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Birchtech vs Quantum-Si: BCHT and QSI compared
Birchtech is the larger company: $3.8M of revenue in its latest quarter (Q2 2026) against $212K for Quantum-Si (Q3 2026). Birchtech is growing faster (+16% against -62% a year earlier).
Where the money goes: BCHT and QSI
Birchtech (BCHT) · Q2 2026
Birchtech, Q2 2026: revenue $3.8M (+16% year over year), operating margin -42.8%, net loss $3.0M, operating cash flow −$2.8M. The chart follows the revenue to costs, profit and cash.
Quantum-Si (QSI) · Q3 2026
Quantum-Si, Q3 2026: revenue $212K (-62% year over year), net loss $22.3M, operating cash flow −$20.5M. The chart follows the revenue to costs, profit and cash.
| Birchtech (BCHT) | Quantum-Si (QSI) | |
|---|---|---|
| Latest quarter | Q2 2026 | Q3 2026 |
| Revenue | $3.8M | $212K |
| Revenue growth, Y/Y | +16% | -62% |
| Operating margin | -42.8% | n/m |
| Net earnings | −$3.0M | −$22.3M |
| Net margin | -79.6% | — |
| Operating cash flow | −$2.8M | −$20.5M |
Where the revenue comes from
Birchtech
- Product Revenue: $3.5M (91%)
- Equipment Revenue: $259K (7%)
- Demonstrations & Services revenue: $66K (2%)
Quantum-Si
- Product: $173K (82%)
- Service: $39K (18%)
Questions
Which is bigger, Birchtech or Quantum-Si?
Birchtech is the larger company: $3.8M of revenue in its latest quarter (Q2 2026) against $212K for Quantum-Si (Q3 2026).
Is Birchtech or Quantum-Si growing faster?
Birchtech is growing faster (+16% against -62% a year earlier).
More: Birchtech earnings · how Birchtech makes money · Quantum-Si earnings · how Quantum-Si makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Aug 13, 2026; 10-Q filed Nov 5, 2026). Fiscal quarters can end on different dates. Not investment advice.