Maryland Employer EIN Lookup

Use this Maryland EIN lookup to find an employer’s Employer Identification Number from its public Form 5500 filing. 21,584 employers based in Maryland have filed a Form 5500, covering 24,294 retirement and health plans with $339.2B in reported assets. The largest are listed below with their EIN — open any employer to see the full filing.

Employers

21,584

Plans

24,294

Total assets

$339.2B

Largest employers in Maryland by EIN

Form 5500 search →


Lockheed Martin Corporation	Bethesda	21	364,180	$82.8B
Trustees of the National Electrical Benefit Fund	Rockville	3	344,100	$20.4B
Trustees of the National Electrical Annuity Plan	Rockville	1	89,789	$18.1B
Marriott International, Inc.	Bethesda	4	300,073	$11.7B
Johns Hopkins University Office of Benefits Services	Baltimore	7	51,991	$9.7B
Joint Board of Trustees, Bakery & Confectionery Union & Industry	Kensington	4	15,011	$6.6B
The Johns Hopkins University Applie D Physics Laboratory LLC JHU/APL	Laurel	5	30,649	$6.2B
Pension Committee of MLB Players Benefit Plan	Sparks	2	5,550	$5.9B
Intl Painters & Allied Trades IND. Pension Fund- Board of Trustees	Hanover	3	69,422	$5.2B
T. Rowe Price Group, Inc.	Owings Mills	7	6,820	$4.9B
Medstar Health, Inc.	Columbia	5	48,675	$4.9B
National Automatic Sprinkler Industry Pension Fund JT Board of Trustee	Landover	1	16,773	$4.8B
Savings Board of the NFL Player Second Career Savings Plan	Baltimore	1	2,825	$4.1B
Retirement Board of BERT Bell/Pete Rozelle NFL Player Retirement Plan	Baltimore	2	2,550	$4.0B
Johns Hopkins Health System Corporation	Baltimore	3	24,139	$3.5B
Sprinkler Industry Supplemental Pension Fund Joint Board of Trustees	Landover	1	28,099	$3.3B
Allegis Group, Inc.	Hanover	4	273,359	$2.7B
Sodexo, Inc.	North Bethesda	17	486,919	$2.5B
Multiple Employers	Baltimore	1	4,544	$2.2B
University of Maryland Medical System Corporation	Baltimore	9	64,690	$2.1B
Board of Trustees Seafarers Pension Plan	CAMP Springs	1	7,295	$2.1B
Howard Hughes Medical Institute	Chevy Chase	4	6,963	$2.0B
Annuity Board of the NFL Player Annuity Program	Baltimore	1	2,790	$2.0B
DLA Piper LLP (US)	Baltimore	4	6,731	$1.9B
McCormick & Company, Inc.	Hunt Valley	7	16,462	$1.6B
Carefirst, Inc.	Owings Mills	4	14,017	$1.6B
Board of Trustees, MEBA Pension Trust-Defined Benefit Plan	Baltimore	3	7,430	$1.6B
Board of Trustees, Felra & UFCW Pension	Sparks	1	0	$1.4B
W.R. Grace & Co.	Columbia	9	14,276	$1.3B
BD of Trustees for Electrical WKRS LOC No. 26 Individual Account Fund	Lanham	1	12,273	$1.3B
U a Local Union Officers & Employees Pension Fund	Annapolis	1	1,925	$1.3B
BD of TEES Heating, Piping & Refrigeration Pension Fund	Capitol Heights	1	4,817	$1.2B
Westat, Inc.	Rockville	3	11,571	$1.2B
Evapco, Inc.	Taneytown	3	5,735	$1.2B
Clark Construction Group LLC	Bethesda	3	7,811	$1.1B
Board of Trustees of the Steamship Trade Association of Baltimore,	Baltimore	1	1,722	$1.1B
Health Board	Baltimore	1	2,578	$1.1B
Board of Trustees of NECA/IBEW Family Medical Care Trust Fund	Rockville	1	37,969	$1.1B
Nasdaq, Inc.	Rockville	3	5,051	$1.0B
Electrical Workers Local No 26 Pension Trust Fund	Lanham	1	8,612	$1.0B
The Whiting-Turner Contracting Company	Towson	1	5,116	$958.0M
International Association of Machinists and Aerospace Workers	Upper Marlboro	5	1,898	$887.7M
Leidos Biomedical Research, Inc.	Frederick	4	5,543	$847.9M
National Auto Sprinkler Welfare Fund Joint Board of Trustees	Landover	2	16,509	$820.6M
Venable LLP	Baltimore	5	3,003	$766.5M
Joint Board of Trustees of the Drivers and Helpers Local No. 355	Baltimore	2	2,114	$732.0M
Ciena Corporation	Hanover	2	3,538	$718.8M
Black & Decker (U.S.) Inc.	Towson	1	721	$718.2M
Perdue Farms Inc.	Salisbury	2	31,391	$708.4M
Cap Board of the NFL Player Capital Accumulation Plan	Baltimore	1	2,759	$706.8M
