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FierceBiotech Names Pfenex a 2011 Fierce 15 Biotech

San Diego, CA – September 6, 2011 – Pfenex has been named by FierceBiotech today as one of 2011’s Fierce 15, designating it as one of the most promising private biotechnology companies in the industry.

“It’s impressive yet not surprising to see Pfenex gain so much commercial interest in its protein expression technology; manufacturing proteins for biomedical applications is notoriously difficult and in need of new solutions,” says Ryan McBride, executive editor of FierceBiotech.

This is FierceBiotech’s ninth annual Fierce 15 selection.

“We are honored to be chosen to be included in the Fierce 15”, noted Bertrand Liang, CEO.  “This is a testament not only to the incredible staff at Pfenex, but to our partners who have recognized the value of our platform, programs and products.”  

An internationally recognized daily newsletter reaching more than 90,000 biotech and pharma industry professionals, FierceBiotech provides subscribers with a quick, authoritative briefing on the day's top stories. Every year FierceBiotech evaluates hundreds of private companies for its annual list, which is based on a variety of factors such as the strength of its technology, partnerships, venture backers and a competitive market position.

The Fierce 15 celebrates the spirit of being "fierce" – championing innovation and creativity, even in the face of intense competition. A complete list of “Fierce 15” companies—the online newsletter’s ninth annual selection--is available online at

About Pfenex Inc. 
Pfenex Inc. is a protein production company leveraging the unique and powerful Pfenex Expression Technology™ platform based on the microorganism, Pseudomonas fluorescens, for the production of research proteins, reagent proteins, biosimilars and innovator biopharmaceuticals. For more information please visit

About FierceBiotech
FierceBiotech is the biotech industry's daily monitor - a free email newsletter and web resource providing the latest biotech news, articles, and resources related to clinical trials, drug discovery, FDA approval and regulation, biotech company deals and more. More than 90,000 top biotech professionals rely on FierceBiotech for an insider briefing on the day’s top stories. Sign up is free at

Pfenex Inc. Contact: 
Cassidy Brady
Marketing Manager, Pfenex Inc. 

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