Summit Partners Makes Majority Growth Investment in LumaBridge

Avance Clinical Acquires U.S.-Based LumaBridge

January 7, 2026

Healthcare Services

Avance Clinical, an Australian full‑service CRO, has acquired LumaBridge, a U.S.-based oncology-focused clinical research organization. The deal expands Avance's U.S. footprint and establishes LumaBridge as the foundation of Avance's global Oncology Center of Excellence, strengthening oncology clinical trial capabilities from early‑phase through later‑phase programs.

LongueVue Capital Invests in Summit Clinical Research

October 26, 2022

Healthcare Services

LongueVue Capital completed a growth investment in Summit Clinical Research, an integrated research organization (IRO) headquartered in San Antonio, Texas. The investment will provide financial and human capital to accelerate Summit's growth and expand its clinical trial site network and capabilities, particularly in hepatology and NASH research.

Summit Partners Makes Growth Equity Investment in eClinical Solutions

January 21, 2020

Cloud & SaaS

Summit Partners has made a minority growth equity investment in eClinical Solutions LLC to support expansion of the company's cloud-based Clinical Data Hub platform, elluminate, and its elluminate-enabled data services. Summit Partners principals Mark deLaar and Jesse Lane have joined eClinical Solutions' board as part of the transaction to help accelerate product and market growth.

Leeds Equity Partners Invests in eLuma

July 20, 2021

Education

Leeds Equity Partners has made a significant growth investment in eLuma, a two-sided marketplace providing live, online special education and mental health services and software to K-12 districts. The capital will support eLuma's expansion into school-based mental health services and further development of its proprietary school software platform while founder Jeremy Glauser remains CEO.

Main Capital Partners Makes Majority Investment in LuxSci

November 3, 2023

Software

Main Capital Partners has made a majority investment in Lux Scientiae, Incorporated (LuxSci), a U.S.-based provider of HIPAA-compliant secure communications and hosting solutions for healthcare and other regulated industries. The partnership will provide LuxSci with resources to accelerate product development, pursue strategic acquisitions, and expand internationally while Main leverages its healthcare and security software experience to support growth.

Summit Clinical Research (with Pinnacle) Acquires Houston Research Institute

February 28, 2025

Healthcare Services

LongueVue Capital portfolio company Summit Clinical Research, in partnership with Pinnacle Clinical Research, completed a strategic investment in Houston Research Institute (HRI) to expand Summit's metabolic/hepatology clinical research capabilities. The transaction brings HRI's scientific expertise into Summit/Pinnacle's site network and is accompanied by leadership additions — Dr. Mazen Noureddin named Co-Chairman (and Chief Scientific Officer), Dr. Naim Alkhouri as Chief Academic Officer, and Brandon Early as President.