Catalyst Clinical Research Acquires Aptus Clinical

Catalyst Clinical Research Merges with Ce3, Inc.

August 5, 2020

Healthcare Services

Catalyst Clinical Research, a NovaQuest-backed CRO headquartered in Wilmington, North Carolina, has merged with Ce3, Inc., an early-phase oncology-focused CRO based in Clinton, Connecticut. The transaction combines Ce3's 15+ years of oncology expertise with Catalyst's broader clinical development and technology capabilities to create a next-generation oncology-focused CRO (add-on to Catalyst's NovaQuest-backed platform).

Worldwide Clinical Trials Acquires Catalyst Clinical Research

February 17, 2026

Healthcare Services

Worldwide Clinical Trials, a Kohlberg-backed contract research organization, has completed its acquisition of Nottingham-based oncology specialist Catalyst Clinical Research from QHP Capital. The deal expands Worldwide's early-phase oncology, biometrics, and functional service provider (FSP) capabilities, creating a combined organization of roughly 4,400 employees across more than 70 countries; financial terms were not disclosed.

3 Rivers Capital Acquires Aptus Group USA

December 20, 2019

Infrastructure

3 Rivers Capital, a lower middle-market private equity firm, has acquired Aptus Group USA, a Charlotte-based provider of bridge-attached utility repair and maintenance services. The founder, Scott T. Dill, remains CEO as 3RC partners with Aptus to expand its geographic footprint beyond the eastern U.S. and accelerate strategic growth.

Apax Development Acquires Majority Stake in Porsolt

February 21, 2023

Biotechnology

Apax Development, a European private equity firm, has acquired a majority stake in Porsolt SAS, a French preclinical Contract Research Organization (CRO). The investment will support Porsolt's plans to expand services, accelerate hiring (targeting ~40% headcount growth), pursue bolt-on acquisitions in Europe and the US, and extend its global footprint.

Catalyst Clinical Research Acquires Genpro Research

July 20, 2023

Healthcare Services

Catalyst Clinical Research, a Wilmington, North Carolina-based CRO and portfolio company of QHP Capital, has acquired Genpro Research, a Massachusetts-based clinical research organization with staff in the US, India, and Ireland. The deal adds more than 120 India-based team members and strengthens Catalyst's capabilities in biometrics/biostatistics, medical writing, real-world evidence (RWE)/HEOR, and AI-enabled automation.

Thoma Bravo Acquires Majority Interest in Apttus

September 4, 2018

Software

Thoma Bravo signed a definitive agreement to acquire a majority interest in Apttus, a San Mateo–based provider of Quote-to-Cash, Contract Lifecycle Management and Middle Office software. The deal (expected to close in early October 2018) will pair Apttus’ enterprise revenue-management platform with Thoma Bravo’s software operating experience to accelerate growth and scale; financial and legal advisors and financing partners were disclosed but financial terms were not.