Greg R. Johnson

Prolog Ventures LLC is a venture capital firm founded in 2000 by Brian Clevinger, Greg Johnson and Ilya Nykin. The firm is headquartered in Clayton, Missouri.

PixelEXX Systems, Inc. manufactures semiconductor nanoarrays for molecular diagnostics and microscopy. The company was founded by Stuart Solin, Samuel A. Wickline, Kirk Wallace and Michael Hughes in 2007 and is headquartered in Chicago, IL.

Singulex, Inc. provides biotechnological research and development services. It also provides instrumentation and immunoassays with the requisite sensitivity and specificity to enable biomarker discovery and validation for drug safety and efficacy. The company was founded by Robert S. Puskas in November 1997 and is headquartered in Alameda, CA.

Everest Biomedical Instruments Co. manufactures biomedical instruments. The company's products include network and protocol analyzers, fiber optic test sources, and radar and sonar systems. It was founded by Elvir Causevic and Eldar Causevic in 1996 and is headquartered in Chesterfield, MO.

Veran Medical Technologies, Inc. designs, develops, and markets soft tissue equipment. The firm's main focus is assisting physicians in the early diagnosis and treatment of lung cancer. The company was founded by Ben Heavrin, Bruce Lynskey, Jerome R. Edwards, and Evan Austill, Jr. in 2005 and is headquartered in St. Louis, MO.

EraGen Biosciences, Inc. is a venture-backed biotechnology company. It designs, develops, manufactures and markets molecular diagnostic testing products and software for the research and clinical testing markets. The firm in-market and pipeline products, based on its novel, patented MultiCode platform chemistry, are the next generation of nucleic acid-based testing for the early detection and monitoring of cancer, genetic and infectious diseases. The company was founded in 1994 and is headquartered in Madison WI.

Akermin, Inc. develops a novel solution for removal of carbon dioxide from industrial gas streams using biocatalysts and nanotechnology. The company was founded by shelley minteer in 2003 and is headquartered in St. Louis, MO.

Kereos, Inc. develops and manufactures biotechnology products. The firm focuses on nanodroplet technology that allows delivery of a range of drug compounds to a target in the body for the treatment of diseases. The company was founded by Samuel A. Wickline and Gregory M. Lanza in 1999 and is headquartered in St. Louis, MO.