General business services
5,758 companies
SIC 7389
Companies in Baltimore
Behind every street in Baltimore sits a business. 133,990 of them, to be exact, all registered in the United States business register. The biggest single industry is general business services with 5,758 companies, roughly 4% of everything that does business in the city.
133,990 businesses indexed
Constellation Energy CORPORATIONConstellation Energy CORPORATION
| Company Name | Country | City | Address 1 | State/Province | Postal Code | Website | Founding Year | Yearly Revenue in U.S. Dollars | Employees Total | Business Legal Type - Description | Number of Companies in Group | Company Registration Number | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Constellation Energy CORPORATION | USA | Baltimore | 1310 Point St | Baltimore City | 21231-3380 | exeloncorp.***** | 2021 | $25,533,000,000 | 15,339 | Corporation | 742 | 0007305437 |
| 2 | Constellation Energy Generation, LLC | USA | Baltimore | 1310 Point St | Baltimore City | 21231-3380 | constellation.***** | 2000 | $25,533,000,000 | 15,339 | Corporation | 742 | 0002979826 |
| 3 | The Whiting-Turner Contracting Company | USA | Baltimore | 300 E Joppa Rd | Baltimore City | 21286-3047 | whiting-turner.***** | 1934 | $12,522,114,874 | 4,560 | Corporation | 52 | D00244731 |
| 4 | The Johns Hopkins Health System CORPORATION | USA | Baltimore | 600 N Wolfe St | Baltimore City | 21287-0005 | hopkinsmedicine.***** | 1986 | $9,639,119,000 | 13,000 | Corporation | 112 | 521465301 |
| 5 | The Hopkins Johns University | USA | Baltimore | 3400 N Charles St | Baltimore City | 21218-2680 | jobs.***** | 1867 | $9,547,200,000 | 37,600 | Corporation | 232 | D00089169 |
| 6 | Carefirst, INC. | USA | Baltimore | 1501 S Clinton St | Baltimore City | 21224-5730 | carefirst.***** | 1934 | $8,748,055,958 | 6,000 | Corporation | 40 | D04849782 |
| 7 | T. Rowe Price Group, INC. | USA | Baltimore | 100 E Pratt St | Baltimore City | 21202-1090 | troweprice.***** | 1937 | $7,314,800,000 | 7,773 | Corporation | 98 | D05650320 |
| 8 | University Of Maryland Medical System CORPORATION | USA | Baltimore | 250 W Pratt St | Baltimore City | 21201-2423 | umms.***** | 1984 | $5,587,604,000 | 12,000 | Corporation | 170 | N/A |
| 9 | Baltimore Gas And Electric Company | USA | Baltimore | 110 W Fayette St | Baltimore City | 21201-3708 | bge.***** | 2012 | $5,222,000,000 | 3,383 | Corporation | 314 | D00510735 |
| 10 | Under Armour, INC. | USA | Baltimore | 101 Performance Dr | Baltimore City | 21230-5684 | about.***** | 1996 | $5,164,310,000 | 14,400 | Corporation | 193 | D04444345 |
| 11 | City Of Baltimore | USA | Baltimore | 100 Holliday St Ste 250 | Baltimore City | 21202-3459 | baltimorecity.***** | 1797 | $3,555,871,000 | 26,400 | Corporation | 288 | 526000769 |
| 12 | Johns Hopkins Hospital | USA | Baltimore | 1800 Orleans St | Baltimore City | 21287-0010 | hopkinsmedicine.***** | 1867 | $2,798,752,000 | 12,000 | Corporation | 112 | D00089102 |
| 13 | Lifebridge Health, INC. | USA | Baltimore | 2401 W Belvedere Ave | Baltimore City | 21215-5216 | reach-redirect.***** | 1985 | $2,200,000,000 | 6,000 | Corporation | 39 | 521402373 |
| 14 | Mercy Health Services, INC. | USA | Baltimore | 301 Saint Paul Pl | Baltimore City | 21202 | mdmercy.***** | 1999 | $1,060,580,000 | 1 | Corporation | N/A | D05321344 |
| 15 | Legg Mason INC | USA | Baltimore | 100 International Dr | Baltimore City | 21202-4673 | leggmason.***** | 2020 | $925,979,758 | 3,275 | Corporation | 412 | D01223502 |
| 16 | Healthsource Distributors, LLC | USA | Baltimore | 7200 Rutherford Rd Ste 150 | Baltimore City | 21244-2743 | healthsourcedistributors.***** | 2003 | $918,565,663 | 60 | Corporation | 2 | W07649759 |
| 17 | Maryland Transportation Authority | USA | Baltimore | 2310 Broening Hwy | Baltimore City | 21224-6639 | mdta.***** | 2014 | $887,526,000 | 77 | Corporation | 4 | N/A |
| 18 | Sinai Hospital Of Baltimore, INC. | USA | Baltimore | 2401 W Belvedere Ave | Baltimore City | 21215-5270 | doctors.***** | 1868 | $847,021,134 | 4,497 | Corporation | 39 | D00197830 |
