Rank

Company

City

Business

Employees

1

Black & Decker Corp.

Towson

Tools & Appliances

22,100

2

Constellation Energy Group

Baltimore

Energy

7,401

3

Allegheny Energy Inc.

Hagerstown

Utility

4,923

4

Integrated Health Services

Owings Mills

Health Care

73,200

5

McCormick & Co. Inc.

Sparks

Food

7,300

6

Crown Central Petroleum

Baltimore

Petroleum

2,695

7

Legg Mason Inc.

Baltimore

Investments

4,400

8

T. Rowe Price

Baltimore

Mutual Funds

3,644

9

Sitel Corp.

Baltimore

Telemarketing

24,000

10

Sinclair Broadcast Group

Cockeysville

Television

3,700

11

Ciena Corp.

Linthicum

Telecom Equipment

1,928

12

RailWorks Corp.

Baltimore

Transportation

2,500

13

Sylvan Learning Systems

Baltimore

Education

7,437

14

Prime Retail Inc.

Baltimore

REIT

1,082

15

Jos. A. Bank Clothiers

Hampstead

Clothing Retailer

1,150

16

Tessco Technologies Inc.

Hunt Valley

Communications

385

17

Town and Country Trust

Baltimore

REIT

600

18

I.C. Isaacs & Company Inc.

Baltimore

Clothing

320

19

Creditrust Corp.

Baltimore

Debt Collection

900

20

Environmental Elements

Baltimore

Pollution Control

142

21

Municipal Mortgage & Equity

Baltimore

Mortgage

150

22

Mid-Atlantic Realty Trust

Lutherville

REIT

61

23

EA Engineering

Hunt Valley

Consulting

370

24

Caliber Learning Network

Baltimore

Education/Training

187

25

Adams Express Co.

Baltimore

Investment Company

20

26

Guilford Pharmaceuticals

Baltimore

Pharmaceuticals

228

27

Information Resource

Baltimore

Data Security

124

28

Petroleum & Resources

Baltimore

Investment Company

17

29

PharmaKinetics

Baltimore

Pharmaceuticals

150

30

Universal Security Instr.

Owings Mills

Security Products

14