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Side-by-side financial comparison of Great Lakes Dredge & Dock CORP (GLDD) and Iridium Communications Inc. (IRDM). Click either name above to swap in a different company.
Great Lakes Dredge & Dock CORP is the larger business by last-quarter revenue ($256.5M vs $219.1M, roughly 1.2× Iridium Communications Inc.). Iridium Communications Inc. runs the higher net margin — 9.9% vs 4.9%, a 4.9% gap on every dollar of revenue. On growth, Great Lakes Dredge & Dock CORP posted the faster year-over-year revenue change (26.5% vs 1.9%). Over the past eight quarters, Great Lakes Dredge & Dock CORP's revenue compounded faster (13.6% CAGR vs 4.4%).
Great Lakes Dredge and Dock Company is an American company providing construction services in dredging and land reclamation, currently the largest such provider in the United States. GLD&D operates primarily in the United States but conducts one-quarter of its business overseas. The company was based in Oak Brook, Illinois, but in October 2020 relocated its corporate headquarters to Houston, Texas.
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...
GLDD vs IRDM — Head-to-Head
Income Statement — Q4 FY2025 vs Q1 FY2026
| Metric | | |
|---|---|---|
| Revenue | $256.5M | $219.1M |
| Net Profit | $12.6M | $21.6M |
| Gross Margin | 20.9% | — |
| Operating Margin | 12.7% | 23.2% |
| Net Margin | 4.9% | 9.9% |
| Revenue YoY | 26.5% | 1.9% |
| Net Profit YoY | -35.9% | — |
| EPS (diluted) | $0.19 | — |
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 | $256.5M | $212.9M | ||
| Q3 25 | $195.2M | $226.9M | ||
| Q2 25 | $193.8M | $216.9M | ||
| Q1 25 | $242.9M | $214.9M | ||
| Q4 24 | $202.8M | $213.0M | ||
| Q3 24 | $191.2M | $212.8M | ||
| Q2 24 | $170.1M | $201.1M |
| Q1 26 | — | $21.6M | ||
| Q4 25 | $12.6M | $24.9M | ||
| Q3 25 | $17.7M | $37.1M | ||
| Q2 25 | $9.7M | $22.0M | ||
| Q1 25 | $33.4M | $30.4M | ||
| Q4 24 | $19.7M | $36.3M | ||
| Q3 24 | $8.9M | $24.4M | ||
| Q2 24 | $7.7M | $32.3M |
| Q1 26 | — | — | ||
| Q4 25 | 20.9% | — | ||
| Q3 25 | 22.4% | — | ||
| Q2 25 | 18.9% | — | ||
| Q1 25 | 28.6% | — | ||
| Q4 24 | 24.1% | — | ||
| Q3 24 | 19.0% | — | ||
| Q2 24 | 17.5% | — |
| Q1 26 | — | 23.2% | ||
| Q4 25 | 12.7% | 25.9% | ||
| Q3 25 | 14.4% | 30.9% | ||
| Q2 25 | 8.8% | 23.2% | ||
| Q1 25 | 20.6% | 28.1% | ||
| Q4 24 | 14.8% | 24.5% | ||
| Q3 24 | 8.7% | 25.8% | ||
| Q2 24 | 8.6% | 21.7% |
| Q1 26 | — | 9.9% | ||
| Q4 25 | 4.9% | 11.7% | ||
| Q3 25 | 9.1% | 16.4% | ||
| Q2 25 | 5.0% | 10.1% | ||
| Q1 25 | 13.8% | 14.2% | ||
| Q4 24 | 9.7% | 17.1% | ||
| Q3 24 | 4.6% | 11.5% | ||
| Q2 24 | 4.5% | 16.1% |
| Q1 26 | — | — | ||
| Q4 25 | $0.19 | $0.24 | ||
| Q3 25 | $0.26 | $0.35 | ||
| Q2 25 | $0.14 | $0.20 | ||
| Q1 25 | $0.49 | $0.27 | ||
| Q4 24 | $0.29 | $0.30 | ||
| Q3 24 | $0.13 | $0.21 | ||
| Q2 24 | $0.11 | $0.27 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $13.4M | — |
