Form 5500 Plan Sponsors in Massachusetts
Page 331 of 343 · 34,234 sponsors (2020–2025).
Wastewater Treatment Services
04-3570715Raynham, MA·1 plan·2024, 2023, 2022, 2021, 2020Watch Cdc
22-2918528Waltham, MA·1 plan·2024, 2023, 2022, 2021, 2020Watchdog Security Systems, INC.
04-3566857Westminster, MA·2 plans·2024, 2023, 2022, 2021, 2020Watchman Waterproofing, LP
47-2757859Pembroke, MA·1 plan·2024, 2023, 2022, 2021, 2020Water Consulting Specialists, INC.
23-2732064Pocasset, MA·1 plan·2022, 2021, 2020Water Views Services INC
13-4311414West Tisbury, MA·1 plan·2024Water Wizz Of Cape Cod, INC.
04-2795332E. Wareham, MA·1 plan·2022, 2021, 2020Waterfield Foods, INC.
86-2314052Winchester, MA·1 plan·2024, 2023, 2022, 2021Waterford Development Corp.
04-3269941Framingham, MA·1 plan·2022, 2021, 2020Waterfront Builders, INC.
83-1659235Edgartown, MA·1 plan·2024, 2023Waterfront Travel Service, INC.
04-2572514Boston, MA·2 plans·2024, 2023, 2022, 2021, 2020Waterhouse Press
46-3767809Swampscott, MA·1 plan·2024, 2023, 2022, 2021, 2020Waterleau, INC.
47-4254990Dalton, MA·1 plan·2024, 2023, 2022, 2021, 2020Waterman Building & Remodeling LLC
47-4207526Middleborough, MA·1 plan·2024Waterman Construction
32-0129740Seekonk, MA·1 plan·2024, 2025, 2023, 2022, 2021, 2020Watermark Donut Company, LLC
04-3074059Braintree, MA·1 plan·2024, 2025, 2023, 2022, 2021, 2020Watermark Environmental, Incorporated
04-3568601Chelmsford, MA·1 plan·2024, 2023, 2022, 2021, 2020Watermelon Bay, LLC
93-3954630Winchester, MA·1 plan·2024, 2023Waters & Brown, INC.
04-2454274Salem, MA·1 plan·2021, 2020Waters Technologies Corporation
04-3234558Milford, MA·5 plans·2024, 2023, 2022, 2021, 2020Waterside 303 Corp.
47-2584106Boston, MA·1 plan·2024, 2023, 2022, 2021, 2020Waterside Companies LLC
92-3465616Osterville, MA·1 plan·2024Waterside Market Group INC
26-1284592Vineyard Haven, MA·1 plan·2024, 2023, 2022, 2021Waterstone Properties Group, INC
20-4509743Needham, MA·1 plan·2024, 2023, 2022, 2021, 2020Watertown Boys & Girls Club
04-6134699Watertown, MA·1 plan·2024, 2023, 2022, 2021, 2020Watertown Cable Access Corpora
20-2197937Watertown, MA·1 plan·2024, 2023, 2022, 2021, 2020Watertown Dental Center
04-3215616Watertown, MA·1 plan·2020Watertown Engineering Corp
04-2277201Whitman, MA·1 plan·2024, 2023, 2022, 2021, 2020Watertown Family Dental
82-0689857Watertown, MA·1 plan·2024Watertown Iron Works INC
04-2668919Woburn, MA·1 plan·2023, 2022, 2021, 2020Watertown Municipal Credit Union
04-1950795Watertown, MA·1 plan·2024, 2023, 2022, 2021, 2020Watertown Savings Bank
04-1950840Watertown, MA·4 plans·2024, 2023, 2022, 2021, 2020Waterview Lodge LLC
47-5524625Ashland, MA·1 plan·2024, 2023Waterville Supply, LLC
46-0532786Westborough, MA·1 plan·2024, 2025, 2023, 2022, 2021, 2020Waterway Capital LLC
45-0514174Boston, MA·1 plan·2021, 2020Waterway Partners LLC
83-2803820Boston, MA·1 plan·2024, 2023, 2022Waterworks Of Nantucket, INC.
51-0441124Nantcuket, MA·1 plan·2020Watkin Dental Associates, D.D.S., P.C.
20-2549347Newton, MA·1 plan·2024, 2023, 2022, 2021, 2020Watkins Financial And Insuranc
11-3694800North Andover, MA·1 plan·2023, 2022, 2021, 2020Watson Dalton, LLC
83-2763548Topsfield, MA·1 plan·2022, 2021Watts Eye Associates LLC
54-2065263Newburyport, MA·1 plan·2024, 2023, 2022, 2021, 2020Watts Heating & Refrigeration, LLC
82-2795278Nantucket, MA·1 plan·2024, 2023, 2022, 2021Watts Water Technologies, INC.
04-2916536North Andover, MA·4 plans·2024, 2023, 2022, 2021, 2020Wave Dash, LLC
88-2013780Cambridge, MA·1 plan·2022Wave Equity Partners LLC
26-1898771Boston, MA·1 plan·2024, 2023, 2022Wave Lengths Pro Audio LLC
20-2308578Leominster, MA·1 plan·2020Wave Life Sciences USA, INC.
27-1038236Cambridge, MA·2 plans·2024, 2023, 2022, 2021, 2020Wave Mobile Money INC.
85-2753880Boston, MA·1 plan·2021Wave Technologies INC
04-3563711Quincy, MA·1 plan·2022, 2021Wavebreak INC.
