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Quantum-Si's Overview

Total employees221
HeadquartersBranford
Founded2013

Quantum-SI (NASDAQ: QSI) is a life sciences company on a mission to revolutionize proteomics, the large-scale study of proteins. The company developed Platinum™, the first next-generation single-molecule protein sequencing platform. This technology aims to empower researchers and clinicians by enabling routine, comprehensive, and unbiased analysis of the proteome. By providing deeper insights into protein structure, function, and modifications, Quantum-SI's platform has the potential to significantly accelerate drug discovery, advance diagnostics, and broaden our understanding of biology and disease. Their approach utilizes semiconductor chip technology for real-time, single-molecule protein analysis.

Where is Quantum-Si's Headquarters?

HQ Function

Serves as the global headquarters, encompassing primary research and development labs, corporate offices, and key operations for the manufacturing and assembly of their Platinum™ protein sequencing instruments and proprietary consumables (chips).

Notable Features:

State-of-the-art laboratories for proteomics research, specialized cleanroom environments for semiconductor chip manufacturing (core to their sequencing technology), and advanced instrument development facilities. The space is designed to support interdisciplinary scientific collaboration.

Work Culture:

Quantum-SI fosters an innovative, collaborative, and mission-driven work culture. As a company at the forefront of a new technological field, the environment is likely fast-paced, emphasizing scientific excellence, problem-solving, and a shared goal of transforming proteomics.

HQ Significance:

The Branford headquarters is central to Quantum-SI's strategy, housing the core innovation, product development, and leadership functions. Its location within Connecticut's life science corridor provides access to specialized talent, research collaborations, and a supportive biotech ecosystem, crucial for its pioneering work in protein sequencing.

Values Reflected in HQ: The headquarters' design and functionality likely reflect Quantum-SI's core values of innovation, precision, and scientific advancement. The emphasis on state-of-the-art labs and collaborative workspaces underscores their commitment to cutting-edge research and development.

Location:

While Quantum-SI's primary physical operations (R&D, manufacturing, corporate) are based in the United States (Connecticut and California), the company aims for a global impact with its protein sequencing technology. They support a worldwide customer base of academic institutions, pharmaceutical companies, and biotech organizations through direct sales, and are building out distribution networks and collaborations to make their Platinum™ platform accessible to researchers globally. Their commercialization strategy includes targeting key research markets in North America, Europe, and Asia-Pacific.

Street Address:

29 Business Park Drive

City:

Branford

State/Province:

CT

Country:

USA

Quantum-Si's Global Presence

San Diego, California, USA

Address: Leased office and laboratory space; specific street address not publicly detailed by the company.

To tap into the rich talent pool and collaborative opportunities within the Southern California biotech ecosystem, complementing the R&D efforts at the Connecticut headquarters and potentially supporting West Coast commercial activities.

Buying Intent Signals for Quantum-Si

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Executive Team of Quantum-Si

As of April 2025, Quantum-Si' leadership includes:

Jeffrey Hawkins - President and Chief Executive Officer
Jeff Keyes - Chief Financial Officer
Grace Johnston, Ph.D. - Chief Commercial Officer
Michael P. McKenna, Ph.D. - Chief Operating Officer
Katherine Tan, Ph.D. - Senior Vice President, Science
Kenneth L. Ward, M.D. - Chief Medical Officer

Investors of Quantum-Si

Quantum-Si has been backed by several prominent investors over the years, including:

Foresite Capital
Glenview Capital Management
Redmile Group
ARCH Venture Partners
T. Rowe Price Associates, Inc. (advised accounts)
Casdin Capital
Eldridge
Dr. Jonathan Rothberg (Founder)

Executive New Hires/Exits in the Last 12 Months

Hire2
Exits2

Over the past 12 months (approx. May 2023 - May 2024), Quantum-SI has made significant updates to its executive team, notably appointing a new Chief Financial Officer and a new Chief Commercial Officer to strengthen its financial operations and drive commercial growth.

Departures

Claudia Napal Porter, Claudia Napal Porter resigned from her position as Chief Financial Officer.
John Stark, John Stark departed from his role as Chief Commercial Officer.

New Appointments:

Jeff Keyes, Jeff Keyes was appointed as the new Chief Financial Officer, succeeding Claudia Napal Porter.
Grace Johnston, Ph.D., Dr. Grace Johnston was appointed as the new Chief Commercial Officer, succeeding John Stark.

Technology (Tech Stack) used by Quantum-Si

Discover the tools Quantum-Si uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

Quantum-Si Email Formats and Examples

Quantum-SI likely uses a standard corporate email format. Based on industry conventions and patterns observed for similar companies, the most common format is expected to be the first initial followed by the last name.

[first_initial][last]@quantum-si.com

Format

jhawkins@quantum-si.com

Example

80%

Success rate

News and media

GlobeNewswireMarch 5, 2024

Quantum-SI Appoints Dr. Grace Johnston as Chief Commercial Officer

Quantum-SI announced the appointment of Grace Johnston, Ph.D., as its Chief Commercial Officer, effective March 4, 2024. Dr. Johnston will lead global commercial strategies, sales, and marketing efforts for Quantum-SI's Platinum™ protein sequencing platform....more

GlobeNewswireFebruary 27, 2024

Quantum-SI Reports Fourth Quarter and Full Year 2023 Financial Results and Provides Business Update

Quantum-SI reported its financial results for Q4 and FY 2023, highlighting progress in the commercialization of its Platinum™ platform, instrument placements, and ongoing R&D efforts. The company also provided updates on its operational strategy and outlook for 2024....more

GlobeNewswireNovember 2, 2023

Quantum-SI Appoints Jeff Keyes as Chief Financial Officer

Quantum-SI announced the appointment of Jeff Keyes as its Chief Financial Officer, effective November 6, 2023. Mr. Keyes brings extensive financial leadership experience in the life sciences and technology sectors to support Quantum-SI's growth....more

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