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Heartflow vs Si-Bone: HTFL and SIBN compared
Heartflow is the larger company: $64.1M of revenue in its latest quarter (Q2 2026) against $55.7M for Si-Bone (Q3 2026). Heartflow is growing faster (+48% against +14% a year earlier). Si-Bone is more profitable, with an operating margin of -7.8% against -27.9%.
Where the money goes: HTFL and SIBN
Heartflow (HTFL) · Q2 2026
Heartflow, Q2 2026: revenue $64.1M (+48% year over year), operating margin -27.9%, net loss $15.7M, operating cash flow −$8.6M. The chart follows the revenue to costs, profit and cash.
Si-Bone (SIBN) · Q3 2026
Si-Bone, Q3 2026: revenue $55.7M (+14% year over year), operating margin -7.8%, net loss $3.6M, operating cash flow $5.9M. The chart follows the revenue to costs, profit and cash.
| Heartflow (HTFL) | Si-Bone (SIBN) | |
|---|---|---|
| Latest quarter | Q2 2026 | Q3 2026 |
| Revenue | $64.1M | $55.7M |
| Revenue growth, Y/Y | +48% | +14% |
| Operating margin | -27.9% | -7.8% |
| Net earnings | −$15.7M | −$3.6M |
| Net margin | -24.6% | -6.5% |
| Operating cash flow | −$8.6M | $5.9M |
Questions
Which is bigger, Heartflow or Si-Bone?
Heartflow is the larger company: $64.1M of revenue in its latest quarter (Q2 2026) against $55.7M for Si-Bone (Q3 2026).
Is Heartflow or Si-Bone growing faster?
Heartflow is growing faster (+48% against +14% a year earlier).
Which is more profitable, Heartflow or Si-Bone?
Si-Bone is more profitable, with an operating margin of -7.8% against -27.9%.
More: Heartflow earnings · how Heartflow makes money · Si-Bone earnings · how Si-Bone makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Aug 13, 2026; 10-Q filed Nov 3, 2026). Fiscal quarters can end on different dates. Not investment advice.