Antonio Pietri

Antonio Pietri

President and Chief Executive Officer

Antonio Pietri is President and Chief Executive Officer (CEO) of AspenTech, and also serves on the company’s Board of Directors. Prior to his appointment to President and CEO, Pietri served as Executive Vice President, Worldwide Field Operations, where he led global Sales, Sales Operations, Professional Services, and Customer Support & Training. He previously served as Senior Vice President and Managing Director, Regional Operations, Asia Pacific, based in Singapore and Beijing, China.

Pietri joined AspenTech through the company’s acquisition of Setpoint, Inc. in 1996. At Setpoint, Pietri held a range of sales, services implementation, and consulting roles, where he oversaw integration of AspenTech solutions at European refinery and process manufacturing sites. In 2002, he relocated to Singapore as Vice President, Business Consulting, and was subsequently promoted to Managing Director of the Asia Pacific region.  He began his career at ABB Simcon as an applications engineer focused on advanced control and multi-variable controllers for refining.

Pietri serves on the Chemical Engineering Advisory Board at the University of Tulsa.  He was the 2017 selection for the MIT Warren K. Lewis Lectureship in Chemical Engineering, and is a frequent speaker at industry events.  He holds an MBA from the University of Houston and a BS in Chemical Engineering from the University of Tulsa.
Gary Weiss

Gary Weiss

Chief Operating Officer

Gary Weiss joined AspenTech in 2018 and serves as Chief Operating Officer. He is responsible for customer-facing operations and product leadership across AspenTech’s portfolio of asset optimization solutions in the engineering design and manufacturing and supply chain areas. With more than 25 years of experience in the software industry, he has successfully led several organizations to scale their go-to-market operations.

Weiss joined AspenTech from OpenText, where he held several leadership roles in various business units of the organization. His last role was as Senior Vice President and General Manager of the OpenText Security, Discovery and Analytics business.  His prior responsibilities included being SVP of Cloud Services, as well as SVP and GM of its Information Exchange business unit that led to the transformative acquisition of GXS for the Canadian software leader.  Before OpenText, Weiss spent eight years with Computer Associates (CA) where he was a member of the senior leadership team in security sales, business development and strategic alliances.  He started his career in the early days of RSA Security, where he was one of the sales leaders that helped drive the company to market leadership.

He holds a B.A. in Political Science from Tulane University.
Karl Johnsen

Karl Johnsen

Chief Financial Officer

Karl Johnsen joined AspenTech in 2013 and serves as Senior Vice President and Chief Financial Officer. Prior to becoming CFO, Johnsen served as Vice President, Corporate Controller bringing over twenty years of financial management and leadership experience to the company.

Prior to AspenTech, Johnsen served as Vice President, Chief Accounting Officer for Avid Technology, a leading provider of digital media content-creation products and solutions for audio, film, video, and broadcast professionals. He has also held Finance leadership roles at a variety of public and private technology and software companies including Fusion Storm, a global value added reseller of technology products and provider of professional and cloud services; GlassHouse Technologies, Inc., a global provider of data center consulting, integration and managed services; Art Technology Group, a software provider of integrated Internet-based commerce applications; and ClickTactics, Inc., a software developer of a web-based direct marketing automation solutions. Johnsen is also a CPA and started his career at Arthur Andersen, LLP.

Johnsen holds a B.S. in Accountancy from Bentley University and an MBA from Babson College.

Frederic Hammond

Frederic G. Hammond

Senior Vice President and General Counsel

Frederic G. Hammond joined AspenTech in 2005 as Senior Vice President, General Counsel, and Secretary with global responsibility for corporate governance and legal matters. Hammond has over two decades of experience in public company general counsel and global operational and transactional experience.

Prior to AspenTech, he handled SEC disclosure and other public company and technology issues as a partner at a Boston law firm. Before that, Hammond was Vice President of Business Affairs and General Counsel at Gomez Advisors, Inc., an Internet performance measurement and benchmarking technology service firm, with responsibilities for corporate finance, mergers and acquisitions, corporate and creditor restructurings and commercial contracts management.

