDING GROUP LLC	EC6EA3EC7A	Major Contractor + 4 more	Jun 30, 2027
Meriden, CT	LAROSA EARTH GROUP LLC	C5F9F08052	Major Contractor + 1 more	Jun 30, 2027
Farmington, CT	LAWRENCE BRUNOLI INC	2E438ACB4A	Major Contractor	Jun 30, 2027
Sandy, UT	LAYTON BUILDERS OF CONNECTICUT LLC	28006EBD39	Major Contractor	Jun 30, 2027
Enfield, CT	LEADING EDGE CONSTRUCTION LLC	FB9C30CA46	Major Contractor	Jun 30, 2027
Rochester, NY	LECHASE CONSTRUCTION SERVICES LLC	488E74E11D	Major Contractor	Jun 30, 2027
Quincy, MA	LEE KENNEDY CO INC	36474DBA32	Major Contractor	Jun 30, 2027
Middlefield, CT	LEED CONSTRUCTION LLC	E32FB8E5D5	Major Contractor	Jun 30, 2027
Saint Augusta, MN	LEGACY BUILDING SOLUTIONS LLC	F2258F58CD	Major Contractor	Jun 30, 2027
Wallingford, CT	LEGACY GROUP LLC (THE ) THE LEGACY GROUP LLC	17E6F5553A	Major Contractor	Jun 30, 2027
Southampton, PA	LEGACY SERVICE USA LLC	BBDCB9F9E5	Major Contractor	Jun 30, 2027
New Haven, CT	LEIBO BROTHERS MANAGEMENT LLC	05C46A5078	Major Contractor	Jun 30, 2027
Reston, VA	LEIDOS DB INC	71A0BB2584	Major Contractor	Jun 30, 2027
Warminster, PA	LEMUS ROOFING AND SIDING INC	BC02A9E43E	Major Contractor	Jun 30, 2027
Little Rock, AR	LEXICON INC	A77280AB6C	Major Contractor	Jun 30, 2027
West Hartford, CT	LI BROTHERS CONSTRUCTION LLC	896AC60A0E	Major Contractor + 1 more	Jun 30, 2027
Stratford, CT	LIGHT ASSOCIATES CONTRACTING INC	98E4D15388	Major Contractor	Jun 30, 2027
New Bedford, MA	LIGHTHOUSE MASONRY INC	426A71F6E2	Major Contractor	Jun 30, 2027
Alpharetta, GA	LIN R ROGERS ELECTRICAL CONTRACTORS INC	A42AE6F254	Major Contractor + 1 more	Jun 30, 2027
Richardson, TX	LINCOLN HANCOCK RESTORATION LLC	4AF0F4E675	Major Contractor + 1 more	Jun 30, 2027
New York, NY	LINEAL CONSTRUCTION & RESTORATION CORP	AC8B690C92	Major Contractor	Jun 30, 2027
Norwalk, CT	LINK WEST WIRELESS LLC	037F5FE4B2	Major Contractor	Jun 30, 2027
Syosset, NY	LIRO PROGRAM AND CONSTRUCTION MANAGEMENT PC	45747918CD	Major Contractor	Jun 30, 2027
Hamden, CT	LITCHFIELD BUILDERS INC	0C47A0BC6E	Major Contractor + 3 more	Jun 30, 2027
West Chester, OH	LITHKO CONTRACTING LLC	00593B5B93	Major Contractor	Jun 30, 2027
Brossard, QC	LITOSTROJ HYDRO INC	BA7D9E29D3	Major Contractor	Jun 30, 2027
Clovis, CA	LIVE ACTION GENERAL ENGINEERING INC	EA9856B1A7	Major Contractor	Jun 30, 2027
Jacksonville, FL	LIVE OAK CONTRACTING LLC	C79B8DEC53	Major Contractor	Jun 30, 2027
Dansville, NY	LMC INDUSTRIAL CONTRACTORS INC	C86A6B1D27	Major Contractor	Jun 30, 2027
Pascoag, RI	LOCKHEED ARCHITECTURAL SOLUTIONS INC.	A660864048	Major Contractor	Jun 30, 2027
New York, NY	LOD CONSTRUCTION LLC	279B204479	Major Contractor	Jun 30, 2027
Stamford, CT	LOFT DEVELOPMENT LLC	7746F60D89	Major Contractor + 1 more	Jun 30, 2027
New Prague, MN	LONSDALE CONSTRUCTION INC	DDA80F3F17	Major Contractor	Jun 30, 2027
