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Side-by-side financial comparison of Iridium Communications Inc. (IRDM) and TOWER SEMICONDUCTOR LTD (TSEM). Click either name above to swap in a different company.
TOWER SEMICONDUCTOR LTD is the larger business by last-quarter revenue ($351.2M vs $219.1M, roughly 1.6× Iridium Communications Inc.). TOWER SEMICONDUCTOR LTD runs the higher net margin — 15.2% vs 9.9%, a 5.4% gap on every dollar of revenue. On growth, Iridium Communications Inc. posted the faster year-over-year revenue change (1.9% vs -1.7%).
Iridium Communications Inc. is a publicly traded American company headquartered in McLean, Virginia, United States. Iridium operates the Iridium satellite constellation, a system of 80 satellites: 66 are active satellites and the remaining fourteen function as in-orbit spares. Iridium Satellites are used for worldwide voice and data communication from handheld satellite phones, satellite messenger communication devices and integrated transceivers, as well as for two-way satellite messaging se...
Tower Semiconductor Ltd. is an Israeli company that manufactures integrated circuits using specialty process technologies, including SiGe, BiCMOS, Silicon Photonics, SOI, mixed-signal and RFCMOS, CMOS image sensors, non-imaging sensors, power management (BCD), and non-volatile memory (NVM) as well as MEMS capabilities. Tower Semiconductor also owns 51% of TPSCo, an enterprise with Nuvoton Technology Corporation Japan (NTCJ).
IRDM vs TSEM — Head-to-Head
Income Statement — Q1 FY2026 vs Q2 FY2024
| Metric | | |
|---|---|---|
| Revenue | $219.1M | $351.2M |
| Net Profit | $21.6M | $53.4M |
| Gross Margin | — | 24.8% |
| Operating Margin | 23.2% | 15.7% |
| Net Margin | 9.9% | 15.2% |
| Revenue YoY | 1.9% | -1.7% |
| Net Profit YoY | — | 4.4% |
| EPS (diluted) | — | $0.48 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q1 26 | $219.1M | — | ||
| Q4 25 | $212.9M | — | ||
| Q3 25 | $226.9M | — | ||
| Q2 25 | $216.9M | — | ||
| Q1 25 | $214.9M | — | ||
| Q4 24 | $213.0M | — | ||
| Q3 24 | $212.8M | — | ||
| Q2 24 | $201.1M | $351.2M |
| Q1 26 | $21.6M | — | ||
| Q4 25 | $24.9M | — | ||
| Q3 25 | $37.1M | — | ||
| Q2 25 | $22.0M | — | ||
| Q1 25 | $30.4M | — | ||
| Q4 24 | $36.3M | — | ||
| Q3 24 | $24.4M | — | ||
| Q2 24 | $32.3M | $53.4M |
| Q1 26 | — | — | ||
| Q4 25 | — | — | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | 24.8% |
| Q1 26 | 23.2% | — | ||
| Q4 25 | 25.9% | — | ||
| Q3 25 | 30.9% | — | ||
| Q2 25 | 23.2% | — | ||
| Q1 25 | 28.1% | — | ||
| Q4 24 | 24.5% | — | ||
| Q3 24 | 25.8% | — | ||
| Q2 24 | 21.7% | 15.7% |
| Q1 26 | 9.9% | — | ||
| Q4 25 | 11.7% | — | ||
| Q3 25 | 16.4% | — | ||
| Q2 25 | 10.1% | — | ||
| Q1 25 | 14.2% | — | ||
| Q4 24 | 17.1% | — | ||
| Q3 24 | 11.5% | — | ||
| Q2 24 | 16.1% | 15.2% |
| Q1 26 | — | — | ||
| Q4 25 | $0.24 | — | ||
| Q3 25 | $0.35 | — | ||
| Q2 25 | $0.20 | — | ||
| Q1 25 | $0.27 | — | ||
| Q4 24 | $0.30 | — | ||
| Q3 24 | $0.21 | — | ||
| Q2 24 | $0.27 | $0.48 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | — | $265.3M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | — | $2.5B |
| Total Assets | — | $3.0B |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $96.5M | — | ||
| Q3 25 | $88.5M | — | ||
| Q2 25 | $79.3M | — | ||
| Q1 25 | $50.9M | — | ||
| Q4 24 | $93.5M | — | ||
| Q3 24 | $159.6M | — | ||
| Q2 24 | $63.5M | $265.3M |
| Q1 26 | — | — | ||
| Q4 25 | $1.8B | — | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | $1.8B | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — |
| Q1 26 | — | — | ||
| Q4 25 | $462.6M | — | ||
| Q3 25 | $450.5M | — | ||
| Q2 25 | $473.6M | — | ||
| Q1 25 | $518.4M | — | ||
| Q4 24 | $576.6M | — | ||
| Q3 24 | $663.8M | — | ||
| Q2 24 | $786.7M | $2.5B |
| Q1 26 | — | — | ||
| Q4 25 | $2.5B | — | ||
| Q3 25 | $2.6B | — | ||
| Q2 25 | $2.6B | — | ||
| Q1 25 | $2.6B | — | ||
| Q4 24 | $2.7B | — | ||
| Q3 24 | $2.8B | — | ||
| Q2 24 | $2.7B | $3.0B |
| Q1 26 | — | — | ||
| Q4 25 | 3.80× | — | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | 3.05× | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
IRDM
| Voice and data | $57.4M | 26% |
| IoT data (2) | $46.0M | 21% |
| Government | $39.5M | 18% |
| Government service revenue (5) | $27.6M | 13% |
| Subscriber equipment | $20.2M | 9% |
| Hosted payload and other data service (4) | $14.8M | 7% |
| Broadband (3) | $12.2M | 6% |
| Commercial | $1.3M | 1% |
TSEM
Segment breakdown not available.
