Who We Are

Arranta Bio is a contract development and manufacturing organization (CDMO) specifically established to focus on serving companies seeking to develop and commercialize therapies targeting the human microbiome.

Headed by a management team and technical experts with a proven track record, we offer the knowledge and resources necessary to help you to develop and manufacture promising new microbiome-based therapies to meet the needs of patients.

Captozyme Merges with Arranta Bio

Aaron Cowley and partners launched Captozyme in 2009. Inspired by various influences and most notably by a speech from a mother who had lost a child to a rare disease, they were driven to start the business with the passion that their efforts could result in significant change. Growing the business with a team of talented individuals dedicated to manufacturing live biotherapeutics, Captozyme merged with Arranta Bio in November 2019. The products business of Captozyme was separately spun out under the control of the former CEO.

Captozyme’s legacy facility in Gainesville, Florida continues to serve clients as Arranta Bio’s Center of Excellence for process development and early clinical supply, staffed by its experienced team under the leadership of Aaron Cowley, Chief Scientific Officer. Arranta Bio is expanding the Gainesville facility with additional PD and QC labs, and a second GMP manufacturing line.

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Mark R. Bamforth

Founder, President & CEO

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Iain Baird


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Aaron Cowley

Chief Scientific Officer

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Dave Stevens

Chief Operations Officer

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Steve Favaloro

Chief Financial Officer

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Lana Gladstein

Chief Legal Officer & General Counsel

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Tom Boggiano

Vice President of Information Technology

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Melanie Cerullo

Vice President, Quality and Regulatory

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Shailesh Maingi

Independent Board Director

Browse Opportunities & Apply

Ready to take the next step in your career while pioneering pharmaceutical innovation? We are continuously seeking people of all backgrounds, skillsets and experience levels to join our growing team.

At Arranta Bio, we embrace the diversity of backgrounds that make up our company and our community. Each employee at Arranta has the opportunity to grow their career and care for their families irrespective of race or ethnicity. Arranta Bio is an Equal Opportunity Employer. We are committed to addressing barriers that exist for minorities and welcome diverse employees who share our core values.