Debt-free companies

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

Rank	Company	Equity (millions)
1	Analog Devices	$3,734.4
2	3Com Corp.	$1,351.4
3	Sycamore Networks	$946.7
4	Interactive Data Corp.	$857.8
5	RSA Security	$476.5
6	Cognex Corp.	$462.8
7	GSI Lumonics	$305.6
8	Kronos	$299.5
9	Mykrolis Corp.	$271.5
10	Parametric Technology Corp.	$268.9
11	Stride Rite Corp.	$246.9
12	Vicor Corp.	$220.6
13	Kadant	$212.5
14	Forrester Research	$199.8
15	Sapient Corp.	$185.9
16	Zoll Medical Corp.	$178.8
17	MRO Software	$168.0
18	Quaker Fabric Corp.	$166.5
19	SeaChange International	$165.0
20	Helix Technology Corp.	$144.1
21	Kopin Corp.	$139.2
22	Boston Communications Group	$138.4
23	NitroMed	$137.0
24	Lightbridge	$136.9
25	MatrixOne	$130.3
26	NetScout Systems	$116.8
27	Caliper Life Sciences	$111.6
28	Massbank Corp.	$110.0
29	Enterasys Networks	$109.7
30	American Superconductor Corp.	$106.5
31	Lifeline Systems	$97.7
32	ImmunoGen	$92.5
33	Brooktrout	$81.7
34	Boston Beer Co.	$78.4
35	Edgewater Technology	$76.6
36	Avici Systems	$76.3
37	Moldflow Corp.	$75.4
38	Candela Corp.	$73.7
39	Providence and Worcester Railroad Co.	$69.2
40	NMS Communications Corp.	$68.4
41	Network Engines	$63.3
42	Biopure Corp.	$56.5
43	Abiomed	$56.1
44	Dusa Pharmaceuticals	$52.5
45	American Science and Engineering	$49.7
46	Aware	$48.8
47	Evergreen Solar	$41.5
48	Exact Sciences Corp.	$38.0
49	NMT Medical	$36.9
50	Boston Acoustics	$35.3
51	Anika Therapeutics	$30.4
52	Palomar Medical Technologies	$29.2
53	Oxigene	$29.1
54	Repligen Corp.	$24.7
55	CardioTech International	$20.8
56	Ibis Technology Corp.	$20.4
57	Advanced Magnetics	$15.2
58	CSP	$14.6
59	Hybridon	$12.8
60	Applix	$12.2
61	Tech/Ops Sevcon	$10.9
62	Valpey Fisher Corp.	$10.6
63	Arrhythmia Research Technology	$10.5
64	Investors Capital Holdings Ltd.	$9.9
65	Sontra Medical Corp.	$9.3
66	PLC Systems	$6.8
67	Datawatch Corp.	$6.3
68	Psychemedics Corp.	$6.2
69	Beacon Power Corp.	$5.1
70	Precision Optics Corp.	$4.8
71	Wave Systems Corp.	$4.7
72	Bitstream	$4.6
73	Physiometrix	$2.5
74	V.I. Technologies	$2.4
75	Segue Software	$1.7