| 1 | Large | FutureCare | 1986 | Private | Skilled Nursing Centers | Baltimore | 13 | 2024 | 2700 | visit ... |
| 2 | Large | Agora Inc. | 1979 | Parent company | Advertising & Marketing | Baltimore | 9 | 408 | 408 | visit ... |
| 3 | Large | T Rowe Price Group, Inc. | 1937 | Public | Investment Management | Baltimore | 2 | 3674 | 4797 | visit ... |
| 4 | Large | Ascend One | 1997 | Private | Debt Relief Services | Columbia | 1 | 793 | 793 | visit ... |
| 5 | Large | McCormick & Company, Inc. | 1889 | Public | Food / Beverages | Sparks | 8 | 2147 | 3026 | |
| 6 | Large | Under Armour, Inc. | 1996 | Public | Clothing, Footwear, & Accessories | Baltimore | 4 | 1946 | 4000 | visit ... |
| 7 | Large | Goodwill Industries of the Chesapeake, Inc. | 1919 | Non-profit | Human and social services | Baltimore | 29 | 476 | 528 | visit ... |
| 8 | Large | Catholic Charities | 1923 | Non-profit | Human and social services | Baltimore | 200 | 1365 | 2000 | visit ... |
| 9 | Large | eBay, Inc/ PayPal | 1999 | Public | Global Financial Services - Technology | San Jose, CA | 2 | 475 | 10000 | |
| 10 | Large | Humanim Inc | 1971 | Non-profit | Human and social services | Baltimore | 5 | 451 | 451 | visit ... |
| 1 | Midsize | Praxis Engineering Technologies Inc. | 2002 | Private | Software & Systems Engineering | Annapolis Junction | 1 | 215 | 241 | visit ... |
| 2 | Midsize | Hyatt Regency-Downtown | 1981 | Public | Hotel | Chicago, IL | 1 | 220 | 220 | visit ... |
| 3 | Midsize | Corporate Office Properties Trust | 1998 | Public | Real Estate Investment Trust | Columbia | 10 | 323 | 450 | visit ... |
| 4 | Midsize | Advertising.com | 1998 | Public | Advertising | New York, NY | 1 | 197 | | visit ... |
| 5 | Midsize | The Strata Group | 2006 | Private | Agents / Brokers | Baltimore | 8 | 264 | 265 | visit ... |
| 6 | Midsize | Harkins Builders, Inc. | 1965 | Cooperative/Mutual | Construction Management | Marriottsville | 1 | 172 | 172 | visit ... |
| 7 | Midsize | Enterprise | 1982 | Parent company | Non-profit | Columbia | 1 | 277 | 481 | visit ... |
| 8 | Midsize | Catholic Relief Services | 1943 | Non-profit | Non-profit | Baltimore | 1 | 393 | 426 | visit ... |
| 9 | Midsize | Father Martin's Ashley | 1983 | Non-profit | Substance abuse treatment | Havre de Grace | 1 | 166 | 166 | visit ... |
| 10 | Midsize | Ernst & Young LLP | 1903 | Partnership | Certified Public Accountants & Consultants | New York, NY | 1 | 173 | 32000 | visit ... |
| 11 | Midsize | Vision Technology Services LLC | 2001 | Private | IT Staffing and Project Management Services | Hunt Valley | 8 | 176 | 240 | visit ... |
| 12 | Midsize | Sandy Spring Bank | 1868 | Public | Conglomerate | Olney | 10 | 355 | 710 | |
| 13 | Midsize | Kelly & Associates Insurance Group | 1976 | Private | Financial Services & Insurance | Hunt Valley | 1 | 340 | 380 | visit ... |
| 14 | Midsize | General Physics Corporation | 1966 | Public | Business Services | Elkridge | 3 | 230 | 1905 | visit ... |
| 15 | Midsize | Clifton Gunderson LLP | 1960 | Partnership | Certified Public Accountants & Consultants | Milwaukee, WI | 1 | 173 | 1800 | visit ... |
