Form 5500 Plan Sponsors in Illinois
Page 281 of 425 · 42,451 sponsors (2020–2025).
Oak Design & Construction, INC.
36-3503859Oak Park, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Engineering, INC.
36-2659805Batavia, IL·2 plans·2024, 2023, 2022, 2021, 2020Oak Family Advisors LLC
36-4590213Chicago, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Financial, INC
35-2481567Roselle, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Forest Animal Clinic, LLC
27-4097835Oak Forest, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Hill Builders & Developers, INC.
36-4115945Naperville, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Hill Contractors, LLC
20-2268765Ewing, IL·2 plans·2024, 2025, 2023, 2022, 2021, 2020Oak Knoll Financial Strategies, LLC
90-0660605Wilmington, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Lawn Marketing International
20-8542528Burr Ridge, IL·1 plan·2024, 2023, 2022Oak Lawn Toyota Company, INC.
36-3135915Oak Lawn, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Leaf Academy, LLC
45-2438072Oak Park, IL·1 plan·2024, 2023, 2022Oak Med INC.
93-4044761Glen Ellyn, IL·1 plan·2024Oak Mill Bakery
36-3615174Des Plaines, IL·1 plan·2024, 2025, 2023, 2022, 2021, 2020Oak Mill Management INC
46-5123779Niles, IL·1 plan·2024, 2023Oak Mill Medical Associates, S.C.
36-4391881Niles, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Paper Products Co., INC.
95-2052560Addison, IL·2 plans·2024, 2023, 2022, 2021, 2020Oak Park Arms Hotel
36-2984788Oak Park, IL·1 plan·2024, 2023, 2022, 2021Oak Park Behavioral Medicine LLC
45-5603137Oak Park, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Park Chiropractic
87-0803196Oak Park, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Park Economic Development Corp.
36-2788088Oak Park, IL·1 plan·2023, 2022, 2021, 2020Oak Park Eye Center, S.C.
36-2670634Elmwood Park, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Park Kidney Center LLC
36-4485174Oak Park, IL·1 plan·2024, 2023Oak Park Pediatrics Ltd.
27-3676211Oak Park, IL·1 plan·2024, 2025, 2023, 2022, 2021, 2020Oak Park Residence Corporation
36-2666771Oak Park, IL·1 plan·2024, 2025, 2023, 2022, 2021, 2020Oak Park River Forest Community Foundation
36-4150724Oak Park, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Park River Forest Day Nurs
36-2182082Oak Park, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Residential Partners, LLC
27-0938927Deerfield, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Ridge Investments, LLC
36-4142388Chicago, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Ridge Products, LLC
20-1355335Mchenry, IL·2 plans·2024, 2023, 2022, 2021, 2020Oak Street Health LLC
46-2605165Chicago, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak Street Health Mso, LLC
46-2055165Chicago, IL·1 plan·2024Oak Street Health Mso, LLC
46-2056165Chicago, IL·1 plan·2023, 2022, 2021, 2020Oak Street Real Estate Capital, LLC
45-3752628Chicago, IL·1 plan·2021, 2020Oak Street Salon
27-3009036Mahomet, IL·1 plan·2024, 2025, 2023, 2022, 2021, 2020Oak Street Wholesalers, INC.
26-1779123Peoria, IL·1 plan·2024Oak Tree Development Center, INC.
20-3847714Chicago, IL·1 plan·2024, 2023, 2022, 2021, 2020Oak-Leyden Developmental Services, INC.
23-7380622Oak Park, IL·1 plan·2024, 2023, 2022, 2021, 2020Oakbrook Advanced Aesthetics INC
82-3290818Oakbrook Terrace, IL·1 plan·2023, 2022Oakbrook Cornerstone LLC
99-4683097Oakbrook Terrace, IL·1 plan·2024Oakbrook Endodontic Associates, Ltd.
36-2774343Oak Brook, IL·1 plan·2022, 2021, 2020Oakbrook Enterprises LLC
32-0087001Oakbrook Terrace, IL·1 plan·2023, 2022, 2021, 2020Oakbrook Investments, LLC
36-4211742Glen Ellyn, IL·1 plan·2020Oakbrook Solutions, LLC
93-1547847Chicago, IL·1 plan·2024, 2023Oakbrook Surgical Centre, INC
36-3317971Oak Brook, IL·1 plan·2024, 2023, 2022, 2021, 2020Oakcrest Capital, LLC
46-1467209Oakbrook Terrace, IL·1 plan·2024, 2023Oakdale Veterinary Center
46-3168171Canton, IL·2 plans·2022, 2021, 2020Oakheart, Center For Counseling, Mediation, And Consultation, PLLC
82-5498358Sycamore, IL·1 plan·2024, 2023Oakland Dental Care, P.C.
26-4250048Carbondale, IL·1 plan·2024, 2023, 2022, 2021, 2020Oakland Industries, L.P. DBA E-T-A Engineering Technology
36-2965792Mt Prospect, IL·1 plan·2024, 2023, 2022, 2021, 2020Oakland Manager LLC
81-0863510Edgewood, IL·3 plans·2024, 2023, 2022, 2021, 2020Oaklane Insurance Agency INC
36-4191379Mundelein, IL·1 plan·2024, 2025, 2023, 2022, 2021, 2020Oakleaf Treeworks INC.
30-0778902Northbrook, IL·1 plan·2024, 2025, 2023, 2022, 2021, 2020Oakley Bear Company
92-3633110South Elgin, IL·1 plan·2024Oakley Construction Company, INC.
