Globalstar vs Iridium: Communications constellations compared

November 2026 edition · assessment by Frontier Tech Intelligence

Iridium ranks 24 on the Space 100 with a score of 80; Globalstar ranks 46 with 75. Iridium is ahead on deployment, commercials and positioning. Level on production, progress, technology, firepower and leverage. Globalstar is based in Covington, United States, Iridium in McLean, United States. Globalstar: Subsidiary. Iridium: Subsidiary. Globalstar is named in 24 signals and Iridium in 23.

Globalstar →

Covington, Louisiana, United States · Space · Satellites & spacecraft / Communications constellations · Subsidiary · globalstar.com

Globalstar sells satellite connectivity and IoT tracking services to marine, logistics, industrial and consumer customers through products such as SmartOne Solar.

Space 100 · rank 46 · score 75

Scores, Space (of 10)

Deployment9
Production6
Commercials8
Progress10
Technology6
Positioning6
Firepower8
Leverage8

Darker bar: ahead of the other company on that measure.

Positioning

Globalstar is a US satellite operator running a legacy LEO fleet (powering Apple's Emergency SOS and IoT), with Q2-26 revenue of $64.8M (~$270M run-rate, Apple wholesale capacity $40.1M of Q2) and its first eight MDA-built HIBLEO-4 replacement satellites launched in August 2026. It is being acquired by Amazon ($90.00 cash or 0.3210 AMZN shares, an 8-K in April 2026, close expected 2027), making the Apple satellite partner Amazon's second space-connectivity move (alongside Amazon Leo). Its FY26 outlook is suspended pending the merger.

Latest signals

  • U.S. regulators approved Amazon’s acquisition of Globalstar despite Yippy’s objection.Heise
  • Amazon is pursuing an acquisition of Globalstar despite an objection.Heise
  • Amazon received FCC approval to acquire Globalstar.Via Satellite

24 signals name Globalstar.

Facts, with sources

  • Amazon expects to close the Globalstar acquisition in 2027 pending regulatory approvalsSpaceNews
  • OpenTug and Globalstar are modernizing barge visibility with satellite trackingGlobalstar
  • Opsealog and Identec Solutions partnered to enhance Shell support-vessel operations using Globalstar connectivityGlobalstar

27 facts on file.

Iridium →

McLean, Virginia, United States · Space · Satellites & spacecraft / Communications constellations · Subsidiary · iridium.com

Iridium operates a global satellite network providing voice, IoT, maritime safety, tracking, and satellite-to-device connectivity services to commercial, enterprise, and government customers.

Space 100 · rank 24 · score 80

Scores, Space (of 10)

Deployment10
Production6
Commercials9
Progress10
Technology6
Positioning8
Firepower8
Leverage8

Darker bar: ahead of the other company on that measure.

Positioning

Iridium is a US satellite operator (Nasdaq:IRDM) running a 66-satellite operational L-band constellation with decades of continuous global service (voice, data, IoT, PNT) and FY25 revenue of ~$830M (75% recurring service). It is being acquired by Rocket Lab in a ~$8B pending deal, the largest space-sector M&A of the cycle, creating a vertically integrated space platform projected at ~$1.8B 2026 revenue near break-even. PNT (GPS-alternative timing) is its growth segment.

Latest signals

  • Altair Semiconductor is integrating Iridium NTN Direct into its cellular IoT chipsets.Electronics Weekly
  • Rocket Lab CFO predicts increased M&A activity in the space industryPayload
  • Iridium and SKYWAVE partnered to advance satellite IoT for heavy-equipment manufacturers.Iridium

23 signals name Iridium.

Facts, with sources

  • Introduced the SOLION-100 terminal combining maritime safety and tracking functionsIridium
  • Iridium, Deutsche Telekom IoT, and Toyota demonstrated voice messaging over satellite using Iridium NTN DirectIridium
  • Iridium and SKYWAVE partnered to advance satellite IoT for heavy-equipment manufacturersIridium

35 facts on file.

More comparisons

Questions this page answers

Globalstar or Iridium: which is ahead in space?

Iridium ranks 24 on the Space 100 with a score of 80; Globalstar ranks 46 with 75. Iridium is ahead on deployment, commercials and positioning. Level on production, progress, technology, firepower and leverage. Globalstar is based in Covington, United States, Iridium in McLean, United States. Globalstar: Subsidiary. Iridium: Subsidiary. Globalstar is named in 24 signals and Iridium in 23.

How do Globalstar and Iridium compare?

Iridium ranks 24 on the Space 100 with a score of 80; Globalstar ranks 46 with 75. Iridium is ahead on deployment, commercials and positioning. Level on production, progress, technology, firepower and leverage. Globalstar is based in Covington, United States, Iridium in McLean, United States. Globalstar: Subsidiary. Iridium: Subsidiary. Globalstar is named in 24 signals and Iridium in 23. Both company files carry the scores on eight measures, the facts with sources and the latest signals.

Every comparison here comes from the same files members use every day.

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