--- title: "Leadership" description: "The Guidewire Leadership Team has decades of experience in P&C insurance and technology. Learn more about how our leadership is guiding success." url: "https://www.guidewire.com/fr/about/leadership.md" language: "fr" locale: "fr" --- # Leadership The Guidewire Leadership Team has decades of experience in P&C insurance and technology. Learn more about how our leadership is guiding success. Our Leadership With decades of customer-driven experience in P&C insurance and technology, Guidewire’s leadership has the background you can rely on to help move your business forward. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/hero-leadership--800w.jpg?h=415&iar=0&w=800) ### Mike Rosenbaum Mike Rosenbaum joined Guidewire as Chief Executive Officer in 2019 and has served on our board since then. Since Mike’s arrival, Guidewire has cemented its position as the leading cloud platform serving the P&C insurance industry, growing cloud adoption by over 500%, tripling cloud revenue, and expanding the Guidewire partner ecosystem to become the largest in P&C insurance. Mike’s focus on delivering value for customers, coupled with his “ship, shipmate, self” approach to prioritization, continue to shape the industry-leading platform, applications, and content trusted by insurers globally. Prior to Guidewire, Mike led product management and go-to-market strategy for core CRM products at Salesforce and served in the US Navy as a submarine officer. He has also served on the board of directors of Docusign, Inc. (NASDAQ: DOCU) since September 2025. ![Amanda McAteer, Guidewire](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-small-mike-rosenbaum--195x195.jpg?h=195&iar=0&w=195) When faced with any trade-off or decision, we make that decision based on what’s best for our customers. Thinking that way at every level of the company creates the customer-first culture that serves Guidewire and our stakeholders most effectively. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-mike-rosenbaum--540w.jpg?h=540&iar=0&w=540) ### John Mullen John leads Guidewire’s Global Sales, Delivery Services, and Customer Success organizations. He is an accomplished senior executive with more than 25 years of experience in driving high-growth teams to shape and deliver industry transformation. As head of the $4B+ North America Business Unit at Capgemini, John led a global team of professionals in delivering innovative solutions that support the strategic growth of the world’s leading brands. Previously he had led the Capgemini Insurance Business Unit, overseeing the expansion of Capgemini’s global insurance business. He began his career with eight years at Accenture. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/leadership--john-mullen--195.jpg?h=195&iar=0&w=195) With the rigor built into Guidewire’s products and roadmap, as well as our commitment to data and decision sciences, we will tirelessly develop the market-leading platform that enables our customers to transform their businesses and drive innovative marketing approaches. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-john-mullen--540w.jpg?h=540&iar=0&w=540) ### Jeff Cooper As Chief Financial Officer, Jeff is responsible for Guidewire’s financial operations, which includes FP&A, accounting, investor relations, facilities, and procurement. He contributes to strategic planning and helps assess risks and opportunities. Previously, Jeff oversaw company financials as the Vice President of Finance at Guidewire. Prior to that, he was the Chief Financial Officer at GoodData and Vice President of Finance at Rally Software. Jeff began his career as an investment banker focused on the software industry. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/leadership--jeff-cooper--195.jpg?h=195&iar=0&w=195) Finance has an exciting role to play in ensuring that we invest appropriately in our consequential transition to a cloud platform. We know that these investments will form the basis of Guidewire’s market leadership, and customer success, for years to come. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-jeff-cooper--540w.jpg?h=540&iar=0&w=540) ### Winston King Winston is responsible for Guidewire’s worldwide administrative functions, including business technology, legal, and corporate services. He also manages Guidewire’s corporate and compliance matters, as the company’s General Counsel and Secretary. Prior to Guidewire, Winston served as EVP, General Counsel, and Secretary at Infogroup and also worked at WilmerHale, an international law firm. Winston served as a clerk to Judge Bruce Selya on the US First Circuit Court of Appeals. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/leadership--winston-king--195.jpg?h=195&iar=0&w=195) Our understanding of the vital role that insurers play in our world and economy drives each of us to constantly innovate and provide the best products and services possible to our customers. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-winston-king--540w.jpg?h=540&iar=0&w=540) ### David Peterson David brings deep financial leadership to his role as Chief Accounting Officer at Guidewire, where he previously served as Corporate Controller overseeing core accounting and financial operations. Before joining the company, he worked as a consulting chief financial officer, advising organizations through complex financial decisions. He also held senior finance roles, including Chief Financial Officer, Chief Accounting Officer, and Corporate Controller, at Keynote Systems, a marketing software company. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/leadership--david-peterson--195w.jpg?h=195&iar=0&w=195) By upholding the highest standards in financial reporting and operations, we help Guidewire remain a trusted partner to our customers and a responsible steward for our stakeholders. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-david-peterson--540w.jpg?h=540&iar=0&w=540) ### Christina Colby As Guidewire’s Chief Customer Officer, Christina helps customers to realize optimal value through their journey with Guidewire. Previously, Christina led cloud sales strategy globally at Guidewire, leveraging her commercial and operational cloud experience. She brings deep consulting knowledge to Guidewire programs as well as SaaS proficiency from her 15 years at Capgemini. Christina also spent four years on the executive leadership team of Virtustream, the mission-critical cloud company of Dell Technologies. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/leadership--christina-colby--195.jpg?h=195&iar=0&w=195) We partner with our customers on every step of their journey, empowering them to achieve their business objectives for today and over the long term. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-christina-colby--540w.jpg?h=540&iar=0&w=540) ### Brigette McInnis-Day Brigette McInnis-Day is the Chief People Officer of Guidewire, bringing over 25 years of experience leading HR, operations, and organizational transformation at UiPath, Google Cloud, SAP, and Mercer. She is recognized for advancing inclusion, scaling global teams, and embedding AI and automation into HR to drive business growth. Brigette holds a Master’s in Industrial/Organizational Psychology and was named one of the Top 50 Women Leaders of Philadelphia (2024). ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/leadership-brigette-mcinnis-day--195w.jpg?h=195&iar=0&w=195) As Guidewire creates a more intelligent future for P&C insurers, we continue to leverage the passion of Guidewire employees to bring industry-specific innovations and experiences to our customers. Together, we are pushing the boundaries of what’s possible in insurance technology. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-brigette-mcinnis-day--540w.jpg?h=540&iar=0&w=540) ### Brian Desmond Brian leads Guidewire’s global marketing efforts, including demand generation, branding, and communications. Brian joined Guidewire in 2006, and during his tenure the company has been recognized as an industry-leading brand serving customers in more than 30 countries. He previously was Vice President of Marketing for PeopleSoft’s supply chain division and held marketing leadership and product marketing roles at Ketera, Ariba, and Tradex. Brian serves on the board of directors of Betterview, an insurtech that provides a geospatial predictive analytics platform for P&C insurance. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/leadership--brian-desmond--195.jpg?h=195&iar=0&w=195) After 18 years at Guidewire, I have a deep appreciation for the role P&C insurance plays in our society. This motivates me to do my part to ensure we keep improving every day to better serve our customers. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-brian-desmond--540w.jpg?h=540&iar=0&w=540) ### Diego Devalle Diego has held numerous executive positions overseeing technology and product development in the San Francisco Bay Area, India, and Europe. In his role at Guidewire, he drives design and strategy to implement engineering goals that address the needs of P&C insurers, such as the requirement to rapidly bring new and differentiating insurance products to market. Prior to Guidewire, Diego served as Vice President of Software Development and Vice President of Product and Engineering at SAP Labs. He began his enterprise software career at Baan in the Netherlands. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/leadership--diego-devalle--195.jpg?h=195&iar=0&w=195) In every customer interaction, we are committed. On day one, Guidewire set out to serve the P&C industry, and years later, the development mindset is always to extend platform capabilities to make more possible. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-diego-devalle--540w.jpg?h=540&iar=0&w=540) ### David Laker David leads Guidewire’s Global Sales, Inside Sales, and Solution Sales organizations. David is a proven senior executive with deep domain expertise in driving high performance organizations that focus on customer success. He also has vast experience working with customers across many industries on their cloud transformation journey. David has held several senior leadership positions at SAP & Salesforce. Most recently, David was the former Senior Vice President (SVP), Financial Services and Banking for North America Cloud and Technology at Oracle. In this role, he helped customers identify value and drive collaborative strategies to best meet their business goals in moving to the cloud. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/leadership--david-laker--195.jpg?h=195&iar=0&w=195) Guidewire provides the platform and expertise to take insurers and the industry to new levels of engagement, innovation, and growth. It’s an exciting time for the P&C Insurance industry as it moves its core business systems to the cloud and benefits from all the advantages this brings. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-david-laker--540w.jpg?h=540&iar=0&w=540) ### Michael Mahoney Michael Mahoney leads Guidewire’s Global Professional Services organization, helping customers adopt, scale, and realize value from the Guidewire Cloud Platform. With more than 25 years of experience in enterprise software and transformation, Michael has built and led services organizations that drive cloud growth and measurable outcomes. At Guidewire, he has repositioned Professional Services to co-engage with partners around a solutions-oriented portfolio and advance AI-enabled delivery that accelerates adoption and improves customer success. Prior to Guidewire, Michael led SAP’s $1.6B North America Services business and held senior roles across services sales, operations, and regional leadership. Earlier in his career, Michael held roles at Deloitte Consulting, advising enterprise clients on large-scale business and technology transformation. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/leadership-michael-mahoney-2026--195w.jpg?h=195&iar=0&w=195) Guidewire Professional Services is redefining how insurers move to and succeed in the cloud—combining deep domain expertise with AI-enabled delivery to accelerate outcomes, improve quality, and unlock the full value of the Guidewire platform. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-michael-mahoney--920w.jpg?h=920&iar=0&w=920) ## Meet the Executive Team ### Mike Rosenbaum Mike Rosenbaum joined Guidewire as Chief Executive Officer in 2019 and has served on our board since then. Since Mike’s arrival, Guidewire has cemented its position as the leading cloud platform serving the P&C insurance industry, growing cloud adoption by over 500%, tripling cloud revenue, and expanding the Guidewire partner ecosystem to become the largest in P&C insurance. Mike’s focus on delivering value for customers, coupled with his “ship, shipmate, self” approach to prioritization, continue to shape the industry-leading platform, applications, and content trusted by insurers globally. Prior to Guidewire, Mike led product management and go-to-market strategy for core CRM products at Salesforce and served in the US Navy as a submarine officer. He has also served on the board of directors of Docusign, Inc. (NASDAQ: DOCU) since September 2025. ![Amanda McAteer, Guidewire](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-small-mike-rosenbaum--195x195.jpg?h=195&iar=0&w=195) When faced with any trade-off or decision, we make that decision based on what’s best for our customers. Thinking that way at every level of the company creates the customer-first culture that serves Guidewire and our stakeholders most effectively. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/people/about-us-people/three-quarter-portraits/exec-bio-mike-rosenbaum--540w.jpg?h=540&iar=0&w=540) ### Michael Keller Mike has served on Guidewire’s board of directors since 2019 and has been Chairman of our Board since March 2024. Since April 2019, he has served as chairman of Guidewire’s customer Strategic Advisory Councils. Mike has also served on the board of Encova Mutual Insurance Group since August 2020. From June 2001 to June 2018, Mike was the Executive Vice President and Chief Information Officer at Nationwide Insurance and Financial Services. From January 1998 to May 2001, he served as Chief Technology Officer at JPMorgan Chase & Co. (formerly Bank One). ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-small-mike-keller--195x195.jpg?h=195&iar=0&w=195) ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-large-mike-keller--540x540.jpg?h=540&iar=0&w=540) ### Mark Anquillare Mark has served on our Board since 2024. He was President and Chief Operating Officer of Verisk Analytics, Inc. (Nasdaq: VRSK), an insurance industry data analytics and technology provider through 2023. Prior to that, Mark served as Verisk’s Chief Financial Officer from 2007 to 2016, leading the company through its 2009 IPO. Since 2023, he has been a member of the board of directors of TruBridge, Inc. (NASDAQ: TBRG), a healthcare solutions company. He currently serves as the chair of its audit committee and as a member of its compensation and innovation & technology committee. Mark has also served on the board of directors of RegEd, a RegTech solutions and compliance software provider for the financial services industry since 2025. ![Mark Anquillare](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-small-mark-anquilare2new--195x195.jpg?h=195&iar=0&w=195) ![Mark Anquillare](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-large-mark-anquilare2new--540x540.jpg?h=540&iar=0&w=540) ### David Bauer David has served on Guidewire’s board of directors since October 2022. He currently serves as Managing Partner and Co-Founder of Holding Ground Decision Intelligence LLC, which provides strategic technology assessment and diligence services for investment companies, boards, and executives, a position he has held since January 2020. From November 2014 to January 2020, David served as Managing Partner at Sand Hill East LLP and provided early-stage companies with go-to-market, product, security, technology, and operations advisory services. He also previously served as CTO at Asurion, and CISO at Morgan Stanley and Merrill Lynch. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-small-david-bauer--195x195.jpg?h=195&iar=0&w=195) ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-large-david-bauer--540x540.jpg?h=540&iar=0&w=540) ### Margaret Dillon Margie has served on Guidewire’s board of directors since 2019. From December 1993 to September 2017, she held various executive positions at Liberty Mutual Insurance Company, including Senior Vice President and Chief Financial Officer, Personal Insurance, and Executive Vice President and Chief Customer Officer, US Consumer Markets. Margie has also served on the board of directors of White Mountains Insurance Group, Ltd since May 2021, and the board of Hi Marley since February 2022. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-small-margaret-dillon--195x195.jpg?h=195&iar=0&w=195) ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-large-margaret-dillon--540x540.jpg?h=540&iar=0&w=540) ### Catherine Lego Cathy has served on Guidewire’s board of directors since 2019. She has also served on the board of directors of Cirrus Logic Inc. since 2020 and on the board of Infleqtion since 2023. From 2016 to 2021, Cathy served on the board of IPG Photonics; from 2006 to 2022 she was on the board of Lam Research; from 2013 to 2016, she served on the board of Fairchild Semiconductor International; and from 1989 to 2002 and 2004 to 2016 she was on the board of SanDisk. From June 1992 to December 2018, Cathy was an angel investor and financial consultant to early-stage technology companies via her company Lego Ventures, where she served as the principal. Cathy previously practiced as a CPA with Coopers & Lybrand (now PricewaterhouseCoopers). ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-small-catherine-lego--195x195.jpg?h=195&iar=0&w=195) ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-large-catherine-lego--540x540.jpg?h=540&iar=0&w=540) ### Rajani Ramanathan Rajani has served on Guidewire’s board of directors since June 2021. She is currently a director and an advisor/investor to several public and private technology companies in the AI, VR, blockchain, IMU/sensor, BIM technology space. Since October 2021, she has served on the board of Hayden AI, a smart city solutions provider that developed the world’s first autonomous traffic management platform. Since May 2023, she has served on the board of Sportradar, a public company that is the world's leading sports technology company, at the intersection between sports, media and betting. Previously, she has served on the board of companies such as Faro Technologies, ESI and Cloudcherry. From June 2000 to March 2014, Rajani held a variety of leadership roles at Salesforce, most recently Chief Operating Officer and Executive Vice President – Technology and Products. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-small-rajani-ramanathan--195x195.jpg?h=195&iar=0&w=195) ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-large-rajani-ramanathan--540x540.jpg?h=540&iar=0&w=540) ### Jeff Sloan Jeff has served on our Board since January 2025. He was the Chief Executive Officer of Global Payments Inc. (NYSE: GPN), a leading worldwide provider of software solutions and payments technology, from October 2013 to June 2023. Prior to that, he was Global Payment’s president from June 2010 to September 2013. Between September 1998 and May 2010, he held various executive positions at Goldman Sachs, including as worldwide head of the financial technology group and partner. With Goldman, Mr. Sloan focused on mergers and acquisitions and corporate finance, and he pioneered the development of the firm’s financial technology practice in investment banking. He has also served on the boards of directors of Corpay (NYSE: CPAY) since July 2013, NCR Voyix (NYSE: VYX) since March 2025, and Verifone, Inc. since June 2025. ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-small-jeff-sloan--195x195.jpg?h=195&iar=0&w=195) ![](https://edge.sitecorecloud.io/guidewiresodb06-guidewire0f2e-productioncd91-5186/media/images/about-us/leadership/board-of-directors/bod-large-jeff-sloan--540x540.jpg?h=540&iar=0&w=540) ## Meet the Board of Directors Want to make an impact in the Guidewire developer ecosystem? Contact the Guidewire Developer Relations team. [Apply for the Next Cohort](mailto:developer_feedback@guidewire.com) ## Get Involved View our corporate governance, stock information, shareholder services, and more. [Learn More About Investor Relations](https://ir.guidewire.com/) ## Investor Relations