Rank* CategoryCompanyFoundedOwnershipSectorHeadquartersLocations in regionLocal employeesUS EmployeesSite
1LargeFutureCare1986PrivateSkilled Nursing CentersBaltimore1320242700visit ...
2LargeAgora Inc.1979Parent companyAdvertising & MarketingBaltimore9408408visit ...
3LargeT Rowe Price Group, Inc.1937PublicInvestment ManagementBaltimore236744797visit ...
4LargeAscend One1997PrivateDebt Relief ServicesColumbia1793793visit ...
5LargeMcCormick & Company, Inc.1889PublicFood / BeveragesSparks821473026
6LargeUnder Armour, Inc.1996PublicClothing, Footwear, & AccessoriesBaltimore419464000visit ...
7LargeGoodwill Industries of the Chesapeake, Inc.1919Non-profitHuman and social servicesBaltimore29476528visit ...
8LargeCatholic Charities1923Non-profitHuman and social servicesBaltimore20013652000visit ...
9LargeeBay, Inc/ PayPal1999PublicGlobal Financial Services - TechnologySan Jose, CA247510000
10LargeHumanim Inc1971Non-profitHuman and social servicesBaltimore5451451visit ...
1MidsizePraxis Engineering Technologies Inc.2002PrivateSoftware & Systems EngineeringAnnapolis Junction1215241visit ...
2MidsizeHyatt Regency-Downtown1981PublicHotelChicago, IL1220220visit ...
3MidsizeCorporate Office Properties Trust1998PublicReal Estate Investment TrustColumbia10323450visit ...
4MidsizeAdvertising.com1998PublicAdvertisingNew York, NY1197visit ...
5MidsizeThe Strata Group2006PrivateAgents / BrokersBaltimore8264265visit ...
6MidsizeHarkins Builders, Inc.1965Cooperative/MutualConstruction ManagementMarriottsville1172172visit ...
7MidsizeEnterprise1982Parent companyNon-profitColumbia1277481visit ...
8MidsizeCatholic Relief Services1943Non-profitNon-profitBaltimore1393426visit ...
9MidsizeFather Martin's Ashley1983Non-profitSubstance abuse treatmentHavre de Grace1166166visit ...
10MidsizeErnst & Young LLP1903PartnershipCertified Public Accountants & ConsultantsNew York, NY117332000visit ...
11MidsizeVision Technology Services LLC2001PrivateIT Staffing and Project Management ServicesHunt Valley8176240visit ...
12MidsizeSandy Spring Bank1868PublicConglomerateOlney10355710
13MidsizeKelly & Associates Insurance Group1976PrivateFinancial Services & InsuranceHunt Valley1340380visit ...
14MidsizeGeneral Physics Corporation1966PublicBusiness ServicesElkridge32301905visit ...
15MidsizeClifton Gunderson LLP1960PartnershipCertified Public Accountants & ConsultantsMilwaukee, WI11731800visit ...
16MidsizePricewaterhouse Coopers1850PartnershipAccountingNew York, NY126930000visit ...
17MidsizeHabitat America LLC1988PartnershipProperty ManagementAnnapolis26161350visit ...
18MidsizeHarford Community College1957PublicCollege / UniversityBel Air13291000visit ...
19MidsizeReznick Group PC1977PrivateCertified Public Accountants & ConsultantsBethesda11701000visit ...
20MidsizeJewish Community Center of Greater Baltimore1854Non-profitFitness & Recreation, Education, CampsBaltimore2255255visit ...
1SmallBTS2008PrivateWireless CommunicationColumbia25059visit ...
2SmallInfoTeK Corporation2001PartnershipGovernment ContractingHanover15055visit ...
3SmallNational Conference Services Inc1997PrivateFederal GovernmentColumbia15050visit ...
4SmallFrontline Solutions Corporation2006PrivateInformation TechnologyColumbia27780visit ...
5SmallThe Squires Group1994PrivateStaffingAnnapolis15656visit ...
6SmallGlass Jacobson1962PrivateWealth Management FirmOwings Mills15165visit ...
7SmallIMRE1993PrivateDigital, Advertising, Marketing, Public RelationsBaltimore16682visit ...
