Castelion vs CX2
Castelion vs CX2, compared side by side on 16 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Castelion is on 60/100 and CX2 on 51/100.
Where each one leads
Castelion
- our overall score: 60/100 against 51/100
- domain rating: 43/100 against 37/100
- headcount: 100 against 30
- funding raised: $1.1B against $31.0M
CX2
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Castelion | CX2 |
|---|---|---|
| What it is | Defense startup mass-producing affordable hypersonic missile systems for the U.S. military, founded by ex-SpaceX engineers. | Electronic warfare startup building AI-enabled hardware and software for electromagnetic spectrum defense. |
| Category | Defense, Hypersonic, Missiles, Aerospace | Defense, Electronic Warfare, AI, Hardware |
| Sells toBusiness model | B2G | Not published |
| Offering | Hardware | Not published |
| Founded | 2022 | 2024 |
| Headquarters | El Segundo, United States | El Segundo, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Castelion | CX2 |
|---|---|---|
| Employees | 100 | 30 |
| Total funding | $1.1B | $31.0M |
| Latest round | Series C | Series A |
| Valuation | $13B | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Castelion | CX2 |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 60/100 | 51/100 |
| Traction | 58/100 | 52/100 |
| Team | 10/100 | Not published |
| Search visibility | 29/100 | 15/100 |
| Quality | 78/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (39/100) | D (42/100) |
| Domain ratingLink authority, 0-100 | 43/100 | 37/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Castelion | CX2 |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | WordPress | Webflow |
| Frameworks | Jquery, Bootstrap | Not detected |
| Analytics | Google Tag Manager | Not detected |
What users say
| Measure | Castelion | CX2 |
|---|---|---|
| Reddit sentimentThreads we track | 1 positive, 3 negative across 6 threads | Not published |
“Hypersonic weapon startup Castelion wins $105 million Navy contract for F/A-18 integration. Castelion, a small California defense startup, has won a $105 million U.S. Navy contract to ready its Blackbeard hypersonic missile for use aboard ”r/FighterJets
Castelion vs CX2: common questions
Which is better, Castelion or CX2?
On our 0-100 score Castelion rates higher (60/100 against 51/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 16 data points above: read the rows that match what you are buying for.
How do Castelion and CX2 compare on the numbers?
Castelion leads on our overall score (60/100 against 51/100), domain rating (43/100 against 37/100), headcount (100 against 30), funding raised ($1.1B against $31.0M).
What do real users say about Castelion and CX2?
Castelion: 1 positive and 3 negative mentions across 6 Reddit threads we track, mostly in r/FighterJets.
Read the full Castelion review and pricing or the CX2 review and pricing. You can also browse other Castelion alternatives we track.