Vendavo’s leadership is comprised of respected, experienced professionals that have garnered success at some of the world’s most prominent industrial, software, and consulting companies—including IBM, SAP, Siebel and Francisco Partners.



Bruno Slosse brings more than 25 years in technology experience to Vendavo, including a strong track record in growing companies, expanding their global reach and broadening their product offering. Most recently, he served as President of Ascend Learning’s Clinical Health Division, a prominent provider of technology-based content solutions. Prior to Ascend, Slosse served as General Manager of Cerner Europe, a leading information technology firm, where he led the expansion of the European division from a few clients to several hundred across seven countries in over a decade. He is fluent in Dutch, French, German and English. Bruno graduated with Honors with a Bachelor’s Degree in Economics from the University Ghent, Belgium.

JOHN OOSTERHOUSE, Chief Financial Officer

John Oosterhouse brings more than 25 years of technology experience in a variety of finance and operations roles.  John has a proven track record of leading high performing finance teams, driving process improvement initiatives, providing outstanding insight and analysis, and negotiating and integrating M&A transactions. Most recently he served as Senior Vice President and Interim CFO of Veritas while the business was carved out of Symantec and sold to private equity. In this role, he was responsible for leading all of accounting, financial planning and analysis, treasury, tax, investor relations, purchasing and audit. Prior to Veritas, John held various leadership positions at Sun Microsystems, Maxtor Corporation, Boole & Babbage and Unisys. John holds a B.A. in Mathematics from Calvin College and an MBA from Purdue University.

JOE BOISSY, Chief Marketing Officer

Joe-BoissyJoe Boissy is a veteran marketer with more than 20 years of experience in high-tech public and private companies. Over the course of his career, he has repeatedly built world-class marketing organizations and taken many leading products to market. Most recently, he was Chief Marketing Officer at 3VR, a video data and analytics company, where he led the company to the forefront of the video intelligence sector as a pioneer of video analytics for Big Data. Prior to 3VR, Joe was Vice President of Marketing for ILOG and took the company to a double-digit growth, which led to its acquisition by IBM, where he then ran the Go-to-Market Strategy for the WebSphere Division. Earlier in his career, he served in various management positions at SunGard Data Systems and Infinity Financial Software in the U.S. and Europe. Joe holds a B.S. in Electrical Engineering and an M.S. in Computer Science and Data Analytics from the University of Paris-Orsay.

MARK HORNER, Chief Services Officer

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Mark Horner is an Enterprise software and services veteran with more than 20 years in transforming operational delivery systems.  Known as a change agent, Mark challenges the status quo and reengineers processes to improve and scale operations for global growth.  Under Mark’s leadership, teams accelerate delivery of high-quality, high-value, and cost effective solutions.  He most recently was the Executive Vice President & Group General Manager for 5 years at T-System, an Enterprise Software provider in the Healthcare space.  Prior to T-System, Mark held various senior leadership positions at several Enterprise software companies, including ten years at Cerner Corporation.  He received his MBA from the University of Dallas.


MAARTEN de BRUIJN, Vice President & General Manager Sales & Services EMEA

Maarten de Bruijn has a profile that is composed of experience in industry at Peugeot Citroën in strategy and finance roles, and experience in medical software as a Client Director at Cerner, where he implemented successfully the client value strategy. Prior to joining Vendavo, Maarten served as a Managing Director of Western Europe for iMDsoft, a buyout, where he led the restructuring and expansion of Client and New sales, including winning the most important contract for ICU software in the French market. Maarten speaks 5 languages (Dutch, French, English, German and Italian) and holds a degree in Business Economics from the University of Maastricht and an MBA of INSEAD. Maarten is married, has 2 children, and lives in Paris, France.


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John Lynch is a veteran of over 20 years in enterprise sales and computer software analytics. Prior to joining Vendavo, John served as Vice President of Sales at Mattersight Corporation, leading the behavioral analytics team to over $100M in SaaS growth in three years.  While President and CEO at NexPrise, Inc., John successfully negotiated the company’s acquisition by Trubiquity. John served as Director of North American Sales for over six years at Nuance Communications, helping drive sales from $60 million to $1.5 billion. John brings extensive experience in enterprise software, cloud computing and SaaS sales with expertise in customer acquisition to Vendavo. John holds a B.A. in Communication from the University of Southern California.




