National Grid USA Service 401(k) and pension plans

National Grid USA Service Company, Inc., Brooklyn, NY. EIN 04-1663150. Annual reports 2009–2024. Also filed as Keyspan Corporation.

National Grid USA Service Company, Inc. has 5 active retirement plans on file. The largest is the National Grid USA Co. Incentive Thrift Plan, with 24,480 participants and $6.4 billion in assets in 2024. Vanguard has been its recordkeeper since 2013.

Active plans: 5
Participants: 47,348
Plan assets: $13.2 billion
401(k) recordkeeper: Vanguard
Plans on file: 7
Industry: Utilities

All 7 plans

Active plans first

National Grid USA Co. Incentive Thrift Plan

401(k) with ESOPActive

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 007Employer EIN 04-1663150
Participants (2024): 24,480
Net assets (2024): $6.4 billion
Recordkeeper: Vanguard2013–2024
Plan administrator: Retirement Plans Committee of National Grid USA Service Company, Inc.
2 Hanson Place, 12TH Floor
Brooklyn, NY 11217
(888) 483-2123As filed for 2024
In effect since: September 1, 1984

Plans merged into this one: National Grid USA Co. Incentive Thrift Plan I (2021).

Earlier plan names: National Grid USA Co. Incentive Thrift Plan II.

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	24,480	$6.4 billion	Vanguard
2023	24,129	$5.9 billion	Vanguard
2022	23,449	$5.2 billion	Vanguard
2021	23,514	$6.3 billion	Vanguard
2020	12,619	$2.8 billion	Vanguard
2019	12,787	$2.5 billion	Vanguard
2018	12,753	$2.2 billion	Vanguard
2017	12,652	$2.3 billion	Vanguard
2016	12,363	$2.1 billion	Vanguard
2015	12,088	$2.0 billion	Vanguard
2014	11,846	$2.0 billion	Vanguard
2013	12,306	$2.1 billion	Vanguard
2012	12,108	$1.8 billion	not listed
2011	12,233	$1.6 billion	not listed
2010	12,185	$1.6 billion	not listed
2009	13,231	$1.5 billion	not listed

The Keyspan Retirement Plan

Cash balance pensionActive

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 004Employer EIN 04-1663150
Participants (2024): 6,948
Net assets (2024): $2.2 billion
Plan administrator: Retirement Plans Committee of National Grid USA Service Company, Inc.
2 Hanson Place, 12TH Floor
Brooklyn, NY 11217
(929) 324-4729As filed for 2024
In effect since: December 1, 1950

Earlier sponsor: Keyspan Corporation (2009–2017).

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	6,948	$2.2 billion	not listed
2023	7,036	$2.3 billion	not listed
2022	7,955	$2.3 billion	not listed
2021	8,990	$3.1 billion	not listed
2020	9,220	$2.9 billion	not listed
2019	9,418	$2.6 billion	not listed
2018	9,543	$2.2 billion	not listed
2017	9,632	$2.3 billion	not listed
2016	9,518	$2.0 billion	not listed
2015	9,469	$1.9 billion	not listed
2014	9,657	$1.9 billion	not listed
2013	9,745	$1.8 billion	not listed
2012	9,783	$1.6 billion	not listed
2011	10,267	$1.5 billion	not listed
2010	10,537	$1.4 billion	not listed
2009	10,472	$1.2 billion	not listed

National Grid USA Companies Final Average Pay Pension Plan

Cash balance pensionActive

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 003Employer EIN 04-1663150
Participants (2024): 6,047
Net assets (2024): $1.9 billion
Plan administrator: Retirement Plans Committee of National Grid USA Service Company, Inc.
2 Hanson Place, 12TH Floor
Brooklyn, NY 11217
(929) 324-4729As filed for 2024
In effect since: December 30, 1943

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	6,047	$1.9 billion	not listed
2023	6,132	$1.9 billion	not listed
2022	7,749	$2.0 billion	not listed
2021	10,252	$3.0 billion	not listed
2020	10,547	$2.9 billion	not listed
2019	10,775	$2.4 billion	not listed
2018	11,030	$2.4 billion	not listed
2017	11,180	$2.3 billion	not listed
2016	11,290	$2.2 billion	not listed
2015	11,478	$2.1 billion	not listed
2014	11,684	$2.1 billion	not listed
2013	11,988	$2.0 billion	not listed
2012	12,228	$1.8 billion	not listed
2011	12,349	$1.7 billion	not listed
2010	12,661	$1.5 billion	not listed
2009	12,699	$1.4 billion	not listed

The Retirement Income Plan of Keyspan Corporation

Cash balance pensionActive

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 008Employer EIN 04-1663150
Participants (2024): 4,950
Net assets (2024): $1.6 billion
Plan administrator: Retirement Plans Committee of National Grid USA Service Company, Inc.
2 Hanson Place, 12TH Floor
Brooklyn, NY 11217
(929) 324-4729As filed for 2024
In effect since: January 1, 1937

Earlier sponsor: Keyspan Corporation (2009–2017).

