Bel Fuse Inc.
Rank #339HypergrowthBELFA · Nasdaq · Technology
Bel Fuse Inc. (BELFA) — Rank #339 by gross profitability (GP/assets 0.21) · ROE 6.8% · Piotroski F-Score N/A.
As-of 2026-09-15 · CIK 0000729580 · all metrics point-in-time as of the filing date.
About
Bel Fuse Inc. designs, manufactures, markets, and sells products that power, protect, and connect electronic circuits.
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It operates in three product groups: Power Solutions and Protection, Connectivity Solutions, and Magnetic Solutions. The company's products are used in the networking, telecommunications, computing, general industrial, high-speed data transmission, defence, commercial aerospace, transportation, and e-Mobility industries. It provides power solutions and protection products, including front-end power supplies, board-mount power products, industrial and transportation power products, military, aerospace and defense products, external power products, and circuit protection products. The company offers connectivity solutions, such as expanded beam fiber optic connectors, cable assemblies, and active optical devices; copper-based connectors/cable assemblies; radio frequency connectors, cable assemblies, microwave devices, and low loss cables; and ethernet, I/O, and industrial and power connectivity products. In addition, it provides magnetic solutions comprising integrated connector modules, power transformers, SMD power inductors and SMPS transformers, and discrete components-ethernet. The company sells its products through direct strategic account managers, regional sales managers working with independent sales representative organizations, and authorized distributors North America, Europe, Middle East, and Asia. Bel Fuse Inc.
was incorporated in 1949 and is headquartered in West Orange, New Jersey.
- Industry
- Electronic Components
- Sector
- Technology
- State
- NJ
- Filer Category
- Large accelerated filer
- Fiscal Year End
- December 31
- Website
- belfuse.com
Financials
Each fiscal year is read as-of that year’s own 10-K filing, so nothing restated after the fact leaks backwards. Line items this filer never tagged are omitted. Hover or tap a badge for the diagnostic behind it.
| Fiscal year end | 2019-12-31filed 2020-03-25 | 2018-12-31filed 2019-03-08 | 2017-12-31filed 2018-03-09 | 2016-12-31filed 2017-03-10 |
|---|---|---|---|---|
| Revenue | 492.4 | 548.2 | 491.6 | 500.2 |
| Revenue growth (YoY) | -1.5% | 9.6% | -1.7% | -11.8% |
| Cost of revenue | 381.7 | 438.4 | 389.6 | 400.2 |
| Gross profit | 110.7 | 109.8 | 102.0 | 99.9 |
| Gross margin | 22.5% | 20.0% | 20.8% | 20.0% |
| Selling, general & administrative | 76.1 | 79.9 | 85.1 | 71.0 |
| Research & development | 26.9 | 29.4 | 28.8 | 26.7 |
| Operating income | 0.5 | 29.6 | 16.3 | (76.5) |
| Operating margin | 0.1% | 5.4% | 3.3% | -15.3% |
| Interest expense | 5.4 | 5.3 | 6.8 | 6.7 |
| Pre-tax income | (7.3) | 23.6 | 9.6 | (82.6) |
| Income tax expense | 1.4 | 2.9 | 21.5 | (17.7) |
| Net income | (8.7) | 20.7 | (11.9) | (64.8) |
| Net margin | -1.8% | 3.8% | -2.4% | -13.0% |
Figures are as originally filed with the SEC (point-in-time), not restated, so they can differ slightly from sites that show later-restated numbers. Why point-in-time?