| 16 | Midsize | Pricewaterhouse Coopers | 1850 | Partnership | Accounting | New York, NY | 1 | 269 | 30000 | visit ... |
| 17 | Midsize | Habitat America LLC | 1988 | Partnership | Property Management | Annapolis | 26 | 161 | 350 | visit ... |
| 18 | Midsize | Harford Community College | 1957 | Public | College / University | Bel Air | 1 | 329 | 1000 | visit ... |
| 19 | Midsize | Reznick Group PC | 1977 | Private | Certified Public Accountants & Consultants | Bethesda | 1 | 170 | 1000 | visit ... |
| 20 | Midsize | Jewish Community Center of Greater Baltimore | 1854 | Non-profit | Fitness & Recreation, Education, Camps | Baltimore | 2 | 255 | 255 | visit ... |
| 1 | Small | BTS | 2008 | Private | Wireless Communication | Columbia | 2 | 50 | 59 | visit ... |
| 2 | Small | InfoTeK Corporation | 2001 | Partnership | Government Contracting | Hanover | 1 | 50 | 55 | visit ... |
| 3 | Small | National Conference Services Inc | 1997 | Private | Federal Government | Columbia | 1 | 50 | 50 | visit ... |
| 4 | Small | Frontline Solutions Corporation | 2006 | Private | Information Technology | Columbia | 2 | 77 | 80 | visit ... |
| 5 | Small | The Squires Group | 1994 | Private | Staffing | Annapolis | 1 | 56 | 56 | visit ... |
| 6 | Small | Glass Jacobson | 1962 | Private | Wealth Management Firm | Owings Mills | 1 | 51 | 65 | visit ... |
| 7 | Small | IMRE | 1993 | Private | Digital, Advertising, Marketing, Public Relations | Baltimore | 1 | 66 | 82 | visit ... |
| 8 | Small | PCI Strategic Management | 2008 | Private | Infrastructure Software | Columbia | 1 | 96 | 96 | visit ... |
| 9 | Small | Arthur F. Bell, Jr. & Associates, LLC | 1974 | Partnership | Accounting | Hunt Valley, MD | 1 | 115 | 120 | visit ... |
| 10 | Small | KatzAbosch | 1969 | Partnership | Accounting | Timonium | 3 | 79 | 79 | visit ... |
| 11 | Small | First Financial Federal CU | 1953 | Non-profit | Credit Union | Timonium | 9 | 94 | 94 | visit ... |
| 12 | Small | Archbishop Spalding High School | 1966 | Non-profit | Catholic High School | Severn | 1 | 123 | 125 | visit ... |
| 13 | Small | TexelTek, Inc | 2000 | Private | Federal Government | Annapolis Junction | 1 | 128 | 128 | visit ... |
| 14 | Small | BoxTone | 2005 | Private | Enterprise Software - Enterprise Mobile Management | Columbia | 1 | 83 | 90 | visit ... |
| 15 | Small | M-Edge Accessories | 2006 | Private | Consumer Goods | Odenton | 1 | 55 | 55 | visit ... |
| 16 | Small | Sandler Training | 1983 | Private | Sales Training | Owings Mills | 6 | 50 | 50 | visit ... |
| 17 | Small | Notre Dame Preparatory School | 1873 | Non-profit | Middle and High School | Towson | 1 | 133 | 133 | visit ... |
| 18 | Small | IMPAQ International LLC | 2001 | Private | Consulting | Columbia | 1 | 57 | 80 | visit ... |
| 19 | Small | Hertzbach & Company, P.A. | 1948 | Private | Accounting | Owings Mills | 1 | 104 | 104 | visit ... |
| 20 | Small | Friends Research Institute Inc | 1955 | Non-profit | Research | Baltimore | 5 | 68 | 110 | visit ... |
