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Side-by-side financial comparison of Iridium Communications Inc. (IRDM) and RAMBUS INC (RMBS). Click either name above to swap in a different company.
Iridium Communications Inc. is the larger business by last-quarter revenue ($219.1M vs $180.2M, roughly 1.2× RAMBUS INC). RAMBUS INC runs the higher net margin — 33.2% vs 9.9%, a 23.4% gap on every dollar of revenue. On growth, RAMBUS INC posted the faster year-over-year revenue change (8.1% vs 1.9%). Over the past eight quarters, RAMBUS INC's revenue compounded faster (16.8% CAGR vs 4.4%).
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...
Rambus Inc. is an American technology company that designs, develops and licenses chip interface technologies and architectures that are used in digital electronics products. The company, founded in 1990, is well known for inventing RDRAM and for its intellectual property-based litigation following the introduction of DDR-SDRAM memory.
IRDM vs RMBS — Head-to-Head
Income Statement — Q1 FY2026 vs Q1 FY2026
| Metric | | |
|---|---|---|
| Revenue | $219.1M | $180.2M |
| Net Profit | $21.6M | $59.9M |
| Gross Margin | — | 79.7% |
| Operating Margin | 23.2% | 34.3% |
| Net Margin | 9.9% | 33.2% |
| Revenue YoY | 1.9% | 8.1% |
| Net Profit YoY | — | -7.3% |
| EPS (diluted) | — | $0.55 |
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 | $180.2M | ||
| Q4 25 | $212.9M | $190.2M | ||
| Q3 25 | $226.9M | $178.5M | ||
| Q2 25 | $216.9M | $172.2M | ||
| Q1 25 | $214.9M | $166.7M | ||
| Q4 24 | $213.0M | $161.1M | ||
| Q3 24 | $212.8M | $145.5M | ||
| Q2 24 | $201.1M | $132.1M |
| Q1 26 | $21.6M | $59.9M | ||
| Q4 25 | $24.9M | $63.8M | ||
| Q3 25 | $37.1M | $48.4M | ||
| Q2 25 | $22.0M | $57.9M | ||
| Q1 25 | $30.4M | $60.3M | ||
| Q4 24 | $36.3M | $62.2M | ||
| Q3 24 | $24.4M | $48.7M | ||
| Q2 24 | $32.3M | $36.1M |
| Q1 26 | — | 79.7% | ||
| Q4 25 | — | 78.9% | ||
| Q3 25 | — | 79.5% | ||
| Q2 25 | — | 79.8% | ||
| Q1 25 | — | 80.3% | ||
| Q4 24 | — | 80.4% | ||
| Q3 24 | — | 80.7% | ||
| Q2 24 | — | 79.7% |
| Q1 26 | 23.2% | 34.3% | ||
| Q4 25 | 25.9% | 37.2% | ||
| Q3 25 | 30.9% | 35.4% | ||
| Q2 25 | 23.2% | 36.6% | ||
| Q1 25 | 28.1% | 37.9% | ||
| Q4 24 | 24.5% | 35.9% | ||
| Q3 24 | 25.8% | 37.6% | ||
| Q2 24 | 21.7% | 30.5% |
| Q1 26 | 9.9% | 33.2% | ||
| Q4 25 | 11.7% | 33.6% | ||
| Q3 25 | 16.4% | 27.1% | ||
| Q2 25 | 10.1% | 33.6% | ||
| Q1 25 | 14.2% | 36.2% | ||
| Q4 24 | 17.1% | 38.6% | ||
| Q3 24 | 11.5% | 33.4% | ||
| Q2 24 | 16.1% | 27.3% |
| Q1 26 | — | $0.55 | ||
| Q4 25 | $0.24 | $0.58 | ||
| Q3 25 | $0.35 | $0.44 | ||
| Q2 25 | $0.20 | $0.53 | ||
| Q1 25 | $0.27 | $0.56 | ||
| Q4 24 | $0.30 | $0.57 | ||
| Q3 24 | $0.21 | $0.45 | ||
| Q2 24 | $0.27 | $0.33 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | — | $134.3M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | — | — |
| Total Assets | — | $1.5B |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | $134.3M | ||
| Q4 25 | $96.5M | $182.8M | ||
| Q3 25 | $88.5M | $79.2M | ||
| Q2 25 | $79.3M | $87.8M | ||
| Q1 25 | $50.9M | $132.2M | ||
| Q4 24 | $93.5M | $99.8M | ||
| Q3 24 | $159.6M | $114.0M | ||
| Q2 24 | $63.5M | $124.6M |
| 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 | $1.4B | ||
| Q3 25 | $450.5M | $1.3B | ||
| Q2 25 | $473.6M | $1.2B | ||
| Q1 25 | $518.4M | $1.2B | ||
| Q4 24 | $576.6M | $1.1B | ||
| Q3 24 | $663.8M | $1.0B | ||
| Q2 24 | $786.7M | $1.0B |
| Q1 26 | — | $1.5B | ||
| Q4 25 | $2.5B | $1.5B | ||
| Q3 25 | $2.6B | $1.4B | ||
| Q2 25 | $2.6B | $1.5B | ||
| Q1 25 | $2.6B | $1.4B | ||
| Q4 24 | $2.7B | $1.3B | ||
| Q3 24 | $2.8B | $1.3B | ||
| Q2 24 | $2.7B | $1.3B |
| 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% |
RMBS
| Product revenue | $88.0M | 49% |
| Royalties | $69.6M | 39% |
| Contract and other revenue | $22.6M | 13% |