| Total DebtLower is stronger | $378.2M | — |
| Stockholders' EquityBook value | $517.1M | — |
| Total Assets | $1.3B | — |
| Debt / EquityLower = less leverage | 0.73× | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $13.4M | $96.5M | ||
| Q3 25 | $12.7M | $88.5M | ||
| Q2 25 | $2.9M | $79.3M | ||
| Q1 25 | $11.3M | $50.9M | ||
| Q4 24 | $10.2M | $93.5M | ||
| Q3 24 | $12.0M | $159.6M | ||
| Q2 24 | $23.1M | $63.5M |
| Q1 26 | — | — | ||
| Q4 25 | $378.2M | $1.8B | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | $448.2M | $1.8B | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — |
| Q1 26 | — | — | ||
| Q4 25 | $517.1M | $462.6M | ||
| Q3 25 | $502.1M | $450.5M | ||
| Q2 25 | $481.9M | $473.6M | ||
| Q1 25 | $479.9M | $518.4M | ||
| Q4 24 | $448.9M | $576.6M | ||
| Q3 24 | $425.4M | $663.8M | ||
| Q2 24 | $418.0M | $786.7M |
| Q1 26 | — | — | ||
| Q4 25 | $1.3B | $2.5B | ||
| Q3 25 | $1.3B | $2.6B | ||
| Q2 25 | $1.2B | $2.6B | ||
| Q1 25 | $1.2B | $2.6B | ||
| Q4 24 | $1.3B | $2.7B | ||
| Q3 24 | $1.1B | $2.8B | ||
| Q2 24 | $1.1B | $2.7B |
| Q1 26 | — | — | ||
| Q4 25 | 0.73× | 3.80× | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | 1.00× | 3.05× | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — |
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 | $79.7M | — |
| Free Cash FlowOCF − Capex | $50.3M | — |
| FCF MarginFCF / Revenue | 19.6% | — |
| Capex IntensityCapex / Revenue | 11.5% | 13.7% |
| Cash ConversionOCF / Net Profit | 6.31× | — |
| TTM Free Cash FlowTrailing 4 quarters | $99.5M | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $79.7M | $108.6M | ||
| Q3 25 | $49.2M | $100.8M | ||
| Q2 25 | $56.9M | $129.6M | ||
| Q1 25 | $60.9M | $61.1M | ||
| Q4 24 | $-13.5M | $104.8M | ||
| Q3 24 | $26.8M | $118.6M | ||
| Q2 24 | $18.4M | $81.1M |
| Q1 26 | — | — | ||
| Q4 25 | $50.3M | $75.1M | ||
| Q3 25 | $13.2M | $79.2M | ||
| Q2 25 | $-3.7M | $108.9M | ||
| Q1 25 | $39.6M | $36.5M | ||
| Q4 24 | $-36.1M | $80.5M | ||
| Q3 24 | $-11.5M | $100.0M | ||
| Q2 24 | $-34.0M | $68.7M |
| Q1 26 | — | — | ||
| Q4 25 | 19.6% | 35.3% | ||
| Q3 25 | 6.8% | 34.9% | ||
| Q2 25 | -1.9% | 50.2% | ||
| Q1 25 | 16.3% | 17.0% | ||
| Q4 24 | -17.8% | 37.8% | ||
| Q3 24 | -6.0% | 47.0% | ||
| Q2 24 | -20.0% | 34.2% |
| Q1 26 | — | 13.7% | ||
| Q4 25 | 11.5% | 15.7% | ||
| Q3 25 | 18.4% | 9.5% | ||
| Q2 25 | 31.3% | 9.5% | ||
| Q1 25 | 8.7% | 11.4% | ||
| Q4 24 | 11.2% | 11.4% | ||
| Q3 24 | 20.0% | 8.7% | ||
| Q2 24 | 30.8% | 6.2% |
| Q1 26 | — | — | ||
| Q4 25 | 6.31× | 4.37× | ||
| Q3 25 | 2.77× | 2.71× | ||
| Q2 25 | 5.87× | 5.90× | ||
| Q1 25 | 1.82× | 2.01× | ||
| Q4 24 | -0.69× | 2.88× | ||
| Q3 24 | 3.02× | 4.85× | ||
| Q2 24 | 2.39× | 2.51× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
GLDD
Segment breakdown not available.
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% |
