Quantum-Si

Biotechnology Research • Branford, Connecticut, United States • 101-200 Employees

Company overview

Headquarters	29 Business Park Drive, Suite C, Branford, CT 06405, US
Phone number	+12034587100
Website	quantum-si.com
NAICS	541714
SIC	367
Founded	2013
Employees	101-200
Socials

Emails Format About Revenue Employees Insights Funding Tech Stack Trending Companies FAQ

Quantum-Si Email Formats

Quantum-Si uses 3 email formats. The most common is {first initial}{last name} (e.g., jdoe@quantum-si.com), used 64.3% of the time.

Format	Example	Percentage
{first initial}{last name}	jdoe@quantum-si.com	64.3%
{first name}{last name}	johndoe@quantum-si.com	28%
{last name}{last name}	doedoe@quantum-si.com	7.7%

About Quantum-Si

Quantum-Si is transforming proteomics with a benchtop platform that brings single-molecule protein analysis to every lab, everywhere. The Company’s platform enables real-time kinetic-based detection and allows researchers to move beyond traditional, multistep workflows and directly access dynamic, functional protein insights with unparalleled resolution. By making protein analysis simpler, faster, and more informative, Quantum-Si is accelerating proteomic discoveries to improve the way we live. Check out current job listings here: https://www.quantum-si.com/careers/ Nasdaq: $QSI

Quantum-Si revenue & valuation

Annual revenue	$3,412,000
Revenue per employee	$19,000
Estimated valuation?This valuation is estimated based on industry average for the Biotechnology Research industry and current estimated revenues	$11,000,000
Total funding	$525,000,000

Employees by Management Level

Total employees: 101-200

Seniority

Employees

Entry

Senior

Manager

Employees by Department

Quantum-Si has 82 employees across 16 departments.

Departments

Number of employees

Funding Data

Explore Quantum-Si's funding history, including investment rounds, total capital raised, and key backers.

Funding Date	Round	Amount
2021-07-11	14	$425,000,000
2025-02-03	14	$50,000,000
2025-08-03	14	$50,000,000

Funding Insights

$525,000,000

Total funding amount

$50,000,000

Most recent funding amount

Number of funding rounds

Quantum-Si Tech Stack

Discover the technologies and tools that power Quantum-Si's digital infrastructure, from frameworks to analytics platforms.

6sense

Marketing automation

reCAPTCHA

Security

Cloudflare Bot Management

Security

Gravity Forms

Form builders

Amazon SES

Cookie Control

Cookie compliance

PWA

Miscellaneous

DataTables

JavaScript libraries

Hotjar

Analytics

Microsoft 365

jQuery Migrate

JavaScript libraries

Cloudflare

CDN

Frequently asked questions

Quantum-Si is located in Branford, Connecticut, US.

You can reach Quantum-Si at +12034587100.

Quantum-Si was founded in 2013, making it 13 years old. The company has established itself as a significant player in its industry over this time.

Quantum-Si has approximately 101-200 employees. The company continues to grow its workforce to support its business operations and expansion.

Quantum-Si has raised a total of $525,000,000 across 3 funding rounds. This investment has helped the company grow and expand its operations.

Key Contact at Quantum-Si

Todd Rearick

Chief Technology Officer

@quantum-si.com

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