New London, CT	LORING & SON MASONRY RESTORATION INC	F34CC8B4AA	Major Contractor	Jun 30, 2027
Plainville, CT	LOUREIRO BUILDING CONSTRUCTION, LLC	FFD160689F	Major Contractor	Jun 30, 2027
Plainville, CT	LOUREIRO CONTRACTORS INC	1B966590A7	Demolition Contractor + 1 more	Sep 30, 2027
Enfield, CT	LOUTH CALLAN RENEWABLES LLC	C8FD2E212C	Major Contractor + 1 more	Jun 30, 2027
Mooresville, NC	LOWE'S HOME CENTERS LLC	4300BC92C2	Major Contractor + 2 more	Jun 30, 2027
White Plains, NY	LRC CONSTRUCTION LLC	8D1434BE58	Major Contractor	Jun 30, 2027
New Britain, CT	LTC CONSTRUCTION COMPANY INC LEO T CAMOSCI	9DB1BA150D	Major Contractor	Jun 30, 2027
Hatboro, PA	LTCI LTD	1A48314FA4	Major Contractor	Jun 30, 2027
East Haven, CT	LUCIANI ENTERPRISES LLC SERVPRO OF MERIDEN	A74BB8F2CA	Major Contractor + 1 more	Jun 30, 2027
Wallingford, CT	LUCIBELLO ELECTRIC CO INC	2055A82547	Major Contractor + 1 more	Jun 30, 2027
Golden Valley, MN	LVC COMPANIES INC	4068132EFB	Major Contractor	Jun 30, 2027
Winston Salem, NC	LYNDON STEEL COMPANY LLC	AF76D6308F	Major Contractor	Jun 30, 2027
Southington, CT	LYNX SYSTEMS LLC	147BFC7BC3	Apprenticeship Sponsor + 2 more	Jun 30, 2027
Bridgeport, CT	M & L CONSTRUCTION INC	91CA7C6106	Major Contractor	Jun 30, 2027
Wilton, CT	M & M CONSTRUCTIONS LLC	03F1647560	Major Contractor + 1 more	Jun 30, 2027
Middletown, CT	M A & M INCORPORATED ARESCO CONSTRUCTION CO	1389EAC9AE	Major Contractor	Jun 30, 2027
Minneapolis, MN	M A MORTENSON CO	8AA6A119F4	Major Contractor	Jun 30, 2027
San Marcos, CA	M BAR C CONSTRUCTION INC	EECE6CBE12	Major Contractor	Jun 30, 2027
Stamford, CT	M GOTTFRIED INC	2134F02256	Major Contractor + 1 more	Jun 30, 2027
Cumberland, RI	M WEISMAN ROOFING COMPANY INC	8D8D1AAD3F	Major Contractor	Jun 30, 2027
North Branford, CT	M2X GRP LLC	985319FF80	Major Contractor	Jun 30, 2027
Clifton, NJ	MAARV WATERPROOFING INC	DD07E1B895	Major Contractor	Jun 30, 2027
Old Lyme, CT	MACHNIK BROS INC	4FC9F2EF96	Major Contractor + 2 more	Jun 30, 2027
Meriden, CT	MACRI ROOFING INC	15B76D3444	Major Contractor + 1 more	Jun 30, 2027
Lubbock, TX	MADEWELL CONSTRUCTION INC	C3FB9D32B7	Major Contractor	Jun 30, 2027
Milford, CT	MADISON PROPERTIES LLC	6478A221B5	Major Contractor + 2 more	Jun 30, 2027
East Haven, CT	MADONNA PROPERTY MANAGEMENT LLC	11C95AF919	Major Contractor	Jun 30, 2027
Stamford, CT	MAGNA CONSTRUCTION LIMITED LLC	56F34B28FE	Major Contractor	Jun 30, 2027
Beacon Falls, CT	MAGNA STEEL SALES INC	02E10AE283	Major Contractor	Jun 30, 2027
North Andover, MA	MAIURI ELECTRICAL CORP	3DDED9B319	Major Contractor	Jun 30, 2027
Orange, CT	MAJ HOME IMPROVMENT LLC	8C8B9A50F6	Major Contractor + 1 more	Jun 30, 2027
Milford, CT	MAJOR OAK BUILDERS & CONSULTANTS LLC	0D09EB8E9B	Major Contractor + 2 more	Jun 30, 2027