| 19 | T. Rowe Price New Income Fund, INC. | USA | Baltimore | 100 E Pratt St Fl 4 | Baltimore City | 21202-1081 | troweprice.***** | 1973 | $818,312,000 | 7 | Corporation | N/A | D00455196 |
| 20 | Johns Hopkins Bayview Medical Center, INC. | USA | Baltimore | 4940 Eastern Ave | Baltimore City | 21224-2780 | hopkinsbayviewinternalmedicine.***** | 1986 | $800,765,000 | 3,300 | Corporation | 112 | D01708395 |
| 21 | Gbmc Healthcare, INC. | USA | Baltimore | 6701 N Charles St | Baltimore City | 21204-6808 | gbmc.***** | 1986 | $766,651,000 | 3,900 | Corporation | 33 | D02217222 |
| 22 | T. Rowe Price Associates, INC. | USA | Baltimore | 1307 Point St | Baltimore City | 21231-3827 | troweprice.***** | 1979 | $645,401,811 | 4,100 | Corporation | 98 | 520556948 |
| 23 | T. Rowe Price U.S. Treasury Funds, INC. | USA | Baltimore | 100 E Pratt St Fl 4 | Baltimore City | 21202-1081 | troweprice.***** | 2006 | $630,918,000 | 18 | Corporation | 98 | D02832004 |
| 24 | Franklin Square Hospital Center, INC. | USA | Baltimore | 9000 Franklin Square Dr | Baltimore City | 21237-3997 | medstarhealth.***** | 1901 | $628,744,757 | 3,019 | Corporation | 237 | D00104208 |
| 25 | Mercy Medical Center, INC. | USA | Baltimore | 345 Saint Paul St | Baltimore City | 21202-2123 | mdmercy.***** | 1945 | $628,590,000 | 4,228 | Corporation | 18 | D00152884 |
Showing 25 of 133,990 companies
Request Free SampleLargest industries in Baltimore
The biggest industry groups in Baltimore by registered company count, with the top five companies by revenue in each.
Restaurants and eating places
4,614 companies
SIC 5812
Religious Organizations
3,375 companies
SIC 8661
Business Consulting Services, Not Elsewhere Classified
3,028 companies
SIC 8748
Operators of Nonresidential Buildings
2,809 companies
SIC 6512
Real estate agents and managers
2,663 companies
SIC 6531
General Contractors-Single-Family Houses
2,552 companies
SIC 1521
Investors, Not Elsewhere Classified
2,474 companies
SIC 6799
All industries in Baltimore
Together, general business services, restaurants and eating places and Religious Organizations make up the top three industries in Baltimore, accounting for 10% of the city's commercial activity. The oldest company we can find in Baltimore is Society Of ST. Sulpice Foundation U.S., INC., founded in 1791, with West Baltimore United Methodist Church not far behind. They're still here, along with hundreds of thousands of others.
A working port since colonial times, Baltimore now leans on medicine and research, with Johns Hopkins anchoring an economy that still loads ships in the harbor. All of them are in our data. Search Baltimore businesses in the live tool below, get the full list delivered as an Excel file, or pull the records straight into your own systems through our API.
- Nonclassifiable Establishments26,253
- Business Services, Not Elsewhere Classified5,758
- Eating Places4,614
- Religious Organizations3,375
- Business Consulting Services, Not Elsewhere Classified3,028
- Operators of Nonresidential Buildings2,809
- Real Estate Agents and Managers2,663
- General Contractors-Single-Family Houses2,552
- Investors, Not Elsewhere Classified2,474
- Offices and Clinics of Doctors of Medicine2,287
- Other industries78,177
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Common questions about searching, filtering, and ordering Baltimore company data.
Our Baltimore business directory currently lists every registered legal entity with a Baltimore address in the official United States business register. The exact count is shown live at the top of this page.
Baltimore records are sourced directly from the official United States business register and enriched with 50+ data points: revenue, employees, industry codes, contact details, and ownership.
Core registry fields are refreshed weekly. Enriched fields (revenue, employees, contact) are refreshed monthly so your Baltimore list never goes stale.
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