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ERock vs SCI Engineered Materials: EROC and SCIA compared
ERock is the larger company: $39.9M of revenue in its latest quarter (Q2 2026) against $8.1M for SCI Engineered Materials (Q3 2026). SCI Engineered Materials is growing faster (+52% against -42% a year earlier). SCI Engineered Materials is more profitable, with an operating margin of 12.4% against -49.8%.
Where the money goes: EROC and SCIA
ERock (EROC) · Q2 2026
ERock, Q2 2026: revenue $39.9M (-42% year over year), operating margin -49.8%, net loss $67.7M. The chart follows the revenue to costs, profit and cash.
SCI Engineered Materials (SCIA) · Q3 2026
SCI Engineered Materials, Q3 2026: revenue $8.1M (+52% year over year), operating margin 12.4%, net earnings $862K, operating cash flow $1.3M. The chart follows the revenue to costs, profit and cash.
| ERock (EROC) | SCI Engineered Materials (SCIA) | |
|---|---|---|
| Latest quarter | Q2 2026 | Q3 2026 |
| Revenue | $39.9M | $8.1M |
| Revenue growth, Y/Y | -42% | +52% |
| Gross margin | — | 21.0% |
| Operating margin | -49.8% | 12.4% |
| Net earnings | −$67.7M | $862K |
| Net margin | -169.8% | 10.7% |
| Operating cash flow | — | $1.3M |
| Free cash flow | — | $1.2M |
Where the revenue comes from
ERock
- Power System Sales Revenues: $26.5M (66%)
- Ongoing Services Revenues: $13.4M (34%)
Questions
Which is bigger, ERock or SCI Engineered Materials?
ERock is the larger company: $39.9M of revenue in its latest quarter (Q2 2026) against $8.1M for SCI Engineered Materials (Q3 2026).
Is ERock or SCI Engineered Materials growing faster?
SCI Engineered Materials is growing faster (+52% against -42% a year earlier).
Which is more profitable, ERock or SCI Engineered Materials?
SCI Engineered Materials is more profitable, with an operating margin of 12.4% against -49.8%.
More: ERock earnings · how ERock makes money · SCI Engineered Materials earnings · how SCI Engineered Materials makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Aug 12, 2026; 10-Q filed Oct 29, 2026). Fiscal quarters can end on different dates. Not investment advice.