Carlsbad, CA	MAKORABCO LLC	13CAADA784	Major Contractor	Jun 30, 2027
San Francisco, CA	MALCOLM DRILLING COMPANY INC	A2B6402626	Major Contractor	Jun 30, 2027
Deer Park, NY	MALTA ENTERPRISES INC	744EA5B833	Major Contractor	Jun 30, 2027
Plainville, CT	MANAFORT BROTHERS INCORPORATED	A9095F4FD4	Major Contractor + 1 more	Jun 30, 2027
High Point, NC	MANAGEMENT RESOURCE SYSTEMS INC	BDE2456AD0	Major Contractor	Jun 30, 2027
Brookfield, CT	MARCELLI LLC	30619C4A9F	Major Contractor	Jun 30, 2027
Wayne, NJ	MARCH ASSOCIATES	B88B00B403	Major Contractor	Jun 30, 2027
Warrendale, PA	MARCO CONTRACTORS INC	C0C5CE9F78	Major Contractor	Jun 30, 2027
Newington, CT	MARCONI CONSTRUCTION CO INC	9E08234E55	Major Contractor + 1 more	Jun 30, 2027
Manchester, CT	MARCUS COMMUNICATIONS LLC	D5F79EF816	Major Contractor	Jun 30, 2027
Hopedale, MA	MARGUERITE CONCRETE INC	6E26BDD74B	Major Contractor	Jun 30, 2027
Addison, IL	MARIOTTINI CONSTRUCTION INC	C85696BD0C	Major Contractor	Jun 30, 2027
Stamford, CT	MARLO ASSOCIATES INC	7002CBCB93	Major Contractor	Jun 30, 2027
South Hadley, MA	MAROIS CONSTRUCTION CO INC	11F01A1F9F	Major Contractor	Jun 30, 2027
Willoughby, OH	MAROUS BROTHERS CONSTRUCTION INC	8BA9795973	Major Contractor	Jun 30, 2027
Stamford, CT	MARTIN MAINTENANCE LLC	E8B25EA231	Major Contractor + 1 more	Jun 30, 2027
Neptune, NJ	MASSA MULTIMEDIA ARCHITECTURE PC	4406664774	Architecture Firm + 1 more	Jul 31, 2027
Branford, CT	MASSEY'S PLATE GLASS & ALUMINUM INC	1AB5F70393	Major Contractor	Jun 30, 2027
Coral Gables, FL	MASTEC NETWORK SOLUTIONS LLC	08F6652F46	Major Contractor	Jun 30, 2027
Bloomfield, CT	MATHER CORPORATION	C4DA60912A	Major Contractor + 1 more	Jun 30, 2027
Tulsa, OK	MATRIX NORTH AMERICAN CONSTRUCTION INC	0B03106C7F	Major Contractor	Jun 30, 2027
Indianapolis, IN	MATTCON GENERAL CONTRACTORS INC	6CE9B5C558	Major Contractor	Jun 30, 2027
Baltic, CT	MATTERN CONSTRUCTION INC	C8B89A1027	Major Contractor + 3 more	Jun 30, 2027
Delray Beach, FL	MAVACON USA, LLC	A63D4810B4	Major Contractor	Jun 30, 2027
Monroeville, PA	MAX CONSTRUCTION CO INC	2690E562AD	Major Contractor	Jun 30, 2027
Wallingford, CT	MAYBURY ASSOCIATES INC MAYBURY MATERIAL HANDLING	598C4ADFEB	Major Contractor	Jun 30, 2027
Pottstown, PA	MAYER POLLOCK STEEL CORPORATION	8F85B00875	Major Contractor	Jun 30, 2027
Holtsville, NY	MAYNE CONSTRUCTION OF LONG ISLAND INC	614978CFB1	Major Contractor	Jun 30, 2027
Prospect, CT	MCALLEN CONSTRUCTION INC	0DC31DBE40	Major Contractor + 3 more	Jun 30, 2027
Saint Louis, MO	MCCARTHY BUILDING COMPANIES INC	6D6B572ED2	Major Contractor	Jun 30, 2027
South Windsor, CT	MCCARTHY CONCRETE INC	9195824F3E	Major Contractor + 1 more	Jun 30, 2027
Branford, CT	MCDONALD CONSTRUCTION INC	BAFFF1E1F0	Major Contractor + 1 more	Jun 30, 2027
Westbury, NY	MCFAR CONTRACTING CORP	9EF480AFD1	Major Contractor	Jun 30, 2027
