Our Team

Mark Warnquist

CEO & Co-Founder

Mark brings a wealth of Insurance & Tech Platform experience to his role as CEO of InShare. Prior to founding InShare with Sean Fitzsimmons, Mark led a global team responsible for Uber’s insurance claims function.

Before Uber, Mark served as Chief Claims Officer for Aviva Canada in Toronto. He has also held a number of senior leadership roles at Travelers, including International Claim VP, GL Claim VP, Middle Market Claims Lead, and Group General Counsel. Earlier in his career, Mark was a trial lawyer with leading NY and DC-based law firms.

Mark is a graduate of Penn State and George Washington University law school. He and his wife, Dana, reside in Scottsdale, AZ and have two children.

Sean Fitzsimmons

CRO & Co-Founder

Co-Founder and CRO Sean Fitzsimmons has been fortunate to have lived in the start-up world of Uber and Lyft for the past 5 years where he gained a solid understanding of the sharing economy industry and the need to be innovative in dealing with fast growth and constant change.

Sean’s core focus at Uber was to manage the global corporate risk of the company across 70+ countries and to build scalable insurance products to meet customers needs in North America. Sean initially started his career out as a reinsurance broker at Guy Carpenter & Company (MMC) before moving to Aviva to focus on growing their multinational portfolio and developing new affinity programs in the Arabian Gulf. Sean gained additional expertise as head of risk management at CSAA (a AAA Insurer) and Hewlett Packard.

Sean earned his MBA from the University of Cape Town and obtained his undergraduate degree in business from the University of the Witwatersrand.

Erin Syring

COO & Chief Legal Officer

Erin joined InShare as the COO and Chief Legal Officer in 2020 working closely with operations, sales, and compliance after more than twenty-five years previous and diverse experience in private practice, with a national insurance carrier and with a national insurance broker.

Erin spent the last two decades in a variety of executive leadership roles leading an array of teams including operations, alternative risk solutions, management liability, global, enterprise risk management, contract review, claim and risk control. She worked with a variety of insurance programs, industries and clients giving her unique insights and experience in solving the many challenges confronting businesses today.

Erin earned her Juris Doctorate from the University of Kansas School of Law.

Brandy Mayfield

Chief Underwriting Officer

Chief Underwriting Officer Brandy Mayfield builds creative/simple coverage solutions for Sharing Platforms, Asset Owners, Gig-Workers, and Gig-Users. Her leadership is key in driving InShare’s expansion as an MGA focused in the On-Demand Economy.

For over 20 years, Brandy has developed innovative insurance solutions, connecting the dots for insurance carriers and their customers. She's enjoyed geeking out in building some of the industry's first generalized linear models, renewal segmentation strategies, and multi-country coverage solutions. Most recently, she established the Shared Economy division at Allstate - extending protection to the largest ride, vehicle, and home sharing platforms in the industry.

Brandy holds degrees in Mathematics, Computer Science, and Statistics from Eastern KY University. She and her husband Marc currently reside in Phoenix.

Randall Brenner

SVP, Claims & Operations

Randall is part of InShare’s Operations team where his primary focus is claims and consulting. In addition, Randall is a licensed producer nationwide in Property & Casualty as well as Life & Health.

Prior to joining InShare, Randall was Senior Manager, Claims of Airbnb’s Insurance Solutions team. Randall’s career in insurance has spanned over 20 years between traditional insurance companies (Progressive & Travelers) and technology companies (Uber & Airbnb).

Randall holds a Bachelor’s in Politics from the University of San Francisco as well as an Associate in Claims designation. He is a Veteran of the United States Marine Corps.

Tom Lowe

SVP, Commercial Programs

Tom joined InShare as its SVP of Commercial Operations where he will drive the creation, launching and managing of new innovative programs.

Tom comes to InShare from Uber where he served as their senior risk manager. In addition to his corporate insurance responsibilities at Uber, Tom also spent time developing insurance program solutions for upcoming technologies including Uber Freight, ATG (autonomous vehicles), Uber Elevate (future of urban air mobility), JUMP (micro mobility with ebikes and scooters), and Uber Works.

Prior to his work at Uber, Tom had over 20 years as the head of risk management for several top 50 trucking companies. During his time in the trucking sector, Tom gained extensive experience in risk control, alternative risk transfer techniques, and in developing strategies for obtaining the best possible outcome for work injuries.

Tom is a graduate of Washington University with a degree in Mathematics.