The Team

Samuel M. Lawrence, Chief Executive Officer - CytoViva, Inc.

Samuel M. Lawrence

Chief Executive Officer

Samuel M. Lawrence is the chief executive officer and co-founder of CytoViva, Inc. He led the development of the core, patented optical illumination technology which is the foundation for CytoViva’s products, as well as played a key role in the development of the patented CytoViva 3D Imaging technology. He continues to lead all product development efforts as well as actively support the company’s sales efforts both domestically and internationally.

Sam has worked with dozens of laboratories around the world to help them solve their analytical imaging needs.  His knowledge spans all aspects of the CytoViva product catalog, including optical imaging at the nano scale, hyperspectral analysis of images and the application of Raman microscopy in combination with CytoViva’s optical and hyperspectral microscopy techniques.  He also has extensive knowledge in working with the FDA on drug approval projects, both as an applicant and as a board member for a drug development incubator.

Prior to CytoViva, Mr. Lawrence was a director at Boeing Commercial Airplanes in Seattle, WA where he led Supply Chain Transformation for the 737/757 Programs and was factory manager of the Interiors Responsibility Center. Prior to Boeing, Mr. Lawrence worked with Deloitte & Touche, LLC as a management consultant. Mr. Lawrence began his career in 1986 as an engineer on the Boeing Commercial Airplanes Aerodynamics staff after graduating from Mississippi State University with a bachelor of science degree in aerospace engineering. He is co-inventor on two U.S. patents for his work on innovative insulation materials for commercial airplanes.

Mr. Lawrence left Boeing in 1991 to continue his education at the Northwestern University Kellogg Graduate School of Management where he earned a masters of management in manufacturing in 1993. Mr. Lawrence also completed the International Executive Programme at INSEAD (Fontainebleau, France/Singapore) in 2002.  He has been recognized as a Distinguished Engineering Fellow by the Mississippi State University School of Engineering and is a member of the Auburn University Chapter of the National Academy of Inventors.


John O. Lawrence, Chief Operating Officer - CytoViva, Inc.

John O. Lawrence

Chief Operating Officer

As Chief Operating Officer, John has led the internal operations and administrative functions of the company since its inception. One of John’s primary roles is overseeing the complex task of sourcing components, assembling, calibration and testing of CytoViva’s microscopy and hyperspectral imaging systems for world-wide distribution. The primary focus in this role is insuring that CytoViva customers receive systems that operate effectively immediately upon arrival for installation at their research lab. This effort requires close coordination with CytoViva’s numerous worldwide supply chain vendors and CytoViva’s technical staff for each custom system configuration that is shipped.

John, also has responsibility for all finance, legal, HR and administrative functions at CytoViva. This includes cash flow management, payroll, tax and export regulatory oversight and many other day to day administration functions required to insure smooth corporate operations.

Prior to CytoViva, John served in senior management roles in the telecommunications and pharmaceutical industries and in startup technology ventures. John received his bachelor of liberal studies from Millsaps College.

Byron Cheatham, Senior Vice President, Sales and Marketing - CytoViva, Inc.

Byron Cheatham

Executive Vice President, Sales and Marketing

Since 2005, Byron has led the deployment of CytoViva’s microscopy and hyperspectral imaging technology into hundreds of research labs worldwide. Over this time, CytoViva’s technology has become a standard for many nanotechnology-centric research segments such nano-toxicology and nano-drug delivery and is now advancing into new markets such as pathology and photovoltaics. Byron is involved in every aspect of the customer experience from onsite product demonstrations, assisting customers with grant submissions for system acquisitions to onsite installations and training.

Additionally, Byron leads the development and implementation of the promotional and market messaging efforts for the company through its website, social media and other promotional mediums. He also supports CytoViva’s distribution partners throughout Asia and Europe with a focus on ensuring customers around the globe can effectively leverage CytoViva’s technologies.

Finally, Byron serves as a liaison between CytoViva’s technical development team and the customer, to properly align the utility of CytoViva’s technology advancements and the needs of the end-user.

Prior to his role at CytoViva, Byron successfully served in senior leadership roles for numerous entrepreneurial technology development organizations. He is a graduate of Mississippi State University where he began his career as a soil and water biochemistry research technician.

James Beach Ph.D, Director of Technology Department - CytoViva, Inc.