He held earlier positions as General Counsel of Avid Technology, the publicly-held international leader in digital video and audio editing, special effects and production solutions; and as a member of the corporate department of the law firm of Ropes & Gray. Hammond is a graduate of Boston College Law School, cum laude, and Yale College.

Michele Triponey

Michele Triponey

Chief Customer Success Officer

As Chief Customer Success Officer, Michele Triponey’s mission is to ensure that customers are able to maximize and sustain the value they derive from AspenTech software. She oversees the company’s Professional Services, Customer Support and Training, Customer Success Management, and Customer Care, and has led her teams to meet and exceed their financial performance metrics.

Prior to joining AspenTech in 2005, Triponey served as Vice President for Information Technology Services at Ajilon Consulting and managed the Customer Support and Help Desk sales and services. As the business lead, she directed an international team serving industrial, pharmaceutical, and financial services customers, and sold solutions to customers that increased their customer service levels at reduced costs. Before joining Ajilon, Triponey was responsible for system administration at Synertech, and held positions at Keystone Medical Solutions and Bloomsburg University. She is a graduate of Clarion University in Pennsylvania and holds an MBA from Bloomsburg University.

Willie Chan

Willie K. Chan

Chief Technology Officer

Willie K. Chan joined AspenTech in 1982 and serves as Chief Technology Officer, bringing to this role more than 35 years of experience in developing computer software solutions for optimizing the performance of chemical and refining processes. In this role, Chan leads the technology strategy, R&D and quality assurance functions for AspenTech products on a global basis.

Chan was a member of the Massachusetts Institute of Technology ASPEN research program that later became AspenTech, and has held a variety of senior technical and management positions in the company. Most recently, Chan was Senior Vice President, Technology, where he led the establishment of AspenTech’s R&D Centers of Excellence in Bedford MA, Houston TX and Shanghai China. He also drove the integration of aspenONE software products, incorporating molecular modeling, solids process simulation, sulfur recovery modeling, process safety, dock/pipeline scheduling, machine learning and other technologies into the aspenONE suite. He also oversaw the development of the next-generation user interfaces, activation workflows and other technology advancements.

Previously, Chan held a number of R&D leadership positions for Engineering Products at AspenTech, including the integration of the HYSYS family of products and the creation of the Aspen Engineering Suite. He began his career at AspenTech by leading the development of separations and petroleum technologies.

Chan holds Master of Science and Bachelor of Science degrees in Chemical Engineering from the Massachusetts Institute of Technology.

John Hague

John Hague

Senior Vice President and General Manager, Asset Performance Management (APM) Business Unit

John Hague is Senior Vice President and General Manager of AspenTech’s Asset Performance Management (APM) business unit. In this role, John is responsible for executing the Company’s APM global business strategy for the products, sales and services of the APM product line.  His responsibilities include driving sales in the Company’s core process industry markets, as well as other asset-intensive industries that can benefit from Asset Optimization -- such as metals & mining, power, pulp & paper, waste water treatment and transportation – employing direct and indirect business approaches.


Over the past 20 years, John has served in a variety of key executive roles at AspenTech, overseeing sales organizations in North and Latin America, building out the Middle East and North Africa business region as well as driving AspenTech’s global partner strategy and several key acquisitions. John previously worked with Conoco where he held management positions in several business areas including roles supporting the DuPont organization.  He also has held management positions at Scientific Software and Advanced Pipeline Technologies.  He holds a B.S. and an MBA from Oklahoma State University.

Glover Lawrence

Glover Lawrence

Senior Vice President, Corporate Development

Glover Lawrence is AspenTech’s Senior Vice President of Corporate Development and is responsible for the company’s corporate development and business planning processes. Previously, he held a variety of corporate development roles in investment banking and high technology environments, most recently at Avid Technology. At Avid he led acquisition strategy and managed the company’s strategic planning processes, working closely with Executive Management and the Board of Directors.

