Quantum-Si Overview
- Year Founded
-
2013
- Status
-
Public
- Employees
-
150
- Stock Symbol
-
QSI
- Investments
-
2
- Share Price
-
$1.73
- (As of Friday Closing)
Quantum-Si General Information
Description
Quantum-Si Inc is a life sciences company focused on the development and commercialization of proteomics research tools. The company has designed and developed a hardware, consumable, and software solution to provide a solution for protein detection and analysis. It has developed a proprietary universal single-molecule detection platform that enables Next-Generation Protein Sequencing (NGPS), the ability to sequence proteins.
Contact Information
Website
www.quantum-si.comCorporate Office
- 29 Business Park Drive
- Unit Suite C
- Branford, CT 06405
- United States
Corporate Office
- 29 Business Park Drive
- Unit Suite C
- Branford, CT 06405
- United States
Quantum-Si Stock Performance
As of 11-Jul-2025, Quantum-Si’s stock price is $1.73. Its current market cap is $365M with 202M shares.
(As of Friday Closing)
| Stock Price | Previous Close | 52 wk Range | Market Cap | Shares | Average Volume | EPS |
|---|---|---|---|---|---|---|
| $1.73 | $1.81 | $0.61 - $5.77 | $365M | 202M | 7.89M | -$0.68 |
Quantum-Si Financials Summary
As of 31-Mar-2025, Quantum-Si has a trailing 12-month revenue of $3.44M.
|
In Thousands, USD |
TTM 31-Mar-2025 | FY 2024 31-Dec-2024 | FY 2023 31-Dec-2023 | FY 2022 31-Dec-2022 |
|---|---|---|---|---|
| EV | 23,119 | 202,806 | 25,699 | (99,151) |
| Revenue | 3,443 | 3,058 | 1,082 | 0 |
| EBITDA | (96,199) | (96,351) | (91,804) | (129,858) |
| Net Income | (100,722) | (101,007) | (95,960) | (132,442) |
| Total Assets | 271,222 | 247,871 | 298,250 | 391,485 |
| Total Debt | 12,054 | 12,948 | 15,303 | 17,446 |
Quantum-Si Valuation & Funding
| Deal Type | Date | Amount | Valuation/ EBITDA |
Post-Val | Status | Debt |
|---|
Quantum-Si Cap Table
| Stock | # of Shares Authorized |
Par Value | Dividend Rate (%) | Original Issue Price |
Liquidation | Liquidation Pref. Multiple |
Conversion Price |
% Owned |
|---|
Quantum-Si Comparisons
Industry
Financing
Details
Quantum-Si Competitors (6)
One of Quantum-Si’s 6 competitors is Seer (Decision/Risk Analysis), a Formerly VC-backed company based in Redwood City, CA.
| Company Name | Financing Status | Location | Employees | Total Raised | Last Financing Date/Type | Last Financing Amount |
|---|---|---|---|---|---|---|
| Seer (Decision/Risk Analysis) | Formerly VC-backed | Redwood City, CA | ||||
| Quanterix | Formerly PE-Backed | Billerica, MA | ||||
| SomaLogic Operating Company | Formerly PE-Backed | Boulder, CO | ||||
| Olink Proteomics | Formerly PE-Backed | Uppsala, Sweden | ||||
| Illumina | Formerly VC-backed | San Diego, CA |
Quantum-Si Related Research & Analysis
Explore institutional-grade private market research from our team of analysts.
-
Verticals
Quantum-Si Patents
Quantum-Si Recent Patent Activity
| Publication ID | Patent Title | Status | First Filing Date | Technology (CPC) | Citations |
|---|---|---|---|---|---|
| US-20250147035-A1 | Methods for detection of post-translational modifications | Pending | 06-Nov-2023 | ||
| US-20250035639-A1 | Protein quantification, tracking, and identification via peptide barcodes | Pending | 25-Jul-2023 | ||
| AU-2023364709-A1 | Luminescently labeled oligonucleotide structures and associated systems and methods | Pending | 21-Oct-2022 | ||
| US-20240151729-A1 | Luminescently labeled oligonucleotide structures and associated systems and methods | Pending | 21-Oct-2022 | ||
| US-20240182950-A1 | Methods and systems for characterizing phosphoserine-containing polypeptides | Pending | 21-Oct-2022 | C12Q1/6806 |
Quantum-Si Signals
Growth Rate
Growth
Size Multiple
Key Data Points
Similarweb Unique Visitors
Majestic Referring Domains
Quantum-Si Acquisitions (2)
Quantum-Si’s most recent deal was a Merger/Acquisition with Majelac Technolgies for . The deal was made on 05-Nov-2021.
| Company Name | Deal Date | Deal Type | Deal Size | Industry | Lead Partner |
|---|---|---|---|---|---|
| Majelac Technolgies | 05-Nov-2021 | Merger/Acquisition | Other Containers and Packaging | ||
| HighCape Capital Acquisition | 10-Jun-2021 | Merger/Acquisition | Special Purpose Acquisition Company (SPAC) |
Quantum-Si ESG
Risk Overview
Risk Rating
Updated June, 20, 2025
21.6 | Med Risk
Risk Scale
A lower score indicates better sustainability
Negl
0-10
Low
10-20
Med
20-30
High
30-40
Severe
40+
Exposure
Exposure refers to the extent to which a company is exposed to different material ESG issues
Management
Management is related to actions taken to manage ESG issues
Peers Analysis
Peer performance insights compare the company’s ESG performance to the performance of selected peers to help inform future ESG decisions and drive internal performance improvements.
Global
Covered Companies
of 14,697
Rank
Percentile
Pharmaceuticals
Industry
of 847
Rank
Percentile
Laboratory Equipment and Services
Subindustry
of 59
Rank
Percentile
Quantum-Si FAQs
-
When was Quantum-Si founded?
Quantum-Si was founded in 2013.
-
Where is Quantum-Si headquartered?
Quantum-Si is headquartered in Branford, CT.
-
What is the size of Quantum-Si?
Quantum-Si has 150 total employees.
-
What industry is Quantum-Si in?
Quantum-Si’s primary industry is Biotechnology.
-
Is Quantum-Si a private or public company?
Quantum-Si is a Public company.
-
What is Quantum-Si’s stock symbol?
The ticker symbol for Quantum-Si is QSI.
-
What is the current stock price of Quantum-Si?
As of 11-Jul-2025 the stock price of Quantum-Si is $1.73.
-
What is the current market cap of Quantum-Si?
The current market capitalization of Quantum-Si is $365M.
-
What is Quantum-Si’s current revenue?
The trailing twelve month revenue for Quantum-Si is $3.44M.
-
Who are Quantum-Si’s competitors?
Seer (Decision/Risk Analysis), Quanterix, SomaLogic Operating Company, Olink Proteomics, and Illumina are some of the 6 competitors of Quantum-Si.
-
What is Quantum-Si’s annual earnings per share (EPS)?
Quantum-Si’s EPS for 12 months was -$0.68.
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