James Beach, Ph.D

Director, Technology Department

Dr. James Beach brings over eighteen years of experience in imaging systems to direct CytoViva’s hyperspectral systems development program.  Dr. Beach, who joined CytoViva in 2008, led the initial development and deployment of CytoViva’s first hyperspectral imaging product offering.  As director of technology development, Dr. Beach leads the effort to create new imaging and analysis capabilities for the CytoViva product line.

In 2000, Dr. Beach co-founded an ophthalmic imaging company located in Reykjavik, Iceland, which markets a retinal oxygen monitoring camera system based on his original work at the University of Virginia.  Over the past decade, he has been involved in the miniaturization of hyperspectral detector systems under NASA-sponsored research programs at the Stennis Space Center, and has contributed to NIH-funded eye research as an adjunct research professor at the Louisiana State University Eye Center in New Orleans, LA.  Dr. Beach received a Space Foundation Hall of Fame award in 2005 for his contributions to portable hyperspectral imaging systems.

At CytoViva, Dr. Beach is actively involved in extending the range of applications for hyperspectral microscopy, including both visible and near infrared spectral imaging, three-dimensional volume imaging, and spectral analysis methods for nanoparticle characterization.

Dr. Beach earned his bachelor of science degree in electrical engineering in 1971 and master of science degree in bioengineering in 1976, both from the University of Michigan.  He earned his doctoral degree in biomedical engineering from the University of Virginia in 1983.


Jamie Uertz, Senior Manager, Technology Development and Support - CytoViva, Inc.

Jamie Uertz

Senior Manager, Technology Development and Support

Jamie Uertz is the senior manager of technology development and support for CytoViva, Inc. Jamie manages our customer onsite installations and training worldwide, as well as, serving as the technical lead for all support related issues. In addition to leading the development of the patented CytoViva 3D Imaging technology, Jamie manages the integration of CytoViva’s hyperspectral software routines with various hardware components. These efforts have expanded the hyperspectral analysis software reach and created customized routines tailored towards customers’ microscopy and nano-based applications. He is also the leader of the CytoViva’s integration and development activities with the combined Raman imaging system.

Jamie is in constant contact with customer laboratories worldwide to maximize their use of their CytoViva systems, whether it be technical or application support.  His knowledge spans all aspects of the CytoViva product catalog, including optical imaging at the nanoscale, hyperspectral analysis of images, and Raman microscopy applications combined with CytoViva’s optical and hyperspectral microscopy techniques.

Jamie graduated from Auburn University with a bachelor of science degree in zoology in 1999, where he also served as a wetland mitigation expert in the Biological Services Department. He joined the CytoViva team in 2006 and is dedicated to expanding the product catalog and assisting customers with technical and application inquiries.


Andrew Liu

Senior Software and Product Developer

After serving as a software consultant in 2017, Andrew joined CytoViva as a full-time team member in early 2018 and has led all software development activities ranging from general product development to custom solutions for specific customers and or applications.  Andrew also leads the software development activities related to CytoViva’s clinical diagnostic applications development.  As a programmer, he helps to identify and solve issues for CytoViva’s customers, as well as, performing proof of concept work for new prospects.

In addition to his role as a software developer, Andrew sources, builds and troubleshoots the computers that are integrated with the CytoViva systems, tailoring each build to suit the end user’s specific needs. Andrew also plays a primary role in supporting CytoViva’s imaging services laboratory. This includes conducting proof of concept imaging for new prospective customers and fee-based imaging services.


Carroll Rhea, Sales Operations Manager - CytoViva, Inc.

Carroll Rhea

Sales Operations Manager

Carroll joined CytoViva in 2013 after graduating from Auburn University with a bachelor of science degree in human resource management and a minor in supply chain management.

During her time at CytoViva, Carroll has established herself as a trusted partner for both customers and vendors. She is an expert in all of CytoViva’s enhanced darkfield and hyperspectral imaging system configurations, which includes various custom system configurations based on researchers’ applications and requirements. She now continues to support existing and potential customers by answering inquiries related to system compatibility, along with any additional software or hardware questions. She also manages vendor relationships by supporting the implementation of new hardware and software components between CytoViva and our vendors.

Carroll still supports all previous operational responsibilities at CytoViva and is managing many new aspects in her program manager role. Currently, she has been working on expanding her relationships with key stakeholders, by keeping communication lines open between researchers and the CytoViva team, as well as, supporting CytoViva’s international distribution partners. She is also managing the CytoViva web presence and multiple marketing efforts implemented within the company. With her knowledge in operations, management, and marketing, Carroll can easily support and help manage customer-centric service through high-quality relationships with for CytoViva’s potential clients, customers, and vendors.