Defcon vs Lightmatter
Defcon vs Lightmatter, compared side by side on 17 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: Defcon is on 47/100 and Lightmatter on 63/100.
Where each one leads
Defcon
Leads on none of the measures we hold for both companies.
Lightmatter
- our overall score: 63/100 against 47/100
- domain rating: 57/100 against 33/100
- headcount: 318 against 52
- funding raised: $400M against $44.0M
- LinkedIn following: 63,729 against 3,784
At a glance
| Measure | Defcon | Lightmatter |
|---|---|---|
| What it is | The Defcon badges feature a unique open-source chip that doubles as a security key. | Developing photonic computing and interconnect technology to accelerate AI infrastructure and improve energy efficiency. |
| Category | Hardware, Cybersecurity, Semiconductors, Open Source | Hardware, Semiconductors, Photonics, AI Infrastructure |
| Sells toBusiness model | B2C | B2B |
| Offering | Hardware | Hardware |
| Founded | Not published | 2017 |
| Headquarters | McLean, United States | Mountain View, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Defcon | Lightmatter |
|---|---|---|
| Employees | 52 | 318 |
| Total funding | $44.0M | $400M |
| Latest round | Seed | Series D |
| Valuation | Not published | $4.4B |
| LinkedIn followers | 3,784 | 63,729 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Defcon | Lightmatter |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 47/100 | 63/100 |
| Traction | 55/100 | 60/100 |
| Team | Not published | 10/100 |
| Community | Not published | 8/100 |
| Search visibility | 22/100 | 39/100 |
| Quality | 58/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (47/100) | D (45/100) |
| Domain ratingLink authority, 0-100 | 33/100 | 57/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Defcon | Lightmatter |
|---|---|---|
| CDN | Not detected | Cloudflare |
| CMS | Squarespace | WordPress |
| Frameworks | Not detected | Alpinejs, Tailwind CSS |
| Analytics | Not detected | Google Analytics 4 |
What users say
| Measure | Defcon | Lightmatter |
|---|---|---|
| Reddit sentimentThreads we track | Not published | 1 positive, 0 negative across 5 threads |
“Lightmatter unveils Guide DR, the AI Industries first liquid-cooled laser NIC that quadruples rack density. This isn’t just a product update—it’s a fundamental rethink of how light powers the data center. The future of AI infrastructure is ”r/u/peterbordes
Defcon vs Lightmatter: common questions
Which is better, Defcon or Lightmatter?
On our 0-100 score Lightmatter rates higher (63/100 against 47/100). 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 17 data points above: read the rows that match what you are buying for.
How do Defcon and Lightmatter compare on the numbers?
Lightmatter leads on our overall score (63/100 against 47/100), domain rating (57/100 against 33/100), headcount (318 against 52), funding raised ($400M against $44.0M), LinkedIn following (63,729 against 3,784).
What do real users say about Defcon and Lightmatter?
Lightmatter: 1 positive and 0 negative mentions across 5 Reddit threads we track, mostly in r/u/peterbordes.
Read the full Defcon review and pricing or the Lightmatter review and pricing. You can also browse other Defcon alternatives we track.