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Side-by-side financial comparison of Iridium Communications Inc. (IRDM) and Limbach Holdings, Inc. (LMB). Click either name above to swap in a different company.
Iridium Communications Inc. is the larger business by last-quarter revenue ($219.1M vs $186.9M, roughly 1.2× Limbach Holdings, Inc.). Iridium Communications Inc. runs the higher net margin — 9.9% vs 6.6%, a 3.3% gap on every dollar of revenue. On growth, Limbach Holdings, Inc. posted the faster year-over-year revenue change (30.1% vs 1.9%). Over the past eight quarters, Limbach Holdings, Inc.'s revenue compounded faster (25.3% 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...
Limbach Flugmotoren is a Chinese-owned company based in Germany that produces aircraft engines.
IRDM vs LMB — Head-to-Head
Income Statement — Q1 FY2026 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $219.1M | $186.9M |
| Net Profit | $21.6M | $12.3M |
| Gross Margin | — | 25.7% |
| Operating Margin | 23.2% | 9.4% |
| Net Margin | 9.9% | 6.6% |
| Revenue YoY | 1.9% | 30.1% |
| Net Profit YoY | — | 25.0% |
| EPS (diluted) | — | $1.01 |
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 | $186.9M | ||
| Q3 25 | $226.9M | $184.6M | ||
| Q2 25 | $216.9M | $142.2M | ||
| Q1 25 | $214.9M | $133.1M | ||
| Q4 24 | $213.0M | $143.7M | ||
| Q3 24 | $212.8M | $133.9M | ||
| Q2 24 | $201.1M | $122.2M |
| Q1 26 | $21.6M | — | ||
| Q4 25 | $24.9M | $12.3M | ||
| Q3 25 | $37.1M | $8.8M | ||
| Q2 25 | $22.0M | $7.8M | ||
| Q1 25 | $30.4M | $10.2M | ||
| Q4 24 | $36.3M | $9.8M | ||
| Q3 24 | $24.4M | $7.5M | ||
| Q2 24 | $32.3M | $6.0M |
| Q1 26 | — | — | ||
| Q4 25 | — | 25.7% | ||
| Q3 25 | — | 24.2% | ||
| Q2 25 | — | 28.0% | ||
| Q1 25 | — | 27.6% | ||
| Q4 24 | — | 30.3% | ||
| Q3 24 | — | 27.0% | ||
| Q2 24 | — | 27.4% |
| Q1 26 | 23.2% | — | ||
| Q4 25 | 25.9% | 9.4% | ||
| Q3 25 | 30.9% | 7.2% | ||
| Q2 25 | 23.2% | 7.5% | ||
| Q1 25 | 28.1% | 5.9% | ||
| Q4 24 | 24.5% | 9.1% | ||
| Q3 24 | 25.8% | 8.1% | ||
| Q2 24 | 21.7% | 6.7% |
| Q1 26 | 9.9% | — | ||
| Q4 25 | 11.7% | 6.6% | ||
| Q3 25 | 16.4% | 4.8% | ||
| Q2 25 | 10.1% | 5.5% | ||
| Q1 25 | 14.2% | 7.7% | ||
| Q4 24 | 17.1% | 6.9% | ||
| Q3 24 | 11.5% | 5.6% | ||
| Q2 24 | 16.1% | 4.9% |
| Q1 26 | — | — | ||
| Q4 25 | $0.24 | $1.01 | ||
| Q3 25 | $0.35 | $0.73 | ||
| Q2 25 | $0.20 | $0.64 | ||
| Q1 25 | $0.27 | $0.85 | ||
| Q4 24 | $0.30 | $0.81 | ||
| Q3 24 | $0.21 | $0.62 | ||
| Q2 24 | $0.27 | $0.50 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | — | $11.3M |
| Total DebtLower is stronger | — | $30.5M |
| Stockholders' EquityBook value | — | $195.7M |
| Total Assets | — | $381.1M |
| Debt / EquityLower = less leverage | — | 0.16× |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $96.5M | $11.3M | ||
