Executive Leadership

Brendan Madden

Brendan Madden

Chief Executive Officer

Brendan Madden founded Tom Sawyer Software in 1992, and has since developed the company into a leading global provider of high-performance graph and data visualization and analysis systems. He is highly interested that the company does top quality work, and under his expert guidance, Tom Sawyer Software has received accolades for excellence in component-based software technology development from the U.S. National Institute of Standards and Technology.

Brendan brings his highly specialized knowledge of the software industry and intricate knowledge of other industry sectors to make invaluable contributions to the business strategy, product direction, operations, marketing, and worldwide sales of Tom Sawyer Software. With nearly thirty years of experience, Brendan is one of the world's foremost experts in graph and data visualization, graph layout, and graph analysis. He is also an expert in user experience and software architecture.

Prior to founding Tom Sawyer Software, Brendan was employed at the IBM Thomas J. Watson Research Center, the IBM Santa Teresa Laboratory, and Vitalink Communications.

Brendan has a Bachelor of Science degree in Applied and Engineering Physics from Cornell University and a Bachelor of Arts degree in Physics from Ithaca College. He attended graduate school in Electrical Engineering at Arizona State University.

Deborah Baron

Deborah Baron

Vice President of Marketing

Deborah Baron joined Tom Sawyer Software in 2016 as the Vice President of Marketing. Deborah has over 15 years of experience driving market and product strategy and execution, contributing to fast-growing enterprise technology startups and global brands.  Before joining Tom Sawyer Software, Deborah was Chief Strategy Officer at Align Matters. Prior to that, she served as Chief Marketing Officer of Nuix, Vice President of Product Marketing at HP Autonomy, and Director of Product Marketing and Business Development at ZANTAZ, acquired by HP Autonomy. Deborah began her career in data modeling moving on to product management and marketing positions for IBM and HP in the United States and Europe.

Deborah is a cofounding member of the Electronic Discovery Reference Model, a standards forum for the fast-moving eDiscovery industry. She has spoken at over 50 industry events, authored papers on AI and discovery, and recently published $10M Dollars in Pennies. The article is an analogy comparing the challenge of extracting immediate value from one billion pennies to getting the same from Big Data, and overcoming it by applying data science principles and teaching them to our children. Deborah´s expertise in growing revenue by building brand awareness, entering new markets and leading dynamic marketing teams is essential to Tom Sawyer Software.

Deborah holds a Bachelor of Arts in Economics and minor in Math from Occidental College and an MBA in Strategy and International Marketing from Northwestern University, Kellogg School of Management.

Ulrich Foessmeier

Ulrich Foessmeier

Vice President of Engineering

Ulrich Foessmeier has played an influential role in the success of Tom Sawyer Software both in recent and past years. He rejoined Tom Sawyer Software in 2017 as the Vice President of Engineering, where he applies his twenty years of experience in the software industry managing large, and complex product development projects and global engineering teams. From 1997–2011 he worked at Tom Sawyer Software in various roles from Orthogonal layout specialist in the Graph Layout group to Vice President of Engineering, and finally to General Manager of the German office. Further contributions within these years included redesigning and modularizing the entire code base, establishing a defect tracking tool, and building new Tom Sawyer Software teams in Europe.

During his time away from Tom Sawyer Software, Ulrich worked as the Director of Software Engineering for Thermo Fisher Scientific where he oversaw 45 software developers. He was responsible for the development of the Chromatography Data System at three sites, the establishment of a development partnership program, and the integration of new teams in remote locations.

Ulrich holds a Ph.D. in Computer Science from the University of Tuebingen where he received the Rector’s Prize for the best Ph.D. thesis of the year. He is a PPI Senior Process Manager and Trainer with authority to train and qualify Practical Process Improvement managers, making him one of the world’s leading experts in this technique. Ulrich is also an Exin-certified Scrum Master.

Caroline Scharf

Caroline Scharf

Senior Operations Director

Caroline Scharf is the Operations Director of Tom Sawyer Software. She works closely with all department managers to streamline company processes, and ensure efficient and seamless operation of all day-to-day activities and operational functions of the company. Caroline also manages the administration, documentation, and quality assurance functions with a view towards a corporate services model. Caroline brings a unique set of skills, drawing from her years of experience at large and small software companies; her involvement in helping to define and refine processes at her previous employers; her ability to analyze and identify solutions to problems; and her writing, communication, and organizational skills.

Previously, Caroline worked for 9 years at Revitas, Inc. as the Director of Documentation Services, where she was a key member of the Product Development leadership team, working closely with upper management on key organizational initiatives, and defining the company-wide product development lifecycle. Caroline is a returning employee to Tom Sawyer Software, previously having worked for the company from 1996 to 1999 as the Documentation Manager.

Caroline holds a Bachelor of Arts in English Literature from California State University, Chico.

Drobenaire Marilyn

Marilyn Drobenaire

Financial Controller

Marilyn Drobenaire, Certified Public Accountant, joined Tom Sawyer Software in 2017 as the Financial Controller. She oversees the Finance department and works with all areas of the company to ensure smooth financial health and budgetary organization. Marilyn brings a broad array of skills and knowledge to Tom Sawyer Software, having gained expertise in areas such as auditing, banking, forensic accounting, wealth management, tax preparation, and human resources.

Prior to joining Tom Sawyer Software, Marilyn ran her own business for over 25 years. She helped startup businesses, large corporations and non-profit organizations to attract investors, train bookkeepers, develop and organize financial systems, and make budgetary decisions. Before that, Marilyn worked for Aspiriant Wealth Management and Deloitte & Touche.

Marilyn is passionate about giving back to the community and has spoken at several events focused on empowering small, female-run businesses. She feels strongly about providing entrepreneurs with the opportunity to learn about the financial needs of running a business and has helped many small business owners push their ideas to the next level.

Marilyn is a member of the American Institute of Certified Public Accountants and the California Society of Certified Public Accountants. She holds a Bachelor of Science degree in Economics and Business Administration from Saint Mary's College in Moraga, California.