National Grid USA Service Company, INC.

Brooklyn, NY, 11217

EIN 04-1663150

Plans: 36
Total participants: 313,396
Filing years: 2024, 2023, 2022, 2021, 2020
NAICS: 221100

Benefit plans on file

Year	Form	Plan #	Plan name	Participants
2024	Form 5500	001	Niagara Mohawk Pension Plan	3,627
2024	Form 5500	002	Keyspan Corporation Pension Master Trust	—
2024	Form 5500	003	National Grid USA Companies Final Average Pay Pension Plan	1,541
2024	Form 5500	004	The Keyspan Retirement Plan	2,402
2024	Form 5500	007	National Grid USA Co. Incentive Thrift Plan	17,603
2024	Form 5500	008	The Retirement Income Plan Of Keyspan Corporation	996
2024	Form 5500	009	Special Program For Early Age Retirees	0
2024	Form 5500	020	Essex County Gas Company Employee Stock Ownership	0
2024	Form 5500	501	Disability Retirement And Separation Allowance Plan	0
2024	Form 5500	502	Active Employees Healthcare	12,013
2024	Form 5500	503	Keyspan Benefit Plan For Retired East Union Employees	0
2024	Form 5500	504	Group Insurance	12,030
2024	Form 5500	509	National Grid USA Companies' Retirees Health And Life Insurance Plan I	0
2024	Form 5500	510	Keyspan Management Change Of Control Severance Plan	1,285
2024	Form 5500	511	National Grid USA Companies' Retirees Health And Life Insurance Plan Ii	0
2024	Form 5500	521	Niagara Mohawk Medical, Prescription Drug, And Life Insurance Plan For Retired Former Represented Empl	0
2024	Form 5500	538	Keyspan Benefit Plan For Active Union Employees	4,609
2024	Form 5500	539	Keyspan Benefit Plan For Active Management Employees	1,285
2024	Form 5500	543	Keyspan Benefit Plan For Retired West Union Employees	0
2024	Form 5500	544	National Grid Benefit Plan For Certain Retired Management Employees Of New York Companies	0
2024	Form 5500	546	Keyspan Union Severance Plan	4,609
2024	Form 5500	566	National Grid Benefit Plan For Certain Retired Management And Union Employees Of Massachusetts Gas Companies	0
2024	Form 5500	600	Keyspan Corporation Union Veba Master Trust	—
2024	Form 5500	601	Keyspan Corporation Non-Union Medical Veba Master Trust	—
2024	Form 5500	602	Keyspan Corporation Non-Union Life Veba Master Trust	—
2023	Form 5500	001	Niagara Mohawk Pension Plan	3,648
2023	Form 5500	002	Keyspan Corporation Pension Master Trust	—
2023	Form 5500	003	National Grid USA Companies Final Average Pay Pension Plan	1,668
2023	Form 5500	004	The Keyspan Retirement Plan	2,580
2023	Form 5500	007	National Grid USA Co. Incentive Thrift Plan	17,179
2023	Form 5500	008	The Retirement Income Plan Of Keyspan Corporation	1,054
2023	Form 5500	009	Special Program For Early Age Retirees	0
2023	Form 5500	020	Essex County Gas Company Employee Stock Ownership	0
2023	Form 5500	501	Disability Retirement And Separation Allowance Plan	0
2023	Form 5500	502	Active Employees Healthcare	11,708
2023	Form 5500	503	Keyspan Benefit Plan For Retired East Union Employees	0
2023	Form 5500	504	Group Insurance	11,717
2023	Form 5500	509	National Grid USA Companies' Retirees Health And Life Insurance Plan I	0
2023	Form 5500	510	Keyspan Management Change Of Control Severance Plan	1,300
2023	Form 5500	511	National Grid USA Companies' Retirees Health And Life Insurance Plan Ii	0
2023	Form 5500	519	Niagara Mohawk Medical, Prescription Drug, And Life Insurance Plan For Retired Former Non-Represented	0