Harrison, NY	MCG CONSTRUCTION LLC	88378EBFAC	Major Contractor	Jun 30, 2027
Livermore, CA	MCGRATH RENTCORP	B5ABB0C9E3	Major Contractor	Jun 30, 2027
Hartford, CT	MCM ACOUSTICS LLC	820612B0C9	Major Contractor	Jun 30, 2027
Omaha, NE	MCNALLY TUNNELING CORPORATION	014251E3F8	Major Contractor	Jun 30, 2027
Lincolndale, NY	McNamee Construction Corp.	C86CEED075	Demolition Contractor + 1 more	Jun 30, 2027
Farmington, CT	MCPHEE ELECTRIC LTD LLC	D6D90A76A0	Major Contractor	Jun 30, 2027
Winsted, CT	MDE LLC	40400CC7CC	Major Contractor	Jun 30, 2027
Scituate, MA	MDM CONSTRUCTION MANAGEMENT INC	FDD972DB58	Major Contractor	Jun 30, 2027
Dudley, MA	MDM ENGINEERING COMPANY INC	C274C72963	Major Contractor	Jun 30, 2027
Ottawa, ON	MDS AERO SUPPORT CORPORATION	41F42E1194	Major Contractor	Jun 30, 2027
Boca Raton, FL	MDS BUILDERS INC	C69338B4F1	Major Contractor	Jun 30, 2027
Lenexa, KS	MEARS GROUP INC	0B2605ABBF	Major Contractor	Jun 30, 2027
Stamford, CT	MEDOIT GROUP LLC	D7F94BBDD0	Major Contractor	Jun 30, 2027
Southbridge, MA	MEI RIGGING & CRATING LLC MEI INDUSTRIAL SOLUTIONS	F68153F523	Major Contractor	Jun 30, 2027
Wallingford, CT	MEJIA CONCRETE CONSTRUCTION LLC	5EA17833F3	Major Contractor	Jun 30, 2027
Fairfield, CT	MELWOOD CONTRACTING CORP	1D03E361EC	Major Contractor	Jun 30, 2027
San Antonio, TX	MERCHCO SERVICES INC	288A007CC1	Major Contractor	Jun 30, 2027
New Haven, CT	MERCURY COMMUNICATIONS INCORPORATED	AFC754A9FC	Major Contractor	Jun 30, 2027
Monroe, CT	MERRITT CONSTRUCTION LLC	B9CD76BCCE	Major Contractor	Jun 30, 2027
Plaistow, NH	METHUEN CONSTRUCTION CO INC	F4D5C999E2	Major Contractor	Jun 30, 2027
Boston, MA	METRIC CONSTRUCTION CORPORATION	0E092D5BEE	Major Contractor	Jun 30, 2027
Farmington, CT	METRO CONSTRUCTION CORPORATION (THE)	066908B7F0	Major Contractor + 1 more	Jun 30, 2027
Manchester, NH	METRO WALLS LLC	E06566BA8A	Major Contractor	Jun 30, 2027
New York, NY	METROPOLITAN WALTERS LLC	0DDB13677B	Major Contractor	Jun 30, 2027
Scottsdale, AZ	MFIB AZ LLC MFRG-ICON CONSTRUCTION	BB72372C9A	Major Contractor	Jun 30, 2027
Lynnfield, MA	MIANO CONSTRUCTION CORP	53C3AF9740	Major Contractor	Jun 30, 2027
Brownsville, WI	MICHELS CONSTRUCTION INC	B642AABD4F	Major Contractor + 1 more	Jun 30, 2027
Grand Haven, MI	MICHIGAN COMMERCIAL CONTRACTORS INC	1BC719690D	Major Contractor	Jun 30, 2027
Newport, MI	MID-AMERICAN GUNITE INC MAG ENERGY	63169344D8	Major Contractor	Jun 30, 2027
Forest Park, GA	MID-SOUTH SUBCONTRACTORS INC MID-SOUTH ROOF SYSTEMS	F0EDA3BF9A	Major Contractor	Jun 30, 2027
West Hartford, CT	MID-STATE MASON CONTRACTORS INC	AA9EAE4397	Major Contractor	Jun 30, 2027
Newington, CT	MIDCONN CONSTRUCTION LLC	B45EDC712C	Major Contractor + 1 more	Jun 30, 2027
