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Sidus Space vs Spok: revenue, profit, margins and growth compared

Sidus Space brought in $3.4M of revenue in fiscal 2025, Spok $139.7M in fiscal 2025. Revenue changed by -27.6% at Sidus Space and +1.5% at Spok on the year before, so Spok grew faster. Sidus Space kept -871.0% of its revenue as net profit, Spok 11.4%. Free cash flow was -$26.3M at Sidus Space and $25.2M at Spok.

Side by side, latest fiscal year

SIDUSPOK
Fiscal year endedFY2025 (December 31, 2025)FY2025 (December 31, 2025)
Revenue$3.4M$139.7M
Revenue growth-27.6%+1.5%
Net income-$29.5M$15.9M
Net margin-871.0%11.4%
Free cash flow-$26.3M$25.2M
Free cash flow margin-778.0%18.0%
Earnings per share (diluted)-$1.19$0.75
Cash$43.2M$25.3M
Debtn/an/a
Price to earningsn/a13.9
Market value$214.6M$218.8M
Dividend yieldn/a11.95%
Rank by revenue in sector#51 of 51 · Telecommunications#39 of 51 · Telecommunications

Over the years

Revenue
SIDU FY2021: $1.8MSIDU FY2021: $1.4MSIDU FY2022: $7.3MSIDU FY2023: $6MSIDU FY2024: $4.7MSIDU FY2025: $3.4MSPOK FY2018: $169.5MSPOK FY2019: $160.3MSPOK FY2020: $148.2MSPOK FY2021: $142.2MSPOK FY2022: $134.5MSPOK FY2023: $139MSPOK FY2024: $137.7MSPOK FY2025: $139.7MFY18FY19FY20FY21FY22FY23FY24FY25
SIDU $3.4MSPOK $139.7M
Net income
SIDU FY2021: -$1.5MSIDU FY2021: -$3.7MSIDU FY2022: -$12.8MSIDU FY2023: -$14.3MSIDU FY2024: -$17.5MSIDU FY2025: -$29.5MSPOK FY2018: -$1.5MSPOK FY2019: -$10.8MSPOK FY2020: -$44.2MSPOK FY2021: -$22.2MSPOK FY2022: $21.9MSPOK FY2023: $15.7MSPOK FY2024: $15MSPOK FY2025: $15.9MFY18FY19FY20FY21FY22FY23FY24FY25
SIDU -$29.5MSPOK $15.9M
Net margin
SIDU FY2021: -85.4%SIDU FY2021: -265.9%SIDU FY2022: -176.0%SIDU FY2023: -240.3%SIDU FY2024: -375.0%SIDU FY2025: -871.0%SPOK FY2018: -0.9%SPOK FY2019: -6.7%SPOK FY2020: -29.8%SPOK FY2021: -15.6%SPOK FY2022: 16.2%SPOK FY2023: 11.3%SPOK FY2024: 10.9%SPOK FY2025: 11.4%FY18FY19FY20FY21FY22FY23FY24FY25
SIDU -871.0%SPOK 11.4%
Revenue growth
SIDU FY2021: -22.0%SIDU FY2022: +417.7%SIDU FY2023: -18.2%SIDU FY2024: -21.6%SIDU FY2025: -27.6%SPOK FY2019: -5.4%SPOK FY2020: -7.6%SPOK FY2021: -4.1%SPOK FY2022: -5.4%SPOK FY2023: +3.3%SPOK FY2024: -1.0%SPOK FY2025: +1.5%FY19FY20FY21FY22FY23FY24FY25
SIDU -27.6%SPOK +1.5%
Free cash flow
SIDU FY2021: -$1.6MSIDU FY2021: -$2.7MSIDU FY2022: -$14.2MSIDU FY2023: -$19MSIDU FY2024: -$23.3MSIDU FY2025: -$26.3MSPOK FY2018: $4.4MSPOK FY2019: $6.9MSPOK FY2020: $22.7MSPOK FY2021: $3.6MSPOK FY2022: $2.7MSPOK FY2023: $22.8MSPOK FY2024: $25.7MSPOK FY2025: $25.2MFY18FY19FY20FY21FY22FY23FY24FY25
SIDU -$26.3MSPOK $25.2M

Fiscal years as each company reports them; the two may end in different months.

Questions about Sidus Space and Spok

Which is bigger by revenue, Sidus Space or Spok?

Spok is bigger by revenue: $139.7M in fiscal 2025, against $3.4M for Sidus Space in fiscal 2025.

Which keeps more of its revenue as profit, Sidus Space or Spok?

Sidus Space had a net margin of -871.0% in fiscal 2025; Spok had 11.4% in fiscal 2025.

Which grew revenue faster, Sidus Space or Spok?

In their latest fiscal years revenue changed by -27.6% at Sidus Space and +1.5% at Spok.

Where do these numbers come from?

From the annual reports each company files with the SEC (10-K, or 20-F and 40-F for foreign companies), read from their XBRL data. Margins and growth are simple arithmetic on those figures. Nothing here is a recommendation.

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