Debt-free companies

Largest companies with no long-term debt, ranked by equity.

Rank	Company	Equity (millions)
1	Analog Devices	$3,709.6
2	3Com Corp.	$1,204.8
3	Sycamore Networks	$963.1
4	Interactive Data Corp.	$855.4
5	Avid Technology	$839.6
6	RSA Security	$506.9
7	Cognex Corp.	$506.5
8	Analogic Corp.	$430.6
9	Kronos	$343.6
10	GSI Group	$306.6
11	TC Pipelines	$301.6
12	Hologic	$234.8
13	Vicor Corp.	$216.8
14	Idenix Pharmaceuticals	$206.9
15	Sapient Corp.	$202.6
16	Forrester Research	$198.8
17	MRO Software	$187.7
18	Zoll Medical Corp.	$182.3
19	Lightbridge	$157.0
20	SeaChange International	$154.0
21	Kopin Corp.	$146.5
22	American Superconductor Corp.	$125.3
23	NetScout Systems	$124.0
24	Lifeline Systems	$122.0
25	Amicas	$119.9

SOURCE: Standard & Poor's Compustat