Littleton, MA	MIDDLESEX CORPORATION THE MIDDLESEX CORPORATION	BB5F1080AC	Major Contractor + 1 more	Jun 30, 2027
Shelton, CT	MIDLAND DEVELOPMENT AND CONTRACTING LLC	7914F6EE88	Major Contractor	Jun 30, 2027
Bloomfield, CT	MIDSTATE SITE DEVELOPMENT LLC	698545E25C	Major Contractor + 1 more	Jun 30, 2027
Detroit, MI	MIDWEST STEEL INC	6A393B264B	Major Contractor	Jun 30, 2027
New Haven, CT	MILESTONE CONSTRUCTION SERVICES LLC	2CCED301DB	Major Contractor + 1 more	Jun 30, 2027
Lincoln, RI	MILL CITY CONSTRUCTION INC	7300B17AB5	Major Contractor	Jun 30, 2027
Torrington, CT	MILLENNIUM BUILDERS INC	8629ABC6E5	Major Contractor + 2 more	Jun 30, 2027
Coralville, IA	MILLENNIUM CONCRETE, LLC	F49C294184	Major Contractor	Jun 30, 2027
Rocky Hill, CT	MILLENNIUM CONSTRUCTION SERVICES LLC	DA3D2E022F	Major Contractor	Jun 30, 2027
Rosedale, MD	MILLER SERVICES INC MILLER CONSTRUCTION SERVICES	92F07D2C89	Major Contractor	Jun 30, 2027
Red Lion, PA	MINOAN INDUSTRIAL LLC	1189845D72	Major Contractor	Jun 30, 2027
Thunder Bay, ON	MIRABELLI CORPORATION AMERICA	D1DF601986	Major Contractor	Jun 30, 2027
Neenah, WI	MIRON CONSTRUCTION CO INC	AC7D9486C9	Major Contractor	Jun 30, 2027
South Windsor, CT	MISCELLANEOUS STEEL AND RAIL MISCELLANEOUS STEEL AND RAIL, LLC	DFAFF7E10B	Major Contractor	Jun 30, 2027
Plainville, CT	MIZZY CONSTRUCTION INC	A75BDA78D6	Major Contractor + 1 more	Jun 30, 2027
Thomaston, CT	MJM CONSTRUCTION GROUP LLC	7515576476	Major Contractor	Jun 30, 2027
East Hartford, CT	MKR LLC MKR CONSTRUCTION & LANDSCAPING	0BBAA59852	Major Contractor	Jun 30, 2027
Great Neck, NY	MLJ CONTRACTING LLC	556DB38294	Major Contractor	Jun 30, 2027
Rocky Hill, CT	MMA DRYWALL LLC	93673B857F	Major Contractor	Jun 30, 2027
Roslyn Heights, NY	MNR GROUP INC	08E31FEE59	Major Contractor	Jun 30, 2027
Newington, CT	MODERN CONCRETE PUMPING INC	BD5D0E2A33	Major Contractor	Jun 30, 2027
Farmington, CT	MODERN MECHANICAL SYSTEMS INC	3E3320E95D	Major Contractor	Jun 30, 2027
Joppa, MD	MODULAR GENIUS INC	38281AA3FD	Major Contractor	Jun 30, 2027
Plantsville, CT	MOHAWK NORTHEAST INC.	3B855AC175	Demolition Contractor + 3 more	Sep 30, 2027
Middlefield, CT	MONARCA ENTERPRISES LLC	F589068A86	Major Contractor	Jun 30, 2027
Waterbury, CT	MONTAGNO CONSTRUCTION INC	6F61B35956	Major Contractor + 2 more	Jun 30, 2027
West Springfield, MA	MOR SERVICES INC	82C712CEDA	Major Contractor	Jun 30, 2027
Danbury, CT	MORGANTI GROUP INC (THE)	297C4973D9	Major Contractor	Jun 30, 2027
Coventry, RI	MORRIS ROOFING SOLUTIONS INC	1904F6C962	Asbestos Contractor + 1 more	Jul 31, 2027
Rosemont, IL	MOSAIC CONSTRUCTION LLC	02067F003B	Major Contractor	Jun 30, 2027
Trumbull, CT	MP CONSTRUCTION LLC	105E281523	Major Contractor + 2 more	Jun 30, 2027
New York, NY	MS PARK CONSTRUCTION LLC	B4E4AEBBE7	Major Contractor	Jun 30, 2027
West Hartford, CT	MSC OF CONNECTICUT LLC	106DB98B0B	Major Contractor	Jun 30, 2027
