Long Island is home to a diverse array of companies across various industries. This guide highlights some of the leading organizations, including major employers like 1-800-FLOWERS.COM and Broadridge Financial Solutions, which provide thousands of jobs. Key sectors represented include technology, healthcare, financial services, and non-profits. Each company listed is a significant contributor to the local economy, offering opportunities for employment and career growth. Explore this comprehensive list to discover prominent companies that shape Long Island’s economic landscape.

CompanyIndustryEstimated # of Employees
1-800-FLOWERS.COM Inc.Internet & Direct Marketing Retail4200
A+ Technology and Security Solutions Inc.Information Technology126
Above All Store Fronts, Inc.Construction200
Adults and Children with Learning & Developmental Disabilities, Inc.Non-profit1100
Air Industries Group Inc.Aerospace & Defense350
American Portfolios Financial Services Inc.Financial Services & Insurance117
Andrea Electronics Corp.Electronic Manufacturing Services9
Appliance WorldRetail62
Applied DNA Sciences Inc.Electronic Equipment & Instruments51
Arbor Realty Trust Inc.Mortgage REITs532
Association for Mental Health and WellnessNon-profit198
Aurora Contractors, Inc.Construction53
Austin WilliamsAdvertising & Marketing50
BBS Architects, Landscape Architects, & Engineers, P.C.Services63
BioRestorative Therapies Inc.Biotechnology9
BioSpecifics Technologies Corp.Biotechnology7
Blue Ocean Wealth Solutions, a MassMutual FirmFinancial Services & Insurance140
BNB BankFinancial Services & Insurance505
Bridge Bancorp Inc.Regional Banks496
Broadridge Financial Solutions Inc.Data Processing & Outsourced Services12000
BRT Apartments Corp.Residential REITs13
Cedar Realty Trust Inc.Retail REITs75
Chembio Diagnostics Inc.Health Care Supplies648
CN Guidance & Counseling ServicesHealthcare277
Cold Spring Harbor LaboratoryNon-profit943
College H.U.N.K.S. Hauling Junk and MovingServices99
Comtech Telecommunications Corp.Communications Equipment
CPI Aerostructures Inc.Aerospace & Defense
CVD Equipment Corp.Semiconductor Equipment
Darby Dental Supply, LLCServices174
DUKAL CorporationManufacturing65
Empire Bancorp Inc.Regional Banks
Engel BurmanReal Estate71
Esquire Financial Holdings Inc.Regional Banks
EXIT Realty AchieveReal Estate173
Family & Children's AssociationNon-profit218
Family Service League. INC.Non-profit815
First of Long Island Corp.Regional Banks
Flushing Financial Corp.Regional Banks
Fonar Corp.Health Care Equipment
Frequency Electronics Inc.Electronic Equipment & Instruments
Future Tech EnterpriseInformation Technology110
Getty Realty Corp.Retail REITs
Grassi Advisors & AccountantsFinancial Services & Insurance211
Greenman-Pedersen, Inc.Construction130
H2M architects + engineersServices348
Hain Celestial Group Inc.Packaged Foods & Meats
HealthCare Partners, MSOHealthcare240
Henry Schein Inc.Health Care Distributors
Intellicheck Inc.Electronic Equipment & Instruments
Janel Corp.Air Freight & Logistics
Janover LLCFinancial Services & Insurance99
KidsFirst Evaluation and Advocacy CenterEducation90
Kimco Realty CorporationReal Estate226
Lakeland Industries Inc.Apparel, Accessories & Luxury Goods
Lewis Johs Avallone Aviles, LLPServices145
Lifetime Brands Inc.Housewares & Specialties
Long Blockchain Corp.Soft Drinks
Long Island Select Healthcare. Inc.Healthcare113
Louis K McLean Associates Engineers & Surveyors, PCServices85
Manhattan Bridge CapitalMortgage REITs
Marcum LLPFinancial Services & Insurance187
McIntyre, Donohue, Accardi, Salmonson, and Riordan, LLPServices54
Meadowbrook Financial Mortgage Bankers Corp.Financial Services & Insurance125
Mercy Haven, Inc.Non-profit77
Misonix Inc.Health Care Equipment
Mobiquity Technologies Inc.Advertising
MSC Industrial Direct Co Inc.Trading Companies & Distributors
MSH Inc. dba Plesser's AppliancesRetail50
Napco Security Technologies Inc.Electronic Equipment & Instruments
Nathan's Famous Inc.Restaurants
National Business Capital & ServicesFinancial Services & Insurance87
National Consumer PanelServices75
Network Solutions and Technology (NST)Information Technology54
New VitalityRetail59
New York Cancer & Blood SpecialistsHealthcare875
New York Community Bancorp Inc.Thrifts & Mortgage Finance
New York Life - Long IslandFinancial Services & Insurance779
Newtek Business Services Corp.Asset Management & Custody Banks
NRC Group Holdings Corp.Environmental & Facilities Services
NY State SolarConstruction86
One Liberty Properties Inc.Diversified REITs
Options for Community Living, Inc.Healthcare218
Orbit International Corp.Electrical Components & Equipment
P & F Industries Inc.Household Appliances
P.W. Grosser ConsultingServices50
Park Electrochemical Corp.Electronic Manufacturing Services
Piping Rock Health Products, LLCManufacturing572
Power Home RemodelingConstruction217
Power REITSpecialized REITs
Prepaid Ventures, Ltd.Financial Services & Insurance50
Research Frontiers Inc.Electronic Equipment & Instruments
Reverse Mortgage Funding LLCFinancial Services & Insurance68
SAIL, Inc.Non-profit132
Scientific Industries Inc.Health Care Equipment
Sino-Global Shipping America Ltd.Marine Ports & Services
Spellman High Voltage Electronics Corp.Manufacturing315
Standard Diversified Inc.Tobacco
Stasi Brothers Asphalt & MasonryConstruction70
Stony Brook Southampton HospitalHealthcare1330
SUNation Solar SystemsUtilities & Telecommunications174
Surge Components Inc.Technology Distributors
Systemax Inc.Trading Companies & Distributors
Total Technology SolutionsInformation Technology50
Transervice Logistics Inc.Distribution, Logistics, & Freight61
TSR Inc.IT Consulting & Other Services
Tweezerman InternationalManufacturing115
United Northern Mortgage Bankers LimitedFinancial Services & Insurance108
United States Luggage CompanyManufacturing65
United-Guardian Inc.Personal Products
Vaso CorporationHealth Care Equipment
Veeco Instruments Inc.Semiconductor Equipment
Verint Systems Inc.Application Software
VHB Engineering, Surveying, Landscape Architecture and Geology, P.C.Services62
Vicon Industries Inc.Electronic Equipment & Instruments
Volt Information Sciences Inc.Human Resource & Employment Services
WellLife Network IncNon-profit550
Yardi Systems, Inc.Information Technology149
Zebra Technologies CorporationManufacturing946

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Author: Editor

The editing staff at Long Island Work is dedicated to bringing readers the latest and most relevant information about the top companies and job opportunities in the region. With a deep understanding of Long Island's economic landscape, our team is passionate about helping both job seekers and employers connect and thrive. Our editors bring years of experience in journalism, local business knowledge, and a commitment to excellence, ensuring that the content we provide is both informative and engaging. Discover more about our team and mission at Long Island Work.