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CSSi's Overview

Total employees247
HeadquartersHanover
Founded2005

Clinical Site Services, Inc. (CSSi) is a global, full-service patient recruitment and retention company with a proven track record of accelerating clinical trial enrollment for pharmaceutical companies, CROs, and research sites. Leveraging innovative strategies, proprietary technologies, and extensive site relationships, CSSi offers a comprehensive suite of services including site feasibility, study start-up support, patient recruitment and enrollment, patient retention programs, and customized site-centric solutions. Their mission is to optimize the clinical trial process by connecting patients with research opportunities efficiently and effectively, ultimately helping to bring new therapies to market faster.

Where is CSSi's Headquarters?

HQ Function

Serves as the central hub for global operations, strategic planning, business development, and the innovation of patient recruitment and site support methodologies.

Notable Features:

Modern office space within a commercial business park, equipped with collaborative workspaces and technology infrastructure to support its specialized clinical trial services.

Work Culture:

A client-focused and innovative work environment, emphasizing collaboration, expertise in patient recruitment, and commitment to accelerating clinical research. Employees likely experience a fast-paced setting driven by project deadlines and the evolving needs of clinical trials.

HQ Significance:

The headquarters is central to CSSi's strategic direction, operational oversight, and the development of its proprietary patient recruitment methodologies and technologies. It acts as the command center for its North American operations and global coordination.

Values Reflected in HQ: The headquarters' operations and environment likely reflect CSSi's core values such as innovation in recruitment, client partnership, quality service delivery, and a commitment to ethical research practices.

Location:

Clinical Site Services, Inc. (CSSi) supports clinical trials globally, with a significant operational footprint in North America and Latin America. Their global service delivery model for patient recruitment, site feasibility, study startup, and patient retention is facilitated through their main offices and a network of in-country specialists. This allows them to manage multinational clinical studies by adapting strategies to local healthcare environments, regulatory requirements, and cultural contexts to ensure successful trial outcomes worldwide.

Street Address:

7550 Teague Road, Suite 100

City:

Hanover

State/Province:

MD

Country:

USA

CSSi's Global Presence

Martinez, Buenos Aires, Argentina

Address: Av. Cazón 1300, B1648 Tigre, Provincia de Buenos Aires, Argentina (Note: Specific address can vary; this is a general area for their LatAm operations, previously cited Alvear 1491, Martinez)

To expand CSSi's service delivery in South America, leveraging local expertise, language capabilities, and understanding of regional regulatory and cultural nuances to effectively manage clinical trial enrollment and site performance.

Buying Intent Signals for CSSi

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 CSSi

As of April 2025, CSSi' leadership includes:

Chris Trizna - President
Mark Booth - Chief Commercial Officer
Evan Stern - Senior Vice President, Business Development
Kevin R. Williams - Vice President Of Operations
Jennifer K Nodzon - Vice President, Global Business Operations

Investors of CSSi

CSSi has been backed by several prominent investors over the years, including:

Privately Held - Specific investor information is not publicly disclosed.

Executive New Hires/Exits in the Last 12 Months

Hire1
Exits0

Clinical Site Services, Inc. has focused on strengthening its commercial leadership over the past year. A key development was the appointment of a new Chief Commercial Officer to spearhead growth and market strategy.

New Appointments:

Mark Booth, Mark Booth joined Clinical Site Services, Inc. as the new Chief Commercial Officer to drive the company's commercial operations and growth initiatives.

Technology (Tech Stack) used by CSSi

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

CSSi Email Formats and Examples

Clinical Site Services, Inc. (CSSi) typically utilizes standard corporate email formats. The most common format combines the first initial and last name of the employee.

[first_initial][last]@cssienroll.com

Format

ctrizna@cssienroll.com

Example

85%

Success rate

News and media

CSSi LinkedIn AnnouncementNovember 14, 2023

Clinical Site Services, Inc. Appoints Mark Booth as Chief Commercial Officer

Clinical Site Services, Inc. (CSSi) announced the strategic appointment of Mark Booth as its new Chief Commercial Officer. Booth is tasked with leading the company's commercial strategy, sales, and marketing efforts to drive global growth and expand CSSi's innovative patient recruitment solutions....more

CSSi BlogFebruary 20, 2024

CSSi Explores Impact of Decentralized Clinical Trials (DCTs) on Patient Recruitment

In a recent thought leadership article, CSSi delved into the evolving landscape of patient recruitment, highlighting how Decentralized Clinical Trials (DCTs) are reshaping strategies. The piece discusses new approaches and technologies CSSi employs to adapt to this shift, ensuring continued success in trial enrollment....more

Industry Event Participation (e.g., SCOPE Summit)February 12, 2024

Clinical Site Services, Inc. Showcases Advanced Patient Engagement Strategies at SCOPE Summit 2024

CSSi actively participated in the SCOPE Summit 2024, presenting its latest innovations in patient recruitment and site engagement. The company emphasized technology-driven solutions and tailored strategies to overcome enrollment challenges in complex clinical trials, reinforcing its commitment to advancing clinical research....more

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