Official Form 5500 data
Utilities 401(k) plans
Explore employers in Utilities using their latest selected public retirement-plan filings.
How to read this page
Industry is derived from the business classification reported in the filing. Employer contribution and expense figures are filing-level context, not current plan terms.
Employers393
Reported plan assets$184.5B
Active participants640.7K
Average employer money per active participant$6,833
Largest reported plans
Companies ranked by plan assets
The list shows up to 50 employers, ordered by assets in each plan’s latest selected public filing.
01DUKE ENERGY CORPORATIONCHARLOTTE, NCPlan assets$11.3B→02SOUTHERN COMPANY SERVICES, INC.ATLANTA, GAPlan assets$9.3B→03NATIONAL GRID USA SERVICE COMPANY, INC.BROOKLYN, NYPlan assets$6.4B→04SOUTHERN CALIFORNIA EDISON COMPANYROSEMEAD, CAPlan assets$6.4B→05CONSOLIDATED EDISON COMPANY OF NEW YORK, INC.NEW YORK, NYPlan assets$6.4B→06EXELON CORPORATIONCHICAGO, ILPlan assets$6.3B→07CONSTELLATION ENERGY GENERATION LLCKENNETT SQUARE, PAPlan assets$6B→08NEXTERA ENERGY, INC.JUNO BEACH, FLPlan assets$5.5B→09AMERICAN ELECTRIC POWER SERVICE CORPORATIONCOLUMBUS, OHPlan assets$5.2B→10PG&E CORPORATIONOAKLAND, CAPlan assets$5B→11DOMINION ENERGY, INC.RICHMOND, VAPlan assets$4.4B→12ENTERGY CORPORATIONNEW ORLEANS, LAPlan assets$4.4B→13EVERSOURCE ENERGY SERVICE COMPANYHARTFORD, CTPlan assets$4B→14SIEMENS ENERGY, INC.ORLANDO, FLPlan assets$4B→15FIRSTENERGY CORP.AKRON, OHPlan assets$3.9B→16AMEREN CORPORATIONST. LOUIS, MOPlan assets$3.2B→17XCEL ENERGY INCMINNEAPOLIS, MNPlan assets$3.1B→18SOUTHERN CALIFORNIA GAS COMPANYSAN DIEGO, CAPlan assets$3.1B→19CENTERPOINT ENERGY, INC.HOUSTON, TXPlan assets$3.1B→20KINDER MORGAN, INC.HOUSTON, TXPlan assets$2.9B→21CONSUMERS ENERGY COMPANYJACKSON, MIPlan assets$2.9B→22AVANGRID MANAGEMENT COMPANY, LLCORANGE, CTPlan assets$2.6B→23NRG AFFILIATE SERVICES, INCPRINCETON, NJPlan assets$2.3B→24SAN DIEGO GAS & ELECTRIC COMPANYSAN DIEGO, CAPlan assets$2.1B→25NISOURCE INCMERRILLVILLE, INPlan assets$2B→26PACIFICORPPORTLAND, ORPlan assets$1.8B→27WEC ENERGY GROUP, INC.MILWAUKEE, WIPlan assets$1.7B→28EVERGY, INC.KANSAS CITY, MOPlan assets$1.5B→29ALLIANT ENERGY CORPORATE SERVICES, INC.MADISON, WIPlan assets$1.4B→30AMERICAN WATER WORKS COMPANY, INC.CAMDEN, NJPlan assets$1.4B→31PUGET SOUND ENERGY, INC.BELLEVUE, WAPlan assets$1.3B→32CLEAN HARBORS ENVIROMENTAL SERVICES, INC.DRIVE NORWELL, MAPlan assets$1.2B→33PORTLAND GENERAL ELECTRIC COMPANYPORTLAND, ORPlan assets$1.2B→34ATMOS ENERGY CORPORATIONDALLAS, TXPlan assets$1.1B→35NV ENERGY, INC.RENO, NVPlan assets$1.1B→36MIDAMERICAN ENERGY COMPANYDES MOINES, IAPlan assets$1.1B→37VEOLIA NORTH AMERICA, LLCBOSTON, MAPlan assets$1B→38LG&E AND KU ENERGY LLCLOUISVILLE, KYPlan assets$1B→39ONE GAS, INC.TULSA, OKPlan assets$967.9M→40DTE ENERGY CORPORATE SERVICES, LLCDETROIT, MIPlan assets$963.3M→41COVANTA PROJECTS, LLCMORRISTOWN, NJPlan assets$947.7M→42IDAHO POWER COMPANYBOISE, IDPlan assets$889.9M→43AVISTA CORPORATIONSPOKANE, WAPlan assets$843.5M→44PNM RESOURCES, INC.ALBUQUERQUE, NMPlan assets$826.6M→45BLACK HILLS CORPORATIONRAPID CITY, SDPlan assets$811.2M→46MDU RESOURCES GROUP, INC.BISMARCK, NDPlan assets$775.6M→47CALPINE CORPORATIONHOUSTON, TXPlan assets$758.1M→48THE AES CORPORATIONARLINGTON, VAPlan assets$728.2M→49SPIRE SERVICES INC.ST. LOUIS, MOPlan assets$688.6M→50ENERGY HARBOR CORP.AKRON, OHPlan assets$681.6M→
Source: U.S. Department of Labor Form 5500 public filings. Figures describe retirement plans, not an employer’s total workforce or current benefit promise.