What is the Z Factor Approach?

The Z Factor Approach, coined by renowned scientist Dr. Rao Marepalli, is a quality commitment that minimizes variables that may introduce errors in experiments. It focuses on minimizing sources of uncertainty by adhering to strict quality control standards including single-digit variability and high accuracy percentages to ensure consistent and highly confident results. The Z Factor epitomizes our laser-focus.

Our success at Sannova results from our commitment to delivering personalized partnerships, that produce the best results, as quickly as possible. With our Z Factor Approach, we minimize variables to prevent errors and provide consistent results you can trust. We consistently exceed 90% ISR pass rates. Our exceptional customer service means that we listen to your needs to accommodate diverse procedures, helping you get it right the first time. Ultimately, the Sannova Advantage provides results you can rely on from one of the Industry-Leading boutique CRO labs in the United States.


Absolutely, I would be pleased to be a reference so that I can praise your unsurpassed flexibility, quality and turn-around to results. I’ll think about whether there is something better to say than unsurpassed and the best.

Sr. Vice President

Regulatory Affairs, Clinical Development & Quality Assurance

We received confirmation from our Regulatory Affairs group that the file was received by the FDA. Many thanks to your entire team for their hard work and dedication on these studies! Your efforts have allowed us to submit on the same day that our stability data was available.

Executive Director

Research & Development

On behalf of our company, I’d like to also thank you and the entire Sannova team for your efforts in supporting the studies under very tight timelines – we did not receive a single question on the clotting studies or the associated Sannova validation/testing during the review.

Chief Scientific Officer

Research & Development

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