Lawrence began his career with Morgan Stanley as a financial analyst where he performed mergers and acquisition analyses for a number of clients including companies in the Chemical and Manufacturing industries. At Hambrecht & Quist (now part of JPMorgan), he advised clients on strategic transactions including acquisitions, divestitures and joint ventures, and he has served as a Managing Director in the Venture Fund at Oracle. He also co-founded and served for five years as a Managing Director with McNamee Lawrence & Co., an international investment banking advisory firm, before joining Avid.

Lawrence holds a Bachelor’s degree from Yale and an MBA from the Stanford Graduate School of Business.

Skip Maloney

Skip Maloney

Senior Vice President and Chief Human Resources Officer

Skip Maloney joined AspenTech in 2018 as SVP and Chief Human Resources Officer (CHRO).  He is responsible for development and engagement of the company’s diverse global workforce, including thought leadership for the organization’s culture as AspenTech evolves into a new period of growth.  Initiatives he is implementing to support this strategy include differentiated talent models and agile organizational methods, building on AspenTech’s strong history of innovation and execution.  Skip has more than 25 years of experience leading creative solutions for optimizing global workforce outcomes, with special emphasis on executive coaching, predictive analytics and talent management strategies. 
Prior to AspenTech, Maloney served as Chief Human Resources Officer at Netscout Systems, Inc., a $1.5B provider of application, network and cybersecurity performance management software.  As CHRO, he designed and led HR strategy for a 3,000+ employee global organization with offices in over 40 countries.  At Netscout, he spearheaded the assimilation of teams and organizations from multiple acquisitions, and led an organizational design strategy that resulted in a more unified executive leadership team. 
Previously, Skip was VP of Human Resources at Lake Region Medical, where he was responsible for overall HR strategy. He also led HR functions at Brooks Automation and Mercury Computer Systems, and is a Certified Professional Executive Coach.
Lawrence Schwartz

Lawrence Schwartz

Senior Vice President and Chief Marketing Officer

Lawrence Schwartz joined AspenTech in 2018 as SVP and Chief Marketing Officer (CMO). He is responsible for Corporate Marketing and brings to AspenTech more than 20 years of experience building world-class marketing organizations for growing companies.

Most recently, Schwartz served as CMO at SoftwareONE, a $7B software and cloud portfolio management company with business in over 80 countries. While at SoftwareONE, he grew press and industry awareness, built a diverse digital demand generation portfolio, rolled out new branding and messaging, led multiple international events, developed thought leadership in a variety of forums, and launched several new offerings to the marketplace. Prior to SoftwareONE, he served as CMO for Attunity, a leading provider of information availability software solutions for the enterprise. Previously, he held senior marketing and product management positions at EMC, E Ink Corporation and Tokutek.

Schwartz is a sought-after speaker at industry conferences and has been quoted in numerous publications. He holds an MBA from Harvard Business School, an MS in Mechanical Engineering from the Massachusetts Institute of Technology and a BS in Aeronautics and Astronautics, also from the Massachusetts Institute of Technology.

Bill Scudder

Bill Scudder

Senior Vice President and Chief Information Officer

Bill Scudder joined AspenTech in 2015 and serves as Senior Vice President and Chief Information Officer.  He has more than 25 years of IT leadership experience, developing and implementing mission-critical, global technologies and building the operations and IT organizations to support them.

Prior to AspenTech he was Vice President and Chief Information Officer at Sonus Networks, where in 2011 he was named CIO of the Year by the Massachusetts Technology Leadership Council.  Before Sonus, he was Senior Director of Information Technology at EMC, leading IT for its RSA Security Division and holding senior IT positions at RSA prior to the acquisition.  Previously, he held executive positions at the UK-based Smith & Nephew, a $2B global manufacturer of medical devices and consumer healthcare products.

Scudder holds a B.S. in Mechanical Engineering from Rensselaer Polytechnic Institute, and an MBA from Boston University.