Donald Holzworth

Constella Group LLC provided professional health services. It engaged in the design and implementation of public health & social programs that address population issues, reproductive health, HIV, infectious diseases and maternal and child health. The company was founded by Donald Holzworth and Steven Sielkop in 1983 and headquartered in Durham, NC.

Expression Analysis, Inc. supplies microarray services and solutions for clinical trials. It provides experimental design consultation, biologic sample preparation, sample processing, and statistical analysis services. The company was founded in September, 2001 by Steven Casey and is headquartered in Durham, NC.

Bivarus, Inc. operates as a patient-centered analytics company. It develops a platform for getting real-time patient feedback and facilitating meaningful change. The firm offers Bivarus, a change management platform utilizing a revolutionary statistical framework that resonates with patients, administrators and physicians. The company was founded by Seth W. Glickman and Kevin Schulman in 2012 and is headquartered in Durham, NC.

Veritas Collaborative Holdings LLC provides health care services. It offers child and adolescent treatment programs, including inpatient, acute residential, partial hospitalization, and intensive outpatient eating disorder treatment programs. The company is headquartered in Durham, NC.

Holzworth Holdings, Inc. conducts health research and provides technical, professional, and consulting services. The company was founded on December 19, 1996 and is headquartered in Durham, NC.

Health Decisions, Inc. engages in conducting research in clinical development of drugs, diagnostics, medical devices for advancement of women's health. It offers trial management, monitoring, data and quality management, biostatistics, study design and protocol development and consulting services. The company is headquartered in Durham, NC.

Bull City Venture Partners LLC (Bull City Venture Partners) is a venture capital firm founded in 2012 by Jason A. Caplain and David S. Jones. The firm is headquartered in Durham, North Carolina.

Excelerate Health Venture LLC (Excelerate Health Venture) is a venture capital firm founded in 2013 by Gary Abrahams and Bobby Bahram. The firm is headquartered in Research Triangle Park, North Carolina.