84-4375395Cambridge, MA·2 plans·2023, 2022, 2021, 2020Wavebreak Therapeutics, LLC
99-2086839Boston, MA·1 plan·2024, 2025Waveguide Corporation
27-1718568Newton Center, MA·1 plan·2024, 2023, 2022, 2021, 2020Waverley Dental, PC
03-0536739Belmont, MA·1 plan·2023, 2022, 2021, 2020Waverley Insurance Agency INC.
04-2156358Belmont, MA·1 plan·2024, 2023, 2022, 2021, 2020Waverley Square Daycare LLC
45-2920614Belmont, MA·1 plan·2024, 2023, 2022, 2021, 2020Waverly Oaks Golf Club, INC.
04-3397545Plymouth, MA·2 plans·2024, 2023, 2022, 2021Waves Of Awakening Ctr For Professional Medicine
84-3954453Plymouth, MA·1 plan·2024, 2023, 2022, 2021, 2020Waxing Moon Corp.
84-2827890Wakefield, MA·1 plan·2023, 2022, 2021, 2020Way Finders, INC.
04-2518368Springfield, MA·2 plans·2024, 2023, 2022, 2021, 2020Way Home Improvement INC
82-5082534Springfield, MA·1 plan·2021, 2020Way Leather Company, C/O Renco Management
04-1952400Auburndale, MA·1 plan·2024, 2025, 2023, 2022, 2021, 2020Wayfair LLC
26-2188108Boston, MA·2 plans·2024, 2023, 2022, 2021, 2020Wayfall Corporation
81-1526399Cambridge, MA·1 plan·2021, 2020Wayland Animal Clinic
27-2461988Wayland, MA·1 plan·2024, 2025, 2023, 2022, 2021, 2020Wayland Dental, LLC
11-3772466Wayland, MA·1 plan·2021, 2020Wayland Kitchens Of Needham Ll
88-2647165East Walpole, MA·1 plan·2024Wayland Millwork Corp
04-2265439Marlborough, MA·1 plan·2024, 2023, 2022Wayland Oral Surgery, P.C.
27-1740393Wayland, MA·1 plan·2024, 2023, 2022, 2021, 2020Wayland Personal Physicians Pl
81-4461317Wayland, MA·1 plan·2024, 2025, 2023, 2022, 2021, 2020Waylens, INC.
47-2163295Waltham, MA·1 plan·2024, 2023, 2022Waymark Wealth Management
46-1265656Marlborough, MA·1 plan·2024, 2023, 2022Wayne Alarm Systems, INC.
04-2915588Lynn, MA·1 plan·2024, 2023, 2022, 2021, 2020Wayne B Yong DMD PC
04-3243208Boston, MA·1 plan·2024Wayne Fritze Carpentry LLC
82-5446289Spencer, MA·1 plan·2023, 2022, 2021, 2020Wayne J. Griffin Electric, INC.
04-2650465Holliston, MA·3 plans·2024, 2023, 2022, 2021, 2020Wayne Kerr Electronics INC
04-3565040Woburn, MA·1 plan·2021, 2020Wayne Roofing Systems, LLC
27-2942171Foxboro, MA·1 plan·2024, 2023, 2022Wayne'S Drains, INC.
01-0626723Burlington, MA·1 plan·2022, 2021, 2020Waypoint Adventure INC
27-3045996Lexington, MA·1 plan·2024, 2023, 2022, 2021, 2020Waypointkla, INC.
04-3568737Brookline, MA·1 plan·2024, 2023, 2022, 2021, 2020Wayside Auto Body, INC.
04-2561036Northampton, MA·1 plan·2024, 2023, 2022, 2021, 2020Wayside Glass & Mirror Co INC
04-2555853Marlborough, MA·1 plan·2024, 2023, 2022, 2021, 2020Wayside Inn Corporation
04-2105813Sudbury, MA·1 plan·2024, 2023, 2022, 2021, 2020Wayside Trans Corp
04-2849785Peabody, MA·1 plan·2024, 2023, 2022, 2021, 2020Wayside Youth And Family Support Network
04-2630450Framingham, MA·2 plans·2024, 2023, 2022, 2021, 2020Waystack & Kirby LLC
46-2772955Melrose, MA·1 plan·2024, 2023, 2022, 2021, 2020Wb Cameron LLC
46-1643766Waltham, MA·1 plan·2024Wbarrera INC
86-2843054Lynn, MA·1 plan·2024Wbc Extrusion Products, INC.
84-3196342Haverhill, MA·1 plan·2021, 2020Wc Construction, INC.
82-4047915Salem, MA·1 plan·2024, 2023, 2022, 2021Wc Research, INC.
04-3545108Woburn, MA·1 plan·2022, 2021, 2020Wcat Incorporated
04-2951470Winthrop, MA·1 plan·2024Wci Corp
04-3298194Jamaica Plain, MA·1 plan·2024, 2023, 2022, 2021, 2020Wcn Opco, LLC
88-2975325Somerville, MA·1 plan·2024, 2025, 2023, 2022Wda Design Group, INC.
04-3363251Westborough, MA·1 plan·2024, 2023, 2022, 2021, 2020Wdmd Tax Service Se401k Plan
04-3203798Hanover, MA·1 plan·2021We Are Rival Pbc
88-1131774Malden, MA·1 plan·2024We Create Goodness, LLC
80-0749318Arlington, MA·1 plan·2024, 2023, 2022, 2021We Ship It Logistics LLC
88-1134917Winchester, MA·1 plan·2024Wealth Management Advisors, LLC
04-3517220Tewksbury, MA·1 plan·2021, 2020