Castelion vs Integrate
Castelion vs Integrate, compared side by side on 19 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 Integrate on 55/100.
Where each one leads
Castelion
- our overall score: 60/100 against 55/100
- headcount: 100 against 41
- funding raised: $1.1B against $17.0M
Integrate
- agent readiness: 59/100 against 39/100
- domain rating: 55/100 against 43/100
At a glance
| Measure | Castelion | Integrate |
|---|---|---|
| What it is | Defense startup mass-producing affordable hypersonic missile systems for the U.S. military, founded by ex-SpaceX engineers. | A secure, AI-native project management platform for classified defense and government multi-entity collaboration. |
| Category | Defense, Hypersonic, Missiles, Aerospace | Government, Defense, Project Management, SaaS |
| Sells toBusiness model | B2G | B2G |
| Offering | Hardware | Software |
| Founded | 2022 | 2022 |
| Headquarters | El Segundo, United States | Seattle, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Castelion | Integrate |
|---|---|---|
| Employees | 100 | 41 |
| Total funding | $1.1B | $17.0M |
| 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 | Integrate |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 60/100 | 55/100 |
| Traction | 58/100 | 52/100 |
| Team | 10/100 | 30/100 |
| Search visibility | 29/100 | 25/100 |
| Quality | 78/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (39/100) | D (59/100) |
| Domain ratingLink authority, 0-100 | 43/100 | 55/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Castelion | Integrate |
|---|---|---|
| CDN | Cloudflare | Not detected |
| CMS | WordPress | Framer |
| Frameworks | Jquery, Bootstrap | Not detected |
| Analytics | Google Tag Manager | Google Analytics 4 |
What users say
| Measure | Castelion | Integrate |
|---|---|---|
| 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 Integrate: common questions
Which is better, Castelion or Integrate?
On our 0-100 score Castelion rates higher (60/100 against 55/100). 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 19 data points above: read the rows that match what you are buying for.
How do Castelion and Integrate compare on the numbers?
Castelion leads on our overall score (60/100 against 55/100), headcount (100 against 41), funding raised ($1.1B against $17.0M). Integrate leads on agent readiness (59/100 against 39/100), domain rating (55/100 against 43/100).
What do real users say about Castelion and Integrate?
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 Integrate review and pricing. You can also browse other Castelion alternatives we track.

