Rocket Lab and Firefly Aerospace entered 2026 with different investment profiles. Rocket Lab has the larger operating base, while Firefly is expanding rapidly from a much smaller platform built around lunar missions, launch vehicles, spacecraft and defense software.
Firefly also extended a Lockheed Martin agreement covering as many as 25 Alpha launches through 2031.
The company’s lunar business has provided its clearest operational milestone. Firefly’s Alpha rocket returned to flight in March 2026 after a 2025 stage-separation failure and a test-stand explosion; the seventh flight reached orbit and was used to validate systems for the larger Block II configuration.
Rocket Lab’s scale comes with continuing investment demands. Neutron’s first launch remains targeted for the fourth quarter of 2026, and the company is also pursuing acquisitions and a broader satellite-and-communications platform.
The comparison therefore turns on execution versus upside. Rocket Lab has a larger backlog, higher revenue, a long record of Electron launches and broader end-to-end capabilities, but its valuation depends heavily on continued growth and successful Neutron development. Firefly is growing faster in percentage terms and has demonstrated lunar capability, yet it remains earlier in its launch business and continues to post substantial losses. On the verified operating record available for 2026, Rocket Lab appears the stronger choice for investors prioritizing scale and execution, while Firefly represents the more speculative growth case.