Form 5500 Search

Maryland Employer EIN Lookup

Use this MarylandEIN lookup to find an employer’s Employer Identification Number from its public Form 5500 filing. 22,938 employers based in Maryland have filed a Form 5500, covering 25,754 retirement and health plans with $354.4B in reported assets. The largest are listed below with their EIN — open any employer to see the full filing.

Employers
22,938
Plans
25,754
Total assets
$354.4B

Largest employers in Maryland by EIN

Form 5500 search →
EmployerEINCityPlansParticipantsAssets
Lockheed Martin Corporation52-1893632Bethesda21364,544$87.2B
Trustees of the National Electrical Benefit Fund53-0181657Rockville3379,833$22.6B
Trustees of the National Electrical Annuity Plan52-6132372Rockville196,855$20.7B
Marriott International, Inc.52-2055918Bethesda4300,073$11.7B
Johns Hopkins University Office of Benefits Services52-0595110Baltimore751,558$9.8B
Joint Board of Trustees, Bakery & Confectionery Union & Industry52-6118572Kensington415,017$6.6B
The Johns Hopkins University Applie D Physics Laboratory LLC JHU/APL52-0595111Laurel530,649$6.2B
Pension Committee of MLB Players Benefit Plan51-0185287Sparks25,550$5.9B
Medstar Health, Inc.52-2087445Columbia550,374$5.6B
T. Rowe Price Group, Inc.52-2264646Owings Mills712,860$5.6B
Intl Painters & Allied Trades IND. Pension Fund- Board of Trustees52-6073909Hanover369,417$5.2B
National Automatic Sprinkler Industry Pension Fund JT Board of Trustee52-6054620Landover116,773$4.8B
Savings Board of the NFL Player Second Career Savings Plan52-1852902Baltimore12,825$4.1B
Retirement Board of BERT Bell/Pete Rozelle NFL Player Retirement Plan13-6043636Baltimore22,552$4.0B
Johns Hopkins Health System Corporation52-1465301Baltimore323,728$3.6B
Sprinkler Industry Supplemental Pension Fund Joint Board of Trustees14-1595069Landover128,099$3.3B
Allegis Group, Inc.52-1304931Hanover4273,359$2.7B
Sodexo, Inc.52-0936594North Bethesda17525,570$2.5B
University of Maryland Medical System Corporation52-1362793Baltimore1065,998$2.3B
Multiple Employers52-1061906Baltimore14,544$2.2B
Board of Trustees Seafarers Pension Plan13-6100329CAMP Springs17,295$2.1B
Howard Hughes Medical Institute59-0735717Chevy Chase46,969$2.0B
Annuity Board of the NFL Player Annuity Program26-0181656Baltimore12,790$2.0B
DLA Piper LLP (US)52-0616490Baltimore46,769$1.9B
McCormick & Company, Inc.52-0408290Hunt Valley717,099$1.7B
Carefirst, Inc.52-2069215Owings Mills414,017$1.6B
Board of Trustees, MEBA Pension Trust-Defined Benefit Plan51-6029896Baltimore37,430$1.6B
Board of Trustees, Felra & UFCW Pension52-6128473Sparks10$1.4B
BD of TEES Heating, Piping & Refrigeration Pension Fund52-1058013Capitol Heights15,962$1.4B
W.R. Grace & Co.65-0773649Columbia914,276$1.3B
BD of Trustees for Electrical WKRS LOC No. 26 Individual Account Fund52-1250801Lanham112,273$1.3B
U a Local Union Officers & Employees Pension Fund52-1178032Annapolis11,925$1.3B
Board of Trustees of NECA/IBEW Family Medical Care Trust Fund75-3198514Rockville140,675$1.3B
The Whiting-Turner Contracting Company92-3641585Towson15,591$1.2B
Westat, Inc.84-0529566Rockville311,022$1.2B
Evapco, Inc.52-1059673Taneytown35,819$1.2B
Board of Trustees of the Steamship Trade Association of Baltimore,52-6036829Baltimore11,621$1.1B
Clark Construction Group LLC56-2447399Bethesda38,098$1.1B
Health Board11-3805568Baltimore12,578$1.1B
Nasdaq, Inc.52-1165937Rockville35,051$1.0B
Electrical Workers Local No 26 Pension Trust Fund52-6117919Lanham18,612$1.0B
Leidos Biomedical Research, Inc.33-0653185Frederick45,128$893.8M
International Association of Machinists and Aerospace Workers53-6001417Upper Marlboro51,898$887.7M
National Auto Sprinkler Welfare Fund Joint Board of Trustees53-0215881Landover216,509$820.6M
Venable LLP52-0517250Baltimore52,870$766.5M
Sinclair, Inc.92-1076143Hunt Valley213,801$748.2M
Joint Board of Trustees of the Drivers and Helpers Local No. 35552-6043608Baltimore22,114$732.0M
Ciena Corporation23-2725311Hanover23,461$718.8M
