Carbon Blue vs Luminescent
Carbon Blue vs Luminescent, compared side by side on 20 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: Carbon Blue is on 54/100 and Luminescent on 54/100.
Where each one leads
Carbon Blue
- domain rating: 52/100 against 29/100
- funding raised: $10.0M against $7.0M
- LinkedIn following: 3,735 against 2,953
Luminescent
- headcount: 48 against 20
At a glance
| Measure | Carbon Blue | Luminescent |
|---|---|---|
| What it is | Technology that removes CO2 from water, turning water infrastructure into carbon capture facilities. | Transforms waste heat into zero-emission electricity using an isothermal heat engine. |
| Category | Cleantech, Carbon Removal, Climate Tech, Carbon Capture | Cleantech, Energy, Electricity, Thermal |
| Sells toBusiness model | B2B | B2B |
| Offering | Technology | Hardware |
| Founded | 2022 | 2020 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Carbon Blue | Luminescent |
|---|---|---|
| Employees | 20 | 48 |
| Headcount growthLast 12 months | +54.1% | Not published |
| Total funding | $10.0M | $7.0M |
| Latest round | Seed | Seed |
| LinkedIn followers | 3,735 | 2,953 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Carbon Blue | Luminescent |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 54/100 | 54/100 |
| Traction | 48/100 | 51/100 |
| Team | 60/100 | 60/100 |
| Search visibility | 30/100 | 33/100 |
| Quality | 58/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (41/100) | D (40/100) |
| Domain ratingLink authority, 0-100 | 52/100 | 29/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Carbon Blue | Luminescent |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | WordPress | WordPress |
| Frameworks | Jquery | Not detected |
| Support stack | Not detected | HubSpot |
Carbon Blue vs Luminescent: common questions
Which is better, Carbon Blue or Luminescent?
Both score the same on our 0-100 rating, so the choice comes down to the 20 data points in the tables above rather than overall company strength.
How do Carbon Blue and Luminescent compare on the numbers?
Carbon Blue leads on domain rating (52/100 against 29/100), funding raised ($10.0M against $7.0M), LinkedIn following (3,735 against 2,953). Luminescent leads on headcount (48 against 20).
Read the full Carbon Blue review and pricing or the Luminescent review and pricing. You can also browse other Carbon Blue alternatives we track.

