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Spok Holdings vs Sidus Space: SPOK and SIDU compared
Spok Holdings is the larger company: $33.0M of revenue in its latest quarter (Q3 2026) against $583K for Sidus Space (Q2 2026). Spok Holdings is growing faster (-3% against -54% a year earlier). Spok Holdings is more profitable, with an operating margin of 17.1% against -976.2%.
Where the money goes: SPOK and SIDU
Spok Holdings (SPOK) · Q3 2026
Spok Holdings, Q3 2026: revenue $33.0M (-3% year over year), operating margin 17.1%, net earnings $9.7M, operating cash flow $13.0M. The chart follows the revenue to costs, profit and cash.
Sidus Space (SIDU) · Q2 2026
Sidus Space, Q2 2026: revenue $583K (-54% year over year), operating margin -976.2%, net loss $4.8M, operating cash flow −$3.5M. The chart follows the revenue to costs, profit and cash.
| Spok Holdings (SPOK) | Sidus Space (SIDU) | |
|---|---|---|
| Latest quarter | Q3 2026 | Q2 2026 |
| Revenue | $33.0M | $583K |
| Revenue growth, Y/Y | -3% | -54% |
| Operating margin | 17.1% | -976.2% |
| Net earnings | $9.7M | −$4.8M |
| Net margin | 29.4% | -820.0% |
| Operating cash flow | $13.0M | −$3.5M |
| Free cash flow | $12.2M | — |
Where the revenue comes from
Spok Holdings
- Wireless revenue: $17.0M (51%)
- Software revenue: $16.0M (49%)
Sidus Space
- Manufacturing: $322K (55%)
- Space Related Products and Services Including Technology Hosting: $250K (43%)
- AI Related Products and Services: $7K (1%)
- Lease of Software: $4K (1%)
Questions
Which is bigger, Spok Holdings or Sidus Space?
Spok Holdings is the larger company: $33.0M of revenue in its latest quarter (Q3 2026) against $583K for Sidus Space (Q2 2026).
Is Spok Holdings or Sidus Space growing faster?
Spok Holdings is growing faster (-3% against -54% a year earlier).
Which is more profitable, Spok Holdings or Sidus Space?
Spok Holdings is more profitable, with an operating margin of 17.1% against -976.2%.
More: Spok Holdings earnings · how Spok Holdings makes money · Sidus Space earnings · how Sidus Space makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Oct 29, 2026; 10-Q filed Aug 13, 2026). Fiscal quarters can end on different dates. Not investment advice.