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Lennox International vs Aaon: LII and AAON compared
Lennox International is the larger company: $1.6B of revenue in its latest quarter (Q3 2026) against $627M for Aaon (Q2 2026). Aaon is growing faster (+101% against +10% a year earlier). Lennox International is more profitable, with an operating margin of 19.8% against 11.0%.
Where the money goes: LII and AAON
Lennox International (LII) · Q3 2026
Lennox International, Q3 2026: revenue $1.6B (+10% year over year), operating margin 19.8%, net earnings $221M, operating cash flow $395M. The chart follows the revenue to costs, profit and cash.
Aaon (AAON) · Q2 2026
Aaon, Q2 2026: revenue $627M (+101% year over year), operating margin 11.0%, net earnings $56.7M, operating cash flow $21.0M. The chart follows the revenue to costs, profit and cash.
| Lennox International (LII) | Aaon (AAON) | |
|---|---|---|
| Latest quarter | Q3 2026 | Q2 2026 |
| Revenue | $1.6B | $627M |
| Revenue growth, Y/Y | +10% | +101% |
| Gross margin | 31.6% | 24.3% |
| Operating margin | 19.8% | 11.0% |
| Net earnings | $221M | $56.7M |
| Net margin | 14.1% | 9.0% |
| Operating cash flow | $395M | $21.0M |
| Free cash flow | $362M | — |
| Market value | $11.7B | $4.8B |
| P/E | 15.7× | 30.1× |
| Analysts’ mean target | $371.92 | $128.50 |
Where the revenue comes from
Lennox International
- Residential Heating and Cooling: $937M (60%)
- Commercial Heating and Cooling: $635M (40%)
Aaon
- AAON Oklahoma: $262M (42%)
- BasX: $218M (35%)
- AAON Coil Products: $147M (23%)
Questions
Which is bigger, Lennox International or Aaon?
Lennox International is the larger company: $1.6B of revenue in its latest quarter (Q3 2026) against $627M for Aaon (Q2 2026).
Is Lennox International or Aaon growing faster?
Aaon is growing faster (+101% against +10% a year earlier).
Which is more profitable, Lennox International or Aaon?
Lennox International is more profitable, with an operating margin of 19.8% against 11.0%.
More: Lennox International earnings · how Lennox International makes money · Aaon earnings · how Aaon makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Oct 28, 2026; 10-Q filed Aug 10, 2026). Fiscal quarters can end on different dates. Not investment advice.