Arvada, CO	MT2 LLC METALS TREATMENT TECHNOLOGIES LLC	094B2BEBF2	Major Contractor	Jun 30, 2027
Wall Township, NJ	MULTI ROOF MAINTENANCE LLC	96612E08AA	Major Contractor	Jun 30, 2027
Lockport, NY	MULVEY CONSTRUCTION INC	6B8121F68F	Major Contractor	Jun 30, 2027
Wolcott, CT	MUSANO INC	CF22871EE6	Major Contractor	Jun 30, 2027
Broomfield, CO	MWH CONSTRUCTORS INC	1F759FF63B	Major Contractor	Jun 30, 2027
Stratford, CT	N AND S ELECTRIC INC N & S ELECTRIC INC	96FDE0698F	Major Contractor + 1 more	Jun 30, 2027
Oxford, CT	NAC Industries Inc.	F54491FB29	Demolition Contractor + 2 more	Sep 30, 2027
Denver, CO	NACC CONSTRUCTION LLC	DA934B8C90	Major Contractor	Jun 30, 2027
Vernon, CT	NAEK CONSTRUCTION COMPANY INC	4BDF1104C3	Major Contractor + 1 more	Jun 30, 2027
Issaquah, WA	NAES POWER CONTRACTORS INC	88B76E1BBA	Major Contractor	Jun 30, 2027
North Brookfield, MA	NASH CONTRACTING INC	6D9508EEDD	Major Contractor	Jun 30, 2027
Alpharetta, GA	NATIONAL CUSTOM CORPORATE SERVICES INC	024400ADDB	Major Contractor	Jun 30, 2027
Medina, OH	NATIONAL PLEASANT VALLEY CORPORATION	24EC45B3C9	Major Contractor	Jun 30, 2027
West Haven, CT	NATIONS ROOF OF NEW ENGLAND LLC	B65C65279A	Major Contractor + 1 more	Jun 30, 2027
Branford, CT	NATIONWIDE SECURITY CORPORATION	B33AE97E33	Major Contractor + 1 more	Jun 30, 2027
Westport, CT	NDC ASSOCIATES LLC	6E7E5E15BA	Major Contractor	Jun 30, 2027
West Bridgewater, MA	NEC GROUP LLC	5105661668	Tv & Radio Dealer + 1 more	Aug 31, 2027
Randolph, MA	NEI GENERAL CONTRACTING INC	EEB7C7D905	Major Contractor	Jun 30, 2027
Depew, NY	NETH & SON INC	5FF3D935CB	Major Contractor	Jun 30, 2027
Plainville, CT	NETWORK DESIGN & CONSTRUCTION INC	5D5C78BFB6	Major Contractor	Jun 30, 2027
Plainville, CT	NETWORK INTERIOR INC	34E178D05B	Major Contractor	Jun 30, 2027
Beaver Dam, WI	NEUMAN POOLS INC NEUMAN GROUP	8330FD1164	Major Contractor	Jun 30, 2027
Newington, CT	NEW BRITAIN ROOFING CO INC	7226BC41B5	Major Contractor	Jun 30, 2027
Westport, CT	NEW ENGLAND COASTAL DEVELOPMENT LLC	CBFAA3E9C2	Major Contractor	Jun 30, 2027
Rumford, RI	NEW ENGLAND CONSTRUCTION CO INC RI	C3FDF648F0	Major Contractor	Jun 30, 2027
Boston, MA	NEW ENGLAND FOUNDATION COMPANY	FCA8DCF60A	Major Contractor	Jun 30, 2027
Naugatuck, CT	NEW ENGLAND MASONRY & ROOFING CO.	E07B1810E5	Asbestos Contractor + 2 more	Sep 30, 2027
Milford, CT	New England Yankee Construction	3850CD6EFD	Demolition Contractor + 3 more	Sep 30, 2027
Cheshire, CT	NEW FRESH HOMES LLC	C8C5F811BE	Major Contractor + 1 more	Jun 30, 2027
Hartford, CT	NEWFIELD CONSTRUCTION GROUP LLC	B06B387298	Major Contractor	Jun 30, 2027
Newington, CT	NEWINGTON ELECTRIC CO INC	6AAEA517C3	Major Contractor + 2 more	Jun 30, 2027
Mc Ewen, TN	NEWTON WELDING AND ERECTION INC	E643F70000	Major Contractor	Jun 30, 2027