2023	Form 5500	521	Niagara Mohawk Medical, Prescription Drug, And Life Insurance Plan For Retired Former Represented Empl	5,050
2023	Form 5500	538	Keyspan Benefit Plan For Active Union Employees	4,448
2023	Form 5500	539	Keyspan Benefit Plan For Active Management Employees	1,300
2023	Form 5500	540	Keyspan Benefit Plan For Retired Energynorth Mgmt Employees	0
2023	Form 5500	541	Keyspan Life Insurance Plan For Retired East Management Employees	0
2023	Form 5500	542	Keyspan Medical Plan For Retired East Management Employees	0
2023	Form 5500	543	Keyspan Benefit Plan For Retired West Union Employees	0
2023	Form 5500	544	National Grid Benefit Plan For Certain Retired Management Employees Of New York Companies	0
2023	Form 5500	545	Keyspan Benefit Plan For Retired Colonial Gas Management & Union Employees	0
2023	Form 5500	546	Keyspan Union Severance Plan	4,448
2023	Form 5500	562	Keyspan Benefit Plan For Retired Boston Gas Company Management Employees	0
2023	Form 5500	566	National Grid Benefit Plan For Certain Retired Management And Union Employees Of Massachusetts Gas Companies	0
2023	Form 5500	577	Keyspan Benefit Plan For Retired Essex Gas Union	0
2023	Form 5500	588	Keyspan Benefit Plan For Retired Essex Gas Mgmt	0
2023	Form 5500	600	Keyspan Corporation Union Veba Master Trust	—
2023	Form 5500	601	Keyspan Corporation Non-Union Medical Veba Master Trust	—
2023	Form 5500	602	Keyspan Corporation Non-Union Life Veba Master Trust	—
2022	Form 5500	001	Niagara Mohawk Pension Plan	3,577
2022	Form 5500	002	Keyspan Corporation Pension Master Trust	—
2022	Form 5500	003	National Grid USA Companies Final Average Pay Pension Plan	1,784
2022	Form 5500	004	The Keyspan Retirement Plan	2,744
2022	Form 5500	007	National Grid USA Co. Incentive Thrift Plan	16,248
2022	Form 5500	008	The Retirement Income Plan Of Keyspan Corporation	1,134
2022	Form 5500	009	Special Program For Early Age Retirees	0
2022	Form 5500	020	Essex County Gas Company Employee Stock Ownership	0
2022	Form 5500	501	Disability Retirement And Separation Allowance Plan	0
2022	Form 5500	502	Active Employees Healthcare	10,896
2022	Form 5500	503	Keyspan Benefit Plan For Retired East Union Employees	0
2022	Form 5500	504	Group Insurance	10,860
2022	Form 5500	509	National Grid USA Companies' Retirees Health And Life Insurance Plan I	0
2022	Form 5500	510	Keyspan Management Change Of Control Severance Plan	1,328
2022	Form 5500	511	National Grid USA Companies' Retirees Health And Life Insurance Plan Ii	0
2022	Form 5500	519	Niagara Mohawk Medical, Prescription Drug, And Life Insurance Plan For Retired Former Non-Represented	0
2022	Form 5500	521	Niagara Mohawk Medical, Prescription Drug, And Life Insurance Plan For Retired Former Represented Empl	0
2022	Form 5500	530	Keyspan Benefit Plan For Retired Energynorth Union Employees	0
2022	Form 5500	538	Keyspan Benefit Plan For Active Union Employees	4,406
2022	Form 5500	539	Keyspan Benefit Plan For Active Management Employees	1,328
2022	Form 5500	540	Keyspan Benefit Plan For Retired Energynorth Mgmt Employees	0
2022	Form 5500	541	Keyspan Life Insurance Plan For Retired East Management Employees	0
2022	Form 5500	542	Keyspan Medical Plan For Retired East Management Employees	0
2022	Form 5500	543	Keyspan Benefit Plan For Retired West Union Employees	0
