Baltimore (full name Baltimore Technologies) is the name of a Dublin, Ireland-based technology company specialising in 'e-security' solutions. Listed on the NASDAQ (BALT) and London Stock Exchange (BLM), in 1999 it raised $170m cash. The next year saw a series of acquisitions, and involvment in popular security applications such as MIMEsweeper. Customers included Citibank, Intel, Mastercard, and VISA International.

Once listed in the FTSE-100 index of top-performing shares in London, Baltimore's share price has plummeted from a high of more than £10 to around 17p in mid-2001. The recent resignation of its CEO and talks of a takeover have ensured that Baltimore has remained in the media spotlight recently.