This list was prepared using data collected as part of Maryland's Quarterly Census of Employment and Wages (QCEW) Program.  In using the list, the following should be noted:

• Names* – Wherever possible the "trade" or "doing business as" name was shown. When this was not the case a legal or corporate name was listed.
• Industry – Employers are assigned an industry code based on their major business activity. The North American Industry Classification System (NAICS) was used. The NAICS detail information may reviewed on the U.S. Census Bureau website.

* The companies listed employ at least 1,000.

Designation in the Top 50 Group Rank column signifies the employer's quintile within the top 50 largest employers:

1 = Top 1 - 10
2 = Top 11 -20
3 = Top 21 - 30
4 = Top 31 - 40
5 = Top 41 - 50

Next Scheduled Update:  September 2013