| Q3 25 | $88.5M | $9.8M | ||
| Q2 25 | $79.3M | $38.9M | ||
| Q1 25 | $50.9M | $38.1M | ||
| Q4 24 | $93.5M | $44.9M | ||
| Q3 24 | $159.6M | $51.2M | ||
| Q2 24 | $63.5M | $59.5M |
| Q1 26 | — | — | ||
| Q4 25 | $1.8B | $30.5M | ||
| Q3 25 | — | $56.3M | ||
| Q2 25 | — | $28.4M | ||
| Q1 25 | — | $23.7M | ||
| Q4 24 | $1.8B | $23.6M | ||
| Q3 24 | — | $20.5M | ||
| Q2 24 | — | $19.7M |
| Q1 26 | — | — | ||
| Q4 25 | $462.6M | $195.7M | ||
| Q3 25 | $450.5M | $181.6M | ||
| Q2 25 | $473.6M | $170.5M | ||
| Q1 25 | $518.4M | $161.1M | ||
| Q4 24 | $576.6M | $153.5M | ||
| Q3 24 | $663.8M | $142.2M | ||
| Q2 24 | $786.7M | $133.0M |
| Q1 26 | — | — | ||
| Q4 25 | $2.5B | $381.1M | ||
| Q3 25 | $2.6B | $409.1M | ||
| Q2 25 | $2.6B | $343.0M | ||
| Q1 25 | $2.6B | $336.4M | ||
| Q4 24 | $2.7B | $352.1M | ||
| Q3 24 | $2.8B | $324.4M | ||
| Q2 24 | $2.7B | $303.9M |
| Q1 26 | — | — | ||
| Q4 25 | 3.80× | 0.16× | ||
| Q3 25 | — | 0.31× | ||
| Q2 25 | — | 0.17× | ||
| Q1 25 | — | 0.15× | ||
| Q4 24 | 3.05× | 0.15× | ||
| Q3 24 | — | 0.14× | ||
| Q2 24 | — | 0.15× |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | — | $28.1M |
| Free Cash FlowOCF − Capex | — | $27.9M |
| FCF MarginFCF / Revenue | — | 14.9% |
| Capex IntensityCapex / Revenue | 13.7% | 0.1% |
| Cash ConversionOCF / Net Profit | — | 2.29× |
| TTM Free Cash FlowTrailing 4 quarters | — | $41.9M |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $108.6M | $28.1M | ||
| Q3 25 | $100.8M | $13.3M | ||
| Q2 25 | $129.6M | $2.0M | ||
| Q1 25 | $61.1M | $2.2M | ||
| Q4 24 | $104.8M | $19.3M | ||
| Q3 24 | $118.6M | $4.9M | ||
| Q2 24 | $81.1M | $16.5M |
| Q1 26 | — | — | ||
| Q4 25 | $75.1M | $27.9M | ||
| Q3 25 | $79.2M | $12.8M | ||
| Q2 25 | $108.9M | $1.2M | ||
| Q1 25 | $36.5M | $11.0K | ||
| Q4 24 | $80.5M | $18.0M | ||
| Q3 24 | $100.0M | $4.6M | ||
| Q2 24 | $68.7M | $13.2M |
| Q1 26 | — | — | ||
| Q4 25 | 35.3% | 14.9% | ||
| Q3 25 | 34.9% | 7.0% | ||
| Q2 25 | 50.2% | 0.8% | ||
| Q1 25 | 17.0% | 0.0% | ||
| Q4 24 | 37.8% | 12.5% | ||
| Q3 24 | 47.0% | 3.4% | ||
| Q2 24 | 34.2% | 10.8% |
| Q1 26 | 13.7% | — | ||
| Q4 25 | 15.7% | 0.1% | ||
| Q3 25 | 9.5% | 0.3% | ||
| Q2 25 | 9.5% | 0.6% | ||
| Q1 25 | 11.4% | 1.7% | ||
| Q4 24 | 11.4% | 0.9% | ||
| Q3 24 | 8.7% | 0.3% | ||
| Q2 24 | 6.2% | 2.7% |
| Q1 26 | — | — | ||
| Q4 25 | 4.37× | 2.29× | ||
| Q3 25 | 2.71× | 1.52× | ||
| Q2 25 | 5.90× | 0.26× | ||
| Q1 25 | 2.01× | 0.22× | ||
| Q4 24 | 2.88× | 1.96× | ||
| Q3 24 | 4.85× | 0.66× | ||
| Q2 24 | 2.51× | 2.77× |
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% |
LMB
| Owner Direct Relationships Segment | $145.0M | 78% |
| General Contractor Construction Manager Relationships Segment | $41.9M | 22% |