| 21 | Small | Greater Homewood Community Corporation | 1969 | Non-profit | Non-profit | Baltimore | 4 | 50 | 50 | visit ... |
| 22 | Small | The Living Legacy Foundation | 1983 | Non-profit | Non-profit | Baltimore | 1 | 98 | 100 | visit ... |
| 23 | Small | Samuel Shapiro and Company, Inc. | 1915 | Private | Customs Brokers/ International Freight Forwarders | Baltimore | 1 | 59 | 123 | visit ... |
| 24 | Small | Mc Cormick Taylor Inc | 1946 | Private | Engineering and Planning | Philadelphia, PA | 1 | 65 | 374 | |
| 25 | Small | Office Movers Inc | 1969 | Private | Moving & Storage | Elkridge | 1 | 55 | 380 | visit ... |
| 26 | Small | THE ASSOCIATED: Jewish Community Federation of Baltimore | 1921 | Non-profit | Community planning and philanthropy | Baltimore | 1 | 110 | 110 | visit ... |
| 27 | Small | Tresys Technology LLC | 1999 | Partnership | Custom Software Development & Consulting | Columbia | 1 | 66 | 70 | visit ... |
| 28 | Small | Loyola Blakefield | 1852 | Non-profit | Primary / Secondary School | Towson | 1 | 143 | 150 | visit ... |
| 29 | Small | The Harbour School | 1982 | Non-profit | Education - Primary / Secondary School | Annapolis | 2 | 141 | 141 | visit ... |
| 30 | Small | The Bank of Glen Burnie | 1949 | Public | Commercial Bank | Glen Burnie | 8 | 116 | 116 | visit ... |
| 31 | Small | Beacon Associates Inc | 2002 | Private | Support Services and Org Effectiveness | Bel Air | 2 | 50 | 195 | |
| 32 | Small | System Source | 1981 | Private | Information Technology | Hunt Valley | 2 | 80 | 85 | visit ... |
| 33 | Small | Benelogic | 2000 | Private | Software as a Service | Timonium | 1 | 50 | 50 | visit ... |
| 34 | Small | Berkshire Associates Inc | 1983 | Private | Human Resources Consulting | Columbia | 1 | 51 | 54 | visit ... |
| 35 | Small | Lutheran World Relief | 1945 | Non-profit | International Relief & Development Org | Baltimore | 1 | 62 | 65 | visit ... |
| 36 | Small | Zynga | 2009 | Private | Internet Games | San Francisco, CA | 1 | 58 | 2000 | visit ... |
| 37 | Small | ANCILE Solutions, Inc. | 2010 | Private | Learning and Performance Software | Baltimore | 1 | 100 | 125 | visit ... |
| 38 | Small | CARCHEX | 1999 | Private | Extended Auto Warranty Provider-Vehicle Inspection | Hunt Valley | 1 | 55 | 55 | visit ... |
| 39 | Small | Radebaugh Florist/Greenhouses | 1924 | Private | Florist | Towson, | 1 | 76 | 76 | visit ... |
| 40 | Small | Aero Service Group | 2006 | Private | Restaurant | Minneapolis, MN | 1 | 94 | 125 | |
| 41 | Small | Community Action Council of Howard County | 1964 | Non-profit | Human and social services | Columbia, MD | 6 | 73 | 75 | visit ... |
| 42 | Small | Miss Shirley's Cafe | 2005 | Private | Restaurant | Baltimore | 2 | 113 | 113 | visit ... |
| 43 | Small | Health Care for the Homeless, Inc. | 1985 | Non-profit | Non-profit | Baltimore | 1 | 143 | 160 | visit ... |
| 44 | Small | United Way of Central Maryland | 1925 | Non-profit | Human and social services | Baltimore, | 4 | 74 | 74 | visit ... |
| 45 | Small | The Catholic High School of Baltimore | 1939 | Private | Primary / Secondary School | Baltimore | 1 | 61 | 65 | visit ... |