36-3402177Chicago, IL·1 plan·2024, 2023, 2022, 2021, 2020Oakley Home Builders, INC.
26-0082658Downers Grove, IL·2 plans·2024, 2023, 2022, 2021, 2020Oakley Industrial Machinery In
27-2990689Elk Grove Village, IL·1 plan·2024, 2025, 2023, 2022, 2021, 2020Oakley Steel Products Company
36-1570465Bellwood, IL·1 plan·2020Oaklund Medical Group
81-0610860Lake In The Hills, IL·1 plan·2024, 2023, 2022, 2021, 2020Oakmill Pharmacy, LLC
20-8291151Niles, IL·1 plan·2022, 2021, 2020Oakridge Properties Limited Retirement Plan
36-3766370Algonquin, IL·1 plan·2022, 2021, 2020Oakton Architectural Glass, LLC
47-3719822Wood Dale, IL·1 plan·2024, 2025, 2023, 2022Oakton Health Center, Sc
36-4106972Skokie, IL·1 plan·2024, 2023, 2022, 2021, 2020Oaktree Academy LLC
83-1800316Chicago, IL·1 plan·2024, 2023Oakwood Electric & Generator, INC.
36-4112562Westmont, IL·1 plan·2024Oakwood School District 76
36-7244951Fithian, IL·1 plan·2022, 2021, 2020Oam2, LLC
36-4121688Buffalo Grove, IL·1 plan·2024, 2023, 2022, 2021, 2020Oar Management, INC.
27-3994615Palos Heights, IL·1 plan·2024, 2023, 2022, 2021, 2020Oars And Alps, LLC
47-4732467Chicago, IL·1 plan·2024, 2023, 2022Oasis Family Media LLC
36-4098922Carol Stream, IL·1 plan·2023, 2022, 2021, 2020Oasis Heating And Cooling INC. Of Il
20-3739768Chicago, IL·1 plan·2024, 2023, 2022, 2021, 2020Oasis Hospice & Palliative Care, INC.
46-4112317Flossmoor, IL·1 plan·2024, 2023, 2022, 2021, 2020Oasis Investments, LLC - Disaster Management
81-1045609Troy, IL·1 plan·2024, 2023, 2022Oasis Legal Finance Operating Company, LLC
20-1368823Rosemont, IL·1 plan·2024, 2023, 2022, 2021, 2020Oasis Mental Health PC.
46-2250585Naperville, IL·1 plan·2024, 2023, 2021Oasis Productions
14-1881915Chicago, IL·1 plan·2024Oasis Sales Corp.
36-2832764Schaumburg, IL·1 plan·2023, 2022, 2021, 2020Oasis Women'S Center
37-1017792Alton, IL·2 plans·2024, 2023, 2022, 2021, 2020Oates Associates, INC.
37-1256935Collinsville, IL·2 plans·2024, 2023, 2022, 2021, 2020Oates Dental
36-3026094Rockford, IL·1 plan·2024, 2023, 2022, 2021, 2020Ob Golf LLC
85-2020210Downers Grove, IL·1 plan·2024Ob-Gyne Associates Of Lake Forest, Ltd.
36-2734017Lake Forest, IL·1 plan·2024, 2023, 2022, 2021, 2020Ob-Gyne Associates Of Libertyville, S.C.
36-3130217Libertyville, IL·1 plan·2024, 2023, 2022, 2021, 2020Ob/Gyn Health Associates, S.C.
36-4120710Orland Park, IL·1 plan·2024, 2023, 2022, 2021, 2020Obbligato Business Partners
20-5051820Montgomery, IL·1 plan·2024, 2023, 2022, 2021, 2020Obeid Dental INC.
27-3728530Chicago, IL·1 plan·2024, 2023, 2022, 2021, 2020Oberkfell Enterprises Corp.
99-4865441St. Jacob, IL·1 plan·2024Oberlander Electric Company
37-0739743Mossville, IL·2 plans·2024, 2023, 2022, 2021, 2020Obermeier Truck Service, LLC
26-4285920Okawville, IL·1 plan·2024, 2023, 2022Oberoi, Sunil And Archana
20-1598024Peoria, IL·1 plan·2024, 2023, 2022Oberweis Asset Management, INC.
36-3668290Lisle, IL·1 plan·2024, 2023, 2022, 2021, 2020Oberweis Dairy, INC.
36-2267516North Aurora, IL·2 plans·2023, 2022, 2021, 2020Obiter Research LLC
37-1416348Champaign, IL·1 plan·2024, 2023, 2022, 2021, 2020Objective Arts, LLC
38-4099235Chicago, IL·1 plan·2024, 2023, 2022, 2021, 2020Objective Marketing, INC.
36-3093035Lake Forest, IL·1 plan·2024, 2023, 2022, 2021, 2020Objective Paradigm LLC
36-4323581Chicago, IL·1 plan·2023Objective Paradigm LLC
36-4323582Chicago, IL·2 plans·2024, 2023, 2022, 2021, 2020Obrien & Associates, INC.
36-2435881Lake Bluff, IL·1 plan·2023, 2022, 2021, 2020Obrien Corporation
36-3591531Saint Charles, IL·1 plan·2024, 2023, 2022, 2021, 2020Obrien Harris LLC
27-0995108Chicago, IL·1 plan·2024Obrien Steel Service Co.
37-0991960Peoria, IL·2 plans·2024, 2025, 2023, 2022, 2021, 2020