Bel Fuse Inc.
Bel Fuse Inc. (Nasdaq: BELFA; Nasdaq: BELFB) designs, manufactures and markets products that power, protect and connect electronic circuits for customers in defense, commercial aerospace, networking, telecommunications, computing, industrial, high-speed data transmission, transportation and eMobility markets, among… From the company’s description.
In fiscal 2025, Bel Fuse Inc. reported revenue of $675.46M, up 26.3% from fiscal 2024, and net income of $74.11M. Its operating margin was 16.4%, and operations generated $80.61M in cash. Over the twelve months to Jun 30, 2026, revenue was $744.09M.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Bel Fuse Inc. does
In the company’s own words
Bel Fuse Inc. (Nasdaq: BELFA; Nasdaq: BELFB) designs, manufactures and markets products that power, protect and connect electronic circuits for customers in defense, commercial aerospace, networking, telecommunications, computing, industrial, high-speed data transmission, transportation and eMobility markets, among others. Its portfolio includes power supplies, converters, inverters and circuit protection devices; fiber-optic, copper, RF and Ethernet connectors and cable assemblies; and integrated connector modules, transformers and inductors. Bel reports three product groups: Power Solutions and Protection, which accounted for 53% of 2025 net sales; Connectivity Solutions, 34%; and Magnetic Solutions, 13%. Products are sold through direct account managers, independent sales representatives and authorized distributors. Brands include Bel Power Solutions & Protection, CUI, EOS, Enercon, Stratos, Fibreco, Cinch, Johnson, Stewart Connector, MagJack and Signal. The 2024 acquisition of an 80% stake in Enercon expanded its customized power conversion and networking offerings for aerospace and defense customers. Bel employed approximately 4,964 people across 15 countries as of December 31, 2025. Its website is www.belfuse.com.
Company details
- Sector
- Information Technology
- Industry (SIC)
- Electronic Equipment
- Headquarters
- WEST ORANGE, NJ
- Fiscal year end
- December
- CIK
- 729580
- SIC
- 3677
Financial performance, year by year
Fiscal 2013–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Bel Fuse Inc. — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Superinvestors in Bel Fuse Inc. · what they did last quarter
Share of each manager’s reported 13F portfolio. Change is in shares held, since the previous quarter.
Largest fund holders · Bel Fuse Inc.’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
By share class
| Class | Held by funds | Funds | Shares out |
|---|---|---|---|
| BELFAClass A Common Stock ($0.10 par value) | 22.9% | 107 | 2.1M |
| BELFBClass B Common Stock ($0.10 par value) | 49.1% | 291 | 12.3M |
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Fund ownership is a subset of institutional 13F ownership — the two describe overlapping populations and must not be added together.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
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