Apollo Atomics vs Radiant
Apollo Atomics vs Radiant, compared side by side on 14 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: Apollo Atomics is on 39/100 and Radiant on 66/100.
Where each one leads
Apollo Atomics
- agent readiness: 42/100 against 26/100
Radiant
- our overall score: 66/100 against 39/100
- domain rating: 50/100 against 32/100
- funding raised: $518M against $26.5M
At a glance
| Measure | Apollo Atomics | Radiant |
|---|---|---|
| What it is | Shrinking a key nuclear reactor part to make nuclear power cheaper than natural gas. | Building the world's first mass-produced portable nuclear generators for anywhere power delivery. |
| Category | Nuclear Power, Clean Energy, Hardware, Advanced Materials | Nuclear Energy, Defense, Clean Energy, Manufacturing |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2025 | 2020 |
| Headquarters | Cambridge, United States | El Segundo, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Apollo Atomics | Radiant |
|---|---|---|
| Employees | Not published | 384 |
| Total funding | $26.5M | $518M |
| Latest round | Debt | Series D |
| LinkedIn followers | Not published | 994 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Apollo Atomics | Radiant |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 39/100 | 66/100 |
| Traction | 37/100 | 60/100 |
| Team | 70/100 | 30/100 |
| Search visibility | Not published | 72/100 |
| Quality | Not published | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (42/100) | F (26/100) |
| Domain ratingLink authority, 0-100 | 32/100 | 50/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Apollo Atomics | Radiant |
|---|---|---|
| CDN | Not detected | Cloudflare |
| CMS | Framer | Not detected |
Apollo Atomics vs Radiant: common questions
Which is better, Apollo Atomics or Radiant?
On our 0-100 score Radiant rates higher (66/100 against 39/100). 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 14 data points above: read the rows that match what you are buying for.
How do Apollo Atomics and Radiant compare on the numbers?
Apollo Atomics leads on agent readiness (42/100 against 26/100). Radiant leads on our overall score (66/100 against 39/100), domain rating (50/100 against 32/100), funding raised ($518M against $26.5M).
Read the full Apollo Atomics review and pricing or the Radiant review and pricing. You can also browse other Apollo Atomics alternatives we track.