Lexington, KY	NEXGEN CONTRACTING LLC	97C7CF92B8	Major Contractor	Jun 30, 2027
Long Island City, NY	NEXT SOLUTIONS CS INCORPORATED	ABC8C3B768	Major Contractor + 1 more	Jun 30, 2027
Marlton, NJ	NEXTGEN SERVICES GROUP INC	EE63A5AAE4	Major Contractor	Jun 30, 2027
Bloomfield, CT	NEXXGEN BUILDERS LLC	0E63737048	Major Contractor	Jun 30, 2027
Avon, CT	NIMA MANAGEMENT LLC	78C48264FF	Major Contractor	Jun 30, 2027
Cedar Knolls, NJ	NIRAM INC	9095BF73DF	Asbestos Contractor + 2 more	Sep 30, 2027
Stamford, CT	NLONGO CONSTRUCTION LLC	59A5231A3A	Major Contractor + 1 more	Jun 30, 2027
Centerbrook, CT	NOBLE CONSTRUCTION & MANAGEMENT INC	DDD48E2DEC	Major Contractor	Jun 30, 2027
Westborough, MA	NORESCO LLC	7CB1E62378	Major Contractor + 1 more	Jun 30, 2027
Tampa, FL	NORTH AMERICAN ROOFING SERVICES LLC	F657C0FD06	Major Contractor	Jun 30, 2027
Milford, CT	NORTH ATLANTIC CONSTR CO INC	1BE7FBCB0E	Major Contractor	Jun 30, 2027
Hartsville, SC	NORTH INDUSTRIAL LLC	5EA0278707	Major Contractor	Jun 30, 2027
Ludlow, MA	NORTHEAST CONTRACTORS INC	0ED06C5003	Major Contractor	Jun 30, 2027
Wall Township, NJ	NORTHEAST REMSCO CONSTRUCTION INC	445010DC5D	Major Contractor	Jun 30, 2027
Farmington, CT	NORTHEAST TOWERS INC	B7A504E6F0	Major Contractor + 1 more	Jun 30, 2027
Sandy Hook, CT	NORTHEAST WATER MAINTENANCE & SERVICE INC	E883052FB2	Major Contractor	Jun 30, 2027
Palmer, MA	NORTHERN CONSTRUCTION SERVICE LLC	63FE432A7A	Major Contractor	Jun 30, 2027
Stratford, CT	NORWALK MARINE CONTRACTORS INC	C480FAA74F	Major Contractor + 1 more	Jun 30, 2027
Cheshire, CT	NOSAL BUILDERS INC.	08AD7C891D	Demolition Contractor + 3 more	Sep 30, 2027
Clinton, CT	NOSAL INDUSTRIES INC	BBFB8FDBB2	Major Contractor + 1 more	Jun 30, 2027
Flushing, NY	NOTIAS CONSTRUCTION INC	615E04517B	Major Contractor	Jun 30, 2027
Warminster, PA	NOTTINGHAM BUILDING GROUP LLC	0372910095	Major Contractor	Jun 30, 2027
Mullica Hill, NJ	NOVA CONSTRUCTION MILLWORK INC	411C07F9FE	Major Contractor	Jun 30, 2027
St Petersburg, FL	NOVA HOTEL RENOVATION & CONSTRUCTION LLC	3F32DEF9D9	Major Contractor	Jun 30, 2027
Greenland, NH	NOVEL IRON WORKS INC	518D3A5C51	Major Contractor	Jun 30, 2027
Menomonee Falls, WI	NOVUM STRUCTURES LLC	0996D7C480	Major Contractor	Jun 30, 2027
Woodstock, GA	NPSG BUILT LLC	0985723A23	Major Contractor	Jun 30, 2027
Stamford, CT	NUCONN DISMANTLING LLC	9C3846ABE3	Major Contractor	Jun 30, 2027
New York, NY	NUCOR CONSTRUCTION CORP	93EE30D6E8	Major Contractor	Jun 30, 2027
Bloomfield, CT	NUNES CONNECTICUT INC	8E3981F1A8	Major Contractor	Jun 30, 2027
Norwich, CT	NUTMEG COMPANIES INC (THE)	596C65AF6F	Major Contractor + 1 more	Jun 30, 2027
Danbury, CT	NY CONN CORPORATION (THE)	5257BAE658	Major Contractor + 1 more	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.