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	4,950	$1.6 billion	not listed
2023	4,961	$1.6 billion	not listed
2022	7,114	$2.1 billion	not listed
2021	8,215	$2.9 billion	not listed
2020	8,380	$2.7 billion	not listed
2019	8,582	$2.4 billion	not listed
2018	8,762	$2.1 billion	not listed
2017	8,878	$2.2 billion	not listed
2016	9,022	$2.0 billion	not listed
2015	9,077	$1.9 billion	not listed
2014	9,292	$1.9 billion	not listed
2013	9,327	$1.7 billion	not listed
2012	9,584	$1.6 billion	not listed
2011	9,665	$1.4 billion	not listed
2010	9,792	$1.3 billion	not listed
2009	9,846	$1.1 billion	not listed

Niagara Mohawk Pension Plan

Cash balance pensionActive

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 001Employer EIN 04-1663150
Participants (2024): 4,923
Net assets (2024): $1.1 billion
Plan administrator: Retirement Plans Committee of National Grid USA Service Company, Inc.
2 Hanson Place, 12TH Floor
Brooklyn, NY 11217
(929) 324-4729As filed for 2024
In effect since: January 1, 1955

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	4,923	$1.1 billion	not listed
2023	4,908	$1.1 billion	not listed
2022	4,821	$1.1 billion	not listed
2021	8,458	$2.0 billion	not listed
2020	8,702	$2.1 billion	not listed
2019	8,931	$2.0 billion	not listed
2018	8,955	$1.7 billion	not listed
2017	9,160	$2.0 billion	not listed
2016	9,401	$1.8 billion	not listed
2015	9,373	$1.7 billion	not listed
2014	9,572	$1.9 billion	not listed
2013	9,562	$1.8 billion	not listed
2012	9,767	$1.8 billion	not listed
2011	9,967	$1.7 billion	not listed
2010	10,213	$1.6 billion	not listed
2009	10,508	$1.4 billion	not listed

Essex County Gas Company Employee Stock Ownership

Employee stock ownership plan (ESOP)Closed

Closed. The plan filed its final annual report for 2024, which means its assets were paid out or moved and it no longer exists.

Plan number: 020Employer EIN 04-1663150
Participants (2020): 6
Net assets (2020): $294,055
Plan administrator: Retirement Plans Committee of National Grid USA Service Company, Inc.
2 Hanson Place, 12 Floor
Brooklyn, NY 11217
(917) 636-9931As filed for 2024
In effect since: September 1, 1986

Earlier sponsor: Keyspan Corporation (2010–2017).

Year by year, 2010 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	0	$0	not listed
2023	0	$305,311	not listed
2022	0	$296,822	not listed
2021	0	$294,084	not listed
2020	6	$294,055	not listed
2019	6	$278,661	not listed
2018	6	$290,225	not listed
2017	6	$288,011	not listed
2016	6	$287,690	not listed
2015	6	$287,792	not listed
2014	6	$287,893	not listed
2013	6	$287,969	not listed
2012	6	$288,030	not listed
2011	6	$288,002	not listed
2010	6	$287,860	not listed

National Grid USA Co. Incentive Thrift Plan I

401(k) with ESOPMerged

Merged. In 2021 its assets moved to the National Grid USA Co. Incentive Thrift Plan II, sponsored by National Grid USA Service Company, Inc. (EIN 04-1663150, plan 007). Accounts moved with them, so that plan is the one to contact.

Plan number: 005Employer EIN 04-1663150
Participants (2020): 10,087
Net assets (2020): $2.9 billion
Recordkeeper: Vanguard2013–2021
Plan administrator: Retirement Plans Committee of National Grid USA Service Company, Inc.
2 Hanson Place, 12TH Floor
Brooklyn, NY 11217
(888) 483-2123As filed for 2021
In effect since: January 1, 1980

Year by year, 2009 to 2021

Plan year	Participants	Net assets	Recordkeeper
2021	0	$0	Vanguard
2020	10,087	$2.9 billion	Vanguard
2019	9,747	$2.6 billion	Vanguard
2018	9,618	$2.2 billion	Vanguard
2017	9,347	$2.3 billion	Vanguard
2016	8,674	$2.0 billion	Vanguard
2015	8,129	$1.9 billion	Vanguard
2014	8,067	$1.9 billion	Vanguard
2013	8,067	$1.8 billion	Vanguard
2012	8,119	$1.6 billion	not listed
2011	8,313	$1.5 billion	not listed
2010	8,867	$1.5 billion	not listed
2009	8,505	$1.4 billion	not listed

If you had money in one of these plans

Call Vanguard (investor.vanguard.com), which runs the National Grid USA Co. Incentive Thrift Plan. With your Social Security number and the plan name, it can tell you whether you still have a balance and, if not, where it went.
Or call the plan administrator listed on the plan below ((888) 483-2123). That number was filed for 2024; ask for the benefits or retirement plan office.
If your plan was merged, your account moved with it. Follow the link on the plan to the plan it went into, and contact that one.
If your plan closed, unclaimed balances usually went to an IRA in your name, to the PBGC's missing participants program, or to state unclaimed property. Here is how to check each one.
Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.

What these numbers are

They come from the Form 5500 annual reports each plan files with the Department of Labor, as the plan filed them. A plan year is usually a calendar year.
Participants counts everyone in the plan at year end: current employees, former employees who still have a balance or a pension coming, and retirees or beneficiaries being paid.
The recordkeeper is the service provider whose Schedule C entry says it keeps the plan's records. Small plans do not file Schedule C, so some plans show none.
We cannot see anyone's account. Only the plan or its recordkeeper can tell you your balance.

Sources: U.S. Department of Labor, Form 5500 datasets and PBGC trusteed plans. How we read them.

All 7 plans

National Grid USA Co. Incentive Thrift Plan

The Keyspan Retirement Plan

National Grid USA Companies Final Average Pay Pension Plan

The Retirement Income Plan of Keyspan Corporation

Niagara Mohawk Pension Plan

Essex County Gas Company Employee Stock Ownership

National Grid USA Co. Incentive Thrift Plan I

If you had money in one of these plans

What these numbers are

Other employers in NY