Castelion vs Silvus Technologies
Castelion vs Silvus Technologies, compared side by side on 13 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 Silvus Technologies on 69/100.
Where each one leads
Castelion
- agent readiness: 39/100 against 32/100
Silvus Technologies
- our overall score: 69/100 against 60/100
- domain rating: 51/100 against 43/100
At a glance
| Measure | Castelion | Silvus Technologies |
|---|---|---|
| What it is | Defense startup mass-producing affordable hypersonic missile systems for the U.S. military, founded by ex-SpaceX engineers. | Global leader in advanced tactical networking and electromagnetic spectrum operations (EMSO). |
| Category | Defense, Hypersonic, Missiles, Aerospace | Defense, Telecommunications, Networking, Hardware |
| Sells toBusiness model | B2G | B2B |
| Offering | Hardware | Hardware |
| Founded | 2022 | 2010 |
| Headquarters | El Segundo, United States | Los Angeles, USA |
| Status | Active | Active |
Size, funding and growth
| Measure | Castelion | Silvus Technologies |
|---|---|---|
| Employees | 100 | Not published |
| Total funding | $1.1B | Not published |
| Latest round | Series C | Not published |
| Valuation | $13B | $1.1B |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Castelion | Silvus Technologies |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 60/100 | 69/100 |
| Traction | 58/100 | Not published |
| Team | 10/100 | 12/100 |
| Search visibility | 29/100 | Not published |
| Quality | 78/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | F (39/100) | F (32/100) |
| Domain ratingLink authority, 0-100 | 43/100 | 51/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Castelion | Silvus Technologies |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | WordPress | Not detected |
| Frameworks | Jquery, Bootstrap | Not detected |
| Analytics | Google Tag Manager | Not detected |
What users say
| Measure | Castelion | Silvus Technologies |
|---|---|---|
| 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 Silvus Technologies: common questions
Which is better, Castelion or Silvus Technologies?
On our 0-100 score Silvus Technologies rates higher (69/100 against 60/100). 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 13 data points above: read the rows that match what you are buying for.
How do Castelion and Silvus Technologies compare on the numbers?
Castelion leads on agent readiness (39/100 against 32/100). Silvus Technologies leads on our overall score (69/100 against 60/100), domain rating (51/100 against 43/100).
What do real users say about Castelion and Silvus Technologies?
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 Silvus Technologies review and pricing. You can also browse other Castelion alternatives we track.