2022	Form 5500	544	Keyspan Benefit Plan For Retired West Management Employees	0
2022	Form 5500	545	Keyspan Benefit Plan For Retired Colonial Gas Management & Union Employees	0
2022	Form 5500	546	Keyspan Union Severance Plan	4,406
2022	Form 5500	562	Keyspan Benefit Plan For Retired Boston Gas Company Management Employees	0
2022	Form 5500	566	Keyspan Benefit Plan For Retired Boston Gas Company Union Employees	0
2022	Form 5500	577	Keyspan Benefit Plan For Retired Essex Gas Union	0
2022	Form 5500	588	Keyspan Benefit Plan For Retired Essex Gas Mgmt	0
2022	Form 5500	600	Keyspan Corporation Union Veba Master Trust	—
2022	Form 5500	601	Keyspan Corporation Non-Union Medical Veba Master Trust	—
2022	Form 5500	602	Keyspan Corporation Non-Union Life Veba Master Trust	—
2021	Form 5500	001	Niagara Mohawk Pension Plan	3,535
2021	Form 5500	002	Keyspan Corporation Pension Master Trust	—
2021	Form 5500	003	National Grid USA Companies Final Average Pay Pension Plan	2,513
2021	Form 5500	004	The Keyspan Retirement Plan	2,946
2021	Form 5500	005	National Grid USA Co. Incentive Thrift Plan I	0
2021	Form 5500	007	National Grid USA Co. Incentive Thrift Plan	20,346
2021	Form 5500	008	The Retirement Income Plan Of Keyspan Corporation	1,216
2021	Form 5500	009	Special Program For Early Age Retirees	0
2021	Form 5500	020	Essex County Gas Company Employee Stock Ownership	0
2021	Form 5500	099	National Grid Thrift Plans Stable Value Master Trust	—
2021	Form 5500	501	Disability Retirement And Separation Allowance Plan	0
2021	Form 5500	502	Active Employees Healthcare	11,685
2021	Form 5500	503	Keyspan Benefit Plan For Retired East Union Employees	0
2021	Form 5500	504	Group Insurance	11,660
2021	Form 5500	509	National Grid USA Companies' Retirees Health And Life Insurance Plan I	0
2021	Form 5500	510	Keyspan Management Change Of Control Severance Plan	1,180
2021	Form 5500	511	National Grid USA Companies' Retirees Health And Life Insurance Plan Ii	0
2021	Form 5500	519	Niagara Mohawk Medical, Prescription Drug, And Life Insurance Plan For Retired Former Non-Represented	0
2021	Form 5500	521	Niagara Mohawk Medical, Prescription Drug, And Life Insurance Plan For Retired Former Represented Empl	0
2021	Form 5500	530	Keyspan Benefit Plan For Retired Energynorth Union Employees	0
2021	Form 5500	538	Keyspan Benefit Plan For Active Union Employees	4,529
2021	Form 5500	539	Keyspan Benefit Plan For Active Management Employees	1,180
2021	Form 5500	540	Keyspan Benefit Plan For Retired Energynorth Mgmt Employees	0
2021	Form 5500	541	Keyspan Life Insurance Plan For Retired East Management Employees	0
2021	Form 5500	542	Keyspan Medical Plan For Retired East Management Employees	0
2021	Form 5500	543	Keyspan Benefit Plan For Retired West Union Employees	0
2021	Form 5500	544	Keyspan Benefit Plan For Retired West Management Employees	0
2021	Form 5500	545	Keyspan Benefit Plan For Retired Colonial Gas Management & Union Employees	0
2021	Form 5500	546	Keyspan Union Severance Plan	4,529
2021	Form 5500	562	Keyspan Benefit Plan For Retired Boston Gas Company Management Employees	0
2021	Form 5500	566	Keyspan Benefit Plan For Retired Boston Gas Company Union Employees	0
2021	Form 5500	577	Keyspan Benefit Plan For Retired Essex Gas Union	0
2021	Form 5500	588	Keyspan Benefit Plan For Retired Essex Gas Mgmt	0