8SmallPCI Strategic Management2008PrivateInfrastructure SoftwareColumbia19696visit ...
9SmallArthur F. Bell, Jr. & Associates, LLC1974PartnershipAccountingHunt Valley, MD1115120visit ...
10SmallKatzAbosch1969PartnershipAccountingTimonium37979visit ...
11SmallFirst Financial Federal CU1953Non-profitCredit UnionTimonium99494visit ...
12SmallArchbishop Spalding High School1966Non-profitCatholic High SchoolSevern1123125visit ...
13SmallTexelTek, Inc2000PrivateFederal GovernmentAnnapolis Junction1128128visit ...
14SmallBoxTone2005PrivateEnterprise Software - Enterprise Mobile ManagementColumbia18390visit ...
15SmallM-Edge Accessories2006PrivateConsumer GoodsOdenton15555visit ...
16SmallSandler Training1983PrivateSales TrainingOwings Mills65050visit ...
17SmallNotre Dame Preparatory School1873Non-profitMiddle and High SchoolTowson1133133visit ...
18SmallIMPAQ International LLC2001PrivateConsultingColumbia15780visit ...
19SmallHertzbach & Company, P.A.1948PrivateAccountingOwings Mills1104104visit ...
20SmallFriends Research Institute Inc1955Non-profitResearchBaltimore568110visit ...
21SmallGreater Homewood Community Corporation1969Non-profitNon-profitBaltimore45050visit ...
22SmallThe Living Legacy Foundation1983Non-profitNon-profitBaltimore198100visit ...
23SmallSamuel Shapiro and Company, Inc.1915PrivateCustoms Brokers/ International Freight ForwardersBaltimore159123visit ...
24SmallMc Cormick Taylor Inc1946PrivateEngineering and PlanningPhiladelphia, PA165374
25SmallOffice Movers Inc1969PrivateMoving & StorageElkridge155380visit ...
26SmallTHE ASSOCIATED: Jewish Community Federation of Baltimore1921Non-profitCommunity planning and philanthropyBaltimore1110110visit ...
27SmallTresys Technology LLC1999PartnershipCustom Software Development & ConsultingColumbia16670visit ...
28SmallLoyola Blakefield1852Non-profitPrimary / Secondary SchoolTowson1143150visit ...
29SmallThe Harbour School1982Non-profitEducation - Primary / Secondary SchoolAnnapolis2141141visit ...
30SmallThe Bank of Glen Burnie1949PublicCommercial BankGlen Burnie8116116visit ...
31SmallBeacon Associates Inc2002PrivateSupport Services and Org EffectivenessBel Air250195
32SmallSystem Source1981PrivateInformation TechnologyHunt Valley28085visit ...
33SmallBenelogic2000PrivateSoftware as a ServiceTimonium15050visit ...
34SmallBerkshire Associates Inc1983PrivateHuman Resources ConsultingColumbia15154visit ...
35SmallLutheran World Relief1945Non-profitInternational Relief & Development OrgBaltimore16265visit ...
36SmallZynga2009PrivateInternet GamesSan Francisco, CA1582000visit ...
37SmallANCILE Solutions, Inc.2010PrivateLearning and Performance SoftwareBaltimore1100125visit ...
38SmallCARCHEX1999PrivateExtended Auto Warranty Provider-Vehicle InspectionHunt Valley15555visit ...
39SmallRadebaugh Florist/Greenhouses1924PrivateFloristTowson,17676visit ...
40SmallAero Service Group2006PrivateRestaurantMinneapolis, MN194125
41SmallCommunity Action Council of Howard County1964Non-profitHuman and social servicesColumbia, MD67375visit ...
42SmallMiss Shirley's Cafe2005PrivateRestaurantBaltimore2113113visit ...
43SmallHealth Care for the Homeless, Inc.1985Non-profitNon-profitBaltimore1143160visit ...
44SmallUnited Way of Central Maryland1925Non-profitHuman and social servicesBaltimore,47474visit ...
45SmallThe Catholic High School of Baltimore1939PrivatePrimary / Secondary SchoolBaltimore16165visit ...
*Because companies are ranked within their size categories, there may be up to three companies listed for any numeric rank.