Luminis Health Anne Arundel Medical Center, Inc.	Annapolis	3	12,824	$695.9M
Sinclair, Inc.	Hunt Valley	2	14,035	$672.4M
KCI Technologies, Inc.	Sparks	2	4,179	$660.1M
The Henry M. Jackson Foundation for the ADV of Military Medicine, Inc.	Bethesda	2	5,062	$616.3M
Board of Trustees - MARC Pension Plan	OXON Hill	1	2,637	$574.6M
Sinclair Broadcast Group, Inc.	Hunt Valley	3	16,545	$574.0M
Board of Trustees of M.M.&P. Individual Retirement Account Plan	Linthicum Heights	1	2,170	$523.2M
Board of Trustees - Steamfitters Local 602 Retirement Savings Plan	Capitol Heights	1	5,806	$522.0M
Johnson, Mirmiran & Thompson, Inc.	Hunt Valley	2	4,473	$493.3M
Board of Trustees Seafarers Health and Benefits Plan	CAMP Springs	1	7,645	$493.0M
Kennedy Krieger Institute	Baltimore	3	6,303	$491.8M
HOST International, Inc.	Bethesda	2	32,014	$484.6M
Greater Baltimore Medical Center, Inc.	Baltimore	7	11,882	$467.5M
Giant of Maryland LLC	Hyattsville	1	2,041	$455.1M
Spirent Communications, Inc.	Frederick	1	799	$449.7M
Loyola University Maryland	Baltimore	2	3,103	$441.4M
Tidalhealth, Inc.	Salisbury	3	14,127	$439.5M
Choice Hotels International, Inc.	North Bethesda	2	4,958	$409.4M
Meritus Medical Center, Inc.	Hagerstown	2	7,307	$397.2M
Piedmont Airlines, Inc.	Salisbury	5	28,245	$392.7M
Plumbers and Steamfitters Local 486 Severance and Annuity/401(k) Plan	Columbia	1	4,352	$391.7M
Plumbers and Steamfitters 486 Pension Fund Board of Trustees	Columbia	1	1,622	$382.3M
Under Armour, Inc.	Baltimore	3	36,511	$382.2M
The ESAB Group, Inc.	North Bethesda	4	2,448	$362.0M
Board of Trustees-HTL. & Rest. EMP. LO.25&HTL ASSN	Sparks	1	5,768	$357.4M
MRA Systems, LLC	Middle River	6	1,336	$356.9M
The United States Pharmacopeial Convention	Rockville	2	1,651	$344.2M
Board of Trustees of Masters, Mates & Pilots Pension Plan	Linthicum Heights	1	644	$328.5M
Constellium US Holdings I, LLC	Baltimore	5	7,046	$322.9M
Frederick Health, Inc.	Frederick	3	6,968	$320.9M
Southern Maryland Electric Cooperative	Hughesville	6	1,383	$314.2M
Keller Management Services, LLC	Hanover	3	6,093	$313.6M
Qiagen North American Holdings, Inc.	Germantown	1	1,153	$308.3M
Rummel, Klepper & KAHL	Baltimore	2	3,431	$306.9M
Trustees for the Electrical Welfare Trust Fund	Lanham	1	11,969	$300.4M
United Therapeutics Corporation	Silver Spring	2	2,570	$297.9M
Apex Tool Group, LLC	Sparks	3	1,416	$297.1M
University of Maryland Upper Chesapeake Health System, Inc.	BEL Air	2	5,126	$296.2M
Oak Crest Village, Inc.	Cantonsville	2	19,506	$294.7M
Legal & General America, Inc.	Frederick	14	10,277	$292.7M
Board of Trustees Seafarers Officers and Employees Pension Plan	CAMP Springs	1	399	$278.9M
EA Engineering, Science, and Technology, Inc., PBC	Hunt Valley	3	2,141	$278.3M
DAI ESOP, Inc.	Bethesda	3	2,245	$277.9M
Brown Investment Advisory & Trust Company	Baltimore	1	870	$275.8M
Joint Board of Trustees, Bakery & Confectionery Union & Industry	Kensington	1	8,329	$275.7M
B. F. SAUL Company	Bethesda	2	3,028	$263.3M
Walker & Dunlop, LLC	Bethesda	8	8,949	$260.4M
Warehouse Employees Local No. 570	Baltimore	1	836	$255.2M
Jensen Hughes, Inc.	Columbia	2	1,745	$253.9M
Cambridge Information Group, Inc.	Bethesda	1	352	$251.5M

How to find an employer’s EIN in Maryland

Every employer that sponsors a retirement or health plan files a Form 5500 that lists its nine-digit Employer Identification Number. Find a Maryland company in the table above, or run a Form 5500 search by company name to pull the filing and read the EIN directly from it.

For a broader view of plans in the state — including industry breakdowns and the largest plans by assets — see Form 5500 plans in Maryland. New to these filings? Start with What is Form 5500?

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