Black & Decker (U.S.) Inc.52-1127357Towson1721$718.2M
KCI Technologies, Inc.52-1604386Sparks24,383$716.4M
Perdue Farms Inc.52-0888853Salisbury237,392$708.4M
Cap Board of the NFL Player Capital Accumulation Plan47-2135215Baltimore12,759$706.8M
Luminis Health Anne Arundel Medical Center, Inc.52-1169362Annapolis312,824$695.9M
The Henry M. Jackson Foundation for the ADV of Military Medicine, Inc.52-1317896Bethesda24,958$616.3M
Board of Trustees - MARC Pension Plan52-6051388OXON Hill12,637$574.6M
Sinclair Broadcast Group, Inc.52-1494660Hunt Valley316,536$574.2M
Board of Trustees of M.M.&P. Individual Retirement Account Plan13-3021839Linthicum Heights12,170$523.2M
Board of Trustees - Steamfitters Local 602 Retirement Savings Plan52-2187219Capitol Heights15,806$522.0M
Greater Baltimore Medical Center, Inc.52-6049658Baltimore712,199$498.6M
Johnson, Mirmiran & Thompson, Inc.52-0963531Hunt Valley24,473$493.3M
Board of Trustees Seafarers Health and Benefits Plan13-5557534CAMP Springs17,645$493.0M
Kennedy Krieger Institute52-0607971Baltimore36,303$491.8M
HOST International, Inc.52-1242334Bethesda232,014$484.6M
Giant of Maryland LLC52-2179343Hyattsville12,041$455.1M
Loyola University Maryland52-0591623Baltimore23,103$441.4M
Tidalhealth, Inc.52-2132761Salisbury315,088$439.5M
Choice Hotels International, Inc.52-1209792North Bethesda24,958$409.4M
Meritus Medical Center, Inc.52-0607949Hagerstown27,163$397.2M
Piedmont Airlines, Inc.52-0970090Salisbury528,245$392.7M
Plumbers and Steamfitters Local 486 Severance and Annuity/401(k) Plan52-1190205Columbia14,352$391.7M
Plumbers and Steamfitters 486 Pension Fund Board of Trustees52-6124449Columbia11,622$382.3M
Under Armour, Inc.52-1990078Baltimore336,511$382.2M
The ESAB Group, Inc.84-0966648North Bethesda42,352$362.0M
United Therapeutics Corporation52-1984749Silver Spring22,772$360.8M
Board of Trustees-HTL. & Rest. EMP. LO.25&HTL ASSN52-6051390Sparks15,768$357.4M
MRA Systems, LLC52-2063267Middle River61,336$356.9M
Keller Management Services, LLC52-1691496Hanover36,110$356.3M
The United States Pharmacopeial Convention13-1656692Rockville21,651$344.2M
Qiagen North American Holdings, Inc.95-4801772Germantown11,109$338.6M
Board of Trustees of Masters, Mates & Pilots Pension Plan13-6372630Linthicum Heights1644$328.5M
Constellium US Holdings I, LLC27-4126819Baltimore57,046$322.9M
Frederick Health, Inc.52-0591612Frederick36,318$320.9M
Brown Investment Advisory & Trust Company52-1811121Baltimore1923$320.4M
Southern Maryland Electric Cooperative52-0492367Hughesville61,388$314.2M
Walker & Dunlop, LLC80-0312140Bethesda89,005$311.3M
Rummel, Klepper & KAHL52-0599112Baltimore23,431$306.9M
Trustees for the Electrical Welfare Trust Fund52-6038507Lanham111,969$300.4M
Apex Tool Group, LLC27-1996059Sparks31,416$297.1M
University of Maryland Upper Chesapeake Health System, Inc.52-1398513BEL Air25,126$296.2M
Oak Crest Village, Inc.52-1874053Cantonsville219,782$294.7M
Legal & General America, Inc.52-1236150Frederick1410,277$292.7M
Board of Trustees Seafarers Officers and Employees Pension Plan11-6138267CAMP Springs1399$278.9M
EA Engineering, Science, and Technology, Inc., PBC52-0991911Hunt Valley32,200$278.3M
Joint Board of Trustees, Bakery & Confectionery Union & Industry53-0227042Kensington18,329$275.7M
Inovalon, Inc.71-1017974Bowie23,356$269.8M
B. F. SAUL Company53-0140155Bethesda23,056$263.3M
Warehouse Employees Local No. 57052-6048848Baltimore1836$255.2M
Jensen Hughes, Inc.52-1199515Columbia21,745$253.9M
Cambridge Information Group, Inc.52-1088476Bethesda1352$251.5M
Whiteford, Taylor & Preston, L.L.P.52-0619214Baltimore4827$249.3M

EINs are drawn from the Form 5500 the employer filed with the U.S. Department of Labor. An employer’s EIN is the same across all of its plans — open a filing to confirm the sponsor name and address before relying on it.

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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