# Quantum Source Labs

**Source:** https://www.startuphub.ai/startups/quantum-source-labs
**Profile type:** Startup

> Developing practical photonic quantum computers using a novel photon-atom gate architecture.

## About

Quantum Source Labs is focused on building powerful, cost-effective, and fault-tolerant photonic quantum computers. Their core innovation lies in a unique photon-atom gate architecture that couples photonic and atomic qubits on a chip, enabling the generation of photons and the implementation of entanglement for advanced quantum computation.

## Key facts

- **Slug:** quantum-source-labs
- **Website:** http://www.qs-labs.com/
- **Location:** Palo Alto, United States
- **Founded:** 2021-10-01
- **Employees:** 66
- **Operating status:** Active
- **Total funding:** $79M
- **Sectors / tags:** Quantum Computing, Quantum Hardware, Quantum Software, AI Hardware & Chips, Semiconductor, Research & Development, Photonic Chip Design, Chip Design
- **Social:**
  - LinkedIn: https://www.linkedin.com/company/quantum-source-labs-ltd/
  - Twitter: https://x.com/QS_Labs

## Frequently asked

### What does Quantum Source Labs do?

Quantum Source Labs is focused on building powerful, cost-effective, and fault-tolerant photonic quantum computers. Their core innovation lies in a unique photon-atom gate architecture that couples photonic and atomic qubits on a chip, enabling the generation of photons and the implementation of entanglement for advanced quantum computation.

### What is Quantum Source Labs's revenue?

StartupHub estimates Quantum Source Labs's annual revenue at $12.6M (range $6.7M to $21.7M, 64% confidence), based on comparable companies in the sector.

### What is Quantum Source Labs's valuation?

StartupHub estimates Quantum Source Labs's effective valuation at $314.3M (range $196.3M to $471.0M, 15% confidence), based on comparable companies in the sector.

### How much funding has Quantum Source Labs raised?

Quantum Source Labs has raised a total of $79M in funding. The most recent round on record is Series A.

### Where is Quantum Source Labs headquartered?

Quantum Source Labs is headquartered in Palo Alto, United States.

### When was Quantum Source Labs founded?

Quantum Source Labs was founded in 2021.

### What industry does Quantum Source Labs operate in?

Quantum Source Labs operates in Quantum Computing, Quantum Hardware, Quantum Software, AI Hardware & Chips, Semiconductor, Research & Development.

### How many employees does Quantum Source Labs have?

Quantum Source Labs has approximately 66 people on record.

## JSON-LD

Structured data aligned with this page's `<script type="application/ld+json">` (included when the profile is server-rendered).

```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "BreadcrumbList",
      "itemListElement": [
        {
          "@type": "ListItem",
          "position": 1,
          "name": "Home",
          "item": "https://www.startuphub.ai"
        },
        {
          "@type": "ListItem",
          "position": 2,
          "name": "Startups",
          "item": "https://www.startuphub.ai/startups"
        },
        {
          "@type": "ListItem",
          "position": 3,
          "name": "Quantum Source Labs",
          "item": "https://www.startuphub.ai/startups/quantum-source-labs"
        }
      ]
    },
    {
      "@type": "ProfilePage",
      "@id": "https://www.startuphub.ai/startups/quantum-source-labs#webpage",
      "url": "https://www.startuphub.ai/startups/quantum-source-labs",
      "name": "Quantum Source Labs - AI Startup Profile | StartupHub.ai",
      "description": "This is the official profile of Quantum Source Labs. Quantum Source Labs is a startup founded in 2021, operating in Quantum Computing and Quantum Hardware. Developing practical photonic quantum computers using a novel photon-atom gate architecture. Headquartered in Palo Alto, United States. The company has approximately 66 employees.",
      "dateModified": "2026-05-26T10:09:11.225+00:00",
      "mainEntity": {
        "@id": "https://www.startuphub.ai/startups/quantum-source-labs#organization"
      }
    },
    {
      "@type": "Organization",
      "@id": "https://www.startuphub.ai/startups/quantum-source-labs#organization",
      "name": "Quantum Source Labs",
      "url": "http://www.qs-labs.com/",
      "logo": "https://cdn.startuphub.ai/storage/v1/object/public/entity-images/logos/ae8f0cc2-917a-4caa-8d1e-486e3d4a996e-square.webp",
      "image": "https://cdn.startuphub.ai/storage/v1/object/public/entity-images/logos/ae8f0cc2-917a-4caa-8d1e-486e3d4a996e-square.webp",
      "description": "This is the official profile of Quantum Source Labs. Quantum Source Labs is a startup founded in 2021, operating in Quantum Computing and Quantum Hardware. Developing practical photonic quantum computers using a novel photon-atom gate architecture. Headquartered in Palo Alto, United States. The company has approximately 66 employees.",
      "sameAs": [
        "https://www.linkedin.com/company/quantum-source-labs-ltd/",
        "https://x.com/QS_Labs",
        "https://www.startuphub.ai/startups/quantum-source-labs"
      ],
      "foundingDate": "2021-10-01",
      "numberOfEmployees": {
        "@type": "QuantitativeValue",
        "value": 66
      },
      "address": {
        "@type": "PostalAddress",
        "addressLocality": "Palo Alto",
        "addressCountry": "US"
      },
      "knowsAbout": [
        "Quantum Computing",
        "Quantum Hardware",
        "Quantum Software",
        "AI Hardware & Chips",
        "Semiconductor",
        "Research & Development",
        "Photonic Chip Design",
        "Chip Design"
      ]
    }
  ]
}
```