2021	Form 5500	600	Keyspan Corporation Union Veba Master Trust	—
2021	Form 5500	601	Keyspan Corporation Non-Union Medical Veba Master Trust	—
2021	Form 5500	602	Keyspan Corporation Non-Union Life Veba Master Trust	—
2020	Form 5500	001	Niagara Mohawk Pension Plan	3,612
2020	Form 5500	002	Keyspan Corporation Pension Master Trust	—
2020	Form 5500	003	National Grid USA Companies Final Average Pay Pension Plan	2,695
2020	Form 5500	004	The Keyspan Retirement Plan	3,100
2020	Form 5500	005	National Grid USA Co. Incentive Thrift Plan I	6,875
2020	Form 5500	007	National Grid USA Co. Incentive Thrift Plan Ii	9,853
2020	Form 5500	008	The Retirement Income Plan Of Keyspan Corporation	1,307
2020	Form 5500	009	Special Program For Early Age Retirees	0
2020	Form 5500	020	Essex County Gas Company Employee Stock Ownership	0
2020	Form 5500	099	National Grid Thrift Plans Stable Value Master Trust	—
2020	Form 5500	501	Disability Retirement And Separation Allowance Plan	0
2020	Form 5500	502	Active Employees Healthcare	11,229
2020	Form 5500	503	Keyspan Benefit Plan For Retired East Union Employees	0
2020	Form 5500	504	Group Insurance	11,291
2020	Form 5500	509	National Grid USA Companies' Retirees Health And Life Insurance Plan I	0
2020	Form 5500	510	Keyspan Management Change Of Control Severance Plan	1,237
2020	Form 5500	511	National Grid USA Companies' Retirees Health And Life Insurance Plan Ii	0
2020	Form 5500	519	Niagara Mohawk Medical, Prescription Drug, And Life Insurance Plan For Retired Former Non-Represented	0
2020	Form 5500	521	Niagara Mohawk Medical, Prescription Drug, And Life Insurance Plan For Retired Former Represented Empl	0
2020	Form 5500	530	Keyspan Benefit Plan For Retired Energynorth Union Employees	0
2020	Form 5500	538	Keyspan Benefit Plan For Active Union Employees	4,415
2020	Form 5500	539	Keyspan Benefit Plan For Active Management Employees	1,237
2020	Form 5500	540	Keyspan Benefit Plan For Retired Energynorth Mgmt Employees	0
2020	Form 5500	541	Keyspan Life Insurance Plan For Retired East Management Employees	0
2020	Form 5500	542	Keyspan Medical Plan For Retired East Management Employees	0
2020	Form 5500	543	Keyspan Benefit Plan For Retired West Union Employees	0
2020	Form 5500	544	Keyspan Benefit Plan For Retired West Management Employees	0
2020	Form 5500	545	Keyspan Benefit Plan For Retired Colonial Gas Management & Union Employees	0
2020	Form 5500	546	Keyspan Union Severance Plan	4,415
2020	Form 5500	562	Keyspan Benefit Plan For Retired Boston Gas Company Management Employees	0
2020	Form 5500	566	Keyspan Benefit Plan For Retired Boston Gas Company Union Employees	0
2020	Form 5500	577	Keyspan Benefit Plan For Retired Essex Gas Union	0
2020	Form 5500	588	Keyspan Benefit Plan For Retired Essex Gas Mgmt	0
2020	Form 5500	600	Keyspan Corporation Union Veba Master Trust	—
2020	Form 5500	601	Keyspan Corporation Non-Union Medical Veba Master Trust	—
2020	Form 5500	602	Keyspan Corporation Non-Union Life Veba Master Trust	—

Data shown as filed with the U.S. Department of Labor (EBSA), filing years 2020–2025; not validated by OpenERISA. View official filings for this EIN on the DOL EFAST2 search.

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National Grid USA Service Company, INC.

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