Megan MacLean has 20 years of experience implementing global enterprise software solutions at Fortune 500 companies and managing partner and customer relationships. Megan is passionate about customer success and helping customer realize value. Megan has held several roles at Vendavo; including Partner Management and running the global solution delivery team. Prior to Vendavo Megan worked at Exemplary software and Arthur Anderson. Megan holds a bachelor of science degree from the University of Witwatersrand, South Africa


Ravi-MirchandaneyRavi Mirchandaney brings more than 20 years of experience in the software business to Vendavo. Previously, he was Senior Vice President of Engineering at C3 Energy, a SaaS Grid Analytics software provider. Prior to C3, he held the position of Group Vice President of Engineering at Oracle, focused on CRM, and before that, Ravi was Vice President of Engineering at Siebel Systems. He has held research positions at Yale University and Shell Oil Research Labs in addition to being the author of more than 25 technical papers and patents in fields of parallel, distributed systems and databases. Ravi holds a Ph.D in Computer Engineering from the University of Massachusetts, with a focus on distributed systems.


Bala-TiruBala Tiru is a veteran leader in enterprise software development, product management and IT management spanning Internet, banking, telecom and service industries. Bala has been with Vendavo since 2010, initially with Global Services Delivery and then with enterprise product management. Prior to his current position, Bala led the Enterprise Product Management team and delivered successful product releases and new product launches. He brings vast technology, product expertise and services learnings to enhance and expand Vendavo enterprise and hybrid product offerings that increase market adoption. Previously, Bala led product management at 2Wire and delivered industry-leading solutions that catapulted 2Wire from a startup to a large corporation eventually acquired by Pace, Inc. Bala holds an M.S. in Electrical Engineering from Old Dominion University, Virginia, and an M.B.A. from Santa Clara University.


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Martha Jensen is responsible for leading Vendavo’s overall people development, organizational performance and human capital strategy. Martha brings a wealth of corporate culture, leadership and organizational development experience to Vendavo. Throughout her 20-year career, Martha has held leadership positions at various companies including Symantec, Aruba Networks, Hewlett Packard and IBM, and owned a successful consulting firm focused on global Hi-Tech companies. Martha holds a doctoral degree in organizational learning and development from the University of Southern California. 




Petri-OksanenPetri Oksanen is a Partner with Francisco Partners and focuses on investments in the software industry, with a specific emphasis on enterprise application software. Prior to joining Francisco Partners in 2005, Petri worked at Morgan Stanley in their Technology Investment Banking group in Menlo Park, California. Earlier in his career, Petri held a variety of business development, program management, and software development roles at Microsoft in Redmond, Washington. Petri serves on the board of directors of Plex Systems and Vendavo. He formerly served on the board of directors of Aconex (IPO), AdvancedMD (acquired by ADP), API Healthcare (acquired by GE Healthcare), Healthland, Source Photonics, and T-System, and was also previously involved with FP’s investments in Ex Libris (acquired by a financial sponsor), LYNX Medical Systems (acquired by Picis), Specific Media, and Webtrends.


Mike-MayorasMike Mayoras is a proven value generator with experience leading growth companies. He brings agile and modern leadership to firms, today as a business advisor and independent board director. Mike currently serves on four company boards: EPAM Systems (compensation and audit committees), JDA Software (audit committee), BuildDirect, and Avangate Software. Previously, Mike was CEO of RedPrairie, a supply chain software company, from 2007-2013. During his tenure, Red Prairie grew in revenue from $70 million to $400 million and acquired JDA Software to create a $1 billion category leader. Mike started his career in 1982 as a developer with Illinois-based Mayoras and Hittle, an enterprise software developer. He moved quickly into sales leadership, running sales operations as General Manager at The Summit Group, an ERP and supply-chain implementation firm. From there, Mike joined Ciber, an IT consultancy, via acquisition and served as EVP and corporate officer. He is an advisor to both the board and the MBA degree program at Carroll University in Wisconsin and serves on the board of the Technology Association of Georgia (TAG).


John-TrzeciakJohn Trzeciak
 is an Operating Partner with Francisco Partners and focuses predominantly on investments in the healthcare IT industry. Prior to his involvement with Francisco Partners in 2004, John had a 25-year career as an executive, advisor, and board member for emerging and established healthcare IT companies. He was co-founder of Health Systems International, a clinical information systems company that was sold to 3M in 1993. John serves on the boards of directors of HealthcareSource, Healthland, Quantros, T-System, and Vendavo. He formerly served on the boards of directors of AdvancedMD [ADP], API Healthcare [GE Healthcare], and Lynx Medical Systems [Picis/United Healthcare], NexTech Systems, and Therapeutic Research Center. John has also served as interim CEO for a number of Francisco Partners portfolio companies. Mr. Trzeciak holds a Ph.D. in Operations Research from Iowa State University.



Christine Wang is a Vice President with Francisco Partners. Prior to joining Francisco Partners in 2015, Christine worked at Advent International where she evaluated private equity investments in the business services, financial services, and technology sectors. Earlier in her career, she was an investment banker in the Financial Institutions Group at J.P. Morgan.