Rocket Lab vs SpaceX

Career launches

Rocket Lab: 97 (Electron)SpaceX: 636 (Falcon 9 Block 5)

Success rate

Rocket Lab: 95.9%SpaceX: 99.8%

Launch price

Rocket Lab: ~$9.2M (average revenue per launch, H1 2026)SpaceX: ~$74M

Market cap

Rocket Lab: $40.1BSpaceX: $1.94T

Both companies build their own launch vehicles, spacecraft and components. SpaceX operates at far larger scale with Falcon 9, Starship and Starlink, while Rocket Lab has built a space systems business alongside Electron launches through Photon spacecraft and acquisitions in solar cells, reaction wheels and separation systems.

The Vertical Integration Playbook

SpaceX describes itself as vertically integrated: it designs and manufactures a significant portion of its components in-house, including engines, avionics, structures and software, and most of its launches carry its own Starlink satellites (28 of its 38 launches in Q2 2026 were internal). Rocket Lab has followed a similar path at smaller scale. Through acquisitions, among them Sinclair Interplanetary (2020), Advanced Solutions Inc (2021), Planetary Systems Corp (separation systems, 2021) and SolAero (space solar cells, 2022), it has assembled the parts to supply complete satellite missions.

The difference in scale is large. SpaceX's FY2025 revenue of $18.67 billion (consolidated, including the xAI and X businesses it now owns) was about 31 times Rocket Lab's $601.8 million, and since its June 2026 Nasdaq listing (SPCX) its market cap has run to roughly 48 times Rocket Lab's. Rocket Lab's space systems business (spacecraft, solar power, reaction wheels, star trackers and separation systems) brought in $402.8 million in FY2025, about twice its $199.0 million of launch revenue.

Neutron: Challenging Falcon 9

Neutron is Rocket Lab's move from small launch into medium lift, aimed at constellation deployment and national security missions; Rocket Lab says it could ultimately be configured for human spaceflight. Rocket Lab says Neutron will carry 13,000 kg to low Earth orbit with its first stage recovered: the stage is designed to land on a sea platform, powered by nine Archimedes engines (liquid oxygen and methane, oxidizer-rich staged combustion). Its "Hungry Hippo" fairing stays attached to the first stage and opens like a clamshell to release the second stage.

Neutron would compete with a Falcon 9 that has flown since 2010 (about 620 launches by March 2026, per SpaceX) and whose boosters are routinely reused: 157 of the 165 Falcon 9 launches in 2025 used flight-proven boosters, and the fleet leader, B1067, flew its 37th mission on August 25, 2026. Rocket Lab says the captive fairing removes the need for fairing recovery and speeds turnaround. Neutron has not flown. Rocket Lab has targeted delivery of the vehicle to its Virginia launch pad in the fourth quarter of 2026, and said in August 2026 that the window for a launch before the end of the year is narrowing.

Different Scale, Similar Model

Starlink is SpaceX's largest business: the Connectivity segment brought in $11.39 billion of SpaceX's $18.67 billion in FY2025 revenue, with about 10.3 million subscribers by March 2026. Rocket Lab does not yet operate a constellation of its own. Its larger business is building spacecraft and components for other operators, including 18 satellites for the Space Development Agency under a contract worth up to $816 million. In June 2026 Rocket Lab agreed to acquire Iridium, a satellite communications operator, in a deal valuing Iridium at about $8.0 billion; the companies expect it to close in mid-2027.